root / tcg / i386 / tcg-target.c @ bbc863bf
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1 | c896fe29 | bellard | /*
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2 | c896fe29 | bellard | * Tiny Code Generator for QEMU
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3 | c896fe29 | bellard | *
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4 | c896fe29 | bellard | * Copyright (c) 2008 Fabrice Bellard
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5 | c896fe29 | bellard | *
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6 | c896fe29 | bellard | * Permission is hereby granted, free of charge, to any person obtaining a copy
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7 | c896fe29 | bellard | * of this software and associated documentation files (the "Software"), to deal
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8 | c896fe29 | bellard | * in the Software without restriction, including without limitation the rights
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9 | c896fe29 | bellard | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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10 | c896fe29 | bellard | * copies of the Software, and to permit persons to whom the Software is
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11 | c896fe29 | bellard | * furnished to do so, subject to the following conditions:
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12 | c896fe29 | bellard | *
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13 | c896fe29 | bellard | * The above copyright notice and this permission notice shall be included in
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14 | c896fe29 | bellard | * all copies or substantial portions of the Software.
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15 | c896fe29 | bellard | *
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16 | c896fe29 | bellard | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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17 | c896fe29 | bellard | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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18 | c896fe29 | bellard | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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19 | c896fe29 | bellard | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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20 | c896fe29 | bellard | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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21 | c896fe29 | bellard | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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22 | c896fe29 | bellard | * THE SOFTWARE.
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23 | c896fe29 | bellard | */
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24 | d4a9eb1f | blueswir1 | |
25 | d4a9eb1f | blueswir1 | #ifndef NDEBUG
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26 | d4a9eb1f | blueswir1 | static const char * const tcg_target_reg_names[TCG_TARGET_NB_REGS] = { |
27 | 5d8a4f8f | Richard Henderson | #if TCG_TARGET_REG_BITS == 64 |
28 | 5d8a4f8f | Richard Henderson | "%rax", "%rcx", "%rdx", "%rbx", "%rsp", "%rbp", "%rsi", "%rdi", |
29 | 5d8a4f8f | Richard Henderson | "%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14", "%r15", |
30 | 5d8a4f8f | Richard Henderson | #else
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31 | 5d8a4f8f | Richard Henderson | "%eax", "%ecx", "%edx", "%ebx", "%esp", "%ebp", "%esi", "%edi", |
32 | 5d8a4f8f | Richard Henderson | #endif
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33 | c896fe29 | bellard | }; |
34 | d4a9eb1f | blueswir1 | #endif
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35 | c896fe29 | bellard | |
36 | d4a9eb1f | blueswir1 | static const int tcg_target_reg_alloc_order[] = { |
37 | 5d8a4f8f | Richard Henderson | #if TCG_TARGET_REG_BITS == 64 |
38 | 5d8a4f8f | Richard Henderson | TCG_REG_RBP, |
39 | 5d8a4f8f | Richard Henderson | TCG_REG_RBX, |
40 | 5d8a4f8f | Richard Henderson | TCG_REG_R12, |
41 | 5d8a4f8f | Richard Henderson | TCG_REG_R13, |
42 | 5d8a4f8f | Richard Henderson | TCG_REG_R14, |
43 | 5d8a4f8f | Richard Henderson | TCG_REG_R15, |
44 | 5d8a4f8f | Richard Henderson | TCG_REG_R10, |
45 | 5d8a4f8f | Richard Henderson | TCG_REG_R11, |
46 | 5d8a4f8f | Richard Henderson | TCG_REG_R9, |
47 | 5d8a4f8f | Richard Henderson | TCG_REG_R8, |
48 | 5d8a4f8f | Richard Henderson | TCG_REG_RCX, |
49 | 5d8a4f8f | Richard Henderson | TCG_REG_RDX, |
50 | 5d8a4f8f | Richard Henderson | TCG_REG_RSI, |
51 | 5d8a4f8f | Richard Henderson | TCG_REG_RDI, |
52 | 5d8a4f8f | Richard Henderson | TCG_REG_RAX, |
53 | 5d8a4f8f | Richard Henderson | #else
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54 | c896fe29 | bellard | TCG_REG_EBX, |
55 | c896fe29 | bellard | TCG_REG_ESI, |
56 | c896fe29 | bellard | TCG_REG_EDI, |
57 | c896fe29 | bellard | TCG_REG_EBP, |
58 | 6648e296 | Richard Henderson | TCG_REG_ECX, |
59 | 6648e296 | Richard Henderson | TCG_REG_EDX, |
60 | 6648e296 | Richard Henderson | TCG_REG_EAX, |
61 | 5d8a4f8f | Richard Henderson | #endif
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62 | c896fe29 | bellard | }; |
63 | c896fe29 | bellard | |
64 | 5d8a4f8f | Richard Henderson | static const int tcg_target_call_iarg_regs[] = { |
65 | 5d8a4f8f | Richard Henderson | #if TCG_TARGET_REG_BITS == 64 |
66 | 8d918718 | Stefan Weil | #if defined(_WIN64)
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67 | 8d918718 | Stefan Weil | TCG_REG_RCX, |
68 | 8d918718 | Stefan Weil | TCG_REG_RDX, |
69 | 8d918718 | Stefan Weil | #else
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70 | 5d8a4f8f | Richard Henderson | TCG_REG_RDI, |
71 | 5d8a4f8f | Richard Henderson | TCG_REG_RSI, |
72 | 5d8a4f8f | Richard Henderson | TCG_REG_RDX, |
73 | 5d8a4f8f | Richard Henderson | TCG_REG_RCX, |
74 | 8d918718 | Stefan Weil | #endif
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75 | 5d8a4f8f | Richard Henderson | TCG_REG_R8, |
76 | 5d8a4f8f | Richard Henderson | TCG_REG_R9, |
77 | 5d8a4f8f | Richard Henderson | #else
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78 | d73685e3 | Stefan Weil | /* 32 bit mode uses stack based calling convention (GCC default). */
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79 | 5d8a4f8f | Richard Henderson | #endif
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80 | 5d8a4f8f | Richard Henderson | }; |
81 | 5d8a4f8f | Richard Henderson | |
82 | 68af23af | Stefan Weil | static const int tcg_target_call_oarg_regs[] = { |
83 | 5d8a4f8f | Richard Henderson | TCG_REG_EAX, |
84 | 68af23af | Stefan Weil | #if TCG_TARGET_REG_BITS == 32 |
85 | 5d8a4f8f | Richard Henderson | TCG_REG_EDX |
86 | 68af23af | Stefan Weil | #endif
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87 | 5d8a4f8f | Richard Henderson | }; |
88 | c896fe29 | bellard | |
89 | b18212c6 | Stefan Weil | /* Registers used with L constraint, which are the first argument
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90 | b18212c6 | Stefan Weil | registers on x86_64, and two random call clobbered registers on
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91 | b18212c6 | Stefan Weil | i386. */
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92 | b18212c6 | Stefan Weil | #if TCG_TARGET_REG_BITS == 64 |
93 | b18212c6 | Stefan Weil | # define TCG_REG_L0 tcg_target_call_iarg_regs[0] |
94 | b18212c6 | Stefan Weil | # define TCG_REG_L1 tcg_target_call_iarg_regs[1] |
95 | b18212c6 | Stefan Weil | #else
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96 | b18212c6 | Stefan Weil | # define TCG_REG_L0 TCG_REG_EAX
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97 | b18212c6 | Stefan Weil | # define TCG_REG_L1 TCG_REG_EDX
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98 | b18212c6 | Stefan Weil | #endif
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99 | b18212c6 | Stefan Weil | |
100 | 76a347e1 | Richard Henderson | /* For 32-bit, we are going to attempt to determine at runtime whether cmov
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101 | 76a347e1 | Richard Henderson | is available. However, the host compiler must supply <cpuid.h>, as we're
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102 | 76a347e1 | Richard Henderson | not going to go so far as our own inline assembly. */
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103 | 76a347e1 | Richard Henderson | #if TCG_TARGET_REG_BITS == 64 |
104 | 76a347e1 | Richard Henderson | # define have_cmov 1 |
105 | 76a347e1 | Richard Henderson | #elif defined(CONFIG_CPUID_H)
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106 | 76a347e1 | Richard Henderson | #include <cpuid.h> |
107 | 76a347e1 | Richard Henderson | static bool have_cmov; |
108 | 76a347e1 | Richard Henderson | #else
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109 | 76a347e1 | Richard Henderson | # define have_cmov 0 |
110 | 76a347e1 | Richard Henderson | #endif
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111 | 76a347e1 | Richard Henderson | |
112 | b03cce8e | bellard | static uint8_t *tb_ret_addr;
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113 | b03cce8e | bellard | |
114 | 78686523 | Richard Henderson | static void patch_reloc(uint8_t *code_ptr, int type, |
115 | f54b3f92 | aurel32 | tcg_target_long value, tcg_target_long addend) |
116 | c896fe29 | bellard | { |
117 | f54b3f92 | aurel32 | value += addend; |
118 | c896fe29 | bellard | switch(type) {
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119 | c896fe29 | bellard | case R_386_PC32:
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120 | 5d8a4f8f | Richard Henderson | value -= (uintptr_t)code_ptr; |
121 | 5d8a4f8f | Richard Henderson | if (value != (int32_t)value) {
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122 | 5d8a4f8f | Richard Henderson | tcg_abort(); |
123 | 5d8a4f8f | Richard Henderson | } |
124 | 5d8a4f8f | Richard Henderson | *(uint32_t *)code_ptr = value; |
125 | c896fe29 | bellard | break;
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126 | f75b56c1 | Richard Henderson | case R_386_PC8:
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127 | 5d8a4f8f | Richard Henderson | value -= (uintptr_t)code_ptr; |
128 | f75b56c1 | Richard Henderson | if (value != (int8_t)value) {
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129 | f75b56c1 | Richard Henderson | tcg_abort(); |
130 | f75b56c1 | Richard Henderson | } |
131 | f75b56c1 | Richard Henderson | *(uint8_t *)code_ptr = value; |
132 | f75b56c1 | Richard Henderson | break;
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133 | c896fe29 | bellard | default:
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134 | c896fe29 | bellard | tcg_abort(); |
135 | c896fe29 | bellard | } |
136 | c896fe29 | bellard | } |
137 | c896fe29 | bellard | |
138 | c896fe29 | bellard | /* parse target specific constraints */
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139 | d4a9eb1f | blueswir1 | static int target_parse_constraint(TCGArgConstraint *ct, const char **pct_str) |
140 | c896fe29 | bellard | { |
141 | c896fe29 | bellard | const char *ct_str; |
142 | c896fe29 | bellard | |
143 | c896fe29 | bellard | ct_str = *pct_str; |
144 | c896fe29 | bellard | switch(ct_str[0]) { |
145 | c896fe29 | bellard | case 'a': |
146 | c896fe29 | bellard | ct->ct |= TCG_CT_REG; |
147 | c896fe29 | bellard | tcg_regset_set_reg(ct->u.regs, TCG_REG_EAX); |
148 | c896fe29 | bellard | break;
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149 | c896fe29 | bellard | case 'b': |
150 | c896fe29 | bellard | ct->ct |= TCG_CT_REG; |
151 | c896fe29 | bellard | tcg_regset_set_reg(ct->u.regs, TCG_REG_EBX); |
152 | c896fe29 | bellard | break;
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153 | c896fe29 | bellard | case 'c': |
154 | c896fe29 | bellard | ct->ct |= TCG_CT_REG; |
155 | c896fe29 | bellard | tcg_regset_set_reg(ct->u.regs, TCG_REG_ECX); |
156 | c896fe29 | bellard | break;
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157 | c896fe29 | bellard | case 'd': |
158 | c896fe29 | bellard | ct->ct |= TCG_CT_REG; |
159 | c896fe29 | bellard | tcg_regset_set_reg(ct->u.regs, TCG_REG_EDX); |
160 | c896fe29 | bellard | break;
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161 | c896fe29 | bellard | case 'S': |
162 | c896fe29 | bellard | ct->ct |= TCG_CT_REG; |
163 | c896fe29 | bellard | tcg_regset_set_reg(ct->u.regs, TCG_REG_ESI); |
164 | c896fe29 | bellard | break;
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165 | c896fe29 | bellard | case 'D': |
166 | c896fe29 | bellard | ct->ct |= TCG_CT_REG; |
167 | c896fe29 | bellard | tcg_regset_set_reg(ct->u.regs, TCG_REG_EDI); |
168 | c896fe29 | bellard | break;
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169 | c896fe29 | bellard | case 'q': |
170 | c896fe29 | bellard | ct->ct |= TCG_CT_REG; |
171 | 5d8a4f8f | Richard Henderson | if (TCG_TARGET_REG_BITS == 64) { |
172 | 5d8a4f8f | Richard Henderson | tcg_regset_set32(ct->u.regs, 0, 0xffff); |
173 | 5d8a4f8f | Richard Henderson | } else {
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174 | 5d8a4f8f | Richard Henderson | tcg_regset_set32(ct->u.regs, 0, 0xf); |
175 | 5d8a4f8f | Richard Henderson | } |
176 | c896fe29 | bellard | break;
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177 | a4773324 | Jan Kiszka | case 'Q': |
178 | a4773324 | Jan Kiszka | ct->ct |= TCG_CT_REG; |
179 | a4773324 | Jan Kiszka | tcg_regset_set32(ct->u.regs, 0, 0xf); |
180 | a4773324 | Jan Kiszka | break;
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181 | c896fe29 | bellard | case 'r': |
182 | c896fe29 | bellard | ct->ct |= TCG_CT_REG; |
183 | 5d8a4f8f | Richard Henderson | if (TCG_TARGET_REG_BITS == 64) { |
184 | 5d8a4f8f | Richard Henderson | tcg_regset_set32(ct->u.regs, 0, 0xffff); |
185 | 5d8a4f8f | Richard Henderson | } else {
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186 | 5d8a4f8f | Richard Henderson | tcg_regset_set32(ct->u.regs, 0, 0xff); |
187 | 5d8a4f8f | Richard Henderson | } |
188 | c896fe29 | bellard | break;
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189 | c896fe29 | bellard | |
190 | c896fe29 | bellard | /* qemu_ld/st address constraint */
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191 | c896fe29 | bellard | case 'L': |
192 | c896fe29 | bellard | ct->ct |= TCG_CT_REG; |
193 | b18212c6 | Stefan Weil | #if TCG_TARGET_REG_BITS == 64 |
194 | 5d8a4f8f | Richard Henderson | tcg_regset_set32(ct->u.regs, 0, 0xffff); |
195 | b18212c6 | Stefan Weil | #else
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196 | 5d8a4f8f | Richard Henderson | tcg_regset_set32(ct->u.regs, 0, 0xff); |
197 | b18212c6 | Stefan Weil | #endif
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198 | 17b91491 | Aurelien Jarno | tcg_regset_reset_reg(ct->u.regs, TCG_REG_L0); |
199 | 17b91491 | Aurelien Jarno | tcg_regset_reset_reg(ct->u.regs, TCG_REG_L1); |
200 | 5d8a4f8f | Richard Henderson | break;
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201 | 5d8a4f8f | Richard Henderson | |
202 | 5d8a4f8f | Richard Henderson | case 'e': |
203 | 5d8a4f8f | Richard Henderson | ct->ct |= TCG_CT_CONST_S32; |
204 | 5d8a4f8f | Richard Henderson | break;
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205 | 5d8a4f8f | Richard Henderson | case 'Z': |
206 | 5d8a4f8f | Richard Henderson | ct->ct |= TCG_CT_CONST_U32; |
207 | c896fe29 | bellard | break;
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208 | 5d8a4f8f | Richard Henderson | |
209 | c896fe29 | bellard | default:
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210 | c896fe29 | bellard | return -1; |
211 | c896fe29 | bellard | } |
212 | c896fe29 | bellard | ct_str++; |
213 | c896fe29 | bellard | *pct_str = ct_str; |
214 | c896fe29 | bellard | return 0; |
215 | c896fe29 | bellard | } |
216 | c896fe29 | bellard | |
217 | c896fe29 | bellard | /* test if a constant matches the constraint */
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218 | c896fe29 | bellard | static inline int tcg_target_const_match(tcg_target_long val, |
219 | c896fe29 | bellard | const TCGArgConstraint *arg_ct)
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220 | c896fe29 | bellard | { |
221 | 5d8a4f8f | Richard Henderson | int ct = arg_ct->ct;
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222 | 5d8a4f8f | Richard Henderson | if (ct & TCG_CT_CONST) {
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223 | c896fe29 | bellard | return 1; |
224 | 5d8a4f8f | Richard Henderson | } |
225 | 5d8a4f8f | Richard Henderson | if ((ct & TCG_CT_CONST_S32) && val == (int32_t)val) {
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226 | 5d8a4f8f | Richard Henderson | return 1; |
227 | 5d8a4f8f | Richard Henderson | } |
228 | 5d8a4f8f | Richard Henderson | if ((ct & TCG_CT_CONST_U32) && val == (uint32_t)val) {
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229 | 5d8a4f8f | Richard Henderson | return 1; |
230 | 5d8a4f8f | Richard Henderson | } |
231 | 5d8a4f8f | Richard Henderson | return 0; |
232 | c896fe29 | bellard | } |
233 | c896fe29 | bellard | |
234 | 5d8a4f8f | Richard Henderson | #if TCG_TARGET_REG_BITS == 64 |
235 | 5d8a4f8f | Richard Henderson | # define LOWREGMASK(x) ((x) & 7) |
236 | 5d8a4f8f | Richard Henderson | #else
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237 | 5d8a4f8f | Richard Henderson | # define LOWREGMASK(x) (x)
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238 | 5d8a4f8f | Richard Henderson | #endif
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239 | 5d8a4f8f | Richard Henderson | |
240 | 96b4cf38 | Richard Henderson | #define P_EXT 0x100 /* 0x0f opcode prefix */ |
241 | 96b4cf38 | Richard Henderson | #define P_DATA16 0x200 /* 0x66 opcode prefix */ |
242 | 5d8a4f8f | Richard Henderson | #if TCG_TARGET_REG_BITS == 64 |
243 | 5d8a4f8f | Richard Henderson | # define P_ADDR32 0x400 /* 0x67 opcode prefix */ |
244 | 5d8a4f8f | Richard Henderson | # define P_REXW 0x800 /* Set REX.W = 1 */ |
245 | 5d8a4f8f | Richard Henderson | # define P_REXB_R 0x1000 /* REG field as byte register */ |
246 | 5d8a4f8f | Richard Henderson | # define P_REXB_RM 0x2000 /* R/M field as byte register */ |
247 | 44b37ace | Richard Henderson | # define P_GS 0x4000 /* gs segment override */ |
248 | 5d8a4f8f | Richard Henderson | #else
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249 | 5d8a4f8f | Richard Henderson | # define P_ADDR32 0 |
250 | 5d8a4f8f | Richard Henderson | # define P_REXW 0 |
251 | 5d8a4f8f | Richard Henderson | # define P_REXB_R 0 |
252 | 5d8a4f8f | Richard Henderson | # define P_REXB_RM 0 |
253 | 44b37ace | Richard Henderson | # define P_GS 0 |
254 | 5d8a4f8f | Richard Henderson | #endif
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255 | fcb5dac1 | Richard Henderson | |
256 | a369a702 | Richard Henderson | #define OPC_ARITH_EvIz (0x81) |
257 | a369a702 | Richard Henderson | #define OPC_ARITH_EvIb (0x83) |
258 | 81570a70 | Richard Henderson | #define OPC_ARITH_GvEv (0x03) /* ... plus (ARITH_FOO << 3) */ |
259 | 81570a70 | Richard Henderson | #define OPC_ADD_GvEv (OPC_ARITH_GvEv | (ARITH_ADD << 3)) |
260 | fcb5dac1 | Richard Henderson | #define OPC_BSWAP (0xc8 | P_EXT) |
261 | aadb21a4 | Richard Henderson | #define OPC_CALL_Jz (0xe8) |
262 | d0a16297 | Richard Henderson | #define OPC_CMOVCC (0x40 | P_EXT) /* ... plus condition code */ |
263 | 81570a70 | Richard Henderson | #define OPC_CMP_GvEv (OPC_ARITH_GvEv | (ARITH_CMP << 3)) |
264 | 81570a70 | Richard Henderson | #define OPC_DEC_r32 (0x48) |
265 | 0566d387 | Richard Henderson | #define OPC_IMUL_GvEv (0xaf | P_EXT) |
266 | 0566d387 | Richard Henderson | #define OPC_IMUL_GvEvIb (0x6b) |
267 | 0566d387 | Richard Henderson | #define OPC_IMUL_GvEvIz (0x69) |
268 | 81570a70 | Richard Henderson | #define OPC_INC_r32 (0x40) |
269 | da441cff | Richard Henderson | #define OPC_JCC_long (0x80 | P_EXT) /* ... plus condition code */ |
270 | da441cff | Richard Henderson | #define OPC_JCC_short (0x70) /* ... plus condition code */ |
271 | da441cff | Richard Henderson | #define OPC_JMP_long (0xe9) |
272 | da441cff | Richard Henderson | #define OPC_JMP_short (0xeb) |
273 | 34a6d0b7 | Richard Henderson | #define OPC_LEA (0x8d) |
274 | af266089 | Richard Henderson | #define OPC_MOVB_EvGv (0x88) /* stores, more or less */ |
275 | af266089 | Richard Henderson | #define OPC_MOVL_EvGv (0x89) /* stores, more or less */ |
276 | af266089 | Richard Henderson | #define OPC_MOVL_GvEv (0x8b) /* loads, more or less */ |
277 | 5c2d2a9e | Aurelien Jarno | #define OPC_MOVB_EvIz (0xc6) |
278 | 5d8a4f8f | Richard Henderson | #define OPC_MOVL_EvIz (0xc7) |
279 | ef10b106 | Richard Henderson | #define OPC_MOVL_Iv (0xb8) |
280 | 6817c355 | Richard Henderson | #define OPC_MOVSBL (0xbe | P_EXT) |
281 | 6817c355 | Richard Henderson | #define OPC_MOVSWL (0xbf | P_EXT) |
282 | 5d8a4f8f | Richard Henderson | #define OPC_MOVSLQ (0x63 | P_REXW) |
283 | 55e082a7 | Richard Henderson | #define OPC_MOVZBL (0xb6 | P_EXT) |
284 | 55e082a7 | Richard Henderson | #define OPC_MOVZWL (0xb7 | P_EXT) |
285 | 6858614e | Richard Henderson | #define OPC_POP_r32 (0x58) |
286 | 6858614e | Richard Henderson | #define OPC_PUSH_r32 (0x50) |
287 | 6858614e | Richard Henderson | #define OPC_PUSH_Iv (0x68) |
288 | 6858614e | Richard Henderson | #define OPC_PUSH_Ib (0x6a) |
289 | 3c3accc6 | Richard Henderson | #define OPC_RET (0xc3) |
290 | 5d8a4f8f | Richard Henderson | #define OPC_SETCC (0x90 | P_EXT | P_REXB_RM) /* ... plus cc */ |
291 | f53dba01 | Richard Henderson | #define OPC_SHIFT_1 (0xd1) |
292 | f53dba01 | Richard Henderson | #define OPC_SHIFT_Ib (0xc1) |
293 | f53dba01 | Richard Henderson | #define OPC_SHIFT_cl (0xd3) |
294 | 81570a70 | Richard Henderson | #define OPC_TESTL (0x85) |
295 | b3e66df7 | Richard Henderson | #define OPC_XCHG_ax_r32 (0x90) |
296 | fcb5dac1 | Richard Henderson | |
297 | 9363dedb | Richard Henderson | #define OPC_GRP3_Ev (0xf7) |
298 | 9363dedb | Richard Henderson | #define OPC_GRP5 (0xff) |
299 | 9363dedb | Richard Henderson | |
300 | 9363dedb | Richard Henderson | /* Group 1 opcode extensions for 0x80-0x83.
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301 | 9363dedb | Richard Henderson | These are also used as modifiers for OPC_ARITH. */
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302 | c896fe29 | bellard | #define ARITH_ADD 0 |
303 | c896fe29 | bellard | #define ARITH_OR 1 |
304 | c896fe29 | bellard | #define ARITH_ADC 2 |
305 | c896fe29 | bellard | #define ARITH_SBB 3 |
306 | c896fe29 | bellard | #define ARITH_AND 4 |
307 | c896fe29 | bellard | #define ARITH_SUB 5 |
308 | c896fe29 | bellard | #define ARITH_XOR 6 |
309 | c896fe29 | bellard | #define ARITH_CMP 7 |
310 | c896fe29 | bellard | |
311 | da441cff | Richard Henderson | /* Group 2 opcode extensions for 0xc0, 0xc1, 0xd0-0xd3. */
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312 | 9619376c | aurel32 | #define SHIFT_ROL 0 |
313 | 9619376c | aurel32 | #define SHIFT_ROR 1 |
314 | c896fe29 | bellard | #define SHIFT_SHL 4 |
315 | c896fe29 | bellard | #define SHIFT_SHR 5 |
316 | c896fe29 | bellard | #define SHIFT_SAR 7 |
317 | c896fe29 | bellard | |
318 | 9363dedb | Richard Henderson | /* Group 3 opcode extensions for 0xf6, 0xf7. To be used with OPC_GRP3. */
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319 | 9363dedb | Richard Henderson | #define EXT3_NOT 2 |
320 | 9363dedb | Richard Henderson | #define EXT3_NEG 3 |
321 | 9363dedb | Richard Henderson | #define EXT3_MUL 4 |
322 | 9363dedb | Richard Henderson | #define EXT3_IMUL 5 |
323 | 9363dedb | Richard Henderson | #define EXT3_DIV 6 |
324 | 9363dedb | Richard Henderson | #define EXT3_IDIV 7 |
325 | 9363dedb | Richard Henderson | |
326 | 9363dedb | Richard Henderson | /* Group 5 opcode extensions for 0xff. To be used with OPC_GRP5. */
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327 | 5d8a4f8f | Richard Henderson | #define EXT5_INC_Ev 0 |
328 | 5d8a4f8f | Richard Henderson | #define EXT5_DEC_Ev 1 |
329 | 9363dedb | Richard Henderson | #define EXT5_CALLN_Ev 2 |
330 | 9363dedb | Richard Henderson | #define EXT5_JMPN_Ev 4 |
331 | da441cff | Richard Henderson | |
332 | da441cff | Richard Henderson | /* Condition codes to be added to OPC_JCC_{long,short}. */
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333 | c896fe29 | bellard | #define JCC_JMP (-1) |
334 | c896fe29 | bellard | #define JCC_JO 0x0 |
335 | c896fe29 | bellard | #define JCC_JNO 0x1 |
336 | c896fe29 | bellard | #define JCC_JB 0x2 |
337 | c896fe29 | bellard | #define JCC_JAE 0x3 |
338 | c896fe29 | bellard | #define JCC_JE 0x4 |
339 | c896fe29 | bellard | #define JCC_JNE 0x5 |
340 | c896fe29 | bellard | #define JCC_JBE 0x6 |
341 | c896fe29 | bellard | #define JCC_JA 0x7 |
342 | c896fe29 | bellard | #define JCC_JS 0x8 |
343 | c896fe29 | bellard | #define JCC_JNS 0x9 |
344 | c896fe29 | bellard | #define JCC_JP 0xa |
345 | c896fe29 | bellard | #define JCC_JNP 0xb |
346 | c896fe29 | bellard | #define JCC_JL 0xc |
347 | c896fe29 | bellard | #define JCC_JGE 0xd |
348 | c896fe29 | bellard | #define JCC_JLE 0xe |
349 | c896fe29 | bellard | #define JCC_JG 0xf |
350 | c896fe29 | bellard | |
351 | 0aed257f | Richard Henderson | static const uint8_t tcg_cond_to_jcc[] = { |
352 | c896fe29 | bellard | [TCG_COND_EQ] = JCC_JE, |
353 | c896fe29 | bellard | [TCG_COND_NE] = JCC_JNE, |
354 | c896fe29 | bellard | [TCG_COND_LT] = JCC_JL, |
355 | c896fe29 | bellard | [TCG_COND_GE] = JCC_JGE, |
356 | c896fe29 | bellard | [TCG_COND_LE] = JCC_JLE, |
357 | c896fe29 | bellard | [TCG_COND_GT] = JCC_JG, |
358 | c896fe29 | bellard | [TCG_COND_LTU] = JCC_JB, |
359 | c896fe29 | bellard | [TCG_COND_GEU] = JCC_JAE, |
360 | c896fe29 | bellard | [TCG_COND_LEU] = JCC_JBE, |
361 | c896fe29 | bellard | [TCG_COND_GTU] = JCC_JA, |
362 | c896fe29 | bellard | }; |
363 | c896fe29 | bellard | |
364 | 5d8a4f8f | Richard Henderson | #if TCG_TARGET_REG_BITS == 64 |
365 | 5d8a4f8f | Richard Henderson | static void tcg_out_opc(TCGContext *s, int opc, int r, int rm, int x) |
366 | 5d8a4f8f | Richard Henderson | { |
367 | 5d8a4f8f | Richard Henderson | int rex;
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368 | 5d8a4f8f | Richard Henderson | |
369 | 44b37ace | Richard Henderson | if (opc & P_GS) {
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370 | 44b37ace | Richard Henderson | tcg_out8(s, 0x65);
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371 | 44b37ace | Richard Henderson | } |
372 | 5d8a4f8f | Richard Henderson | if (opc & P_DATA16) {
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373 | 5d8a4f8f | Richard Henderson | /* We should never be asking for both 16 and 64-bit operation. */
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374 | 5d8a4f8f | Richard Henderson | assert((opc & P_REXW) == 0);
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375 | 5d8a4f8f | Richard Henderson | tcg_out8(s, 0x66);
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376 | 5d8a4f8f | Richard Henderson | } |
377 | 5d8a4f8f | Richard Henderson | if (opc & P_ADDR32) {
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378 | 5d8a4f8f | Richard Henderson | tcg_out8(s, 0x67);
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379 | 5d8a4f8f | Richard Henderson | } |
380 | 5d8a4f8f | Richard Henderson | |
381 | 5d8a4f8f | Richard Henderson | rex = 0;
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382 | 5d8a4f8f | Richard Henderson | rex |= (opc & P_REXW) >> 8; /* REX.W */ |
383 | 5d8a4f8f | Richard Henderson | rex |= (r & 8) >> 1; /* REX.R */ |
384 | 5d8a4f8f | Richard Henderson | rex |= (x & 8) >> 2; /* REX.X */ |
385 | 5d8a4f8f | Richard Henderson | rex |= (rm & 8) >> 3; /* REX.B */ |
386 | 5d8a4f8f | Richard Henderson | |
387 | 5d8a4f8f | Richard Henderson | /* P_REXB_{R,RM} indicates that the given register is the low byte.
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388 | 5d8a4f8f | Richard Henderson | For %[abcd]l we need no REX prefix, but for %{si,di,bp,sp}l we do,
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389 | 5d8a4f8f | Richard Henderson | as otherwise the encoding indicates %[abcd]h. Note that the values
|
390 | 5d8a4f8f | Richard Henderson | that are ORed in merely indicate that the REX byte must be present;
|
391 | 5d8a4f8f | Richard Henderson | those bits get discarded in output. */
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392 | 5d8a4f8f | Richard Henderson | rex |= opc & (r >= 4 ? P_REXB_R : 0); |
393 | 5d8a4f8f | Richard Henderson | rex |= opc & (rm >= 4 ? P_REXB_RM : 0); |
394 | 5d8a4f8f | Richard Henderson | |
395 | 5d8a4f8f | Richard Henderson | if (rex) {
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396 | 5d8a4f8f | Richard Henderson | tcg_out8(s, (uint8_t)(rex | 0x40));
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397 | 5d8a4f8f | Richard Henderson | } |
398 | 5d8a4f8f | Richard Henderson | |
399 | 5d8a4f8f | Richard Henderson | if (opc & P_EXT) {
|
400 | 5d8a4f8f | Richard Henderson | tcg_out8(s, 0x0f);
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401 | 5d8a4f8f | Richard Henderson | } |
402 | 5d8a4f8f | Richard Henderson | tcg_out8(s, opc); |
403 | 5d8a4f8f | Richard Henderson | } |
404 | 5d8a4f8f | Richard Henderson | #else
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405 | 5d8a4f8f | Richard Henderson | static void tcg_out_opc(TCGContext *s, int opc) |
406 | c896fe29 | bellard | { |
407 | 96b4cf38 | Richard Henderson | if (opc & P_DATA16) {
|
408 | 96b4cf38 | Richard Henderson | tcg_out8(s, 0x66);
|
409 | 96b4cf38 | Richard Henderson | } |
410 | 96b4cf38 | Richard Henderson | if (opc & P_EXT) {
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411 | c896fe29 | bellard | tcg_out8(s, 0x0f);
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412 | 96b4cf38 | Richard Henderson | } |
413 | c896fe29 | bellard | tcg_out8(s, opc); |
414 | c896fe29 | bellard | } |
415 | 5d8a4f8f | Richard Henderson | /* Discard the register arguments to tcg_out_opc early, so as not to penalize
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416 | 5d8a4f8f | Richard Henderson | the 32-bit compilation paths. This method works with all versions of gcc,
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417 | 5d8a4f8f | Richard Henderson | whereas relying on optimization may not be able to exclude them. */
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418 | 5d8a4f8f | Richard Henderson | #define tcg_out_opc(s, opc, r, rm, x) (tcg_out_opc)(s, opc)
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419 | 5d8a4f8f | Richard Henderson | #endif
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420 | c896fe29 | bellard | |
421 | 5d8a4f8f | Richard Henderson | static void tcg_out_modrm(TCGContext *s, int opc, int r, int rm) |
422 | c896fe29 | bellard | { |
423 | 5d8a4f8f | Richard Henderson | tcg_out_opc(s, opc, r, rm, 0);
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424 | 5d8a4f8f | Richard Henderson | tcg_out8(s, 0xc0 | (LOWREGMASK(r) << 3) | LOWREGMASK(rm)); |
425 | c896fe29 | bellard | } |
426 | c896fe29 | bellard | |
427 | 34a6d0b7 | Richard Henderson | /* Output an opcode with a full "rm + (index<<shift) + offset" address mode.
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428 | 5d8a4f8f | Richard Henderson | We handle either RM and INDEX missing with a negative value. In 64-bit
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429 | 5d8a4f8f | Richard Henderson | mode for absolute addresses, ~RM is the size of the immediate operand
|
430 | 5d8a4f8f | Richard Henderson | that will follow the instruction. */
|
431 | 34a6d0b7 | Richard Henderson | |
432 | 34a6d0b7 | Richard Henderson | static void tcg_out_modrm_sib_offset(TCGContext *s, int opc, int r, int rm, |
433 | 5d8a4f8f | Richard Henderson | int index, int shift, |
434 | 5d8a4f8f | Richard Henderson | tcg_target_long offset) |
435 | c896fe29 | bellard | { |
436 | 34a6d0b7 | Richard Henderson | int mod, len;
|
437 | 34a6d0b7 | Richard Henderson | |
438 | 5d8a4f8f | Richard Henderson | if (index < 0 && rm < 0) { |
439 | 5d8a4f8f | Richard Henderson | if (TCG_TARGET_REG_BITS == 64) { |
440 | 5d8a4f8f | Richard Henderson | /* Try for a rip-relative addressing mode. This has replaced
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441 | 5d8a4f8f | Richard Henderson | the 32-bit-mode absolute addressing encoding. */
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442 | 5d8a4f8f | Richard Henderson | tcg_target_long pc = (tcg_target_long)s->code_ptr + 5 + ~rm;
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443 | 5d8a4f8f | Richard Henderson | tcg_target_long disp = offset - pc; |
444 | 5d8a4f8f | Richard Henderson | if (disp == (int32_t)disp) {
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445 | 5d8a4f8f | Richard Henderson | tcg_out_opc(s, opc, r, 0, 0); |
446 | 5d8a4f8f | Richard Henderson | tcg_out8(s, (LOWREGMASK(r) << 3) | 5); |
447 | 5d8a4f8f | Richard Henderson | tcg_out32(s, disp); |
448 | 5d8a4f8f | Richard Henderson | return;
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449 | 5d8a4f8f | Richard Henderson | } |
450 | 34a6d0b7 | Richard Henderson | |
451 | 5d8a4f8f | Richard Henderson | /* Try for an absolute address encoding. This requires the
|
452 | 5d8a4f8f | Richard Henderson | use of the MODRM+SIB encoding and is therefore larger than
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453 | 5d8a4f8f | Richard Henderson | rip-relative addressing. */
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454 | 5d8a4f8f | Richard Henderson | if (offset == (int32_t)offset) {
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455 | 5d8a4f8f | Richard Henderson | tcg_out_opc(s, opc, r, 0, 0); |
456 | 5d8a4f8f | Richard Henderson | tcg_out8(s, (LOWREGMASK(r) << 3) | 4); |
457 | 5d8a4f8f | Richard Henderson | tcg_out8(s, (4 << 3) | 5); |
458 | 5d8a4f8f | Richard Henderson | tcg_out32(s, offset); |
459 | 5d8a4f8f | Richard Henderson | return;
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460 | 5d8a4f8f | Richard Henderson | } |
461 | 5d8a4f8f | Richard Henderson | |
462 | 5d8a4f8f | Richard Henderson | /* ??? The memory isn't directly addressable. */
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463 | 5d8a4f8f | Richard Henderson | tcg_abort(); |
464 | 5d8a4f8f | Richard Henderson | } else {
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465 | 5d8a4f8f | Richard Henderson | /* Absolute address. */
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466 | 5d8a4f8f | Richard Henderson | tcg_out_opc(s, opc, r, 0, 0); |
467 | 5d8a4f8f | Richard Henderson | tcg_out8(s, (r << 3) | 5); |
468 | 5d8a4f8f | Richard Henderson | tcg_out32(s, offset); |
469 | 5d8a4f8f | Richard Henderson | return;
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470 | 5d8a4f8f | Richard Henderson | } |
471 | 5d8a4f8f | Richard Henderson | } |
472 | 34a6d0b7 | Richard Henderson | |
473 | 34a6d0b7 | Richard Henderson | /* Find the length of the immediate addend. Note that the encoding
|
474 | 34a6d0b7 | Richard Henderson | that would be used for (%ebp) indicates absolute addressing. */
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475 | 5d8a4f8f | Richard Henderson | if (rm < 0) { |
476 | 34a6d0b7 | Richard Henderson | mod = 0, len = 4, rm = 5; |
477 | 5d8a4f8f | Richard Henderson | } else if (offset == 0 && LOWREGMASK(rm) != TCG_REG_EBP) { |
478 | 34a6d0b7 | Richard Henderson | mod = 0, len = 0; |
479 | 34a6d0b7 | Richard Henderson | } else if (offset == (int8_t)offset) { |
480 | 34a6d0b7 | Richard Henderson | mod = 0x40, len = 1; |
481 | c896fe29 | bellard | } else {
|
482 | 34a6d0b7 | Richard Henderson | mod = 0x80, len = 4; |
483 | 34a6d0b7 | Richard Henderson | } |
484 | 34a6d0b7 | Richard Henderson | |
485 | 34a6d0b7 | Richard Henderson | /* Use a single byte MODRM format if possible. Note that the encoding
|
486 | 34a6d0b7 | Richard Henderson | that would be used for %esp is the escape to the two byte form. */
|
487 | 5d8a4f8f | Richard Henderson | if (index < 0 && LOWREGMASK(rm) != TCG_REG_ESP) { |
488 | 34a6d0b7 | Richard Henderson | /* Single byte MODRM format. */
|
489 | 5d8a4f8f | Richard Henderson | tcg_out_opc(s, opc, r, rm, 0);
|
490 | 5d8a4f8f | Richard Henderson | tcg_out8(s, mod | (LOWREGMASK(r) << 3) | LOWREGMASK(rm));
|
491 | 34a6d0b7 | Richard Henderson | } else {
|
492 | 34a6d0b7 | Richard Henderson | /* Two byte MODRM+SIB format. */
|
493 | 34a6d0b7 | Richard Henderson | |
494 | 34a6d0b7 | Richard Henderson | /* Note that the encoding that would place %esp into the index
|
495 | 5d8a4f8f | Richard Henderson | field indicates no index register. In 64-bit mode, the REX.X
|
496 | 5d8a4f8f | Richard Henderson | bit counts, so %r12 can be used as the index. */
|
497 | 5d8a4f8f | Richard Henderson | if (index < 0) { |
498 | 34a6d0b7 | Richard Henderson | index = 4;
|
499 | c896fe29 | bellard | } else {
|
500 | 34a6d0b7 | Richard Henderson | assert(index != TCG_REG_ESP); |
501 | c896fe29 | bellard | } |
502 | 34a6d0b7 | Richard Henderson | |
503 | 5d8a4f8f | Richard Henderson | tcg_out_opc(s, opc, r, rm, index); |
504 | 5d8a4f8f | Richard Henderson | tcg_out8(s, mod | (LOWREGMASK(r) << 3) | 4); |
505 | 5d8a4f8f | Richard Henderson | tcg_out8(s, (shift << 6) | (LOWREGMASK(index) << 3) | LOWREGMASK(rm)); |
506 | 34a6d0b7 | Richard Henderson | } |
507 | 34a6d0b7 | Richard Henderson | |
508 | 34a6d0b7 | Richard Henderson | if (len == 1) { |
509 | 34a6d0b7 | Richard Henderson | tcg_out8(s, offset); |
510 | 34a6d0b7 | Richard Henderson | } else if (len == 4) { |
511 | c896fe29 | bellard | tcg_out32(s, offset); |
512 | c896fe29 | bellard | } |
513 | c896fe29 | bellard | } |
514 | c896fe29 | bellard | |
515 | 5d8a4f8f | Richard Henderson | /* A simplification of the above with no index or shift. */
|
516 | 5d8a4f8f | Richard Henderson | static inline void tcg_out_modrm_offset(TCGContext *s, int opc, int r, |
517 | 5d8a4f8f | Richard Henderson | int rm, tcg_target_long offset)
|
518 | 34a6d0b7 | Richard Henderson | { |
519 | 34a6d0b7 | Richard Henderson | tcg_out_modrm_sib_offset(s, opc, r, rm, -1, 0, offset); |
520 | 34a6d0b7 | Richard Henderson | } |
521 | 34a6d0b7 | Richard Henderson | |
522 | 81570a70 | Richard Henderson | /* Generate dest op= src. Uses the same ARITH_* codes as tgen_arithi. */
|
523 | 81570a70 | Richard Henderson | static inline void tgen_arithr(TCGContext *s, int subop, int dest, int src) |
524 | 81570a70 | Richard Henderson | { |
525 | 5d8a4f8f | Richard Henderson | /* Propagate an opcode prefix, such as P_REXW. */
|
526 | 5d8a4f8f | Richard Henderson | int ext = subop & ~0x7; |
527 | 5d8a4f8f | Richard Henderson | subop &= 0x7;
|
528 | 5d8a4f8f | Richard Henderson | |
529 | 5d8a4f8f | Richard Henderson | tcg_out_modrm(s, OPC_ARITH_GvEv + (subop << 3) + ext, dest, src);
|
530 | 81570a70 | Richard Henderson | } |
531 | 81570a70 | Richard Henderson | |
532 | 2a534aff | Richard Henderson | static inline void tcg_out_mov(TCGContext *s, TCGType type, |
533 | 2a534aff | Richard Henderson | TCGReg ret, TCGReg arg) |
534 | c896fe29 | bellard | { |
535 | af266089 | Richard Henderson | if (arg != ret) {
|
536 | 5d8a4f8f | Richard Henderson | int opc = OPC_MOVL_GvEv + (type == TCG_TYPE_I64 ? P_REXW : 0); |
537 | 5d8a4f8f | Richard Henderson | tcg_out_modrm(s, opc, ret, arg); |
538 | af266089 | Richard Henderson | } |
539 | c896fe29 | bellard | } |
540 | c896fe29 | bellard | |
541 | 5d8a4f8f | Richard Henderson | static void tcg_out_movi(TCGContext *s, TCGType type, |
542 | 2a534aff | Richard Henderson | TCGReg ret, tcg_target_long arg) |
543 | c896fe29 | bellard | { |
544 | c896fe29 | bellard | if (arg == 0) { |
545 | 81570a70 | Richard Henderson | tgen_arithr(s, ARITH_XOR, ret, ret); |
546 | 5d8a4f8f | Richard Henderson | return;
|
547 | 5d8a4f8f | Richard Henderson | } else if (arg == (uint32_t)arg || type == TCG_TYPE_I32) { |
548 | 5d8a4f8f | Richard Henderson | tcg_out_opc(s, OPC_MOVL_Iv + LOWREGMASK(ret), 0, ret, 0); |
549 | 5d8a4f8f | Richard Henderson | tcg_out32(s, arg); |
550 | 5d8a4f8f | Richard Henderson | } else if (arg == (int32_t)arg) { |
551 | 5d8a4f8f | Richard Henderson | tcg_out_modrm(s, OPC_MOVL_EvIz + P_REXW, 0, ret);
|
552 | 5d8a4f8f | Richard Henderson | tcg_out32(s, arg); |
553 | c896fe29 | bellard | } else {
|
554 | 5d8a4f8f | Richard Henderson | tcg_out_opc(s, OPC_MOVL_Iv + P_REXW + LOWREGMASK(ret), 0, ret, 0); |
555 | c896fe29 | bellard | tcg_out32(s, arg); |
556 | 5d8a4f8f | Richard Henderson | tcg_out32(s, arg >> 31 >> 1); |
557 | c896fe29 | bellard | } |
558 | c896fe29 | bellard | } |
559 | c896fe29 | bellard | |
560 | 6858614e | Richard Henderson | static inline void tcg_out_pushi(TCGContext *s, tcg_target_long val) |
561 | 6858614e | Richard Henderson | { |
562 | 6858614e | Richard Henderson | if (val == (int8_t)val) {
|
563 | 5d8a4f8f | Richard Henderson | tcg_out_opc(s, OPC_PUSH_Ib, 0, 0, 0); |
564 | 6858614e | Richard Henderson | tcg_out8(s, val); |
565 | 5d8a4f8f | Richard Henderson | } else if (val == (int32_t)val) { |
566 | 5d8a4f8f | Richard Henderson | tcg_out_opc(s, OPC_PUSH_Iv, 0, 0, 0); |
567 | 6858614e | Richard Henderson | tcg_out32(s, val); |
568 | 5d8a4f8f | Richard Henderson | } else {
|
569 | 5d8a4f8f | Richard Henderson | tcg_abort(); |
570 | 6858614e | Richard Henderson | } |
571 | 6858614e | Richard Henderson | } |
572 | 6858614e | Richard Henderson | |
573 | 6858614e | Richard Henderson | static inline void tcg_out_push(TCGContext *s, int reg) |
574 | 6858614e | Richard Henderson | { |
575 | 5d8a4f8f | Richard Henderson | tcg_out_opc(s, OPC_PUSH_r32 + LOWREGMASK(reg), 0, reg, 0); |
576 | 6858614e | Richard Henderson | } |
577 | 6858614e | Richard Henderson | |
578 | 6858614e | Richard Henderson | static inline void tcg_out_pop(TCGContext *s, int reg) |
579 | 6858614e | Richard Henderson | { |
580 | 5d8a4f8f | Richard Henderson | tcg_out_opc(s, OPC_POP_r32 + LOWREGMASK(reg), 0, reg, 0); |
581 | 6858614e | Richard Henderson | } |
582 | 6858614e | Richard Henderson | |
583 | 2a534aff | Richard Henderson | static inline void tcg_out_ld(TCGContext *s, TCGType type, TCGReg ret, |
584 | 2a534aff | Richard Henderson | TCGReg arg1, tcg_target_long arg2) |
585 | c896fe29 | bellard | { |
586 | 5d8a4f8f | Richard Henderson | int opc = OPC_MOVL_GvEv + (type == TCG_TYPE_I64 ? P_REXW : 0); |
587 | 5d8a4f8f | Richard Henderson | tcg_out_modrm_offset(s, opc, ret, arg1, arg2); |
588 | c896fe29 | bellard | } |
589 | c896fe29 | bellard | |
590 | 2a534aff | Richard Henderson | static inline void tcg_out_st(TCGContext *s, TCGType type, TCGReg arg, |
591 | 2a534aff | Richard Henderson | TCGReg arg1, tcg_target_long arg2) |
592 | c896fe29 | bellard | { |
593 | 5d8a4f8f | Richard Henderson | int opc = OPC_MOVL_EvGv + (type == TCG_TYPE_I64 ? P_REXW : 0); |
594 | 5d8a4f8f | Richard Henderson | tcg_out_modrm_offset(s, opc, arg, arg1, arg2); |
595 | c896fe29 | bellard | } |
596 | c896fe29 | bellard | |
597 | f53dba01 | Richard Henderson | static void tcg_out_shifti(TCGContext *s, int subopc, int reg, int count) |
598 | f53dba01 | Richard Henderson | { |
599 | 96b4cf38 | Richard Henderson | /* Propagate an opcode prefix, such as P_DATA16. */
|
600 | 96b4cf38 | Richard Henderson | int ext = subopc & ~0x7; |
601 | 96b4cf38 | Richard Henderson | subopc &= 0x7;
|
602 | 96b4cf38 | Richard Henderson | |
603 | f53dba01 | Richard Henderson | if (count == 1) { |
604 | 5d8a4f8f | Richard Henderson | tcg_out_modrm(s, OPC_SHIFT_1 + ext, subopc, reg); |
605 | f53dba01 | Richard Henderson | } else {
|
606 | 5d8a4f8f | Richard Henderson | tcg_out_modrm(s, OPC_SHIFT_Ib + ext, subopc, reg); |
607 | f53dba01 | Richard Henderson | tcg_out8(s, count); |
608 | f53dba01 | Richard Henderson | } |
609 | f53dba01 | Richard Henderson | } |
610 | f53dba01 | Richard Henderson | |
611 | fcb5dac1 | Richard Henderson | static inline void tcg_out_bswap32(TCGContext *s, int reg) |
612 | fcb5dac1 | Richard Henderson | { |
613 | 5d8a4f8f | Richard Henderson | tcg_out_opc(s, OPC_BSWAP + LOWREGMASK(reg), 0, reg, 0); |
614 | fcb5dac1 | Richard Henderson | } |
615 | fcb5dac1 | Richard Henderson | |
616 | fcb5dac1 | Richard Henderson | static inline void tcg_out_rolw_8(TCGContext *s, int reg) |
617 | fcb5dac1 | Richard Henderson | { |
618 | 5d8a4f8f | Richard Henderson | tcg_out_shifti(s, SHIFT_ROL + P_DATA16, reg, 8);
|
619 | fcb5dac1 | Richard Henderson | } |
620 | fcb5dac1 | Richard Henderson | |
621 | 55e082a7 | Richard Henderson | static inline void tcg_out_ext8u(TCGContext *s, int dest, int src) |
622 | 55e082a7 | Richard Henderson | { |
623 | 55e082a7 | Richard Henderson | /* movzbl */
|
624 | 5d8a4f8f | Richard Henderson | assert(src < 4 || TCG_TARGET_REG_BITS == 64); |
625 | 5d8a4f8f | Richard Henderson | tcg_out_modrm(s, OPC_MOVZBL + P_REXB_RM, dest, src); |
626 | 55e082a7 | Richard Henderson | } |
627 | 55e082a7 | Richard Henderson | |
628 | 5d8a4f8f | Richard Henderson | static void tcg_out_ext8s(TCGContext *s, int dest, int src, int rexw) |
629 | 6817c355 | Richard Henderson | { |
630 | 6817c355 | Richard Henderson | /* movsbl */
|
631 | 5d8a4f8f | Richard Henderson | assert(src < 4 || TCG_TARGET_REG_BITS == 64); |
632 | 5d8a4f8f | Richard Henderson | tcg_out_modrm(s, OPC_MOVSBL + P_REXB_RM + rexw, dest, src); |
633 | 6817c355 | Richard Henderson | } |
634 | 6817c355 | Richard Henderson | |
635 | 55e082a7 | Richard Henderson | static inline void tcg_out_ext16u(TCGContext *s, int dest, int src) |
636 | 55e082a7 | Richard Henderson | { |
637 | 55e082a7 | Richard Henderson | /* movzwl */
|
638 | 55e082a7 | Richard Henderson | tcg_out_modrm(s, OPC_MOVZWL, dest, src); |
639 | 55e082a7 | Richard Henderson | } |
640 | 55e082a7 | Richard Henderson | |
641 | 5d8a4f8f | Richard Henderson | static inline void tcg_out_ext16s(TCGContext *s, int dest, int src, int rexw) |
642 | 6817c355 | Richard Henderson | { |
643 | 5d8a4f8f | Richard Henderson | /* movsw[lq] */
|
644 | 5d8a4f8f | Richard Henderson | tcg_out_modrm(s, OPC_MOVSWL + rexw, dest, src); |
645 | 6817c355 | Richard Henderson | } |
646 | 6817c355 | Richard Henderson | |
647 | 5d8a4f8f | Richard Henderson | static inline void tcg_out_ext32u(TCGContext *s, int dest, int src) |
648 | c896fe29 | bellard | { |
649 | 5d8a4f8f | Richard Henderson | /* 32-bit mov zero extends. */
|
650 | 5d8a4f8f | Richard Henderson | tcg_out_modrm(s, OPC_MOVL_GvEv, dest, src); |
651 | 5d8a4f8f | Richard Henderson | } |
652 | 5d8a4f8f | Richard Henderson | |
653 | 5d8a4f8f | Richard Henderson | static inline void tcg_out_ext32s(TCGContext *s, int dest, int src) |
654 | 5d8a4f8f | Richard Henderson | { |
655 | 5d8a4f8f | Richard Henderson | tcg_out_modrm(s, OPC_MOVSLQ, dest, src); |
656 | 5d8a4f8f | Richard Henderson | } |
657 | 5d8a4f8f | Richard Henderson | |
658 | 5d8a4f8f | Richard Henderson | static inline void tcg_out_bswap64(TCGContext *s, int reg) |
659 | 5d8a4f8f | Richard Henderson | { |
660 | 5d8a4f8f | Richard Henderson | tcg_out_opc(s, OPC_BSWAP + P_REXW + LOWREGMASK(reg), 0, reg, 0); |
661 | 5d8a4f8f | Richard Henderson | } |
662 | 5d8a4f8f | Richard Henderson | |
663 | 5d8a4f8f | Richard Henderson | static void tgen_arithi(TCGContext *s, int c, int r0, |
664 | 5d8a4f8f | Richard Henderson | tcg_target_long val, int cf)
|
665 | 5d8a4f8f | Richard Henderson | { |
666 | 5d8a4f8f | Richard Henderson | int rexw = 0; |
667 | 5d8a4f8f | Richard Henderson | |
668 | 5d8a4f8f | Richard Henderson | if (TCG_TARGET_REG_BITS == 64) { |
669 | 5d8a4f8f | Richard Henderson | rexw = c & -8;
|
670 | 5d8a4f8f | Richard Henderson | c &= 7;
|
671 | 5d8a4f8f | Richard Henderson | } |
672 | 5d8a4f8f | Richard Henderson | |
673 | 81570a70 | Richard Henderson | /* ??? While INC is 2 bytes shorter than ADDL $1, they also induce
|
674 | 81570a70 | Richard Henderson | partial flags update stalls on Pentium4 and are not recommended
|
675 | 81570a70 | Richard Henderson | by current Intel optimization manuals. */
|
676 | 81570a70 | Richard Henderson | if (!cf && (c == ARITH_ADD || c == ARITH_SUB) && (val == 1 || val == -1)) { |
677 | 447d681e | Aurelien Jarno | int is_inc = (c == ARITH_ADD) ^ (val < 0); |
678 | 5d8a4f8f | Richard Henderson | if (TCG_TARGET_REG_BITS == 64) { |
679 | 5d8a4f8f | Richard Henderson | /* The single-byte increment encodings are re-tasked as the
|
680 | 5d8a4f8f | Richard Henderson | REX prefixes. Use the MODRM encoding. */
|
681 | 5d8a4f8f | Richard Henderson | tcg_out_modrm(s, OPC_GRP5 + rexw, |
682 | 5d8a4f8f | Richard Henderson | (is_inc ? EXT5_INC_Ev : EXT5_DEC_Ev), r0); |
683 | 5d8a4f8f | Richard Henderson | } else {
|
684 | 5d8a4f8f | Richard Henderson | tcg_out8(s, (is_inc ? OPC_INC_r32 : OPC_DEC_r32) + r0); |
685 | 5d8a4f8f | Richard Henderson | } |
686 | 5d8a4f8f | Richard Henderson | return;
|
687 | 5d8a4f8f | Richard Henderson | } |
688 | 5d8a4f8f | Richard Henderson | |
689 | 5d8a4f8f | Richard Henderson | if (c == ARITH_AND) {
|
690 | 5d8a4f8f | Richard Henderson | if (TCG_TARGET_REG_BITS == 64) { |
691 | 5d8a4f8f | Richard Henderson | if (val == 0xffffffffu) { |
692 | 5d8a4f8f | Richard Henderson | tcg_out_ext32u(s, r0, r0); |
693 | 5d8a4f8f | Richard Henderson | return;
|
694 | 5d8a4f8f | Richard Henderson | } |
695 | 5d8a4f8f | Richard Henderson | if (val == (uint32_t)val) {
|
696 | 5d8a4f8f | Richard Henderson | /* AND with no high bits set can use a 32-bit operation. */
|
697 | 5d8a4f8f | Richard Henderson | rexw = 0;
|
698 | 5d8a4f8f | Richard Henderson | } |
699 | 5d8a4f8f | Richard Henderson | } |
700 | dc397ca3 | Aurelien Jarno | if (val == 0xffu && (r0 < 4 || TCG_TARGET_REG_BITS == 64)) { |
701 | 5d8a4f8f | Richard Henderson | tcg_out_ext8u(s, r0, r0); |
702 | 5d8a4f8f | Richard Henderson | return;
|
703 | 5d8a4f8f | Richard Henderson | } |
704 | 5d8a4f8f | Richard Henderson | if (val == 0xffffu) { |
705 | 5d8a4f8f | Richard Henderson | tcg_out_ext16u(s, r0, r0); |
706 | 5d8a4f8f | Richard Henderson | return;
|
707 | 5d8a4f8f | Richard Henderson | } |
708 | 5d8a4f8f | Richard Henderson | } |
709 | 5d8a4f8f | Richard Henderson | |
710 | 5d8a4f8f | Richard Henderson | if (val == (int8_t)val) {
|
711 | 5d8a4f8f | Richard Henderson | tcg_out_modrm(s, OPC_ARITH_EvIb + rexw, c, r0); |
712 | c896fe29 | bellard | tcg_out8(s, val); |
713 | 5d8a4f8f | Richard Henderson | return;
|
714 | 5d8a4f8f | Richard Henderson | } |
715 | 5d8a4f8f | Richard Henderson | if (rexw == 0 || val == (int32_t)val) { |
716 | 5d8a4f8f | Richard Henderson | tcg_out_modrm(s, OPC_ARITH_EvIz + rexw, c, r0); |
717 | c896fe29 | bellard | tcg_out32(s, val); |
718 | 5d8a4f8f | Richard Henderson | return;
|
719 | c896fe29 | bellard | } |
720 | 5d8a4f8f | Richard Henderson | |
721 | 5d8a4f8f | Richard Henderson | tcg_abort(); |
722 | c896fe29 | bellard | } |
723 | c896fe29 | bellard | |
724 | 3e9a474e | aurel32 | static void tcg_out_addi(TCGContext *s, int reg, tcg_target_long val) |
725 | c896fe29 | bellard | { |
726 | 5d8a4f8f | Richard Henderson | if (val != 0) { |
727 | 5d8a4f8f | Richard Henderson | tgen_arithi(s, ARITH_ADD + P_REXW, reg, val, 0);
|
728 | 5d8a4f8f | Richard Henderson | } |
729 | c896fe29 | bellard | } |
730 | c896fe29 | bellard | |
731 | f75b56c1 | Richard Henderson | /* Use SMALL != 0 to force a short forward branch. */
|
732 | f75b56c1 | Richard Henderson | static void tcg_out_jxx(TCGContext *s, int opc, int label_index, int small) |
733 | c896fe29 | bellard | { |
734 | c896fe29 | bellard | int32_t val, val1; |
735 | c896fe29 | bellard | TCGLabel *l = &s->labels[label_index]; |
736 | 78686523 | Richard Henderson | |
737 | c896fe29 | bellard | if (l->has_value) {
|
738 | c896fe29 | bellard | val = l->u.value - (tcg_target_long)s->code_ptr; |
739 | c896fe29 | bellard | val1 = val - 2;
|
740 | c896fe29 | bellard | if ((int8_t)val1 == val1) {
|
741 | f75b56c1 | Richard Henderson | if (opc == -1) { |
742 | da441cff | Richard Henderson | tcg_out8(s, OPC_JMP_short); |
743 | f75b56c1 | Richard Henderson | } else {
|
744 | da441cff | Richard Henderson | tcg_out8(s, OPC_JCC_short + opc); |
745 | f75b56c1 | Richard Henderson | } |
746 | c896fe29 | bellard | tcg_out8(s, val1); |
747 | c896fe29 | bellard | } else {
|
748 | f75b56c1 | Richard Henderson | if (small) {
|
749 | f75b56c1 | Richard Henderson | tcg_abort(); |
750 | f75b56c1 | Richard Henderson | } |
751 | c896fe29 | bellard | if (opc == -1) { |
752 | da441cff | Richard Henderson | tcg_out8(s, OPC_JMP_long); |
753 | c896fe29 | bellard | tcg_out32(s, val - 5);
|
754 | c896fe29 | bellard | } else {
|
755 | 5d8a4f8f | Richard Henderson | tcg_out_opc(s, OPC_JCC_long + opc, 0, 0, 0); |
756 | c896fe29 | bellard | tcg_out32(s, val - 6);
|
757 | c896fe29 | bellard | } |
758 | c896fe29 | bellard | } |
759 | f75b56c1 | Richard Henderson | } else if (small) { |
760 | f75b56c1 | Richard Henderson | if (opc == -1) { |
761 | da441cff | Richard Henderson | tcg_out8(s, OPC_JMP_short); |
762 | f75b56c1 | Richard Henderson | } else {
|
763 | da441cff | Richard Henderson | tcg_out8(s, OPC_JCC_short + opc); |
764 | f75b56c1 | Richard Henderson | } |
765 | f75b56c1 | Richard Henderson | tcg_out_reloc(s, s->code_ptr, R_386_PC8, label_index, -1);
|
766 | f75b56c1 | Richard Henderson | s->code_ptr += 1;
|
767 | c896fe29 | bellard | } else {
|
768 | c896fe29 | bellard | if (opc == -1) { |
769 | da441cff | Richard Henderson | tcg_out8(s, OPC_JMP_long); |
770 | c896fe29 | bellard | } else {
|
771 | 5d8a4f8f | Richard Henderson | tcg_out_opc(s, OPC_JCC_long + opc, 0, 0, 0); |
772 | c896fe29 | bellard | } |
773 | c896fe29 | bellard | tcg_out_reloc(s, s->code_ptr, R_386_PC32, label_index, -4);
|
774 | 623e265c | pbrook | s->code_ptr += 4;
|
775 | c896fe29 | bellard | } |
776 | c896fe29 | bellard | } |
777 | c896fe29 | bellard | |
778 | 1d2699ae | Richard Henderson | static void tcg_out_cmp(TCGContext *s, TCGArg arg1, TCGArg arg2, |
779 | 5d8a4f8f | Richard Henderson | int const_arg2, int rexw) |
780 | c896fe29 | bellard | { |
781 | c896fe29 | bellard | if (const_arg2) {
|
782 | c896fe29 | bellard | if (arg2 == 0) { |
783 | c896fe29 | bellard | /* test r, r */
|
784 | 5d8a4f8f | Richard Henderson | tcg_out_modrm(s, OPC_TESTL + rexw, arg1, arg1); |
785 | c896fe29 | bellard | } else {
|
786 | 5d8a4f8f | Richard Henderson | tgen_arithi(s, ARITH_CMP + rexw, arg1, arg2, 0);
|
787 | c896fe29 | bellard | } |
788 | c896fe29 | bellard | } else {
|
789 | 5d8a4f8f | Richard Henderson | tgen_arithr(s, ARITH_CMP + rexw, arg1, arg2); |
790 | c896fe29 | bellard | } |
791 | 1d2699ae | Richard Henderson | } |
792 | 1d2699ae | Richard Henderson | |
793 | 5d8a4f8f | Richard Henderson | static void tcg_out_brcond32(TCGContext *s, TCGCond cond, |
794 | 5d8a4f8f | Richard Henderson | TCGArg arg1, TCGArg arg2, int const_arg2,
|
795 | 5d8a4f8f | Richard Henderson | int label_index, int small) |
796 | 1d2699ae | Richard Henderson | { |
797 | 5d8a4f8f | Richard Henderson | tcg_out_cmp(s, arg1, arg2, const_arg2, 0);
|
798 | f75b56c1 | Richard Henderson | tcg_out_jxx(s, tcg_cond_to_jcc[cond], label_index, small); |
799 | c896fe29 | bellard | } |
800 | c896fe29 | bellard | |
801 | 5d8a4f8f | Richard Henderson | #if TCG_TARGET_REG_BITS == 64 |
802 | 5d8a4f8f | Richard Henderson | static void tcg_out_brcond64(TCGContext *s, TCGCond cond, |
803 | 5d8a4f8f | Richard Henderson | TCGArg arg1, TCGArg arg2, int const_arg2,
|
804 | 5d8a4f8f | Richard Henderson | int label_index, int small) |
805 | 5d8a4f8f | Richard Henderson | { |
806 | 5d8a4f8f | Richard Henderson | tcg_out_cmp(s, arg1, arg2, const_arg2, P_REXW); |
807 | 5d8a4f8f | Richard Henderson | tcg_out_jxx(s, tcg_cond_to_jcc[cond], label_index, small); |
808 | 5d8a4f8f | Richard Henderson | } |
809 | 5d8a4f8f | Richard Henderson | #else
|
810 | c896fe29 | bellard | /* XXX: we implement it at the target level to avoid having to
|
811 | c896fe29 | bellard | handle cross basic blocks temporaries */
|
812 | f75b56c1 | Richard Henderson | static void tcg_out_brcond2(TCGContext *s, const TCGArg *args, |
813 | f75b56c1 | Richard Henderson | const int *const_args, int small) |
814 | c896fe29 | bellard | { |
815 | c896fe29 | bellard | int label_next;
|
816 | c896fe29 | bellard | label_next = gen_new_label(); |
817 | c896fe29 | bellard | switch(args[4]) { |
818 | c896fe29 | bellard | case TCG_COND_EQ:
|
819 | 5d8a4f8f | Richard Henderson | tcg_out_brcond32(s, TCG_COND_NE, args[0], args[2], const_args[2], |
820 | 5d8a4f8f | Richard Henderson | label_next, 1);
|
821 | 5d8a4f8f | Richard Henderson | tcg_out_brcond32(s, TCG_COND_EQ, args[1], args[3], const_args[3], |
822 | 5d8a4f8f | Richard Henderson | args[5], small);
|
823 | c896fe29 | bellard | break;
|
824 | c896fe29 | bellard | case TCG_COND_NE:
|
825 | 5d8a4f8f | Richard Henderson | tcg_out_brcond32(s, TCG_COND_NE, args[0], args[2], const_args[2], |
826 | 5d8a4f8f | Richard Henderson | args[5], small);
|
827 | 5d8a4f8f | Richard Henderson | tcg_out_brcond32(s, TCG_COND_NE, args[1], args[3], const_args[3], |
828 | 5d8a4f8f | Richard Henderson | args[5], small);
|
829 | c896fe29 | bellard | break;
|
830 | c896fe29 | bellard | case TCG_COND_LT:
|
831 | 5d8a4f8f | Richard Henderson | tcg_out_brcond32(s, TCG_COND_LT, args[1], args[3], const_args[3], |
832 | 5d8a4f8f | Richard Henderson | args[5], small);
|
833 | f75b56c1 | Richard Henderson | tcg_out_jxx(s, JCC_JNE, label_next, 1);
|
834 | 5d8a4f8f | Richard Henderson | tcg_out_brcond32(s, TCG_COND_LTU, args[0], args[2], const_args[2], |
835 | 5d8a4f8f | Richard Henderson | args[5], small);
|
836 | c896fe29 | bellard | break;
|
837 | c896fe29 | bellard | case TCG_COND_LE:
|
838 | 5d8a4f8f | Richard Henderson | tcg_out_brcond32(s, TCG_COND_LT, args[1], args[3], const_args[3], |
839 | 5d8a4f8f | Richard Henderson | args[5], small);
|
840 | f75b56c1 | Richard Henderson | tcg_out_jxx(s, JCC_JNE, label_next, 1);
|
841 | 5d8a4f8f | Richard Henderson | tcg_out_brcond32(s, TCG_COND_LEU, args[0], args[2], const_args[2], |
842 | 5d8a4f8f | Richard Henderson | args[5], small);
|
843 | c896fe29 | bellard | break;
|
844 | c896fe29 | bellard | case TCG_COND_GT:
|
845 | 5d8a4f8f | Richard Henderson | tcg_out_brcond32(s, TCG_COND_GT, args[1], args[3], const_args[3], |
846 | 5d8a4f8f | Richard Henderson | args[5], small);
|
847 | f75b56c1 | Richard Henderson | tcg_out_jxx(s, JCC_JNE, label_next, 1);
|
848 | 5d8a4f8f | Richard Henderson | tcg_out_brcond32(s, TCG_COND_GTU, args[0], args[2], const_args[2], |
849 | 5d8a4f8f | Richard Henderson | args[5], small);
|
850 | c896fe29 | bellard | break;
|
851 | c896fe29 | bellard | case TCG_COND_GE:
|
852 | 5d8a4f8f | Richard Henderson | tcg_out_brcond32(s, TCG_COND_GT, args[1], args[3], const_args[3], |
853 | 5d8a4f8f | Richard Henderson | args[5], small);
|
854 | f75b56c1 | Richard Henderson | tcg_out_jxx(s, JCC_JNE, label_next, 1);
|
855 | 5d8a4f8f | Richard Henderson | tcg_out_brcond32(s, TCG_COND_GEU, args[0], args[2], const_args[2], |
856 | 5d8a4f8f | Richard Henderson | args[5], small);
|
857 | c896fe29 | bellard | break;
|
858 | c896fe29 | bellard | case TCG_COND_LTU:
|
859 | 5d8a4f8f | Richard Henderson | tcg_out_brcond32(s, TCG_COND_LTU, args[1], args[3], const_args[3], |
860 | 5d8a4f8f | Richard Henderson | args[5], small);
|
861 | f75b56c1 | Richard Henderson | tcg_out_jxx(s, JCC_JNE, label_next, 1);
|
862 | 5d8a4f8f | Richard Henderson | tcg_out_brcond32(s, TCG_COND_LTU, args[0], args[2], const_args[2], |
863 | 5d8a4f8f | Richard Henderson | args[5], small);
|
864 | c896fe29 | bellard | break;
|
865 | c896fe29 | bellard | case TCG_COND_LEU:
|
866 | 5d8a4f8f | Richard Henderson | tcg_out_brcond32(s, TCG_COND_LTU, args[1], args[3], const_args[3], |
867 | 5d8a4f8f | Richard Henderson | args[5], small);
|
868 | f75b56c1 | Richard Henderson | tcg_out_jxx(s, JCC_JNE, label_next, 1);
|
869 | 5d8a4f8f | Richard Henderson | tcg_out_brcond32(s, TCG_COND_LEU, args[0], args[2], const_args[2], |
870 | 5d8a4f8f | Richard Henderson | args[5], small);
|
871 | c896fe29 | bellard | break;
|
872 | c896fe29 | bellard | case TCG_COND_GTU:
|
873 | 5d8a4f8f | Richard Henderson | tcg_out_brcond32(s, TCG_COND_GTU, args[1], args[3], const_args[3], |
874 | 5d8a4f8f | Richard Henderson | args[5], small);
|
875 | f75b56c1 | Richard Henderson | tcg_out_jxx(s, JCC_JNE, label_next, 1);
|
876 | 5d8a4f8f | Richard Henderson | tcg_out_brcond32(s, TCG_COND_GTU, args[0], args[2], const_args[2], |
877 | 5d8a4f8f | Richard Henderson | args[5], small);
|
878 | c896fe29 | bellard | break;
|
879 | c896fe29 | bellard | case TCG_COND_GEU:
|
880 | 5d8a4f8f | Richard Henderson | tcg_out_brcond32(s, TCG_COND_GTU, args[1], args[3], const_args[3], |
881 | 5d8a4f8f | Richard Henderson | args[5], small);
|
882 | f75b56c1 | Richard Henderson | tcg_out_jxx(s, JCC_JNE, label_next, 1);
|
883 | 5d8a4f8f | Richard Henderson | tcg_out_brcond32(s, TCG_COND_GEU, args[0], args[2], const_args[2], |
884 | 5d8a4f8f | Richard Henderson | args[5], small);
|
885 | c896fe29 | bellard | break;
|
886 | c896fe29 | bellard | default:
|
887 | c896fe29 | bellard | tcg_abort(); |
888 | c896fe29 | bellard | } |
889 | 9d6fca70 | Stefan Weil | tcg_out_label(s, label_next, s->code_ptr); |
890 | c896fe29 | bellard | } |
891 | 5d8a4f8f | Richard Henderson | #endif
|
892 | c896fe29 | bellard | |
893 | 5d8a4f8f | Richard Henderson | static void tcg_out_setcond32(TCGContext *s, TCGCond cond, TCGArg dest, |
894 | 5d8a4f8f | Richard Henderson | TCGArg arg1, TCGArg arg2, int const_arg2)
|
895 | 1d2699ae | Richard Henderson | { |
896 | 5d8a4f8f | Richard Henderson | tcg_out_cmp(s, arg1, arg2, const_arg2, 0);
|
897 | 32a8ffb9 | Richard Henderson | tcg_out_modrm(s, OPC_SETCC | tcg_cond_to_jcc[cond], 0, dest);
|
898 | a369a702 | Richard Henderson | tcg_out_ext8u(s, dest, dest); |
899 | 1d2699ae | Richard Henderson | } |
900 | 1d2699ae | Richard Henderson | |
901 | 5d8a4f8f | Richard Henderson | #if TCG_TARGET_REG_BITS == 64 |
902 | 5d8a4f8f | Richard Henderson | static void tcg_out_setcond64(TCGContext *s, TCGCond cond, TCGArg dest, |
903 | 5d8a4f8f | Richard Henderson | TCGArg arg1, TCGArg arg2, int const_arg2)
|
904 | 5d8a4f8f | Richard Henderson | { |
905 | 5d8a4f8f | Richard Henderson | tcg_out_cmp(s, arg1, arg2, const_arg2, P_REXW); |
906 | 5d8a4f8f | Richard Henderson | tcg_out_modrm(s, OPC_SETCC | tcg_cond_to_jcc[cond], 0, dest);
|
907 | 5d8a4f8f | Richard Henderson | tcg_out_ext8u(s, dest, dest); |
908 | 5d8a4f8f | Richard Henderson | } |
909 | 5d8a4f8f | Richard Henderson | #else
|
910 | 1d2699ae | Richard Henderson | static void tcg_out_setcond2(TCGContext *s, const TCGArg *args, |
911 | 1d2699ae | Richard Henderson | const int *const_args) |
912 | 1d2699ae | Richard Henderson | { |
913 | 1d2699ae | Richard Henderson | TCGArg new_args[6];
|
914 | 1d2699ae | Richard Henderson | int label_true, label_over;
|
915 | 1d2699ae | Richard Henderson | |
916 | 1d2699ae | Richard Henderson | memcpy(new_args, args+1, 5*sizeof(TCGArg)); |
917 | 1d2699ae | Richard Henderson | |
918 | 1d2699ae | Richard Henderson | if (args[0] == args[1] || args[0] == args[2] |
919 | 1d2699ae | Richard Henderson | || (!const_args[3] && args[0] == args[3]) |
920 | 1d2699ae | Richard Henderson | || (!const_args[4] && args[0] == args[4])) { |
921 | 1d2699ae | Richard Henderson | /* When the destination overlaps with one of the argument
|
922 | 1d2699ae | Richard Henderson | registers, don't do anything tricky. */
|
923 | 1d2699ae | Richard Henderson | label_true = gen_new_label(); |
924 | 1d2699ae | Richard Henderson | label_over = gen_new_label(); |
925 | 1d2699ae | Richard Henderson | |
926 | 1d2699ae | Richard Henderson | new_args[5] = label_true;
|
927 | 1d2699ae | Richard Henderson | tcg_out_brcond2(s, new_args, const_args+1, 1); |
928 | 1d2699ae | Richard Henderson | |
929 | 1d2699ae | Richard Henderson | tcg_out_movi(s, TCG_TYPE_I32, args[0], 0); |
930 | 1d2699ae | Richard Henderson | tcg_out_jxx(s, JCC_JMP, label_over, 1);
|
931 | 9d6fca70 | Stefan Weil | tcg_out_label(s, label_true, s->code_ptr); |
932 | 1d2699ae | Richard Henderson | |
933 | 1d2699ae | Richard Henderson | tcg_out_movi(s, TCG_TYPE_I32, args[0], 1); |
934 | 9d6fca70 | Stefan Weil | tcg_out_label(s, label_over, s->code_ptr); |
935 | 1d2699ae | Richard Henderson | } else {
|
936 | 1d2699ae | Richard Henderson | /* When the destination does not overlap one of the arguments,
|
937 | 1d2699ae | Richard Henderson | clear the destination first, jump if cond false, and emit an
|
938 | 1d2699ae | Richard Henderson | increment in the true case. This results in smaller code. */
|
939 | 1d2699ae | Richard Henderson | |
940 | 1d2699ae | Richard Henderson | tcg_out_movi(s, TCG_TYPE_I32, args[0], 0); |
941 | 1d2699ae | Richard Henderson | |
942 | 1d2699ae | Richard Henderson | label_over = gen_new_label(); |
943 | 1d2699ae | Richard Henderson | new_args[4] = tcg_invert_cond(new_args[4]); |
944 | 1d2699ae | Richard Henderson | new_args[5] = label_over;
|
945 | 1d2699ae | Richard Henderson | tcg_out_brcond2(s, new_args, const_args+1, 1); |
946 | 1d2699ae | Richard Henderson | |
947 | 1d2699ae | Richard Henderson | tgen_arithi(s, ARITH_ADD, args[0], 1, 0); |
948 | 9d6fca70 | Stefan Weil | tcg_out_label(s, label_over, s->code_ptr); |
949 | 1d2699ae | Richard Henderson | } |
950 | 1d2699ae | Richard Henderson | } |
951 | 5d8a4f8f | Richard Henderson | #endif
|
952 | 5d8a4f8f | Richard Henderson | |
953 | d0a16297 | Richard Henderson | static void tcg_out_movcond32(TCGContext *s, TCGCond cond, TCGArg dest, |
954 | d0a16297 | Richard Henderson | TCGArg c1, TCGArg c2, int const_c2,
|
955 | d0a16297 | Richard Henderson | TCGArg v1) |
956 | d0a16297 | Richard Henderson | { |
957 | d0a16297 | Richard Henderson | tcg_out_cmp(s, c1, c2, const_c2, 0);
|
958 | 76a347e1 | Richard Henderson | if (have_cmov) {
|
959 | 76a347e1 | Richard Henderson | tcg_out_modrm(s, OPC_CMOVCC | tcg_cond_to_jcc[cond], dest, v1); |
960 | 76a347e1 | Richard Henderson | } else {
|
961 | 76a347e1 | Richard Henderson | int over = gen_new_label();
|
962 | 76a347e1 | Richard Henderson | tcg_out_jxx(s, tcg_cond_to_jcc[tcg_invert_cond(cond)], over, 1);
|
963 | 76a347e1 | Richard Henderson | tcg_out_mov(s, TCG_TYPE_I32, dest, v1); |
964 | 76a347e1 | Richard Henderson | tcg_out_label(s, over, s->code_ptr); |
965 | 76a347e1 | Richard Henderson | } |
966 | d0a16297 | Richard Henderson | } |
967 | d0a16297 | Richard Henderson | |
968 | d0a16297 | Richard Henderson | #if TCG_TARGET_REG_BITS == 64 |
969 | d0a16297 | Richard Henderson | static void tcg_out_movcond64(TCGContext *s, TCGCond cond, TCGArg dest, |
970 | d0a16297 | Richard Henderson | TCGArg c1, TCGArg c2, int const_c2,
|
971 | d0a16297 | Richard Henderson | TCGArg v1) |
972 | d0a16297 | Richard Henderson | { |
973 | d0a16297 | Richard Henderson | tcg_out_cmp(s, c1, c2, const_c2, P_REXW); |
974 | d0a16297 | Richard Henderson | tcg_out_modrm(s, OPC_CMOVCC | tcg_cond_to_jcc[cond] | P_REXW, dest, v1); |
975 | d0a16297 | Richard Henderson | } |
976 | d0a16297 | Richard Henderson | #endif
|
977 | d0a16297 | Richard Henderson | |
978 | 5d8a4f8f | Richard Henderson | static void tcg_out_branch(TCGContext *s, int call, tcg_target_long dest) |
979 | 5d8a4f8f | Richard Henderson | { |
980 | 5d8a4f8f | Richard Henderson | tcg_target_long disp = dest - (tcg_target_long)s->code_ptr - 5;
|
981 | 5d8a4f8f | Richard Henderson | |
982 | 5d8a4f8f | Richard Henderson | if (disp == (int32_t)disp) {
|
983 | 5d8a4f8f | Richard Henderson | tcg_out_opc(s, call ? OPC_CALL_Jz : OPC_JMP_long, 0, 0, 0); |
984 | 5d8a4f8f | Richard Henderson | tcg_out32(s, disp); |
985 | 5d8a4f8f | Richard Henderson | } else {
|
986 | 5d8a4f8f | Richard Henderson | tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R10, dest); |
987 | 5d8a4f8f | Richard Henderson | tcg_out_modrm(s, OPC_GRP5, |
988 | 5d8a4f8f | Richard Henderson | call ? EXT5_CALLN_Ev : EXT5_JMPN_Ev, TCG_REG_R10); |
989 | 5d8a4f8f | Richard Henderson | } |
990 | 5d8a4f8f | Richard Henderson | } |
991 | 5d8a4f8f | Richard Henderson | |
992 | 5d8a4f8f | Richard Henderson | static inline void tcg_out_calli(TCGContext *s, tcg_target_long dest) |
993 | 5d8a4f8f | Richard Henderson | { |
994 | 5d8a4f8f | Richard Henderson | tcg_out_branch(s, 1, dest);
|
995 | 5d8a4f8f | Richard Henderson | } |
996 | 1d2699ae | Richard Henderson | |
997 | 5d8a4f8f | Richard Henderson | static void tcg_out_jmp(TCGContext *s, tcg_target_long dest) |
998 | aadb21a4 | Richard Henderson | { |
999 | 5d8a4f8f | Richard Henderson | tcg_out_branch(s, 0, dest);
|
1000 | aadb21a4 | Richard Henderson | } |
1001 | aadb21a4 | Richard Henderson | |
1002 | c896fe29 | bellard | #if defined(CONFIG_SOFTMMU)
|
1003 | 79383c9c | blueswir1 | |
1004 | 022c62cb | Paolo Bonzini | #include "exec/softmmu_defs.h" |
1005 | c896fe29 | bellard | |
1006 | e141ab52 | Blue Swirl | /* helper signature: helper_ld_mmu(CPUState *env, target_ulong addr,
|
1007 | e141ab52 | Blue Swirl | int mmu_idx) */
|
1008 | e141ab52 | Blue Swirl | static const void *qemu_ld_helpers[4] = { |
1009 | e141ab52 | Blue Swirl | helper_ldb_mmu, |
1010 | e141ab52 | Blue Swirl | helper_ldw_mmu, |
1011 | e141ab52 | Blue Swirl | helper_ldl_mmu, |
1012 | e141ab52 | Blue Swirl | helper_ldq_mmu, |
1013 | e141ab52 | Blue Swirl | }; |
1014 | e141ab52 | Blue Swirl | |
1015 | e141ab52 | Blue Swirl | /* helper signature: helper_st_mmu(CPUState *env, target_ulong addr,
|
1016 | e141ab52 | Blue Swirl | uintxx_t val, int mmu_idx) */
|
1017 | e141ab52 | Blue Swirl | static const void *qemu_st_helpers[4] = { |
1018 | e141ab52 | Blue Swirl | helper_stb_mmu, |
1019 | e141ab52 | Blue Swirl | helper_stw_mmu, |
1020 | e141ab52 | Blue Swirl | helper_stl_mmu, |
1021 | e141ab52 | Blue Swirl | helper_stq_mmu, |
1022 | e141ab52 | Blue Swirl | }; |
1023 | 8516a044 | Richard Henderson | |
1024 | b76f0d8c | Yeongkyoon Lee | static void add_qemu_ldst_label(TCGContext *s, |
1025 | b76f0d8c | Yeongkyoon Lee | int is_ld,
|
1026 | b76f0d8c | Yeongkyoon Lee | int opc,
|
1027 | b76f0d8c | Yeongkyoon Lee | int data_reg,
|
1028 | b76f0d8c | Yeongkyoon Lee | int data_reg2,
|
1029 | b76f0d8c | Yeongkyoon Lee | int addrlo_reg,
|
1030 | b76f0d8c | Yeongkyoon Lee | int addrhi_reg,
|
1031 | b76f0d8c | Yeongkyoon Lee | int mem_index,
|
1032 | b76f0d8c | Yeongkyoon Lee | uint8_t *raddr, |
1033 | b76f0d8c | Yeongkyoon Lee | uint8_t **label_ptr); |
1034 | b76f0d8c | Yeongkyoon Lee | |
1035 | 8516a044 | Richard Henderson | /* Perform the TLB load and compare.
|
1036 | 8516a044 | Richard Henderson | |
1037 | 8516a044 | Richard Henderson | Inputs:
|
1038 | 8516a044 | Richard Henderson | ADDRLO_IDX contains the index into ARGS of the low part of the
|
1039 | 8516a044 | Richard Henderson | address; the high part of the address is at ADDR_LOW_IDX+1.
|
1040 | 8516a044 | Richard Henderson | |
1041 | 8516a044 | Richard Henderson | MEM_INDEX and S_BITS are the memory context and log2 size of the load.
|
1042 | 8516a044 | Richard Henderson | |
1043 | 8516a044 | Richard Henderson | WHICH is the offset into the CPUTLBEntry structure of the slot to read.
|
1044 | 8516a044 | Richard Henderson | This should be offsetof addr_read or addr_write.
|
1045 | 8516a044 | Richard Henderson | |
1046 | 8516a044 | Richard Henderson | Outputs:
|
1047 | 8516a044 | Richard Henderson | LABEL_PTRS is filled with 1 (32-bit addresses) or 2 (64-bit addresses)
|
1048 | 8516a044 | Richard Henderson | positions of the displacements of forward jumps to the TLB miss case.
|
1049 | 8516a044 | Richard Henderson | |
1050 | 166792f7 | Aurelien Jarno | Second argument register is loaded with the low part of the address.
|
1051 | 5d8a4f8f | Richard Henderson | In the TLB hit case, it has been adjusted as indicated by the TLB
|
1052 | 5d8a4f8f | Richard Henderson | and so is a host address. In the TLB miss case, it continues to
|
1053 | 5d8a4f8f | Richard Henderson | hold a guest address.
|
1054 | 8516a044 | Richard Henderson | |
1055 | 166792f7 | Aurelien Jarno | First argument register is clobbered. */
|
1056 | 8516a044 | Richard Henderson | |
1057 | c28b14c6 | Aurelien Jarno | static inline void tcg_out_tlb_load(TCGContext *s, int addrlo_idx, |
1058 | c28b14c6 | Aurelien Jarno | int mem_index, int s_bits, |
1059 | 4309a79b | Aurelien Jarno | const TCGArg *args,
|
1060 | c28b14c6 | Aurelien Jarno | uint8_t **label_ptr, int which)
|
1061 | 8516a044 | Richard Henderson | { |
1062 | 8516a044 | Richard Henderson | const int addrlo = args[addrlo_idx]; |
1063 | b18212c6 | Stefan Weil | const int r0 = TCG_REG_L0; |
1064 | b18212c6 | Stefan Weil | const int r1 = TCG_REG_L1; |
1065 | 5d8a4f8f | Richard Henderson | TCGType type = TCG_TYPE_I32; |
1066 | 5d8a4f8f | Richard Henderson | int rexw = 0; |
1067 | 5d8a4f8f | Richard Henderson | |
1068 | 5d8a4f8f | Richard Henderson | if (TCG_TARGET_REG_BITS == 64 && TARGET_LONG_BITS == 64) { |
1069 | 5d8a4f8f | Richard Henderson | type = TCG_TYPE_I64; |
1070 | 5d8a4f8f | Richard Henderson | rexw = P_REXW; |
1071 | 5d8a4f8f | Richard Henderson | } |
1072 | 8516a044 | Richard Henderson | |
1073 | 5d8a4f8f | Richard Henderson | tcg_out_mov(s, type, r0, addrlo); |
1074 | 166792f7 | Aurelien Jarno | tcg_out_mov(s, type, r1, addrlo); |
1075 | 8516a044 | Richard Henderson | |
1076 | 166792f7 | Aurelien Jarno | tcg_out_shifti(s, SHIFT_SHR + rexw, r0, |
1077 | 5d8a4f8f | Richard Henderson | TARGET_PAGE_BITS - CPU_TLB_ENTRY_BITS); |
1078 | 8516a044 | Richard Henderson | |
1079 | 5d8a4f8f | Richard Henderson | tgen_arithi(s, ARITH_AND + rexw, r1, |
1080 | 166792f7 | Aurelien Jarno | TARGET_PAGE_MASK | ((1 << s_bits) - 1), 0); |
1081 | 166792f7 | Aurelien Jarno | tgen_arithi(s, ARITH_AND + rexw, r0, |
1082 | 5d8a4f8f | Richard Henderson | (CPU_TLB_SIZE - 1) << CPU_TLB_ENTRY_BITS, 0); |
1083 | 8516a044 | Richard Henderson | |
1084 | 166792f7 | Aurelien Jarno | tcg_out_modrm_sib_offset(s, OPC_LEA + P_REXW, r0, TCG_AREG0, r0, 0,
|
1085 | 9349b4f9 | Andreas Fรคrber | offsetof(CPUArchState, tlb_table[mem_index][0])
|
1086 | 8516a044 | Richard Henderson | + which); |
1087 | 8516a044 | Richard Henderson | |
1088 | 166792f7 | Aurelien Jarno | /* cmp 0(r0), r1 */
|
1089 | 166792f7 | Aurelien Jarno | tcg_out_modrm_offset(s, OPC_CMP_GvEv + rexw, r1, r0, 0);
|
1090 | 8516a044 | Richard Henderson | |
1091 | 166792f7 | Aurelien Jarno | tcg_out_mov(s, type, r1, addrlo); |
1092 | 8516a044 | Richard Henderson | |
1093 | b76f0d8c | Yeongkyoon Lee | /* jne slow_path */
|
1094 | b76f0d8c | Yeongkyoon Lee | tcg_out_opc(s, OPC_JCC_long + JCC_JNE, 0, 0, 0); |
1095 | 8516a044 | Richard Henderson | label_ptr[0] = s->code_ptr;
|
1096 | b76f0d8c | Yeongkyoon Lee | s->code_ptr += 4;
|
1097 | 8516a044 | Richard Henderson | |
1098 | 5d8a4f8f | Richard Henderson | if (TARGET_LONG_BITS > TCG_TARGET_REG_BITS) {
|
1099 | 166792f7 | Aurelien Jarno | /* cmp 4(r0), addrhi */
|
1100 | 166792f7 | Aurelien Jarno | tcg_out_modrm_offset(s, OPC_CMP_GvEv, args[addrlo_idx+1], r0, 4); |
1101 | 8516a044 | Richard Henderson | |
1102 | b76f0d8c | Yeongkyoon Lee | /* jne slow_path */
|
1103 | b76f0d8c | Yeongkyoon Lee | tcg_out_opc(s, OPC_JCC_long + JCC_JNE, 0, 0, 0); |
1104 | 8516a044 | Richard Henderson | label_ptr[1] = s->code_ptr;
|
1105 | b76f0d8c | Yeongkyoon Lee | s->code_ptr += 4;
|
1106 | 8516a044 | Richard Henderson | } |
1107 | 8516a044 | Richard Henderson | |
1108 | 8516a044 | Richard Henderson | /* TLB Hit. */
|
1109 | 8516a044 | Richard Henderson | |
1110 | 166792f7 | Aurelien Jarno | /* add addend(r0), r1 */
|
1111 | 166792f7 | Aurelien Jarno | tcg_out_modrm_offset(s, OPC_ADD_GvEv + P_REXW, r1, r0, |
1112 | 8516a044 | Richard Henderson | offsetof(CPUTLBEntry, addend) - which); |
1113 | 8516a044 | Richard Henderson | } |
1114 | 44b37ace | Richard Henderson | #elif defined(__x86_64__) && defined(__linux__)
|
1115 | 44b37ace | Richard Henderson | # include <asm/prctl.h> |
1116 | 44b37ace | Richard Henderson | # include <sys/prctl.h> |
1117 | 44b37ace | Richard Henderson | |
1118 | 44b37ace | Richard Henderson | int arch_prctl(int code, unsigned long addr); |
1119 | 44b37ace | Richard Henderson | |
1120 | 44b37ace | Richard Henderson | static int guest_base_flags; |
1121 | 44b37ace | Richard Henderson | static inline void setup_guest_base_seg(void) |
1122 | 44b37ace | Richard Henderson | { |
1123 | 44b37ace | Richard Henderson | if (arch_prctl(ARCH_SET_GS, GUEST_BASE) == 0) { |
1124 | 44b37ace | Richard Henderson | guest_base_flags = P_GS; |
1125 | 44b37ace | Richard Henderson | } |
1126 | 44b37ace | Richard Henderson | } |
1127 | 44b37ace | Richard Henderson | #else
|
1128 | 44b37ace | Richard Henderson | # define guest_base_flags 0 |
1129 | 44b37ace | Richard Henderson | static inline void setup_guest_base_seg(void) { } |
1130 | 44b37ace | Richard Henderson | #endif /* SOFTMMU */ |
1131 | c896fe29 | bellard | |
1132 | be5a4eb7 | Richard Henderson | static void tcg_out_qemu_ld_direct(TCGContext *s, int datalo, int datahi, |
1133 | 44b37ace | Richard Henderson | int base, tcg_target_long ofs, int seg, |
1134 | 44b37ace | Richard Henderson | int sizeop)
|
1135 | be5a4eb7 | Richard Henderson | { |
1136 | be5a4eb7 | Richard Henderson | #ifdef TARGET_WORDS_BIGENDIAN
|
1137 | be5a4eb7 | Richard Henderson | const int bswap = 1; |
1138 | be5a4eb7 | Richard Henderson | #else
|
1139 | be5a4eb7 | Richard Henderson | const int bswap = 0; |
1140 | 379f6698 | Paul Brook | #endif
|
1141 | be5a4eb7 | Richard Henderson | switch (sizeop) {
|
1142 | be5a4eb7 | Richard Henderson | case 0: |
1143 | 44b37ace | Richard Henderson | tcg_out_modrm_offset(s, OPC_MOVZBL + seg, datalo, base, ofs); |
1144 | be5a4eb7 | Richard Henderson | break;
|
1145 | be5a4eb7 | Richard Henderson | case 0 | 4: |
1146 | 44b37ace | Richard Henderson | tcg_out_modrm_offset(s, OPC_MOVSBL + P_REXW + seg, datalo, base, ofs); |
1147 | be5a4eb7 | Richard Henderson | break;
|
1148 | be5a4eb7 | Richard Henderson | case 1: |
1149 | 44b37ace | Richard Henderson | tcg_out_modrm_offset(s, OPC_MOVZWL + seg, datalo, base, ofs); |
1150 | be5a4eb7 | Richard Henderson | if (bswap) {
|
1151 | be5a4eb7 | Richard Henderson | tcg_out_rolw_8(s, datalo); |
1152 | be5a4eb7 | Richard Henderson | } |
1153 | be5a4eb7 | Richard Henderson | break;
|
1154 | be5a4eb7 | Richard Henderson | case 1 | 4: |
1155 | be5a4eb7 | Richard Henderson | if (bswap) {
|
1156 | 44b37ace | Richard Henderson | tcg_out_modrm_offset(s, OPC_MOVZWL + seg, datalo, base, ofs); |
1157 | be5a4eb7 | Richard Henderson | tcg_out_rolw_8(s, datalo); |
1158 | 5d8a4f8f | Richard Henderson | tcg_out_modrm(s, OPC_MOVSWL + P_REXW, datalo, datalo); |
1159 | 5d8a4f8f | Richard Henderson | } else {
|
1160 | 44b37ace | Richard Henderson | tcg_out_modrm_offset(s, OPC_MOVSWL + P_REXW + seg, |
1161 | 44b37ace | Richard Henderson | datalo, base, ofs); |
1162 | be5a4eb7 | Richard Henderson | } |
1163 | be5a4eb7 | Richard Henderson | break;
|
1164 | be5a4eb7 | Richard Henderson | case 2: |
1165 | 44b37ace | Richard Henderson | tcg_out_modrm_offset(s, OPC_MOVL_GvEv + seg, datalo, base, ofs); |
1166 | be5a4eb7 | Richard Henderson | if (bswap) {
|
1167 | be5a4eb7 | Richard Henderson | tcg_out_bswap32(s, datalo); |
1168 | be5a4eb7 | Richard Henderson | } |
1169 | be5a4eb7 | Richard Henderson | break;
|
1170 | 5d8a4f8f | Richard Henderson | #if TCG_TARGET_REG_BITS == 64 |
1171 | 5d8a4f8f | Richard Henderson | case 2 | 4: |
1172 | be5a4eb7 | Richard Henderson | if (bswap) {
|
1173 | 44b37ace | Richard Henderson | tcg_out_modrm_offset(s, OPC_MOVL_GvEv + seg, datalo, base, ofs); |
1174 | 5d8a4f8f | Richard Henderson | tcg_out_bswap32(s, datalo); |
1175 | 5d8a4f8f | Richard Henderson | tcg_out_ext32s(s, datalo, datalo); |
1176 | be5a4eb7 | Richard Henderson | } else {
|
1177 | 44b37ace | Richard Henderson | tcg_out_modrm_offset(s, OPC_MOVSLQ + seg, datalo, base, ofs); |
1178 | be5a4eb7 | Richard Henderson | } |
1179 | 5d8a4f8f | Richard Henderson | break;
|
1180 | 5d8a4f8f | Richard Henderson | #endif
|
1181 | 5d8a4f8f | Richard Henderson | case 3: |
1182 | 5d8a4f8f | Richard Henderson | if (TCG_TARGET_REG_BITS == 64) { |
1183 | 44b37ace | Richard Henderson | tcg_out_modrm_offset(s, OPC_MOVL_GvEv + P_REXW + seg, |
1184 | 44b37ace | Richard Henderson | datalo, base, ofs); |
1185 | 5d8a4f8f | Richard Henderson | if (bswap) {
|
1186 | 5d8a4f8f | Richard Henderson | tcg_out_bswap64(s, datalo); |
1187 | 5d8a4f8f | Richard Henderson | } |
1188 | 5d8a4f8f | Richard Henderson | } else {
|
1189 | 5d8a4f8f | Richard Henderson | if (bswap) {
|
1190 | 5d8a4f8f | Richard Henderson | int t = datalo;
|
1191 | 5d8a4f8f | Richard Henderson | datalo = datahi; |
1192 | 5d8a4f8f | Richard Henderson | datahi = t; |
1193 | 5d8a4f8f | Richard Henderson | } |
1194 | 5d8a4f8f | Richard Henderson | if (base != datalo) {
|
1195 | 44b37ace | Richard Henderson | tcg_out_modrm_offset(s, OPC_MOVL_GvEv + seg, |
1196 | 44b37ace | Richard Henderson | datalo, base, ofs); |
1197 | 44b37ace | Richard Henderson | tcg_out_modrm_offset(s, OPC_MOVL_GvEv + seg, |
1198 | 44b37ace | Richard Henderson | datahi, base, ofs + 4);
|
1199 | 5d8a4f8f | Richard Henderson | } else {
|
1200 | 44b37ace | Richard Henderson | tcg_out_modrm_offset(s, OPC_MOVL_GvEv + seg, |
1201 | 44b37ace | Richard Henderson | datahi, base, ofs + 4);
|
1202 | 44b37ace | Richard Henderson | tcg_out_modrm_offset(s, OPC_MOVL_GvEv + seg, |
1203 | 44b37ace | Richard Henderson | datalo, base, ofs); |
1204 | 5d8a4f8f | Richard Henderson | } |
1205 | 5d8a4f8f | Richard Henderson | if (bswap) {
|
1206 | 5d8a4f8f | Richard Henderson | tcg_out_bswap32(s, datalo); |
1207 | 5d8a4f8f | Richard Henderson | tcg_out_bswap32(s, datahi); |
1208 | 5d8a4f8f | Richard Henderson | } |
1209 | be5a4eb7 | Richard Henderson | } |
1210 | be5a4eb7 | Richard Henderson | break;
|
1211 | be5a4eb7 | Richard Henderson | default:
|
1212 | be5a4eb7 | Richard Henderson | tcg_abort(); |
1213 | be5a4eb7 | Richard Henderson | } |
1214 | be5a4eb7 | Richard Henderson | } |
1215 | 379f6698 | Paul Brook | |
1216 | c896fe29 | bellard | /* XXX: qemu_ld and qemu_st could be modified to clobber only EDX and
|
1217 | c896fe29 | bellard | EAX. It will be useful once fixed registers globals are less
|
1218 | c896fe29 | bellard | common. */
|
1219 | c896fe29 | bellard | static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, |
1220 | c896fe29 | bellard | int opc)
|
1221 | c896fe29 | bellard | { |
1222 | 1a6dc1e4 | Richard Henderson | int data_reg, data_reg2 = 0; |
1223 | 8516a044 | Richard Henderson | int addrlo_idx;
|
1224 | c896fe29 | bellard | #if defined(CONFIG_SOFTMMU)
|
1225 | 6a18ae2d | Blue Swirl | int mem_index, s_bits;
|
1226 | b76f0d8c | Yeongkyoon Lee | uint8_t *label_ptr[2];
|
1227 | c896fe29 | bellard | #endif
|
1228 | c896fe29 | bellard | |
1229 | 8516a044 | Richard Henderson | data_reg = args[0];
|
1230 | 8516a044 | Richard Henderson | addrlo_idx = 1;
|
1231 | 5d8a4f8f | Richard Henderson | if (TCG_TARGET_REG_BITS == 32 && opc == 3) { |
1232 | 8516a044 | Richard Henderson | data_reg2 = args[1];
|
1233 | 8516a044 | Richard Henderson | addrlo_idx = 2;
|
1234 | 1a6dc1e4 | Richard Henderson | } |
1235 | c896fe29 | bellard | |
1236 | c896fe29 | bellard | #if defined(CONFIG_SOFTMMU)
|
1237 | 5d8a4f8f | Richard Henderson | mem_index = args[addrlo_idx + 1 + (TARGET_LONG_BITS > TCG_TARGET_REG_BITS)];
|
1238 | 8516a044 | Richard Henderson | s_bits = opc & 3;
|
1239 | 1a6dc1e4 | Richard Henderson | |
1240 | 8516a044 | Richard Henderson | tcg_out_tlb_load(s, addrlo_idx, mem_index, s_bits, args, |
1241 | 8516a044 | Richard Henderson | label_ptr, offsetof(CPUTLBEntry, addr_read)); |
1242 | 1a6dc1e4 | Richard Henderson | |
1243 | 1a6dc1e4 | Richard Henderson | /* TLB Hit. */
|
1244 | 44b37ace | Richard Henderson | tcg_out_qemu_ld_direct(s, data_reg, data_reg2, TCG_REG_L1, 0, 0, opc); |
1245 | c896fe29 | bellard | |
1246 | b76f0d8c | Yeongkyoon Lee | /* Record the current context of a load into ldst label */
|
1247 | b76f0d8c | Yeongkyoon Lee | add_qemu_ldst_label(s, |
1248 | b76f0d8c | Yeongkyoon Lee | 1,
|
1249 | b76f0d8c | Yeongkyoon Lee | opc, |
1250 | b76f0d8c | Yeongkyoon Lee | data_reg, |
1251 | b76f0d8c | Yeongkyoon Lee | data_reg2, |
1252 | b76f0d8c | Yeongkyoon Lee | args[addrlo_idx], |
1253 | b76f0d8c | Yeongkyoon Lee | args[addrlo_idx + 1],
|
1254 | b76f0d8c | Yeongkyoon Lee | mem_index, |
1255 | b76f0d8c | Yeongkyoon Lee | s->code_ptr, |
1256 | b76f0d8c | Yeongkyoon Lee | label_ptr); |
1257 | c896fe29 | bellard | #else
|
1258 | 5d8a4f8f | Richard Henderson | { |
1259 | 5d8a4f8f | Richard Henderson | int32_t offset = GUEST_BASE; |
1260 | 5d8a4f8f | Richard Henderson | int base = args[addrlo_idx];
|
1261 | 44b37ace | Richard Henderson | int seg = 0; |
1262 | 44b37ace | Richard Henderson | |
1263 | 44b37ace | Richard Henderson | /* ??? We assume all operations have left us with register contents
|
1264 | 44b37ace | Richard Henderson | that are zero extended. So far this appears to be true. If we
|
1265 | 44b37ace | Richard Henderson | want to enforce this, we can either do an explicit zero-extension
|
1266 | 44b37ace | Richard Henderson | here, or (if GUEST_BASE == 0, or a segment register is in use)
|
1267 | 44b37ace | Richard Henderson | use the ADDR32 prefix. For now, do nothing. */
|
1268 | 44b37ace | Richard Henderson | if (GUEST_BASE && guest_base_flags) {
|
1269 | 44b37ace | Richard Henderson | seg = guest_base_flags; |
1270 | 44b37ace | Richard Henderson | offset = 0;
|
1271 | 44b37ace | Richard Henderson | } else if (TCG_TARGET_REG_BITS == 64 && offset != GUEST_BASE) { |
1272 | 44b37ace | Richard Henderson | tcg_out_movi(s, TCG_TYPE_I64, TCG_REG_L1, GUEST_BASE); |
1273 | 44b37ace | Richard Henderson | tgen_arithr(s, ARITH_ADD + P_REXW, TCG_REG_L1, base); |
1274 | 44b37ace | Richard Henderson | base = TCG_REG_L1; |
1275 | 44b37ace | Richard Henderson | offset = 0;
|
1276 | 5d8a4f8f | Richard Henderson | } |
1277 | 5d8a4f8f | Richard Henderson | |
1278 | 44b37ace | Richard Henderson | tcg_out_qemu_ld_direct(s, data_reg, data_reg2, base, offset, seg, opc); |
1279 | 5d8a4f8f | Richard Henderson | } |
1280 | c896fe29 | bellard | #endif
|
1281 | be5a4eb7 | Richard Henderson | } |
1282 | c896fe29 | bellard | |
1283 | be5a4eb7 | Richard Henderson | static void tcg_out_qemu_st_direct(TCGContext *s, int datalo, int datahi, |
1284 | 44b37ace | Richard Henderson | int base, tcg_target_long ofs, int seg, |
1285 | 44b37ace | Richard Henderson | int sizeop)
|
1286 | be5a4eb7 | Richard Henderson | { |
1287 | c896fe29 | bellard | #ifdef TARGET_WORDS_BIGENDIAN
|
1288 | be5a4eb7 | Richard Henderson | const int bswap = 1; |
1289 | c896fe29 | bellard | #else
|
1290 | be5a4eb7 | Richard Henderson | const int bswap = 0; |
1291 | c896fe29 | bellard | #endif
|
1292 | be5a4eb7 | Richard Henderson | /* ??? Ideally we wouldn't need a scratch register. For user-only,
|
1293 | be5a4eb7 | Richard Henderson | we could perform the bswap twice to restore the original value
|
1294 | be5a4eb7 | Richard Henderson | instead of moving to the scratch. But as it is, the L constraint
|
1295 | 166792f7 | Aurelien Jarno | means that TCG_REG_L0 is definitely free here. */
|
1296 | 166792f7 | Aurelien Jarno | const int scratch = TCG_REG_L0; |
1297 | be5a4eb7 | Richard Henderson | |
1298 | be5a4eb7 | Richard Henderson | switch (sizeop) {
|
1299 | c896fe29 | bellard | case 0: |
1300 | 44b37ace | Richard Henderson | tcg_out_modrm_offset(s, OPC_MOVB_EvGv + P_REXB_R + seg, |
1301 | 44b37ace | Richard Henderson | datalo, base, ofs); |
1302 | c896fe29 | bellard | break;
|
1303 | c896fe29 | bellard | case 1: |
1304 | c896fe29 | bellard | if (bswap) {
|
1305 | 3b6dac34 | Richard Henderson | tcg_out_mov(s, TCG_TYPE_I32, scratch, datalo); |
1306 | be5a4eb7 | Richard Henderson | tcg_out_rolw_8(s, scratch); |
1307 | be5a4eb7 | Richard Henderson | datalo = scratch; |
1308 | c896fe29 | bellard | } |
1309 | 44b37ace | Richard Henderson | tcg_out_modrm_offset(s, OPC_MOVL_EvGv + P_DATA16 + seg, |
1310 | 44b37ace | Richard Henderson | datalo, base, ofs); |
1311 | c896fe29 | bellard | break;
|
1312 | c896fe29 | bellard | case 2: |
1313 | c896fe29 | bellard | if (bswap) {
|
1314 | 3b6dac34 | Richard Henderson | tcg_out_mov(s, TCG_TYPE_I32, scratch, datalo); |
1315 | be5a4eb7 | Richard Henderson | tcg_out_bswap32(s, scratch); |
1316 | be5a4eb7 | Richard Henderson | datalo = scratch; |
1317 | c896fe29 | bellard | } |
1318 | 44b37ace | Richard Henderson | tcg_out_modrm_offset(s, OPC_MOVL_EvGv + seg, datalo, base, ofs); |
1319 | c896fe29 | bellard | break;
|
1320 | c896fe29 | bellard | case 3: |
1321 | 5d8a4f8f | Richard Henderson | if (TCG_TARGET_REG_BITS == 64) { |
1322 | 5d8a4f8f | Richard Henderson | if (bswap) {
|
1323 | 5d8a4f8f | Richard Henderson | tcg_out_mov(s, TCG_TYPE_I64, scratch, datalo); |
1324 | 5d8a4f8f | Richard Henderson | tcg_out_bswap64(s, scratch); |
1325 | 5d8a4f8f | Richard Henderson | datalo = scratch; |
1326 | 5d8a4f8f | Richard Henderson | } |
1327 | 44b37ace | Richard Henderson | tcg_out_modrm_offset(s, OPC_MOVL_EvGv + P_REXW + seg, |
1328 | 44b37ace | Richard Henderson | datalo, base, ofs); |
1329 | 5d8a4f8f | Richard Henderson | } else if (bswap) { |
1330 | 3b6dac34 | Richard Henderson | tcg_out_mov(s, TCG_TYPE_I32, scratch, datahi); |
1331 | be5a4eb7 | Richard Henderson | tcg_out_bswap32(s, scratch); |
1332 | 44b37ace | Richard Henderson | tcg_out_modrm_offset(s, OPC_MOVL_EvGv + seg, scratch, base, ofs); |
1333 | 3b6dac34 | Richard Henderson | tcg_out_mov(s, TCG_TYPE_I32, scratch, datalo); |
1334 | be5a4eb7 | Richard Henderson | tcg_out_bswap32(s, scratch); |
1335 | 44b37ace | Richard Henderson | tcg_out_modrm_offset(s, OPC_MOVL_EvGv + seg, scratch, base, ofs+4);
|
1336 | c896fe29 | bellard | } else {
|
1337 | 44b37ace | Richard Henderson | tcg_out_modrm_offset(s, OPC_MOVL_EvGv + seg, datalo, base, ofs); |
1338 | 44b37ace | Richard Henderson | tcg_out_modrm_offset(s, OPC_MOVL_EvGv + seg, datahi, base, ofs+4);
|
1339 | c896fe29 | bellard | } |
1340 | c896fe29 | bellard | break;
|
1341 | c896fe29 | bellard | default:
|
1342 | c896fe29 | bellard | tcg_abort(); |
1343 | c896fe29 | bellard | } |
1344 | c896fe29 | bellard | } |
1345 | c896fe29 | bellard | |
1346 | c896fe29 | bellard | static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args, |
1347 | c896fe29 | bellard | int opc)
|
1348 | c896fe29 | bellard | { |
1349 | 1a6dc1e4 | Richard Henderson | int data_reg, data_reg2 = 0; |
1350 | 8516a044 | Richard Henderson | int addrlo_idx;
|
1351 | c896fe29 | bellard | #if defined(CONFIG_SOFTMMU)
|
1352 | 8516a044 | Richard Henderson | int mem_index, s_bits;
|
1353 | b76f0d8c | Yeongkyoon Lee | uint8_t *label_ptr[2];
|
1354 | c896fe29 | bellard | #endif
|
1355 | c896fe29 | bellard | |
1356 | 8516a044 | Richard Henderson | data_reg = args[0];
|
1357 | 8516a044 | Richard Henderson | addrlo_idx = 1;
|
1358 | 5d8a4f8f | Richard Henderson | if (TCG_TARGET_REG_BITS == 32 && opc == 3) { |
1359 | 8516a044 | Richard Henderson | data_reg2 = args[1];
|
1360 | 8516a044 | Richard Henderson | addrlo_idx = 2;
|
1361 | 1a6dc1e4 | Richard Henderson | } |
1362 | c896fe29 | bellard | |
1363 | c896fe29 | bellard | #if defined(CONFIG_SOFTMMU)
|
1364 | 5d8a4f8f | Richard Henderson | mem_index = args[addrlo_idx + 1 + (TARGET_LONG_BITS > TCG_TARGET_REG_BITS)];
|
1365 | 8516a044 | Richard Henderson | s_bits = opc; |
1366 | 1a6dc1e4 | Richard Henderson | |
1367 | 8516a044 | Richard Henderson | tcg_out_tlb_load(s, addrlo_idx, mem_index, s_bits, args, |
1368 | 8516a044 | Richard Henderson | label_ptr, offsetof(CPUTLBEntry, addr_write)); |
1369 | 1a6dc1e4 | Richard Henderson | |
1370 | 1a6dc1e4 | Richard Henderson | /* TLB Hit. */
|
1371 | 44b37ace | Richard Henderson | tcg_out_qemu_st_direct(s, data_reg, data_reg2, TCG_REG_L1, 0, 0, opc); |
1372 | c896fe29 | bellard | |
1373 | b76f0d8c | Yeongkyoon Lee | /* Record the current context of a store into ldst label */
|
1374 | b76f0d8c | Yeongkyoon Lee | add_qemu_ldst_label(s, |
1375 | b76f0d8c | Yeongkyoon Lee | 0,
|
1376 | b76f0d8c | Yeongkyoon Lee | opc, |
1377 | b76f0d8c | Yeongkyoon Lee | data_reg, |
1378 | b76f0d8c | Yeongkyoon Lee | data_reg2, |
1379 | b76f0d8c | Yeongkyoon Lee | args[addrlo_idx], |
1380 | b76f0d8c | Yeongkyoon Lee | args[addrlo_idx + 1],
|
1381 | b76f0d8c | Yeongkyoon Lee | mem_index, |
1382 | b76f0d8c | Yeongkyoon Lee | s->code_ptr, |
1383 | b76f0d8c | Yeongkyoon Lee | label_ptr); |
1384 | b76f0d8c | Yeongkyoon Lee | #else
|
1385 | b76f0d8c | Yeongkyoon Lee | { |
1386 | b76f0d8c | Yeongkyoon Lee | int32_t offset = GUEST_BASE; |
1387 | b76f0d8c | Yeongkyoon Lee | int base = args[addrlo_idx];
|
1388 | b76f0d8c | Yeongkyoon Lee | int seg = 0; |
1389 | b76f0d8c | Yeongkyoon Lee | |
1390 | b76f0d8c | Yeongkyoon Lee | /* ??? We assume all operations have left us with register contents
|
1391 | b76f0d8c | Yeongkyoon Lee | that are zero extended. So far this appears to be true. If we
|
1392 | b76f0d8c | Yeongkyoon Lee | want to enforce this, we can either do an explicit zero-extension
|
1393 | b76f0d8c | Yeongkyoon Lee | here, or (if GUEST_BASE == 0, or a segment register is in use)
|
1394 | b76f0d8c | Yeongkyoon Lee | use the ADDR32 prefix. For now, do nothing. */
|
1395 | b76f0d8c | Yeongkyoon Lee | if (GUEST_BASE && guest_base_flags) {
|
1396 | b76f0d8c | Yeongkyoon Lee | seg = guest_base_flags; |
1397 | b76f0d8c | Yeongkyoon Lee | offset = 0;
|
1398 | b76f0d8c | Yeongkyoon Lee | } else if (TCG_TARGET_REG_BITS == 64 && offset != GUEST_BASE) { |
1399 | b76f0d8c | Yeongkyoon Lee | tcg_out_movi(s, TCG_TYPE_I64, TCG_REG_L1, GUEST_BASE); |
1400 | b76f0d8c | Yeongkyoon Lee | tgen_arithr(s, ARITH_ADD + P_REXW, TCG_REG_L1, base); |
1401 | b76f0d8c | Yeongkyoon Lee | base = TCG_REG_L1; |
1402 | b76f0d8c | Yeongkyoon Lee | offset = 0;
|
1403 | b76f0d8c | Yeongkyoon Lee | } |
1404 | b76f0d8c | Yeongkyoon Lee | |
1405 | b76f0d8c | Yeongkyoon Lee | tcg_out_qemu_st_direct(s, data_reg, data_reg2, base, offset, seg, opc); |
1406 | b76f0d8c | Yeongkyoon Lee | } |
1407 | b76f0d8c | Yeongkyoon Lee | #endif
|
1408 | b76f0d8c | Yeongkyoon Lee | } |
1409 | b76f0d8c | Yeongkyoon Lee | |
1410 | b76f0d8c | Yeongkyoon Lee | #if defined(CONFIG_SOFTMMU)
|
1411 | b76f0d8c | Yeongkyoon Lee | /*
|
1412 | b76f0d8c | Yeongkyoon Lee | * Record the context of a call to the out of line helper code for the slow path
|
1413 | b76f0d8c | Yeongkyoon Lee | * for a load or store, so that we can later generate the correct helper code
|
1414 | b76f0d8c | Yeongkyoon Lee | */
|
1415 | b76f0d8c | Yeongkyoon Lee | static void add_qemu_ldst_label(TCGContext *s, |
1416 | b76f0d8c | Yeongkyoon Lee | int is_ld,
|
1417 | b76f0d8c | Yeongkyoon Lee | int opc,
|
1418 | b76f0d8c | Yeongkyoon Lee | int data_reg,
|
1419 | b76f0d8c | Yeongkyoon Lee | int data_reg2,
|
1420 | b76f0d8c | Yeongkyoon Lee | int addrlo_reg,
|
1421 | b76f0d8c | Yeongkyoon Lee | int addrhi_reg,
|
1422 | b76f0d8c | Yeongkyoon Lee | int mem_index,
|
1423 | b76f0d8c | Yeongkyoon Lee | uint8_t *raddr, |
1424 | b76f0d8c | Yeongkyoon Lee | uint8_t **label_ptr) |
1425 | b76f0d8c | Yeongkyoon Lee | { |
1426 | b76f0d8c | Yeongkyoon Lee | int idx;
|
1427 | b76f0d8c | Yeongkyoon Lee | TCGLabelQemuLdst *label; |
1428 | b76f0d8c | Yeongkyoon Lee | |
1429 | b76f0d8c | Yeongkyoon Lee | if (s->nb_qemu_ldst_labels >= TCG_MAX_QEMU_LDST) {
|
1430 | b76f0d8c | Yeongkyoon Lee | tcg_abort(); |
1431 | b76f0d8c | Yeongkyoon Lee | } |
1432 | b76f0d8c | Yeongkyoon Lee | |
1433 | b76f0d8c | Yeongkyoon Lee | idx = s->nb_qemu_ldst_labels++; |
1434 | b76f0d8c | Yeongkyoon Lee | label = (TCGLabelQemuLdst *)&s->qemu_ldst_labels[idx]; |
1435 | b76f0d8c | Yeongkyoon Lee | label->is_ld = is_ld; |
1436 | b76f0d8c | Yeongkyoon Lee | label->opc = opc; |
1437 | b76f0d8c | Yeongkyoon Lee | label->datalo_reg = data_reg; |
1438 | b76f0d8c | Yeongkyoon Lee | label->datahi_reg = data_reg2; |
1439 | b76f0d8c | Yeongkyoon Lee | label->addrlo_reg = addrlo_reg; |
1440 | b76f0d8c | Yeongkyoon Lee | label->addrhi_reg = addrhi_reg; |
1441 | b76f0d8c | Yeongkyoon Lee | label->mem_index = mem_index; |
1442 | b76f0d8c | Yeongkyoon Lee | label->raddr = raddr; |
1443 | b76f0d8c | Yeongkyoon Lee | label->label_ptr[0] = label_ptr[0]; |
1444 | b76f0d8c | Yeongkyoon Lee | if (TARGET_LONG_BITS > TCG_TARGET_REG_BITS) {
|
1445 | b76f0d8c | Yeongkyoon Lee | label->label_ptr[1] = label_ptr[1]; |
1446 | b76f0d8c | Yeongkyoon Lee | } |
1447 | b76f0d8c | Yeongkyoon Lee | } |
1448 | b76f0d8c | Yeongkyoon Lee | |
1449 | b76f0d8c | Yeongkyoon Lee | /*
|
1450 | b76f0d8c | Yeongkyoon Lee | * Generate code for the slow path for a load at the end of block
|
1451 | b76f0d8c | Yeongkyoon Lee | */
|
1452 | b76f0d8c | Yeongkyoon Lee | static void tcg_out_qemu_ld_slow_path(TCGContext *s, TCGLabelQemuLdst *label) |
1453 | b76f0d8c | Yeongkyoon Lee | { |
1454 | b76f0d8c | Yeongkyoon Lee | int s_bits;
|
1455 | b76f0d8c | Yeongkyoon Lee | int opc = label->opc;
|
1456 | b76f0d8c | Yeongkyoon Lee | int mem_index = label->mem_index;
|
1457 | b76f0d8c | Yeongkyoon Lee | #if TCG_TARGET_REG_BITS == 32 |
1458 | b76f0d8c | Yeongkyoon Lee | int stack_adjust;
|
1459 | b76f0d8c | Yeongkyoon Lee | int addrlo_reg = label->addrlo_reg;
|
1460 | b76f0d8c | Yeongkyoon Lee | int addrhi_reg = label->addrhi_reg;
|
1461 | b76f0d8c | Yeongkyoon Lee | #endif
|
1462 | b76f0d8c | Yeongkyoon Lee | int data_reg = label->datalo_reg;
|
1463 | b76f0d8c | Yeongkyoon Lee | int data_reg2 = label->datahi_reg;
|
1464 | b76f0d8c | Yeongkyoon Lee | uint8_t *raddr = label->raddr; |
1465 | b76f0d8c | Yeongkyoon Lee | uint8_t **label_ptr = &label->label_ptr[0];
|
1466 | b76f0d8c | Yeongkyoon Lee | |
1467 | b76f0d8c | Yeongkyoon Lee | s_bits = opc & 3;
|
1468 | b76f0d8c | Yeongkyoon Lee | |
1469 | b76f0d8c | Yeongkyoon Lee | /* resolve label address */
|
1470 | b76f0d8c | Yeongkyoon Lee | *(uint32_t *)label_ptr[0] = (uint32_t)(s->code_ptr - label_ptr[0] - 4); |
1471 | b76f0d8c | Yeongkyoon Lee | if (TARGET_LONG_BITS > TCG_TARGET_REG_BITS) {
|
1472 | b76f0d8c | Yeongkyoon Lee | *(uint32_t *)label_ptr[1] = (uint32_t)(s->code_ptr - label_ptr[1] - 4); |
1473 | b76f0d8c | Yeongkyoon Lee | } |
1474 | b76f0d8c | Yeongkyoon Lee | |
1475 | b76f0d8c | Yeongkyoon Lee | #if TCG_TARGET_REG_BITS == 32 |
1476 | b76f0d8c | Yeongkyoon Lee | tcg_out_pushi(s, mem_index); |
1477 | b76f0d8c | Yeongkyoon Lee | stack_adjust = 4;
|
1478 | b76f0d8c | Yeongkyoon Lee | if (TARGET_LONG_BITS == 64) { |
1479 | b76f0d8c | Yeongkyoon Lee | tcg_out_push(s, addrhi_reg); |
1480 | b76f0d8c | Yeongkyoon Lee | stack_adjust += 4;
|
1481 | b76f0d8c | Yeongkyoon Lee | } |
1482 | b76f0d8c | Yeongkyoon Lee | tcg_out_push(s, addrlo_reg); |
1483 | b76f0d8c | Yeongkyoon Lee | stack_adjust += 4;
|
1484 | b76f0d8c | Yeongkyoon Lee | tcg_out_push(s, TCG_AREG0); |
1485 | b76f0d8c | Yeongkyoon Lee | stack_adjust += 4;
|
1486 | b76f0d8c | Yeongkyoon Lee | #else
|
1487 | b76f0d8c | Yeongkyoon Lee | tcg_out_mov(s, TCG_TYPE_I64, tcg_target_call_iarg_regs[0], TCG_AREG0);
|
1488 | b76f0d8c | Yeongkyoon Lee | /* The second argument is already loaded with addrlo. */
|
1489 | b76f0d8c | Yeongkyoon Lee | tcg_out_movi(s, TCG_TYPE_I32, tcg_target_call_iarg_regs[2], mem_index);
|
1490 | b76f0d8c | Yeongkyoon Lee | #endif
|
1491 | b76f0d8c | Yeongkyoon Lee | |
1492 | b76f0d8c | Yeongkyoon Lee | /* Code generation of qemu_ld/st's slow path calling MMU helper
|
1493 | b76f0d8c | Yeongkyoon Lee | |
1494 | b76f0d8c | Yeongkyoon Lee | PRE_PROC ...
|
1495 | b76f0d8c | Yeongkyoon Lee | call MMU helper
|
1496 | b76f0d8c | Yeongkyoon Lee | jmp POST_PROC (2b) : short forward jump <- GETRA()
|
1497 | b76f0d8c | Yeongkyoon Lee | jmp next_code (5b) : dummy long backward jump which is never executed
|
1498 | b76f0d8c | Yeongkyoon Lee | POST_PROC ... : do post-processing <- GETRA() + 7
|
1499 | b76f0d8c | Yeongkyoon Lee | jmp next_code : jump to the code corresponding to next IR of qemu_ld/st
|
1500 | b76f0d8c | Yeongkyoon Lee | */
|
1501 | b76f0d8c | Yeongkyoon Lee | |
1502 | b76f0d8c | Yeongkyoon Lee | tcg_out_calli(s, (tcg_target_long)qemu_ld_helpers[s_bits]); |
1503 | b76f0d8c | Yeongkyoon Lee | |
1504 | b76f0d8c | Yeongkyoon Lee | /* Jump to post-processing code */
|
1505 | 1a6dc1e4 | Richard Henderson | tcg_out8(s, OPC_JMP_short); |
1506 | b76f0d8c | Yeongkyoon Lee | tcg_out8(s, 5);
|
1507 | b76f0d8c | Yeongkyoon Lee | /* Dummy backward jump having information of fast path'pc for MMU helpers */
|
1508 | b76f0d8c | Yeongkyoon Lee | tcg_out8(s, OPC_JMP_long); |
1509 | b76f0d8c | Yeongkyoon Lee | *(int32_t *)s->code_ptr = (int32_t)(raddr - s->code_ptr - 4);
|
1510 | b76f0d8c | Yeongkyoon Lee | s->code_ptr += 4;
|
1511 | 78686523 | Richard Henderson | |
1512 | b76f0d8c | Yeongkyoon Lee | #if TCG_TARGET_REG_BITS == 32 |
1513 | b76f0d8c | Yeongkyoon Lee | if (stack_adjust == (TCG_TARGET_REG_BITS / 8)) { |
1514 | b76f0d8c | Yeongkyoon Lee | /* Pop and discard. This is 2 bytes smaller than the add. */
|
1515 | b76f0d8c | Yeongkyoon Lee | tcg_out_pop(s, TCG_REG_ECX); |
1516 | b76f0d8c | Yeongkyoon Lee | } else if (stack_adjust != 0) { |
1517 | b76f0d8c | Yeongkyoon Lee | tcg_out_addi(s, TCG_REG_CALL_STACK, stack_adjust); |
1518 | b76f0d8c | Yeongkyoon Lee | } |
1519 | b76f0d8c | Yeongkyoon Lee | #endif
|
1520 | 1a6dc1e4 | Richard Henderson | |
1521 | b76f0d8c | Yeongkyoon Lee | switch(opc) {
|
1522 | b76f0d8c | Yeongkyoon Lee | case 0 | 4: |
1523 | b76f0d8c | Yeongkyoon Lee | tcg_out_ext8s(s, data_reg, TCG_REG_EAX, P_REXW); |
1524 | b76f0d8c | Yeongkyoon Lee | break;
|
1525 | b76f0d8c | Yeongkyoon Lee | case 1 | 4: |
1526 | b76f0d8c | Yeongkyoon Lee | tcg_out_ext16s(s, data_reg, TCG_REG_EAX, P_REXW); |
1527 | b76f0d8c | Yeongkyoon Lee | break;
|
1528 | b76f0d8c | Yeongkyoon Lee | case 0: |
1529 | b76f0d8c | Yeongkyoon Lee | tcg_out_ext8u(s, data_reg, TCG_REG_EAX); |
1530 | b76f0d8c | Yeongkyoon Lee | break;
|
1531 | b76f0d8c | Yeongkyoon Lee | case 1: |
1532 | b76f0d8c | Yeongkyoon Lee | tcg_out_ext16u(s, data_reg, TCG_REG_EAX); |
1533 | b76f0d8c | Yeongkyoon Lee | break;
|
1534 | b76f0d8c | Yeongkyoon Lee | case 2: |
1535 | b76f0d8c | Yeongkyoon Lee | tcg_out_mov(s, TCG_TYPE_I32, data_reg, TCG_REG_EAX); |
1536 | b76f0d8c | Yeongkyoon Lee | break;
|
1537 | b76f0d8c | Yeongkyoon Lee | #if TCG_TARGET_REG_BITS == 64 |
1538 | b76f0d8c | Yeongkyoon Lee | case 2 | 4: |
1539 | b76f0d8c | Yeongkyoon Lee | tcg_out_ext32s(s, data_reg, TCG_REG_EAX); |
1540 | b76f0d8c | Yeongkyoon Lee | break;
|
1541 | b76f0d8c | Yeongkyoon Lee | #endif
|
1542 | b76f0d8c | Yeongkyoon Lee | case 3: |
1543 | b76f0d8c | Yeongkyoon Lee | if (TCG_TARGET_REG_BITS == 64) { |
1544 | b76f0d8c | Yeongkyoon Lee | tcg_out_mov(s, TCG_TYPE_I64, data_reg, TCG_REG_RAX); |
1545 | b76f0d8c | Yeongkyoon Lee | } else if (data_reg == TCG_REG_EDX) { |
1546 | b76f0d8c | Yeongkyoon Lee | /* xchg %edx, %eax */
|
1547 | b76f0d8c | Yeongkyoon Lee | tcg_out_opc(s, OPC_XCHG_ax_r32 + TCG_REG_EDX, 0, 0, 0); |
1548 | b76f0d8c | Yeongkyoon Lee | tcg_out_mov(s, TCG_TYPE_I32, data_reg2, TCG_REG_EAX); |
1549 | b76f0d8c | Yeongkyoon Lee | } else {
|
1550 | b76f0d8c | Yeongkyoon Lee | tcg_out_mov(s, TCG_TYPE_I32, data_reg, TCG_REG_EAX); |
1551 | b76f0d8c | Yeongkyoon Lee | tcg_out_mov(s, TCG_TYPE_I32, data_reg2, TCG_REG_EDX); |
1552 | b76f0d8c | Yeongkyoon Lee | } |
1553 | b76f0d8c | Yeongkyoon Lee | break;
|
1554 | b76f0d8c | Yeongkyoon Lee | default:
|
1555 | b76f0d8c | Yeongkyoon Lee | tcg_abort(); |
1556 | b76f0d8c | Yeongkyoon Lee | } |
1557 | b76f0d8c | Yeongkyoon Lee | |
1558 | b76f0d8c | Yeongkyoon Lee | /* Jump to the code corresponding to next IR of qemu_st */
|
1559 | b76f0d8c | Yeongkyoon Lee | tcg_out_jmp(s, (tcg_target_long)raddr); |
1560 | b76f0d8c | Yeongkyoon Lee | } |
1561 | b76f0d8c | Yeongkyoon Lee | |
1562 | b76f0d8c | Yeongkyoon Lee | /*
|
1563 | b76f0d8c | Yeongkyoon Lee | * Generate code for the slow path for a store at the end of block
|
1564 | b76f0d8c | Yeongkyoon Lee | */
|
1565 | b76f0d8c | Yeongkyoon Lee | static void tcg_out_qemu_st_slow_path(TCGContext *s, TCGLabelQemuLdst *label) |
1566 | b76f0d8c | Yeongkyoon Lee | { |
1567 | b76f0d8c | Yeongkyoon Lee | int s_bits;
|
1568 | b76f0d8c | Yeongkyoon Lee | int stack_adjust;
|
1569 | b76f0d8c | Yeongkyoon Lee | int opc = label->opc;
|
1570 | b76f0d8c | Yeongkyoon Lee | int mem_index = label->mem_index;
|
1571 | b76f0d8c | Yeongkyoon Lee | int data_reg = label->datalo_reg;
|
1572 | b76f0d8c | Yeongkyoon Lee | #if TCG_TARGET_REG_BITS == 32 |
1573 | b76f0d8c | Yeongkyoon Lee | int data_reg2 = label->datahi_reg;
|
1574 | b76f0d8c | Yeongkyoon Lee | int addrlo_reg = label->addrlo_reg;
|
1575 | b76f0d8c | Yeongkyoon Lee | int addrhi_reg = label->addrhi_reg;
|
1576 | b76f0d8c | Yeongkyoon Lee | #endif
|
1577 | b76f0d8c | Yeongkyoon Lee | uint8_t *raddr = label->raddr; |
1578 | b76f0d8c | Yeongkyoon Lee | uint8_t **label_ptr = &label->label_ptr[0];
|
1579 | b76f0d8c | Yeongkyoon Lee | |
1580 | b76f0d8c | Yeongkyoon Lee | s_bits = opc & 3;
|
1581 | b76f0d8c | Yeongkyoon Lee | |
1582 | b76f0d8c | Yeongkyoon Lee | /* resolve label address */
|
1583 | b76f0d8c | Yeongkyoon Lee | *(uint32_t *)label_ptr[0] = (uint32_t)(s->code_ptr - label_ptr[0] - 4); |
1584 | 5d8a4f8f | Richard Henderson | if (TARGET_LONG_BITS > TCG_TARGET_REG_BITS) {
|
1585 | b76f0d8c | Yeongkyoon Lee | *(uint32_t *)label_ptr[1] = (uint32_t)(s->code_ptr - label_ptr[1] - 4); |
1586 | 1a6dc1e4 | Richard Henderson | } |
1587 | c896fe29 | bellard | |
1588 | 6a18ae2d | Blue Swirl | #if TCG_TARGET_REG_BITS == 32 |
1589 | 6a18ae2d | Blue Swirl | tcg_out_pushi(s, mem_index); |
1590 | 6a18ae2d | Blue Swirl | stack_adjust = 4;
|
1591 | 6a18ae2d | Blue Swirl | if (opc == 3) { |
1592 | 6a18ae2d | Blue Swirl | tcg_out_push(s, data_reg2); |
1593 | 6a18ae2d | Blue Swirl | stack_adjust += 4;
|
1594 | 6a18ae2d | Blue Swirl | } |
1595 | 6a18ae2d | Blue Swirl | tcg_out_push(s, data_reg); |
1596 | 6a18ae2d | Blue Swirl | stack_adjust += 4;
|
1597 | 6a18ae2d | Blue Swirl | if (TARGET_LONG_BITS == 64) { |
1598 | b76f0d8c | Yeongkyoon Lee | tcg_out_push(s, addrhi_reg); |
1599 | 6a18ae2d | Blue Swirl | stack_adjust += 4;
|
1600 | c896fe29 | bellard | } |
1601 | b76f0d8c | Yeongkyoon Lee | tcg_out_push(s, addrlo_reg); |
1602 | 6a18ae2d | Blue Swirl | stack_adjust += 4;
|
1603 | e141ab52 | Blue Swirl | tcg_out_push(s, TCG_AREG0); |
1604 | e141ab52 | Blue Swirl | stack_adjust += 4;
|
1605 | 6a18ae2d | Blue Swirl | #else
|
1606 | 166792f7 | Aurelien Jarno | tcg_out_mov(s, TCG_TYPE_I64, tcg_target_call_iarg_regs[0], TCG_AREG0);
|
1607 | 166792f7 | Aurelien Jarno | /* The second argument is already loaded with addrlo. */
|
1608 | 6a18ae2d | Blue Swirl | tcg_out_mov(s, (opc == 3 ? TCG_TYPE_I64 : TCG_TYPE_I32),
|
1609 | 166792f7 | Aurelien Jarno | tcg_target_call_iarg_regs[2], data_reg);
|
1610 | 166792f7 | Aurelien Jarno | tcg_out_movi(s, TCG_TYPE_I32, tcg_target_call_iarg_regs[3], mem_index);
|
1611 | 6a18ae2d | Blue Swirl | stack_adjust = 0;
|
1612 | e141ab52 | Blue Swirl | #endif
|
1613 | aadb21a4 | Richard Henderson | |
1614 | b76f0d8c | Yeongkyoon Lee | /* Code generation of qemu_ld/st's slow path calling MMU helper
|
1615 | b76f0d8c | Yeongkyoon Lee | |
1616 | b76f0d8c | Yeongkyoon Lee | PRE_PROC ...
|
1617 | b76f0d8c | Yeongkyoon Lee | call MMU helper
|
1618 | b76f0d8c | Yeongkyoon Lee | jmp POST_PROC (2b) : short forward jump <- GETRA()
|
1619 | b76f0d8c | Yeongkyoon Lee | jmp next_code (5b) : dummy long backward jump which is never executed
|
1620 | b76f0d8c | Yeongkyoon Lee | POST_PROC ... : do post-processing <- GETRA() + 7
|
1621 | b76f0d8c | Yeongkyoon Lee | jmp next_code : jump to the code corresponding to next IR of qemu_ld/st
|
1622 | b76f0d8c | Yeongkyoon Lee | */
|
1623 | b76f0d8c | Yeongkyoon Lee | |
1624 | aadb21a4 | Richard Henderson | tcg_out_calli(s, (tcg_target_long)qemu_st_helpers[s_bits]); |
1625 | aadb21a4 | Richard Henderson | |
1626 | b76f0d8c | Yeongkyoon Lee | /* Jump to post-processing code */
|
1627 | b76f0d8c | Yeongkyoon Lee | tcg_out8(s, OPC_JMP_short); |
1628 | b76f0d8c | Yeongkyoon Lee | tcg_out8(s, 5);
|
1629 | b76f0d8c | Yeongkyoon Lee | /* Dummy backward jump having information of fast path'pc for MMU helpers */
|
1630 | b76f0d8c | Yeongkyoon Lee | tcg_out8(s, OPC_JMP_long); |
1631 | b76f0d8c | Yeongkyoon Lee | *(int32_t *)s->code_ptr = (int32_t)(raddr - s->code_ptr - 4);
|
1632 | b76f0d8c | Yeongkyoon Lee | s->code_ptr += 4;
|
1633 | b76f0d8c | Yeongkyoon Lee | |
1634 | 5d8a4f8f | Richard Henderson | if (stack_adjust == (TCG_TARGET_REG_BITS / 8)) { |
1635 | aadb21a4 | Richard Henderson | /* Pop and discard. This is 2 bytes smaller than the add. */
|
1636 | aadb21a4 | Richard Henderson | tcg_out_pop(s, TCG_REG_ECX); |
1637 | aadb21a4 | Richard Henderson | } else if (stack_adjust != 0) { |
1638 | e83c80f7 | Blue Swirl | tcg_out_addi(s, TCG_REG_CALL_STACK, stack_adjust); |
1639 | aadb21a4 | Richard Henderson | } |
1640 | aadb21a4 | Richard Henderson | |
1641 | b76f0d8c | Yeongkyoon Lee | /* Jump to the code corresponding to next IR of qemu_st */
|
1642 | b76f0d8c | Yeongkyoon Lee | tcg_out_jmp(s, (tcg_target_long)raddr); |
1643 | b76f0d8c | Yeongkyoon Lee | } |
1644 | 44b37ace | Richard Henderson | |
1645 | b76f0d8c | Yeongkyoon Lee | /*
|
1646 | b76f0d8c | Yeongkyoon Lee | * Generate TB finalization at the end of block
|
1647 | b76f0d8c | Yeongkyoon Lee | */
|
1648 | b76f0d8c | Yeongkyoon Lee | void tcg_out_tb_finalize(TCGContext *s)
|
1649 | b76f0d8c | Yeongkyoon Lee | { |
1650 | b76f0d8c | Yeongkyoon Lee | int i;
|
1651 | b76f0d8c | Yeongkyoon Lee | TCGLabelQemuLdst *label; |
1652 | b76f0d8c | Yeongkyoon Lee | |
1653 | b76f0d8c | Yeongkyoon Lee | /* qemu_ld/st slow paths */
|
1654 | b76f0d8c | Yeongkyoon Lee | for (i = 0; i < s->nb_qemu_ldst_labels; i++) { |
1655 | b76f0d8c | Yeongkyoon Lee | label = (TCGLabelQemuLdst *)&s->qemu_ldst_labels[i]; |
1656 | b76f0d8c | Yeongkyoon Lee | if (label->is_ld) {
|
1657 | b76f0d8c | Yeongkyoon Lee | tcg_out_qemu_ld_slow_path(s, label); |
1658 | b76f0d8c | Yeongkyoon Lee | } else {
|
1659 | b76f0d8c | Yeongkyoon Lee | tcg_out_qemu_st_slow_path(s, label); |
1660 | 5d8a4f8f | Richard Henderson | } |
1661 | 5d8a4f8f | Richard Henderson | } |
1662 | c896fe29 | bellard | } |
1663 | b76f0d8c | Yeongkyoon Lee | #endif /* CONFIG_SOFTMMU */ |
1664 | c896fe29 | bellard | |
1665 | a9751609 | Richard Henderson | static inline void tcg_out_op(TCGContext *s, TCGOpcode opc, |
1666 | c896fe29 | bellard | const TCGArg *args, const int *const_args) |
1667 | c896fe29 | bellard | { |
1668 | 5d8a4f8f | Richard Henderson | int c, rexw = 0; |
1669 | 5d8a4f8f | Richard Henderson | |
1670 | 5d8a4f8f | Richard Henderson | #if TCG_TARGET_REG_BITS == 64 |
1671 | 5d8a4f8f | Richard Henderson | # define OP_32_64(x) \
|
1672 | 5d8a4f8f | Richard Henderson | case glue(glue(INDEX_op_, x), _i64): \
|
1673 | 5d8a4f8f | Richard Henderson | rexw = P_REXW; /* FALLTHRU */ \
|
1674 | 5d8a4f8f | Richard Henderson | case glue(glue(INDEX_op_, x), _i32)
|
1675 | 5d8a4f8f | Richard Henderson | #else
|
1676 | 5d8a4f8f | Richard Henderson | # define OP_32_64(x) \
|
1677 | 5d8a4f8f | Richard Henderson | case glue(glue(INDEX_op_, x), _i32)
|
1678 | 5d8a4f8f | Richard Henderson | #endif
|
1679 | 78686523 | Richard Henderson | |
1680 | c896fe29 | bellard | switch(opc) {
|
1681 | c896fe29 | bellard | case INDEX_op_exit_tb:
|
1682 | 5d8a4f8f | Richard Henderson | tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_EAX, args[0]);
|
1683 | 5d8a4f8f | Richard Henderson | tcg_out_jmp(s, (tcg_target_long) tb_ret_addr); |
1684 | c896fe29 | bellard | break;
|
1685 | c896fe29 | bellard | case INDEX_op_goto_tb:
|
1686 | c896fe29 | bellard | if (s->tb_jmp_offset) {
|
1687 | c896fe29 | bellard | /* direct jump method */
|
1688 | da441cff | Richard Henderson | tcg_out8(s, OPC_JMP_long); /* jmp im */
|
1689 | c896fe29 | bellard | s->tb_jmp_offset[args[0]] = s->code_ptr - s->code_buf;
|
1690 | c896fe29 | bellard | tcg_out32(s, 0);
|
1691 | c896fe29 | bellard | } else {
|
1692 | c896fe29 | bellard | /* indirect jump method */
|
1693 | 9363dedb | Richard Henderson | tcg_out_modrm_offset(s, OPC_GRP5, EXT5_JMPN_Ev, -1,
|
1694 | c896fe29 | bellard | (tcg_target_long)(s->tb_next + args[0]));
|
1695 | c896fe29 | bellard | } |
1696 | c896fe29 | bellard | s->tb_next_offset[args[0]] = s->code_ptr - s->code_buf;
|
1697 | c896fe29 | bellard | break;
|
1698 | c896fe29 | bellard | case INDEX_op_call:
|
1699 | c896fe29 | bellard | if (const_args[0]) { |
1700 | aadb21a4 | Richard Henderson | tcg_out_calli(s, args[0]);
|
1701 | c896fe29 | bellard | } else {
|
1702 | aadb21a4 | Richard Henderson | /* call *reg */
|
1703 | 9363dedb | Richard Henderson | tcg_out_modrm(s, OPC_GRP5, EXT5_CALLN_Ev, args[0]);
|
1704 | c896fe29 | bellard | } |
1705 | c896fe29 | bellard | break;
|
1706 | c896fe29 | bellard | case INDEX_op_br:
|
1707 | f75b56c1 | Richard Henderson | tcg_out_jxx(s, JCC_JMP, args[0], 0); |
1708 | c896fe29 | bellard | break;
|
1709 | c896fe29 | bellard | case INDEX_op_movi_i32:
|
1710 | c896fe29 | bellard | tcg_out_movi(s, TCG_TYPE_I32, args[0], args[1]); |
1711 | c896fe29 | bellard | break;
|
1712 | 5d8a4f8f | Richard Henderson | OP_32_64(ld8u): |
1713 | 5d8a4f8f | Richard Henderson | /* Note that we can ignore REXW for the zero-extend to 64-bit. */
|
1714 | 55e082a7 | Richard Henderson | tcg_out_modrm_offset(s, OPC_MOVZBL, args[0], args[1], args[2]); |
1715 | c896fe29 | bellard | break;
|
1716 | 5d8a4f8f | Richard Henderson | OP_32_64(ld8s): |
1717 | 5d8a4f8f | Richard Henderson | tcg_out_modrm_offset(s, OPC_MOVSBL + rexw, args[0], args[1], args[2]); |
1718 | c896fe29 | bellard | break;
|
1719 | 5d8a4f8f | Richard Henderson | OP_32_64(ld16u): |
1720 | 5d8a4f8f | Richard Henderson | /* Note that we can ignore REXW for the zero-extend to 64-bit. */
|
1721 | 55e082a7 | Richard Henderson | tcg_out_modrm_offset(s, OPC_MOVZWL, args[0], args[1], args[2]); |
1722 | c896fe29 | bellard | break;
|
1723 | 5d8a4f8f | Richard Henderson | OP_32_64(ld16s): |
1724 | 5d8a4f8f | Richard Henderson | tcg_out_modrm_offset(s, OPC_MOVSWL + rexw, args[0], args[1], args[2]); |
1725 | c896fe29 | bellard | break;
|
1726 | 5d8a4f8f | Richard Henderson | #if TCG_TARGET_REG_BITS == 64 |
1727 | 5d8a4f8f | Richard Henderson | case INDEX_op_ld32u_i64:
|
1728 | 5d8a4f8f | Richard Henderson | #endif
|
1729 | c896fe29 | bellard | case INDEX_op_ld_i32:
|
1730 | af266089 | Richard Henderson | tcg_out_ld(s, TCG_TYPE_I32, args[0], args[1], args[2]); |
1731 | c896fe29 | bellard | break;
|
1732 | 5d8a4f8f | Richard Henderson | |
1733 | 5d8a4f8f | Richard Henderson | OP_32_64(st8): |
1734 | 5c2d2a9e | Aurelien Jarno | if (const_args[0]) { |
1735 | 5c2d2a9e | Aurelien Jarno | tcg_out_modrm_offset(s, OPC_MOVB_EvIz, |
1736 | 5c2d2a9e | Aurelien Jarno | 0, args[1], args[2]); |
1737 | 5c2d2a9e | Aurelien Jarno | tcg_out8(s, args[0]);
|
1738 | 5c2d2a9e | Aurelien Jarno | } else {
|
1739 | 5c2d2a9e | Aurelien Jarno | tcg_out_modrm_offset(s, OPC_MOVB_EvGv | P_REXB_R, |
1740 | 5c2d2a9e | Aurelien Jarno | args[0], args[1], args[2]); |
1741 | 5c2d2a9e | Aurelien Jarno | } |
1742 | c896fe29 | bellard | break;
|
1743 | 5d8a4f8f | Richard Henderson | OP_32_64(st16): |
1744 | 5c2d2a9e | Aurelien Jarno | if (const_args[0]) { |
1745 | 5c2d2a9e | Aurelien Jarno | tcg_out_modrm_offset(s, OPC_MOVL_EvIz | P_DATA16, |
1746 | 5c2d2a9e | Aurelien Jarno | 0, args[1], args[2]); |
1747 | 5c2d2a9e | Aurelien Jarno | tcg_out16(s, args[0]);
|
1748 | 5c2d2a9e | Aurelien Jarno | } else {
|
1749 | 5c2d2a9e | Aurelien Jarno | tcg_out_modrm_offset(s, OPC_MOVL_EvGv | P_DATA16, |
1750 | 5c2d2a9e | Aurelien Jarno | args[0], args[1], args[2]); |
1751 | 5c2d2a9e | Aurelien Jarno | } |
1752 | c896fe29 | bellard | break;
|
1753 | 5d8a4f8f | Richard Henderson | #if TCG_TARGET_REG_BITS == 64 |
1754 | 5d8a4f8f | Richard Henderson | case INDEX_op_st32_i64:
|
1755 | 5d8a4f8f | Richard Henderson | #endif
|
1756 | c896fe29 | bellard | case INDEX_op_st_i32:
|
1757 | 5c2d2a9e | Aurelien Jarno | if (const_args[0]) { |
1758 | 5c2d2a9e | Aurelien Jarno | tcg_out_modrm_offset(s, OPC_MOVL_EvIz, 0, args[1], args[2]); |
1759 | 5c2d2a9e | Aurelien Jarno | tcg_out32(s, args[0]);
|
1760 | 5c2d2a9e | Aurelien Jarno | } else {
|
1761 | 5c2d2a9e | Aurelien Jarno | tcg_out_st(s, TCG_TYPE_I32, args[0], args[1], args[2]); |
1762 | 5c2d2a9e | Aurelien Jarno | } |
1763 | c896fe29 | bellard | break;
|
1764 | 5d8a4f8f | Richard Henderson | |
1765 | 5d8a4f8f | Richard Henderson | OP_32_64(add): |
1766 | 5d1e4e85 | Richard Henderson | /* For 3-operand addition, use LEA. */
|
1767 | 5d1e4e85 | Richard Henderson | if (args[0] != args[1]) { |
1768 | 5d1e4e85 | Richard Henderson | TCGArg a0 = args[0], a1 = args[1], a2 = args[2], c3 = 0; |
1769 | 5d1e4e85 | Richard Henderson | |
1770 | 5d1e4e85 | Richard Henderson | if (const_args[2]) { |
1771 | 5d1e4e85 | Richard Henderson | c3 = a2, a2 = -1;
|
1772 | 5d1e4e85 | Richard Henderson | } else if (a0 == a2) { |
1773 | 5d1e4e85 | Richard Henderson | /* Watch out for dest = src + dest, since we've removed
|
1774 | 5d1e4e85 | Richard Henderson | the matching constraint on the add. */
|
1775 | 5d8a4f8f | Richard Henderson | tgen_arithr(s, ARITH_ADD + rexw, a0, a1); |
1776 | 5d1e4e85 | Richard Henderson | break;
|
1777 | 5d1e4e85 | Richard Henderson | } |
1778 | 5d1e4e85 | Richard Henderson | |
1779 | 5d8a4f8f | Richard Henderson | tcg_out_modrm_sib_offset(s, OPC_LEA + rexw, a0, a1, a2, 0, c3);
|
1780 | 5d1e4e85 | Richard Henderson | break;
|
1781 | 5d1e4e85 | Richard Henderson | } |
1782 | 5d1e4e85 | Richard Henderson | c = ARITH_ADD; |
1783 | 5d1e4e85 | Richard Henderson | goto gen_arith;
|
1784 | 5d8a4f8f | Richard Henderson | OP_32_64(sub): |
1785 | c896fe29 | bellard | c = ARITH_SUB; |
1786 | c896fe29 | bellard | goto gen_arith;
|
1787 | 5d8a4f8f | Richard Henderson | OP_32_64(and): |
1788 | c896fe29 | bellard | c = ARITH_AND; |
1789 | c896fe29 | bellard | goto gen_arith;
|
1790 | 5d8a4f8f | Richard Henderson | OP_32_64(or): |
1791 | c896fe29 | bellard | c = ARITH_OR; |
1792 | c896fe29 | bellard | goto gen_arith;
|
1793 | 5d8a4f8f | Richard Henderson | OP_32_64(xor): |
1794 | c896fe29 | bellard | c = ARITH_XOR; |
1795 | c896fe29 | bellard | goto gen_arith;
|
1796 | c896fe29 | bellard | gen_arith:
|
1797 | c896fe29 | bellard | if (const_args[2]) { |
1798 | 5d8a4f8f | Richard Henderson | tgen_arithi(s, c + rexw, args[0], args[2], 0); |
1799 | c896fe29 | bellard | } else {
|
1800 | 5d8a4f8f | Richard Henderson | tgen_arithr(s, c + rexw, args[0], args[2]); |
1801 | c896fe29 | bellard | } |
1802 | c896fe29 | bellard | break;
|
1803 | 5d8a4f8f | Richard Henderson | |
1804 | 5d8a4f8f | Richard Henderson | OP_32_64(mul): |
1805 | c896fe29 | bellard | if (const_args[2]) { |
1806 | c896fe29 | bellard | int32_t val; |
1807 | c896fe29 | bellard | val = args[2];
|
1808 | c896fe29 | bellard | if (val == (int8_t)val) {
|
1809 | 5d8a4f8f | Richard Henderson | tcg_out_modrm(s, OPC_IMUL_GvEvIb + rexw, args[0], args[0]); |
1810 | c896fe29 | bellard | tcg_out8(s, val); |
1811 | c896fe29 | bellard | } else {
|
1812 | 5d8a4f8f | Richard Henderson | tcg_out_modrm(s, OPC_IMUL_GvEvIz + rexw, args[0], args[0]); |
1813 | c896fe29 | bellard | tcg_out32(s, val); |
1814 | c896fe29 | bellard | } |
1815 | c896fe29 | bellard | } else {
|
1816 | 5d8a4f8f | Richard Henderson | tcg_out_modrm(s, OPC_IMUL_GvEv + rexw, args[0], args[2]); |
1817 | c896fe29 | bellard | } |
1818 | c896fe29 | bellard | break;
|
1819 | 5d8a4f8f | Richard Henderson | |
1820 | 5d8a4f8f | Richard Henderson | OP_32_64(div2): |
1821 | 5d8a4f8f | Richard Henderson | tcg_out_modrm(s, OPC_GRP3_Ev + rexw, EXT3_IDIV, args[4]);
|
1822 | c896fe29 | bellard | break;
|
1823 | 5d8a4f8f | Richard Henderson | OP_32_64(divu2): |
1824 | 5d8a4f8f | Richard Henderson | tcg_out_modrm(s, OPC_GRP3_Ev + rexw, EXT3_DIV, args[4]);
|
1825 | c896fe29 | bellard | break;
|
1826 | 5d8a4f8f | Richard Henderson | |
1827 | 5d8a4f8f | Richard Henderson | OP_32_64(shl): |
1828 | c896fe29 | bellard | c = SHIFT_SHL; |
1829 | 5d8a4f8f | Richard Henderson | goto gen_shift;
|
1830 | 5d8a4f8f | Richard Henderson | OP_32_64(shr): |
1831 | c896fe29 | bellard | c = SHIFT_SHR; |
1832 | 5d8a4f8f | Richard Henderson | goto gen_shift;
|
1833 | 5d8a4f8f | Richard Henderson | OP_32_64(sar): |
1834 | c896fe29 | bellard | c = SHIFT_SAR; |
1835 | 5d8a4f8f | Richard Henderson | goto gen_shift;
|
1836 | 5d8a4f8f | Richard Henderson | OP_32_64(rotl): |
1837 | 9619376c | aurel32 | c = SHIFT_ROL; |
1838 | 5d8a4f8f | Richard Henderson | goto gen_shift;
|
1839 | 5d8a4f8f | Richard Henderson | OP_32_64(rotr): |
1840 | 9619376c | aurel32 | c = SHIFT_ROR; |
1841 | 5d8a4f8f | Richard Henderson | goto gen_shift;
|
1842 | 5d8a4f8f | Richard Henderson | gen_shift:
|
1843 | 5d8a4f8f | Richard Henderson | if (const_args[2]) { |
1844 | 5d8a4f8f | Richard Henderson | tcg_out_shifti(s, c + rexw, args[0], args[2]); |
1845 | 81570a70 | Richard Henderson | } else {
|
1846 | 5d8a4f8f | Richard Henderson | tcg_out_modrm(s, OPC_SHIFT_cl + rexw, c, args[0]);
|
1847 | 81570a70 | Richard Henderson | } |
1848 | c896fe29 | bellard | break;
|
1849 | 5d8a4f8f | Richard Henderson | |
1850 | c896fe29 | bellard | case INDEX_op_brcond_i32:
|
1851 | 5d8a4f8f | Richard Henderson | tcg_out_brcond32(s, args[2], args[0], args[1], const_args[1], |
1852 | 5d8a4f8f | Richard Henderson | args[3], 0); |
1853 | c896fe29 | bellard | break;
|
1854 | 5d8a4f8f | Richard Henderson | case INDEX_op_setcond_i32:
|
1855 | 5d8a4f8f | Richard Henderson | tcg_out_setcond32(s, args[3], args[0], args[1], |
1856 | 5d8a4f8f | Richard Henderson | args[2], const_args[2]); |
1857 | c896fe29 | bellard | break;
|
1858 | d0a16297 | Richard Henderson | case INDEX_op_movcond_i32:
|
1859 | d0a16297 | Richard Henderson | tcg_out_movcond32(s, args[5], args[0], args[1], |
1860 | d0a16297 | Richard Henderson | args[2], const_args[2], args[3]); |
1861 | d0a16297 | Richard Henderson | break;
|
1862 | c896fe29 | bellard | |
1863 | 5d8a4f8f | Richard Henderson | OP_32_64(bswap16): |
1864 | fcb5dac1 | Richard Henderson | tcg_out_rolw_8(s, args[0]);
|
1865 | 5d40cd63 | aurel32 | break;
|
1866 | 5d8a4f8f | Richard Henderson | OP_32_64(bswap32): |
1867 | fcb5dac1 | Richard Henderson | tcg_out_bswap32(s, args[0]);
|
1868 | 9619376c | aurel32 | break;
|
1869 | 9619376c | aurel32 | |
1870 | 5d8a4f8f | Richard Henderson | OP_32_64(neg): |
1871 | 5d8a4f8f | Richard Henderson | tcg_out_modrm(s, OPC_GRP3_Ev + rexw, EXT3_NEG, args[0]);
|
1872 | 9619376c | aurel32 | break;
|
1873 | 5d8a4f8f | Richard Henderson | OP_32_64(not): |
1874 | 5d8a4f8f | Richard Henderson | tcg_out_modrm(s, OPC_GRP3_Ev + rexw, EXT3_NOT, args[0]);
|
1875 | 9619376c | aurel32 | break;
|
1876 | 9619376c | aurel32 | |
1877 | 5d8a4f8f | Richard Henderson | OP_32_64(ext8s): |
1878 | 5d8a4f8f | Richard Henderson | tcg_out_ext8s(s, args[0], args[1], rexw); |
1879 | 9619376c | aurel32 | break;
|
1880 | 5d8a4f8f | Richard Henderson | OP_32_64(ext16s): |
1881 | 5d8a4f8f | Richard Henderson | tcg_out_ext16s(s, args[0], args[1], rexw); |
1882 | 9619376c | aurel32 | break;
|
1883 | 5d8a4f8f | Richard Henderson | OP_32_64(ext8u): |
1884 | 55e082a7 | Richard Henderson | tcg_out_ext8u(s, args[0], args[1]); |
1885 | 5f0ce17f | Aurelien Jarno | break;
|
1886 | 5d8a4f8f | Richard Henderson | OP_32_64(ext16u): |
1887 | 55e082a7 | Richard Henderson | tcg_out_ext16u(s, args[0], args[1]); |
1888 | 5f0ce17f | Aurelien Jarno | break;
|
1889 | 9619376c | aurel32 | |
1890 | c896fe29 | bellard | case INDEX_op_qemu_ld8u:
|
1891 | c896fe29 | bellard | tcg_out_qemu_ld(s, args, 0);
|
1892 | c896fe29 | bellard | break;
|
1893 | c896fe29 | bellard | case INDEX_op_qemu_ld8s:
|
1894 | c896fe29 | bellard | tcg_out_qemu_ld(s, args, 0 | 4); |
1895 | c896fe29 | bellard | break;
|
1896 | c896fe29 | bellard | case INDEX_op_qemu_ld16u:
|
1897 | c896fe29 | bellard | tcg_out_qemu_ld(s, args, 1);
|
1898 | c896fe29 | bellard | break;
|
1899 | c896fe29 | bellard | case INDEX_op_qemu_ld16s:
|
1900 | c896fe29 | bellard | tcg_out_qemu_ld(s, args, 1 | 4); |
1901 | c896fe29 | bellard | break;
|
1902 | 5d8a4f8f | Richard Henderson | #if TCG_TARGET_REG_BITS == 64 |
1903 | 5d8a4f8f | Richard Henderson | case INDEX_op_qemu_ld32u:
|
1904 | 5d8a4f8f | Richard Henderson | #endif
|
1905 | 86feb1c8 | Richard Henderson | case INDEX_op_qemu_ld32:
|
1906 | c896fe29 | bellard | tcg_out_qemu_ld(s, args, 2);
|
1907 | c896fe29 | bellard | break;
|
1908 | c896fe29 | bellard | case INDEX_op_qemu_ld64:
|
1909 | c896fe29 | bellard | tcg_out_qemu_ld(s, args, 3);
|
1910 | c896fe29 | bellard | break;
|
1911 | 78686523 | Richard Henderson | |
1912 | c896fe29 | bellard | case INDEX_op_qemu_st8:
|
1913 | c896fe29 | bellard | tcg_out_qemu_st(s, args, 0);
|
1914 | c896fe29 | bellard | break;
|
1915 | c896fe29 | bellard | case INDEX_op_qemu_st16:
|
1916 | c896fe29 | bellard | tcg_out_qemu_st(s, args, 1);
|
1917 | c896fe29 | bellard | break;
|
1918 | c896fe29 | bellard | case INDEX_op_qemu_st32:
|
1919 | c896fe29 | bellard | tcg_out_qemu_st(s, args, 2);
|
1920 | c896fe29 | bellard | break;
|
1921 | c896fe29 | bellard | case INDEX_op_qemu_st64:
|
1922 | c896fe29 | bellard | tcg_out_qemu_st(s, args, 3);
|
1923 | c896fe29 | bellard | break;
|
1924 | c896fe29 | bellard | |
1925 | 5d8a4f8f | Richard Henderson | case INDEX_op_mulu2_i32:
|
1926 | 5d8a4f8f | Richard Henderson | tcg_out_modrm(s, OPC_GRP3_Ev, EXT3_MUL, args[3]);
|
1927 | 5d8a4f8f | Richard Henderson | break;
|
1928 | 5d8a4f8f | Richard Henderson | case INDEX_op_add2_i32:
|
1929 | 5d8a4f8f | Richard Henderson | if (const_args[4]) { |
1930 | 5d8a4f8f | Richard Henderson | tgen_arithi(s, ARITH_ADD, args[0], args[4], 1); |
1931 | 5d8a4f8f | Richard Henderson | } else {
|
1932 | 5d8a4f8f | Richard Henderson | tgen_arithr(s, ARITH_ADD, args[0], args[4]); |
1933 | 5d8a4f8f | Richard Henderson | } |
1934 | 5d8a4f8f | Richard Henderson | if (const_args[5]) { |
1935 | 5d8a4f8f | Richard Henderson | tgen_arithi(s, ARITH_ADC, args[1], args[5], 1); |
1936 | 5d8a4f8f | Richard Henderson | } else {
|
1937 | 5d8a4f8f | Richard Henderson | tgen_arithr(s, ARITH_ADC, args[1], args[5]); |
1938 | 5d8a4f8f | Richard Henderson | } |
1939 | 5d8a4f8f | Richard Henderson | break;
|
1940 | 5d8a4f8f | Richard Henderson | case INDEX_op_sub2_i32:
|
1941 | 5d8a4f8f | Richard Henderson | if (const_args[4]) { |
1942 | 5d8a4f8f | Richard Henderson | tgen_arithi(s, ARITH_SUB, args[0], args[4], 1); |
1943 | 5d8a4f8f | Richard Henderson | } else {
|
1944 | 5d8a4f8f | Richard Henderson | tgen_arithr(s, ARITH_SUB, args[0], args[4]); |
1945 | 5d8a4f8f | Richard Henderson | } |
1946 | 5d8a4f8f | Richard Henderson | if (const_args[5]) { |
1947 | 5d8a4f8f | Richard Henderson | tgen_arithi(s, ARITH_SBB, args[1], args[5], 1); |
1948 | 5d8a4f8f | Richard Henderson | } else {
|
1949 | 5d8a4f8f | Richard Henderson | tgen_arithr(s, ARITH_SBB, args[1], args[5]); |
1950 | 5d8a4f8f | Richard Henderson | } |
1951 | 5d8a4f8f | Richard Henderson | break;
|
1952 | bbc863bf | Richard Henderson | |
1953 | bbc863bf | Richard Henderson | #if TCG_TARGET_REG_BITS == 32 |
1954 | bbc863bf | Richard Henderson | case INDEX_op_brcond2_i32:
|
1955 | bbc863bf | Richard Henderson | tcg_out_brcond2(s, args, const_args, 0);
|
1956 | bbc863bf | Richard Henderson | break;
|
1957 | bbc863bf | Richard Henderson | case INDEX_op_setcond2_i32:
|
1958 | bbc863bf | Richard Henderson | tcg_out_setcond2(s, args, const_args); |
1959 | bbc863bf | Richard Henderson | break;
|
1960 | 5d8a4f8f | Richard Henderson | #else /* TCG_TARGET_REG_BITS == 64 */ |
1961 | 5d8a4f8f | Richard Henderson | case INDEX_op_movi_i64:
|
1962 | 5d8a4f8f | Richard Henderson | tcg_out_movi(s, TCG_TYPE_I64, args[0], args[1]); |
1963 | 5d8a4f8f | Richard Henderson | break;
|
1964 | 5d8a4f8f | Richard Henderson | case INDEX_op_ld32s_i64:
|
1965 | 5d8a4f8f | Richard Henderson | tcg_out_modrm_offset(s, OPC_MOVSLQ, args[0], args[1], args[2]); |
1966 | 5d8a4f8f | Richard Henderson | break;
|
1967 | 5d8a4f8f | Richard Henderson | case INDEX_op_ld_i64:
|
1968 | 5d8a4f8f | Richard Henderson | tcg_out_ld(s, TCG_TYPE_I64, args[0], args[1], args[2]); |
1969 | 5d8a4f8f | Richard Henderson | break;
|
1970 | 5d8a4f8f | Richard Henderson | case INDEX_op_st_i64:
|
1971 | 5c2d2a9e | Aurelien Jarno | if (const_args[0]) { |
1972 | 5c2d2a9e | Aurelien Jarno | tcg_out_modrm_offset(s, OPC_MOVL_EvIz | P_REXW, |
1973 | 5c2d2a9e | Aurelien Jarno | 0, args[1], args[2]); |
1974 | 5c2d2a9e | Aurelien Jarno | tcg_out32(s, args[0]);
|
1975 | 5c2d2a9e | Aurelien Jarno | } else {
|
1976 | 5c2d2a9e | Aurelien Jarno | tcg_out_st(s, TCG_TYPE_I64, args[0], args[1], args[2]); |
1977 | 5c2d2a9e | Aurelien Jarno | } |
1978 | 5d8a4f8f | Richard Henderson | break;
|
1979 | 5d8a4f8f | Richard Henderson | case INDEX_op_qemu_ld32s:
|
1980 | 5d8a4f8f | Richard Henderson | tcg_out_qemu_ld(s, args, 2 | 4); |
1981 | 5d8a4f8f | Richard Henderson | break;
|
1982 | 5d8a4f8f | Richard Henderson | |
1983 | 5d8a4f8f | Richard Henderson | case INDEX_op_brcond_i64:
|
1984 | 5d8a4f8f | Richard Henderson | tcg_out_brcond64(s, args[2], args[0], args[1], const_args[1], |
1985 | 5d8a4f8f | Richard Henderson | args[3], 0); |
1986 | 5d8a4f8f | Richard Henderson | break;
|
1987 | 5d8a4f8f | Richard Henderson | case INDEX_op_setcond_i64:
|
1988 | 5d8a4f8f | Richard Henderson | tcg_out_setcond64(s, args[3], args[0], args[1], |
1989 | 5d8a4f8f | Richard Henderson | args[2], const_args[2]); |
1990 | 5d8a4f8f | Richard Henderson | break;
|
1991 | d0a16297 | Richard Henderson | case INDEX_op_movcond_i64:
|
1992 | d0a16297 | Richard Henderson | tcg_out_movcond64(s, args[5], args[0], args[1], |
1993 | d0a16297 | Richard Henderson | args[2], const_args[2], args[3]); |
1994 | d0a16297 | Richard Henderson | break;
|
1995 | 5d8a4f8f | Richard Henderson | |
1996 | 5d8a4f8f | Richard Henderson | case INDEX_op_bswap64_i64:
|
1997 | 5d8a4f8f | Richard Henderson | tcg_out_bswap64(s, args[0]);
|
1998 | 5d8a4f8f | Richard Henderson | break;
|
1999 | 5d8a4f8f | Richard Henderson | case INDEX_op_ext32u_i64:
|
2000 | 5d8a4f8f | Richard Henderson | tcg_out_ext32u(s, args[0], args[1]); |
2001 | 5d8a4f8f | Richard Henderson | break;
|
2002 | 5d8a4f8f | Richard Henderson | case INDEX_op_ext32s_i64:
|
2003 | 5d8a4f8f | Richard Henderson | tcg_out_ext32s(s, args[0], args[1]); |
2004 | 5d8a4f8f | Richard Henderson | break;
|
2005 | 5d8a4f8f | Richard Henderson | #endif
|
2006 | 5d8a4f8f | Richard Henderson | |
2007 | a4773324 | Jan Kiszka | OP_32_64(deposit): |
2008 | a4773324 | Jan Kiszka | if (args[3] == 0 && args[4] == 8) { |
2009 | a4773324 | Jan Kiszka | /* load bits 0..7 */
|
2010 | a4773324 | Jan Kiszka | tcg_out_modrm(s, OPC_MOVB_EvGv | P_REXB_R | P_REXB_RM, |
2011 | a4773324 | Jan Kiszka | args[2], args[0]); |
2012 | a4773324 | Jan Kiszka | } else if (args[3] == 8 && args[4] == 8) { |
2013 | a4773324 | Jan Kiszka | /* load bits 8..15 */
|
2014 | a4773324 | Jan Kiszka | tcg_out_modrm(s, OPC_MOVB_EvGv, args[2], args[0] + 4); |
2015 | a4773324 | Jan Kiszka | } else if (args[3] == 0 && args[4] == 16) { |
2016 | a4773324 | Jan Kiszka | /* load bits 0..15 */
|
2017 | a4773324 | Jan Kiszka | tcg_out_modrm(s, OPC_MOVL_EvGv | P_DATA16, args[2], args[0]); |
2018 | a4773324 | Jan Kiszka | } else {
|
2019 | a4773324 | Jan Kiszka | tcg_abort(); |
2020 | a4773324 | Jan Kiszka | } |
2021 | a4773324 | Jan Kiszka | break;
|
2022 | a4773324 | Jan Kiszka | |
2023 | c896fe29 | bellard | default:
|
2024 | c896fe29 | bellard | tcg_abort(); |
2025 | c896fe29 | bellard | } |
2026 | 5d8a4f8f | Richard Henderson | |
2027 | 5d8a4f8f | Richard Henderson | #undef OP_32_64
|
2028 | c896fe29 | bellard | } |
2029 | c896fe29 | bellard | |
2030 | c896fe29 | bellard | static const TCGTargetOpDef x86_op_defs[] = { |
2031 | c896fe29 | bellard | { INDEX_op_exit_tb, { } }, |
2032 | c896fe29 | bellard | { INDEX_op_goto_tb, { } }, |
2033 | c896fe29 | bellard | { INDEX_op_call, { "ri" } },
|
2034 | c896fe29 | bellard | { INDEX_op_br, { } }, |
2035 | c896fe29 | bellard | { INDEX_op_mov_i32, { "r", "r" } }, |
2036 | c896fe29 | bellard | { INDEX_op_movi_i32, { "r" } },
|
2037 | c896fe29 | bellard | { INDEX_op_ld8u_i32, { "r", "r" } }, |
2038 | c896fe29 | bellard | { INDEX_op_ld8s_i32, { "r", "r" } }, |
2039 | c896fe29 | bellard | { INDEX_op_ld16u_i32, { "r", "r" } }, |
2040 | c896fe29 | bellard | { INDEX_op_ld16s_i32, { "r", "r" } }, |
2041 | c896fe29 | bellard | { INDEX_op_ld_i32, { "r", "r" } }, |
2042 | 5c2d2a9e | Aurelien Jarno | { INDEX_op_st8_i32, { "qi", "r" } }, |
2043 | 5c2d2a9e | Aurelien Jarno | { INDEX_op_st16_i32, { "ri", "r" } }, |
2044 | 5c2d2a9e | Aurelien Jarno | { INDEX_op_st_i32, { "ri", "r" } }, |
2045 | c896fe29 | bellard | |
2046 | 5d1e4e85 | Richard Henderson | { INDEX_op_add_i32, { "r", "r", "ri" } }, |
2047 | c896fe29 | bellard | { INDEX_op_sub_i32, { "r", "0", "ri" } }, |
2048 | c896fe29 | bellard | { INDEX_op_mul_i32, { "r", "0", "ri" } }, |
2049 | c896fe29 | bellard | { INDEX_op_div2_i32, { "a", "d", "0", "1", "r" } }, |
2050 | c896fe29 | bellard | { INDEX_op_divu2_i32, { "a", "d", "0", "1", "r" } }, |
2051 | c896fe29 | bellard | { INDEX_op_and_i32, { "r", "0", "ri" } }, |
2052 | c896fe29 | bellard | { INDEX_op_or_i32, { "r", "0", "ri" } }, |
2053 | c896fe29 | bellard | { INDEX_op_xor_i32, { "r", "0", "ri" } }, |
2054 | c896fe29 | bellard | |
2055 | c896fe29 | bellard | { INDEX_op_shl_i32, { "r", "0", "ci" } }, |
2056 | c896fe29 | bellard | { INDEX_op_shr_i32, { "r", "0", "ci" } }, |
2057 | c896fe29 | bellard | { INDEX_op_sar_i32, { "r", "0", "ci" } }, |
2058 | 9619376c | aurel32 | { INDEX_op_rotl_i32, { "r", "0", "ci" } }, |
2059 | 9619376c | aurel32 | { INDEX_op_rotr_i32, { "r", "0", "ci" } }, |
2060 | c896fe29 | bellard | |
2061 | c896fe29 | bellard | { INDEX_op_brcond_i32, { "r", "ri" } }, |
2062 | c896fe29 | bellard | |
2063 | 5d40cd63 | aurel32 | { INDEX_op_bswap16_i32, { "r", "0" } }, |
2064 | 66896cb8 | aurel32 | { INDEX_op_bswap32_i32, { "r", "0" } }, |
2065 | 9619376c | aurel32 | |
2066 | 9619376c | aurel32 | { INDEX_op_neg_i32, { "r", "0" } }, |
2067 | 9619376c | aurel32 | |
2068 | 9619376c | aurel32 | { INDEX_op_not_i32, { "r", "0" } }, |
2069 | 9619376c | aurel32 | |
2070 | 9619376c | aurel32 | { INDEX_op_ext8s_i32, { "r", "q" } }, |
2071 | 9619376c | aurel32 | { INDEX_op_ext16s_i32, { "r", "r" } }, |
2072 | 55e082a7 | Richard Henderson | { INDEX_op_ext8u_i32, { "r", "q" } }, |
2073 | 55e082a7 | Richard Henderson | { INDEX_op_ext16u_i32, { "r", "r" } }, |
2074 | 9619376c | aurel32 | |
2075 | 1d2699ae | Richard Henderson | { INDEX_op_setcond_i32, { "q", "r", "ri" } }, |
2076 | 5d8a4f8f | Richard Henderson | |
2077 | a4773324 | Jan Kiszka | { INDEX_op_deposit_i32, { "Q", "0", "Q" } }, |
2078 | f813cb83 | Aurelien Jarno | #if TCG_TARGET_HAS_movcond_i32
|
2079 | d0a16297 | Richard Henderson | { INDEX_op_movcond_i32, { "r", "r", "ri", "r", "0" } }, |
2080 | f813cb83 | Aurelien Jarno | #endif
|
2081 | a4773324 | Jan Kiszka | |
2082 | 5d8a4f8f | Richard Henderson | { INDEX_op_mulu2_i32, { "a", "d", "a", "r" } }, |
2083 | 5d8a4f8f | Richard Henderson | { INDEX_op_add2_i32, { "r", "r", "0", "1", "ri", "ri" } }, |
2084 | 5d8a4f8f | Richard Henderson | { INDEX_op_sub2_i32, { "r", "r", "0", "1", "ri", "ri" } }, |
2085 | bbc863bf | Richard Henderson | |
2086 | bbc863bf | Richard Henderson | #if TCG_TARGET_REG_BITS == 32 |
2087 | 5d8a4f8f | Richard Henderson | { INDEX_op_brcond2_i32, { "r", "r", "ri", "ri" } }, |
2088 | 1d2699ae | Richard Henderson | { INDEX_op_setcond2_i32, { "r", "r", "r", "ri", "ri" } }, |
2089 | 5d8a4f8f | Richard Henderson | #else
|
2090 | 5d8a4f8f | Richard Henderson | { INDEX_op_mov_i64, { "r", "r" } }, |
2091 | 5d8a4f8f | Richard Henderson | { INDEX_op_movi_i64, { "r" } },
|
2092 | 5d8a4f8f | Richard Henderson | { INDEX_op_ld8u_i64, { "r", "r" } }, |
2093 | 5d8a4f8f | Richard Henderson | { INDEX_op_ld8s_i64, { "r", "r" } }, |
2094 | 5d8a4f8f | Richard Henderson | { INDEX_op_ld16u_i64, { "r", "r" } }, |
2095 | 5d8a4f8f | Richard Henderson | { INDEX_op_ld16s_i64, { "r", "r" } }, |
2096 | 5d8a4f8f | Richard Henderson | { INDEX_op_ld32u_i64, { "r", "r" } }, |
2097 | 5d8a4f8f | Richard Henderson | { INDEX_op_ld32s_i64, { "r", "r" } }, |
2098 | 5d8a4f8f | Richard Henderson | { INDEX_op_ld_i64, { "r", "r" } }, |
2099 | 5c2d2a9e | Aurelien Jarno | { INDEX_op_st8_i64, { "ri", "r" } }, |
2100 | 5c2d2a9e | Aurelien Jarno | { INDEX_op_st16_i64, { "ri", "r" } }, |
2101 | 5c2d2a9e | Aurelien Jarno | { INDEX_op_st32_i64, { "ri", "r" } }, |
2102 | 5c2d2a9e | Aurelien Jarno | { INDEX_op_st_i64, { "re", "r" } }, |
2103 | 5d8a4f8f | Richard Henderson | |
2104 | 163fa4b0 | Paolo Bonzini | { INDEX_op_add_i64, { "r", "r", "re" } }, |
2105 | 5d8a4f8f | Richard Henderson | { INDEX_op_mul_i64, { "r", "0", "re" } }, |
2106 | 5d8a4f8f | Richard Henderson | { INDEX_op_div2_i64, { "a", "d", "0", "1", "r" } }, |
2107 | 5d8a4f8f | Richard Henderson | { INDEX_op_divu2_i64, { "a", "d", "0", "1", "r" } }, |
2108 | 5d8a4f8f | Richard Henderson | { INDEX_op_sub_i64, { "r", "0", "re" } }, |
2109 | 5d8a4f8f | Richard Henderson | { INDEX_op_and_i64, { "r", "0", "reZ" } }, |
2110 | 5d8a4f8f | Richard Henderson | { INDEX_op_or_i64, { "r", "0", "re" } }, |
2111 | 5d8a4f8f | Richard Henderson | { INDEX_op_xor_i64, { "r", "0", "re" } }, |
2112 | 5d8a4f8f | Richard Henderson | |
2113 | 5d8a4f8f | Richard Henderson | { INDEX_op_shl_i64, { "r", "0", "ci" } }, |
2114 | 5d8a4f8f | Richard Henderson | { INDEX_op_shr_i64, { "r", "0", "ci" } }, |
2115 | 5d8a4f8f | Richard Henderson | { INDEX_op_sar_i64, { "r", "0", "ci" } }, |
2116 | 5d8a4f8f | Richard Henderson | { INDEX_op_rotl_i64, { "r", "0", "ci" } }, |
2117 | 5d8a4f8f | Richard Henderson | { INDEX_op_rotr_i64, { "r", "0", "ci" } }, |
2118 | 5d8a4f8f | Richard Henderson | |
2119 | 5d8a4f8f | Richard Henderson | { INDEX_op_brcond_i64, { "r", "re" } }, |
2120 | 5d8a4f8f | Richard Henderson | { INDEX_op_setcond_i64, { "r", "r", "re" } }, |
2121 | 5d8a4f8f | Richard Henderson | |
2122 | 5d8a4f8f | Richard Henderson | { INDEX_op_bswap16_i64, { "r", "0" } }, |
2123 | 5d8a4f8f | Richard Henderson | { INDEX_op_bswap32_i64, { "r", "0" } }, |
2124 | 5d8a4f8f | Richard Henderson | { INDEX_op_bswap64_i64, { "r", "0" } }, |
2125 | 5d8a4f8f | Richard Henderson | { INDEX_op_neg_i64, { "r", "0" } }, |
2126 | 5d8a4f8f | Richard Henderson | { INDEX_op_not_i64, { "r", "0" } }, |
2127 | 5d8a4f8f | Richard Henderson | |
2128 | 5d8a4f8f | Richard Henderson | { INDEX_op_ext8s_i64, { "r", "r" } }, |
2129 | 5d8a4f8f | Richard Henderson | { INDEX_op_ext16s_i64, { "r", "r" } }, |
2130 | 5d8a4f8f | Richard Henderson | { INDEX_op_ext32s_i64, { "r", "r" } }, |
2131 | 5d8a4f8f | Richard Henderson | { INDEX_op_ext8u_i64, { "r", "r" } }, |
2132 | 5d8a4f8f | Richard Henderson | { INDEX_op_ext16u_i64, { "r", "r" } }, |
2133 | 5d8a4f8f | Richard Henderson | { INDEX_op_ext32u_i64, { "r", "r" } }, |
2134 | a4773324 | Jan Kiszka | |
2135 | a4773324 | Jan Kiszka | { INDEX_op_deposit_i64, { "Q", "0", "Q" } }, |
2136 | d0a16297 | Richard Henderson | { INDEX_op_movcond_i64, { "r", "r", "re", "r", "0" } }, |
2137 | 5d8a4f8f | Richard Henderson | #endif
|
2138 | 1d2699ae | Richard Henderson | |
2139 | 5d8a4f8f | Richard Henderson | #if TCG_TARGET_REG_BITS == 64 |
2140 | 5d8a4f8f | Richard Henderson | { INDEX_op_qemu_ld8u, { "r", "L" } }, |
2141 | 5d8a4f8f | Richard Henderson | { INDEX_op_qemu_ld8s, { "r", "L" } }, |
2142 | 5d8a4f8f | Richard Henderson | { INDEX_op_qemu_ld16u, { "r", "L" } }, |
2143 | 5d8a4f8f | Richard Henderson | { INDEX_op_qemu_ld16s, { "r", "L" } }, |
2144 | 5d8a4f8f | Richard Henderson | { INDEX_op_qemu_ld32, { "r", "L" } }, |
2145 | 5d8a4f8f | Richard Henderson | { INDEX_op_qemu_ld32u, { "r", "L" } }, |
2146 | 5d8a4f8f | Richard Henderson | { INDEX_op_qemu_ld32s, { "r", "L" } }, |
2147 | 5d8a4f8f | Richard Henderson | { INDEX_op_qemu_ld64, { "r", "L" } }, |
2148 | 5d8a4f8f | Richard Henderson | |
2149 | 5d8a4f8f | Richard Henderson | { INDEX_op_qemu_st8, { "L", "L" } }, |
2150 | 5d8a4f8f | Richard Henderson | { INDEX_op_qemu_st16, { "L", "L" } }, |
2151 | 5d8a4f8f | Richard Henderson | { INDEX_op_qemu_st32, { "L", "L" } }, |
2152 | 5d8a4f8f | Richard Henderson | { INDEX_op_qemu_st64, { "L", "L" } }, |
2153 | 5d8a4f8f | Richard Henderson | #elif TARGET_LONG_BITS <= TCG_TARGET_REG_BITS
|
2154 | c896fe29 | bellard | { INDEX_op_qemu_ld8u, { "r", "L" } }, |
2155 | c896fe29 | bellard | { INDEX_op_qemu_ld8s, { "r", "L" } }, |
2156 | c896fe29 | bellard | { INDEX_op_qemu_ld16u, { "r", "L" } }, |
2157 | c896fe29 | bellard | { INDEX_op_qemu_ld16s, { "r", "L" } }, |
2158 | 86feb1c8 | Richard Henderson | { INDEX_op_qemu_ld32, { "r", "L" } }, |
2159 | c896fe29 | bellard | { INDEX_op_qemu_ld64, { "r", "r", "L" } }, |
2160 | c896fe29 | bellard | |
2161 | c896fe29 | bellard | { INDEX_op_qemu_st8, { "cb", "L" } }, |
2162 | c896fe29 | bellard | { INDEX_op_qemu_st16, { "L", "L" } }, |
2163 | c896fe29 | bellard | { INDEX_op_qemu_st32, { "L", "L" } }, |
2164 | c896fe29 | bellard | { INDEX_op_qemu_st64, { "L", "L", "L" } }, |
2165 | c896fe29 | bellard | #else
|
2166 | c896fe29 | bellard | { INDEX_op_qemu_ld8u, { "r", "L", "L" } }, |
2167 | c896fe29 | bellard | { INDEX_op_qemu_ld8s, { "r", "L", "L" } }, |
2168 | c896fe29 | bellard | { INDEX_op_qemu_ld16u, { "r", "L", "L" } }, |
2169 | c896fe29 | bellard | { INDEX_op_qemu_ld16s, { "r", "L", "L" } }, |
2170 | 86feb1c8 | Richard Henderson | { INDEX_op_qemu_ld32, { "r", "L", "L" } }, |
2171 | c896fe29 | bellard | { INDEX_op_qemu_ld64, { "r", "r", "L", "L" } }, |
2172 | c896fe29 | bellard | |
2173 | c896fe29 | bellard | { INDEX_op_qemu_st8, { "cb", "L", "L" } }, |
2174 | c896fe29 | bellard | { INDEX_op_qemu_st16, { "L", "L", "L" } }, |
2175 | c896fe29 | bellard | { INDEX_op_qemu_st32, { "L", "L", "L" } }, |
2176 | c896fe29 | bellard | { INDEX_op_qemu_st64, { "L", "L", "L", "L" } }, |
2177 | c896fe29 | bellard | #endif
|
2178 | c896fe29 | bellard | { -1 },
|
2179 | c896fe29 | bellard | }; |
2180 | c896fe29 | bellard | |
2181 | b03cce8e | bellard | static int tcg_target_callee_save_regs[] = { |
2182 | 5d8a4f8f | Richard Henderson | #if TCG_TARGET_REG_BITS == 64 |
2183 | 5d8a4f8f | Richard Henderson | TCG_REG_RBP, |
2184 | 5d8a4f8f | Richard Henderson | TCG_REG_RBX, |
2185 | 8d918718 | Stefan Weil | #if defined(_WIN64)
|
2186 | 8d918718 | Stefan Weil | TCG_REG_RDI, |
2187 | 8d918718 | Stefan Weil | TCG_REG_RSI, |
2188 | 8d918718 | Stefan Weil | #endif
|
2189 | 5d8a4f8f | Richard Henderson | TCG_REG_R12, |
2190 | 5d8a4f8f | Richard Henderson | TCG_REG_R13, |
2191 | cea5f9a2 | Blue Swirl | TCG_REG_R14, /* Currently used for the global env. */
|
2192 | 5d8a4f8f | Richard Henderson | TCG_REG_R15, |
2193 | 5d8a4f8f | Richard Henderson | #else
|
2194 | cea5f9a2 | Blue Swirl | TCG_REG_EBP, /* Currently used for the global env. */
|
2195 | b03cce8e | bellard | TCG_REG_EBX, |
2196 | b03cce8e | bellard | TCG_REG_ESI, |
2197 | b03cce8e | bellard | TCG_REG_EDI, |
2198 | 5d8a4f8f | Richard Henderson | #endif
|
2199 | b03cce8e | bellard | }; |
2200 | b03cce8e | bellard | |
2201 | 813da627 | Richard Henderson | /* Compute frame size via macros, to share between tcg_target_qemu_prologue
|
2202 | 813da627 | Richard Henderson | and tcg_register_jit. */
|
2203 | 813da627 | Richard Henderson | |
2204 | 813da627 | Richard Henderson | #define PUSH_SIZE \
|
2205 | 813da627 | Richard Henderson | ((1 + ARRAY_SIZE(tcg_target_callee_save_regs)) \
|
2206 | 813da627 | Richard Henderson | * (TCG_TARGET_REG_BITS / 8))
|
2207 | 813da627 | Richard Henderson | |
2208 | 813da627 | Richard Henderson | #define FRAME_SIZE \
|
2209 | 813da627 | Richard Henderson | ((PUSH_SIZE \ |
2210 | 813da627 | Richard Henderson | + TCG_STATIC_CALL_ARGS_SIZE \ |
2211 | 813da627 | Richard Henderson | + CPU_TEMP_BUF_NLONGS * sizeof(long) \ |
2212 | 813da627 | Richard Henderson | + TCG_TARGET_STACK_ALIGN - 1) \
|
2213 | 813da627 | Richard Henderson | & ~(TCG_TARGET_STACK_ALIGN - 1))
|
2214 | 813da627 | Richard Henderson | |
2215 | b03cce8e | bellard | /* Generate global QEMU prologue and epilogue code */
|
2216 | e4d58b41 | Richard Henderson | static void tcg_target_qemu_prologue(TCGContext *s) |
2217 | b03cce8e | bellard | { |
2218 | 813da627 | Richard Henderson | int i, stack_addend;
|
2219 | 78686523 | Richard Henderson | |
2220 | b03cce8e | bellard | /* TB prologue */
|
2221 | 5d8a4f8f | Richard Henderson | |
2222 | ac0275dc | Blue Swirl | /* Reserve some stack space, also for TCG temps. */
|
2223 | 813da627 | Richard Henderson | stack_addend = FRAME_SIZE - PUSH_SIZE; |
2224 | ac0275dc | Blue Swirl | tcg_set_frame(s, TCG_REG_CALL_STACK, TCG_STATIC_CALL_ARGS_SIZE, |
2225 | ac0275dc | Blue Swirl | CPU_TEMP_BUF_NLONGS * sizeof(long)); |
2226 | ac0275dc | Blue Swirl | |
2227 | ac0275dc | Blue Swirl | /* Save all callee saved registers. */
|
2228 | ac0275dc | Blue Swirl | for (i = 0; i < ARRAY_SIZE(tcg_target_callee_save_regs); i++) { |
2229 | ac0275dc | Blue Swirl | tcg_out_push(s, tcg_target_callee_save_regs[i]); |
2230 | ac0275dc | Blue Swirl | } |
2231 | ac0275dc | Blue Swirl | |
2232 | 6a18ae2d | Blue Swirl | #if TCG_TARGET_REG_BITS == 32 |
2233 | 6a18ae2d | Blue Swirl | tcg_out_ld(s, TCG_TYPE_PTR, TCG_AREG0, TCG_REG_ESP, |
2234 | 6a18ae2d | Blue Swirl | (ARRAY_SIZE(tcg_target_callee_save_regs) + 1) * 4); |
2235 | b18212c6 | Stefan Weil | tcg_out_addi(s, TCG_REG_ESP, -stack_addend); |
2236 | b18212c6 | Stefan Weil | /* jmp *tb. */
|
2237 | b18212c6 | Stefan Weil | tcg_out_modrm_offset(s, OPC_GRP5, EXT5_JMPN_Ev, TCG_REG_ESP, |
2238 | b18212c6 | Stefan Weil | (ARRAY_SIZE(tcg_target_callee_save_regs) + 2) * 4 |
2239 | b18212c6 | Stefan Weil | + stack_addend); |
2240 | 6a18ae2d | Blue Swirl | #else
|
2241 | cea5f9a2 | Blue Swirl | tcg_out_mov(s, TCG_TYPE_PTR, TCG_AREG0, tcg_target_call_iarg_regs[0]);
|
2242 | 6a18ae2d | Blue Swirl | tcg_out_addi(s, TCG_REG_ESP, -stack_addend); |
2243 | 5d8a4f8f | Richard Henderson | /* jmp *tb. */
|
2244 | cea5f9a2 | Blue Swirl | tcg_out_modrm(s, OPC_GRP5, EXT5_JMPN_Ev, tcg_target_call_iarg_regs[1]);
|
2245 | b18212c6 | Stefan Weil | #endif
|
2246 | 78686523 | Richard Henderson | |
2247 | b03cce8e | bellard | /* TB epilogue */
|
2248 | b03cce8e | bellard | tb_ret_addr = s->code_ptr; |
2249 | 5d8a4f8f | Richard Henderson | |
2250 | e83c80f7 | Blue Swirl | tcg_out_addi(s, TCG_REG_CALL_STACK, stack_addend); |
2251 | 5d8a4f8f | Richard Henderson | |
2252 | 5d8a4f8f | Richard Henderson | for (i = ARRAY_SIZE(tcg_target_callee_save_regs) - 1; i >= 0; i--) { |
2253 | b03cce8e | bellard | tcg_out_pop(s, tcg_target_callee_save_regs[i]); |
2254 | b03cce8e | bellard | } |
2255 | 5d8a4f8f | Richard Henderson | tcg_out_opc(s, OPC_RET, 0, 0, 0); |
2256 | 44b37ace | Richard Henderson | |
2257 | 44b37ace | Richard Henderson | #if !defined(CONFIG_SOFTMMU)
|
2258 | 44b37ace | Richard Henderson | /* Try to set up a segment register to point to GUEST_BASE. */
|
2259 | 44b37ace | Richard Henderson | if (GUEST_BASE) {
|
2260 | 44b37ace | Richard Henderson | setup_guest_base_seg(); |
2261 | 44b37ace | Richard Henderson | } |
2262 | 44b37ace | Richard Henderson | #endif
|
2263 | b03cce8e | bellard | } |
2264 | b03cce8e | bellard | |
2265 | e4d58b41 | Richard Henderson | static void tcg_target_init(TCGContext *s) |
2266 | c896fe29 | bellard | { |
2267 | 76a347e1 | Richard Henderson | /* For 32-bit, 99% certainty that we're running on hardware that supports
|
2268 | 76a347e1 | Richard Henderson | cmov, but we still need to check. In case cmov is not available, we'll
|
2269 | 76a347e1 | Richard Henderson | use a small forward branch. */
|
2270 | 76a347e1 | Richard Henderson | #ifndef have_cmov
|
2271 | 76a347e1 | Richard Henderson | { |
2272 | 76a347e1 | Richard Henderson | unsigned a, b, c, d;
|
2273 | 76a347e1 | Richard Henderson | have_cmov = (__get_cpuid(1, &a, &b, &c, &d) && (d & bit_CMOV));
|
2274 | 76a347e1 | Richard Henderson | } |
2275 | 76a347e1 | Richard Henderson | #endif
|
2276 | 76a347e1 | Richard Henderson | |
2277 | 20cb400d | Paul Brook | #if !defined(CONFIG_USER_ONLY)
|
2278 | c896fe29 | bellard | /* fail safe */
|
2279 | c896fe29 | bellard | if ((1 << CPU_TLB_ENTRY_BITS) != sizeof(CPUTLBEntry)) |
2280 | c896fe29 | bellard | tcg_abort(); |
2281 | 20cb400d | Paul Brook | #endif
|
2282 | c896fe29 | bellard | |
2283 | 5d8a4f8f | Richard Henderson | if (TCG_TARGET_REG_BITS == 64) { |
2284 | 5d8a4f8f | Richard Henderson | tcg_regset_set32(tcg_target_available_regs[TCG_TYPE_I32], 0, 0xffff); |
2285 | 5d8a4f8f | Richard Henderson | tcg_regset_set32(tcg_target_available_regs[TCG_TYPE_I64], 0, 0xffff); |
2286 | 5d8a4f8f | Richard Henderson | } else {
|
2287 | 5d8a4f8f | Richard Henderson | tcg_regset_set32(tcg_target_available_regs[TCG_TYPE_I32], 0, 0xff); |
2288 | 5d8a4f8f | Richard Henderson | } |
2289 | 4ab50ccf | Richard Henderson | |
2290 | 4ab50ccf | Richard Henderson | tcg_regset_clear(tcg_target_call_clobber_regs); |
2291 | 4ab50ccf | Richard Henderson | tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_EAX); |
2292 | 4ab50ccf | Richard Henderson | tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_EDX); |
2293 | 4ab50ccf | Richard Henderson | tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_ECX); |
2294 | 5d8a4f8f | Richard Henderson | if (TCG_TARGET_REG_BITS == 64) { |
2295 | 8d918718 | Stefan Weil | #if !defined(_WIN64)
|
2296 | 5d8a4f8f | Richard Henderson | tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_RDI); |
2297 | 5d8a4f8f | Richard Henderson | tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_RSI); |
2298 | 8d918718 | Stefan Weil | #endif
|
2299 | 5d8a4f8f | Richard Henderson | tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_R8); |
2300 | 5d8a4f8f | Richard Henderson | tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_R9); |
2301 | 5d8a4f8f | Richard Henderson | tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_R10); |
2302 | 5d8a4f8f | Richard Henderson | tcg_regset_set_reg(tcg_target_call_clobber_regs, TCG_REG_R11); |
2303 | 5d8a4f8f | Richard Henderson | } |
2304 | 4ab50ccf | Richard Henderson | |
2305 | c896fe29 | bellard | tcg_regset_clear(s->reserved_regs); |
2306 | e83c80f7 | Blue Swirl | tcg_regset_set_reg(s->reserved_regs, TCG_REG_CALL_STACK); |
2307 | c896fe29 | bellard | |
2308 | c896fe29 | bellard | tcg_add_target_add_op_defs(x86_op_defs); |
2309 | c896fe29 | bellard | } |
2310 | 813da627 | Richard Henderson | |
2311 | 813da627 | Richard Henderson | typedef struct { |
2312 | 813da627 | Richard Henderson | uint32_t len __attribute__((aligned((sizeof(void *))))); |
2313 | 813da627 | Richard Henderson | uint32_t id; |
2314 | 813da627 | Richard Henderson | uint8_t version; |
2315 | 813da627 | Richard Henderson | char augmentation[1]; |
2316 | 813da627 | Richard Henderson | uint8_t code_align; |
2317 | 813da627 | Richard Henderson | uint8_t data_align; |
2318 | 813da627 | Richard Henderson | uint8_t return_column; |
2319 | 813da627 | Richard Henderson | } DebugFrameCIE; |
2320 | 813da627 | Richard Henderson | |
2321 | 813da627 | Richard Henderson | typedef struct { |
2322 | 813da627 | Richard Henderson | uint32_t len __attribute__((aligned((sizeof(void *))))); |
2323 | 813da627 | Richard Henderson | uint32_t cie_offset; |
2324 | 813da627 | Richard Henderson | tcg_target_long func_start __attribute__((packed)); |
2325 | 813da627 | Richard Henderson | tcg_target_long func_len __attribute__((packed)); |
2326 | 813da627 | Richard Henderson | uint8_t def_cfa[4];
|
2327 | 813da627 | Richard Henderson | uint8_t reg_ofs[14];
|
2328 | 813da627 | Richard Henderson | } DebugFrameFDE; |
2329 | 813da627 | Richard Henderson | |
2330 | 813da627 | Richard Henderson | typedef struct { |
2331 | 813da627 | Richard Henderson | DebugFrameCIE cie; |
2332 | 813da627 | Richard Henderson | DebugFrameFDE fde; |
2333 | 813da627 | Richard Henderson | } DebugFrame; |
2334 | 813da627 | Richard Henderson | |
2335 | c170cb66 | Stefan Weil | #if !defined(__ELF__)
|
2336 | c170cb66 | Stefan Weil | /* Host machine without ELF. */
|
2337 | c170cb66 | Stefan Weil | #elif TCG_TARGET_REG_BITS == 64 |
2338 | 813da627 | Richard Henderson | #define ELF_HOST_MACHINE EM_X86_64
|
2339 | 813da627 | Richard Henderson | static DebugFrame debug_frame = {
|
2340 | 813da627 | Richard Henderson | .cie.len = sizeof(DebugFrameCIE)-4, /* length after .len member */ |
2341 | 813da627 | Richard Henderson | .cie.id = -1,
|
2342 | 813da627 | Richard Henderson | .cie.version = 1,
|
2343 | 813da627 | Richard Henderson | .cie.code_align = 1,
|
2344 | 813da627 | Richard Henderson | .cie.data_align = 0x78, /* sleb128 -8 */ |
2345 | 813da627 | Richard Henderson | .cie.return_column = 16,
|
2346 | 813da627 | Richard Henderson | |
2347 | 813da627 | Richard Henderson | .fde.len = sizeof(DebugFrameFDE)-4, /* length after .len member */ |
2348 | 813da627 | Richard Henderson | .fde.def_cfa = { |
2349 | 813da627 | Richard Henderson | 12, 7, /* DW_CFA_def_cfa %rsp, ... */ |
2350 | 813da627 | Richard Henderson | (FRAME_SIZE & 0x7f) | 0x80, /* ... uleb128 FRAME_SIZE */ |
2351 | 813da627 | Richard Henderson | (FRAME_SIZE >> 7)
|
2352 | 813da627 | Richard Henderson | }, |
2353 | 813da627 | Richard Henderson | .fde.reg_ofs = { |
2354 | 813da627 | Richard Henderson | 0x90, 1, /* DW_CFA_offset, %rip, -8 */ |
2355 | 813da627 | Richard Henderson | /* The following ordering must match tcg_target_callee_save_regs. */
|
2356 | 813da627 | Richard Henderson | 0x86, 2, /* DW_CFA_offset, %rbp, -16 */ |
2357 | 813da627 | Richard Henderson | 0x83, 3, /* DW_CFA_offset, %rbx, -24 */ |
2358 | 813da627 | Richard Henderson | 0x8c, 4, /* DW_CFA_offset, %r12, -32 */ |
2359 | 813da627 | Richard Henderson | 0x8d, 5, /* DW_CFA_offset, %r13, -40 */ |
2360 | 813da627 | Richard Henderson | 0x8e, 6, /* DW_CFA_offset, %r14, -48 */ |
2361 | 813da627 | Richard Henderson | 0x8f, 7, /* DW_CFA_offset, %r15, -56 */ |
2362 | 813da627 | Richard Henderson | } |
2363 | 813da627 | Richard Henderson | }; |
2364 | 813da627 | Richard Henderson | #else
|
2365 | 813da627 | Richard Henderson | #define ELF_HOST_MACHINE EM_386
|
2366 | 813da627 | Richard Henderson | static DebugFrame debug_frame = {
|
2367 | 813da627 | Richard Henderson | .cie.len = sizeof(DebugFrameCIE)-4, /* length after .len member */ |
2368 | 813da627 | Richard Henderson | .cie.id = -1,
|
2369 | 813da627 | Richard Henderson | .cie.version = 1,
|
2370 | 813da627 | Richard Henderson | .cie.code_align = 1,
|
2371 | 813da627 | Richard Henderson | .cie.data_align = 0x7c, /* sleb128 -4 */ |
2372 | 813da627 | Richard Henderson | .cie.return_column = 8,
|
2373 | 813da627 | Richard Henderson | |
2374 | 813da627 | Richard Henderson | .fde.len = sizeof(DebugFrameFDE)-4, /* length after .len member */ |
2375 | 813da627 | Richard Henderson | .fde.def_cfa = { |
2376 | 813da627 | Richard Henderson | 12, 4, /* DW_CFA_def_cfa %esp, ... */ |
2377 | 813da627 | Richard Henderson | (FRAME_SIZE & 0x7f) | 0x80, /* ... uleb128 FRAME_SIZE */ |
2378 | 813da627 | Richard Henderson | (FRAME_SIZE >> 7)
|
2379 | 813da627 | Richard Henderson | }, |
2380 | 813da627 | Richard Henderson | .fde.reg_ofs = { |
2381 | 813da627 | Richard Henderson | 0x88, 1, /* DW_CFA_offset, %eip, -4 */ |
2382 | 813da627 | Richard Henderson | /* The following ordering must match tcg_target_callee_save_regs. */
|
2383 | 813da627 | Richard Henderson | 0x85, 2, /* DW_CFA_offset, %ebp, -8 */ |
2384 | 813da627 | Richard Henderson | 0x83, 3, /* DW_CFA_offset, %ebx, -12 */ |
2385 | 813da627 | Richard Henderson | 0x86, 4, /* DW_CFA_offset, %esi, -16 */ |
2386 | 813da627 | Richard Henderson | 0x87, 5, /* DW_CFA_offset, %edi, -20 */ |
2387 | 813da627 | Richard Henderson | } |
2388 | 813da627 | Richard Henderson | }; |
2389 | 813da627 | Richard Henderson | #endif
|
2390 | 813da627 | Richard Henderson | |
2391 | c170cb66 | Stefan Weil | #if defined(ELF_HOST_MACHINE)
|
2392 | 813da627 | Richard Henderson | void tcg_register_jit(void *buf, size_t buf_size) |
2393 | 813da627 | Richard Henderson | { |
2394 | 813da627 | Richard Henderson | /* We're expecting a 2 byte uleb128 encoded value. */
|
2395 | 813da627 | Richard Henderson | assert(FRAME_SIZE >> 14 == 0); |
2396 | 813da627 | Richard Henderson | |
2397 | 813da627 | Richard Henderson | debug_frame.fde.func_start = (tcg_target_long) buf; |
2398 | 813da627 | Richard Henderson | debug_frame.fde.func_len = buf_size; |
2399 | 813da627 | Richard Henderson | |
2400 | 813da627 | Richard Henderson | tcg_register_jit_int(buf, buf_size, &debug_frame, sizeof(debug_frame));
|
2401 | 813da627 | Richard Henderson | } |
2402 | c170cb66 | Stefan Weil | #endif |