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1 | 6e64da3c | Guan Xuetao | /*
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2 | 6e64da3c | Guan Xuetao | * UniCore32 virtual CPU header
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3 | 6e64da3c | Guan Xuetao | *
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4 | 6e64da3c | Guan Xuetao | * Copyright (C) 2010-2011 GUAN Xue-tao
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5 | 6e64da3c | Guan Xuetao | *
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6 | 6e64da3c | Guan Xuetao | * This program is free software; you can redistribute it and/or modify
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7 | 6e64da3c | Guan Xuetao | * it under the terms of the GNU General Public License version 2 as
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8 | 6e64da3c | Guan Xuetao | * published by the Free Software Foundation.
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9 | 6e64da3c | Guan Xuetao | */
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10 | 6e64da3c | Guan Xuetao | #ifndef __CPU_UC32_H__
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11 | 6e64da3c | Guan Xuetao | #define __CPU_UC32_H__
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12 | 6e64da3c | Guan Xuetao | |
13 | 6e64da3c | Guan Xuetao | #define TARGET_LONG_BITS 32 |
14 | 6e64da3c | Guan Xuetao | #define TARGET_PAGE_BITS 12 |
15 | 6e64da3c | Guan Xuetao | |
16 | 6e64da3c | Guan Xuetao | #define TARGET_PHYS_ADDR_SPACE_BITS 32 |
17 | 6e64da3c | Guan Xuetao | #define TARGET_VIRT_ADDR_SPACE_BITS 32 |
18 | 6e64da3c | Guan Xuetao | |
19 | 6e64da3c | Guan Xuetao | #define ELF_MACHINE EM_UNICORE32
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20 | 6e64da3c | Guan Xuetao | |
21 | 6e64da3c | Guan Xuetao | #define CPUState struct CPUState_UniCore32 |
22 | 6e64da3c | Guan Xuetao | |
23 | 6e64da3c | Guan Xuetao | #include "cpu-defs.h" |
24 | 6e64da3c | Guan Xuetao | #include "softfloat.h" |
25 | 6e64da3c | Guan Xuetao | |
26 | 6e64da3c | Guan Xuetao | #define NB_MMU_MODES 2 |
27 | 6e64da3c | Guan Xuetao | |
28 | 6e64da3c | Guan Xuetao | typedef struct CPUState_UniCore32 { |
29 | 6e64da3c | Guan Xuetao | /* Regs for current mode. */
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30 | 6e64da3c | Guan Xuetao | uint32_t regs[32];
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31 | 6e64da3c | Guan Xuetao | /* Frequently accessed ASR bits are stored separately for efficiently.
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32 | 6e64da3c | Guan Xuetao | This contains all the other bits. Use asr_{read,write} to access
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33 | 6e64da3c | Guan Xuetao | the whole ASR. */
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34 | 6e64da3c | Guan Xuetao | uint32_t uncached_asr; |
35 | 6e64da3c | Guan Xuetao | uint32_t bsr; |
36 | 6e64da3c | Guan Xuetao | |
37 | 6e64da3c | Guan Xuetao | /* Banked registers. */
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38 | 6e64da3c | Guan Xuetao | uint32_t banked_bsr[6];
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39 | 6e64da3c | Guan Xuetao | uint32_t banked_r29[6];
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40 | 6e64da3c | Guan Xuetao | uint32_t banked_r30[6];
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41 | 6e64da3c | Guan Xuetao | |
42 | 6e64da3c | Guan Xuetao | /* asr flag cache for faster execution */
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43 | 6e64da3c | Guan Xuetao | uint32_t CF; /* 0 or 1 */
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44 | 6e64da3c | Guan Xuetao | uint32_t VF; /* V is the bit 31. All other bits are undefined */
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45 | 6e64da3c | Guan Xuetao | uint32_t NF; /* N is bit 31. All other bits are undefined. */
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46 | 6e64da3c | Guan Xuetao | uint32_t ZF; /* Z set if zero. */
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47 | 6e64da3c | Guan Xuetao | |
48 | 6e64da3c | Guan Xuetao | /* System control coprocessor (cp0) */
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49 | 6e64da3c | Guan Xuetao | struct {
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50 | 6e64da3c | Guan Xuetao | uint32_t c0_cpuid; |
51 | 6e64da3c | Guan Xuetao | uint32_t c0_cachetype; |
52 | 6e64da3c | Guan Xuetao | uint32_t c1_sys; /* System control register. */
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53 | 6e64da3c | Guan Xuetao | uint32_t c2_base; /* MMU translation table base. */
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54 | 6e64da3c | Guan Xuetao | uint32_t c3_faultstatus; /* Fault status registers. */
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55 | 6e64da3c | Guan Xuetao | uint32_t c4_faultaddr; /* Fault address registers. */
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56 | 6e64da3c | Guan Xuetao | uint32_t c5_cacheop; /* Cache operation registers. */
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57 | 6e64da3c | Guan Xuetao | uint32_t c6_tlbop; /* TLB operation registers. */
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58 | 6e64da3c | Guan Xuetao | } cp0; |
59 | 6e64da3c | Guan Xuetao | |
60 | 6e64da3c | Guan Xuetao | /* UniCore-F64 coprocessor state. */
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61 | 6e64da3c | Guan Xuetao | struct {
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62 | 6e64da3c | Guan Xuetao | float64 regs[16];
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63 | 6e64da3c | Guan Xuetao | uint32_t xregs[32];
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64 | 6e64da3c | Guan Xuetao | float_status fp_status; |
65 | 6e64da3c | Guan Xuetao | } ucf64; |
66 | 6e64da3c | Guan Xuetao | |
67 | 6e64da3c | Guan Xuetao | CPU_COMMON |
68 | 6e64da3c | Guan Xuetao | |
69 | 6e64da3c | Guan Xuetao | /* Internal CPU feature flags. */
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70 | 6e64da3c | Guan Xuetao | uint32_t features; |
71 | 6e64da3c | Guan Xuetao | |
72 | 6e64da3c | Guan Xuetao | } CPUState_UniCore32; |
73 | 6e64da3c | Guan Xuetao | |
74 | 6e64da3c | Guan Xuetao | #define ASR_M (0x1f) |
75 | 6e64da3c | Guan Xuetao | #define ASR_MODE_USER (0x10) |
76 | 6e64da3c | Guan Xuetao | #define ASR_MODE_INTR (0x12) |
77 | 6e64da3c | Guan Xuetao | #define ASR_MODE_PRIV (0x13) |
78 | 6e64da3c | Guan Xuetao | #define ASR_MODE_TRAP (0x17) |
79 | 6e64da3c | Guan Xuetao | #define ASR_MODE_EXTN (0x1b) |
80 | 6e64da3c | Guan Xuetao | #define ASR_MODE_SUSR (0x1f) |
81 | 6e64da3c | Guan Xuetao | #define ASR_I (1 << 7) |
82 | 6e64da3c | Guan Xuetao | #define ASR_V (1 << 28) |
83 | 6e64da3c | Guan Xuetao | #define ASR_C (1 << 29) |
84 | 6e64da3c | Guan Xuetao | #define ASR_Z (1 << 30) |
85 | 6e64da3c | Guan Xuetao | #define ASR_N (1 << 31) |
86 | 6e64da3c | Guan Xuetao | #define ASR_NZCV (ASR_N | ASR_Z | ASR_C | ASR_V)
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87 | 6e64da3c | Guan Xuetao | #define ASR_RESERVED (~(ASR_M | ASR_I | ASR_NZCV))
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88 | 6e64da3c | Guan Xuetao | |
89 | 6e64da3c | Guan Xuetao | #define UC32_EXCP_PRIV (ASR_MODE_PRIV)
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90 | 6e64da3c | Guan Xuetao | #define UC32_EXCP_TRAP (ASR_MODE_TRAP)
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91 | 6e64da3c | Guan Xuetao | |
92 | 6e64da3c | Guan Xuetao | /* Return the current ASR value. */
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93 | 6e64da3c | Guan Xuetao | target_ulong cpu_asr_read(CPUState *env1); |
94 | 6e64da3c | Guan Xuetao | /* Set the ASR. Note that some bits of mask must be all-set or all-clear. */
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95 | 6e64da3c | Guan Xuetao | void cpu_asr_write(CPUState *env1, target_ulong val, target_ulong mask);
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96 | 6e64da3c | Guan Xuetao | |
97 | 6e64da3c | Guan Xuetao | /* UniCore-F64 system registers. */
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98 | 6e64da3c | Guan Xuetao | #define UC32_UCF64_FPSCR (31) |
99 | 6e64da3c | Guan Xuetao | #define UCF64_FPSCR_MASK (0x27ffffff) |
100 | 6e64da3c | Guan Xuetao | #define UCF64_FPSCR_RND_MASK (0x7) |
101 | 6e64da3c | Guan Xuetao | #define UCF64_FPSCR_RND(r) (((r) >> 0) & UCF64_FPSCR_RND_MASK) |
102 | 6e64da3c | Guan Xuetao | #define UCF64_FPSCR_TRAPEN_MASK (0x7f) |
103 | 6e64da3c | Guan Xuetao | #define UCF64_FPSCR_TRAPEN(r) (((r) >> 10) & UCF64_FPSCR_TRAPEN_MASK) |
104 | 6e64da3c | Guan Xuetao | #define UCF64_FPSCR_FLAG_MASK (0x3ff) |
105 | 6e64da3c | Guan Xuetao | #define UCF64_FPSCR_FLAG(r) (((r) >> 17) & UCF64_FPSCR_FLAG_MASK) |
106 | 6e64da3c | Guan Xuetao | #define UCF64_FPSCR_FLAG_ZERO (1 << 17) |
107 | 6e64da3c | Guan Xuetao | #define UCF64_FPSCR_FLAG_INFINITY (1 << 18) |
108 | 6e64da3c | Guan Xuetao | #define UCF64_FPSCR_FLAG_INVALID (1 << 19) |
109 | 6e64da3c | Guan Xuetao | #define UCF64_FPSCR_FLAG_UNDERFLOW (1 << 20) |
110 | 6e64da3c | Guan Xuetao | #define UCF64_FPSCR_FLAG_OVERFLOW (1 << 21) |
111 | 6e64da3c | Guan Xuetao | #define UCF64_FPSCR_FLAG_INEXACT (1 << 22) |
112 | 6e64da3c | Guan Xuetao | #define UCF64_FPSCR_FLAG_HUGEINT (1 << 23) |
113 | 6e64da3c | Guan Xuetao | #define UCF64_FPSCR_FLAG_DENORMAL (1 << 24) |
114 | 6e64da3c | Guan Xuetao | #define UCF64_FPSCR_FLAG_UNIMP (1 << 25) |
115 | 6e64da3c | Guan Xuetao | #define UCF64_FPSCR_FLAG_DIVZERO (1 << 26) |
116 | 6e64da3c | Guan Xuetao | |
117 | 6e64da3c | Guan Xuetao | #define UC32_HWCAP_CMOV 4 /* 1 << 2 */ |
118 | 6e64da3c | Guan Xuetao | #define UC32_HWCAP_UCF64 8 /* 1 << 3 */ |
119 | 6e64da3c | Guan Xuetao | |
120 | 6e64da3c | Guan Xuetao | #define UC32_CPUID(env) (env->cp0.c0_cpuid)
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121 | 6e64da3c | Guan Xuetao | #define UC32_CPUID_UCV2 0x40010863 |
122 | 6e64da3c | Guan Xuetao | #define UC32_CPUID_ANY 0xffffffff |
123 | 6e64da3c | Guan Xuetao | |
124 | 6e64da3c | Guan Xuetao | #define cpu_init uc32_cpu_init
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125 | 6e64da3c | Guan Xuetao | #define cpu_exec uc32_cpu_exec
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126 | 6e64da3c | Guan Xuetao | #define cpu_signal_handler uc32_cpu_signal_handler
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127 | 6e64da3c | Guan Xuetao | #define cpu_handle_mmu_fault uc32_cpu_handle_mmu_fault
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128 | 6e64da3c | Guan Xuetao | |
129 | 6e64da3c | Guan Xuetao | CPUState *uc32_cpu_init(const char *cpu_model); |
130 | 6e64da3c | Guan Xuetao | int uc32_cpu_exec(CPUState *s);
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131 | 6e64da3c | Guan Xuetao | int uc32_cpu_signal_handler(int host_signum, void *pinfo, void *puc); |
132 | 6e64da3c | Guan Xuetao | int uc32_cpu_handle_mmu_fault(CPUState *env, target_ulong address, int rw, |
133 | 6e64da3c | Guan Xuetao | int mmu_idx, int is_softmuu); |
134 | 6e64da3c | Guan Xuetao | |
135 | 6e64da3c | Guan Xuetao | #define CPU_SAVE_VERSION 2 |
136 | 6e64da3c | Guan Xuetao | |
137 | 6e64da3c | Guan Xuetao | /* MMU modes definitions */
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138 | 6e64da3c | Guan Xuetao | #define MMU_MODE0_SUFFIX _kernel
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139 | 6e64da3c | Guan Xuetao | #define MMU_MODE1_SUFFIX _user
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140 | 6e64da3c | Guan Xuetao | #define MMU_USER_IDX 1 |
141 | 6e64da3c | Guan Xuetao | static inline int cpu_mmu_index(CPUState *env) |
142 | 6e64da3c | Guan Xuetao | { |
143 | 6e64da3c | Guan Xuetao | return (env->uncached_asr & ASR_M) == ASR_MODE_USER ? 1 : 0; |
144 | 6e64da3c | Guan Xuetao | } |
145 | 6e64da3c | Guan Xuetao | |
146 | 6e64da3c | Guan Xuetao | static inline void cpu_clone_regs(CPUState *env, target_ulong newsp) |
147 | 6e64da3c | Guan Xuetao | { |
148 | 6e64da3c | Guan Xuetao | if (newsp) {
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149 | 6e64da3c | Guan Xuetao | env->regs[29] = newsp;
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150 | 6e64da3c | Guan Xuetao | } |
151 | 6e64da3c | Guan Xuetao | env->regs[0] = 0; |
152 | 6e64da3c | Guan Xuetao | } |
153 | 6e64da3c | Guan Xuetao | |
154 | 6e64da3c | Guan Xuetao | static inline void cpu_set_tls(CPUState *env, target_ulong newtls) |
155 | 6e64da3c | Guan Xuetao | { |
156 | 6e64da3c | Guan Xuetao | env->regs[16] = newtls;
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157 | 6e64da3c | Guan Xuetao | } |
158 | 6e64da3c | Guan Xuetao | |
159 | 6e64da3c | Guan Xuetao | #include "cpu-all.h" |
160 | 6e64da3c | Guan Xuetao | #include "exec-all.h" |
161 | 6e64da3c | Guan Xuetao | |
162 | 6e64da3c | Guan Xuetao | static inline void cpu_pc_from_tb(CPUState *env, TranslationBlock *tb) |
163 | 6e64da3c | Guan Xuetao | { |
164 | 6e64da3c | Guan Xuetao | env->regs[31] = tb->pc;
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165 | 6e64da3c | Guan Xuetao | } |
166 | 6e64da3c | Guan Xuetao | |
167 | 6e64da3c | Guan Xuetao | static inline void cpu_get_tb_cpu_state(CPUState *env, target_ulong *pc, |
168 | 6e64da3c | Guan Xuetao | target_ulong *cs_base, int *flags)
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169 | 6e64da3c | Guan Xuetao | { |
170 | 6e64da3c | Guan Xuetao | *pc = env->regs[31];
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171 | 6e64da3c | Guan Xuetao | *cs_base = 0;
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172 | 6e64da3c | Guan Xuetao | *flags = 0;
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173 | 6e64da3c | Guan Xuetao | if ((env->uncached_asr & ASR_M) != ASR_MODE_USER) {
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174 | 6e64da3c | Guan Xuetao | *flags |= (1 << 6); |
175 | 6e64da3c | Guan Xuetao | } |
176 | 6e64da3c | Guan Xuetao | } |
177 | 6e64da3c | Guan Xuetao | |
178 | 6e64da3c | Guan Xuetao | void uc32_translate_init(void); |
179 | 6e64da3c | Guan Xuetao | void do_interrupt(CPUState *);
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180 | 6e64da3c | Guan Xuetao | void switch_mode(CPUState_UniCore32 *, int); |
181 | 6e64da3c | Guan Xuetao | |
182 | 6e64da3c | Guan Xuetao | #endif /* __CPU_UC32_H__ */ |