root / tcg / hppa / tcg-target.c @ 79383c9c
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/*
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* Tiny Code Generator for QEMU
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*
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* Copyright (c) 2008 Fabrice Bellard
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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static const char * const tcg_target_reg_names[TCG_TARGET_NB_REGS] = { |
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"%r0",
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"%r1",
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"%rp",
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"%r3",
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"%r4",
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"%r5",
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"%r6",
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"%r7",
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"%r8",
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"%r9",
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"%r10",
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"%r11",
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"%r12",
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"%r13",
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"%r14",
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"%r15",
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"%r16",
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"%r17",
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"%r18",
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"%r19",
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"%r20",
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"%r21",
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"%r22",
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"%r23",
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"%r24",
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"%r25",
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"%r26",
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"%dp",
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"%ret0",
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"%ret1",
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"%sp",
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"%r31",
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}; |
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static const int tcg_target_reg_alloc_order[] = { |
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TCG_REG_R4, |
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TCG_REG_R5, |
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TCG_REG_R6, |
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TCG_REG_R7, |
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TCG_REG_R8, |
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TCG_REG_R9, |
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TCG_REG_R10, |
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TCG_REG_R11, |
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TCG_REG_R12, |
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TCG_REG_R13, |
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|
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TCG_REG_R17, |
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TCG_REG_R14, |
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TCG_REG_R15, |
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TCG_REG_R16, |
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}; |
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|
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static const int tcg_target_call_iarg_regs[4] = { |
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TCG_REG_R26, |
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TCG_REG_R25, |
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TCG_REG_R24, |
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TCG_REG_R23, |
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}; |
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|
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static const int tcg_target_call_oarg_regs[2] = { |
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TCG_REG_RET0, |
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TCG_REG_RET1, |
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}; |
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|
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static void patch_reloc(uint8_t *code_ptr, int type, |
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tcg_target_long value, tcg_target_long addend) |
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{ |
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switch (type) {
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case R_PARISC_PCREL17F:
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hppa_patch17f((uint32_t *)code_ptr, value, addend); |
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break;
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default:
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tcg_abort(); |
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} |
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} |
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|
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/* maximum number of register used for input function arguments */
|
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static inline int tcg_target_get_call_iarg_regs_count(int flags) |
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{ |
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return 4; |
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} |
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|
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/* parse target specific constraints */
|
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int target_parse_constraint(TCGArgConstraint *ct, const char **pct_str) |
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{ |
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const char *ct_str; |
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|
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ct_str = *pct_str; |
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switch (ct_str[0]) { |
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case 'r': |
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ct->ct |= TCG_CT_REG; |
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tcg_regset_set32(ct->u.regs, 0, 0xffffffff); |
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break;
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case 'L': /* qemu_ld/st constraint */ |
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ct->ct |= TCG_CT_REG; |
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tcg_regset_set32(ct->u.regs, 0, 0xffffffff); |
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tcg_regset_reset_reg(ct->u.regs, TCG_REG_R26); |
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tcg_regset_reset_reg(ct->u.regs, TCG_REG_R25); |
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tcg_regset_reset_reg(ct->u.regs, TCG_REG_R24); |
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tcg_regset_reset_reg(ct->u.regs, TCG_REG_R23); |
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break;
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default:
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return -1; |
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} |
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ct_str++; |
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*pct_str = ct_str; |
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return 0; |
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} |
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|
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/* test if a constant matches the constraint */
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static inline int tcg_target_const_match(tcg_target_long val, |
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const TCGArgConstraint *arg_ct)
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{ |
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int ct;
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ct = arg_ct->ct; |
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|
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/* TODO */
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return 0; |
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} |
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|
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#define INSN_OP(x) ((x) << 26) |
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#define INSN_EXT3BR(x) ((x) << 13) |
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#define INSN_EXT3SH(x) ((x) << 10) |
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#define INSN_EXT4(x) ((x) << 6) |
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#define INSN_EXT5(x) (x)
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#define INSN_EXT6(x) ((x) << 6) |
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#define INSN_EXT7(x) ((x) << 6) |
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#define INSN_EXT8A(x) ((x) << 6) |
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#define INSN_EXT8B(x) ((x) << 5) |
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#define INSN_T(x) (x)
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#define INSN_R1(x) ((x) << 16) |
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#define INSN_R2(x) ((x) << 21) |
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#define INSN_DEP_LEN(x) (32 - (x)) |
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#define INSN_SHDEP_CP(x) ((31 - (x)) << 5) |
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#define INSN_SHDEP_P(x) ((x) << 5) |
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#define INSN_COND(x) ((x) << 13) |
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|
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#define COND_NEVER 0 |
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#define COND_EQUAL 1 |
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#define COND_LT 2 |
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#define COND_LTEQ 3 |
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#define COND_LTU 4 |
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#define COND_LTUEQ 5 |
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#define COND_SV 6 |
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#define COND_OD 7 |
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|
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|
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/* Logical ADD */
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#define ARITH_ADD (INSN_OP(0x02) | INSN_EXT6(0x28)) |
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#define ARITH_AND (INSN_OP(0x02) | INSN_EXT6(0x08)) |
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#define ARITH_OR (INSN_OP(0x02) | INSN_EXT6(0x09)) |
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#define ARITH_XOR (INSN_OP(0x02) | INSN_EXT6(0x0a)) |
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#define ARITH_SUB (INSN_OP(0x02) | INSN_EXT6(0x10)) |
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|
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#define SHD (INSN_OP(0x34) | INSN_EXT3SH(2)) |
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#define VSHD (INSN_OP(0x34) | INSN_EXT3SH(0)) |
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#define DEP (INSN_OP(0x35) | INSN_EXT3SH(3)) |
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#define ZDEP (INSN_OP(0x35) | INSN_EXT3SH(2)) |
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#define ZVDEP (INSN_OP(0x35) | INSN_EXT3SH(0)) |
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#define EXTRU (INSN_OP(0x34) | INSN_EXT3SH(6)) |
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#define EXTRS (INSN_OP(0x34) | INSN_EXT3SH(7)) |
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#define VEXTRS (INSN_OP(0x34) | INSN_EXT3SH(5)) |
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|
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#define SUBI (INSN_OP(0x25)) |
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#define MTCTL (INSN_OP(0x00) | INSN_EXT8B(0xc2)) |
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|
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#define BL (INSN_OP(0x3a) | INSN_EXT3BR(0)) |
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#define BLE_SR4 (INSN_OP(0x39) | (1 << 13)) |
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#define BV (INSN_OP(0x3a) | INSN_EXT3BR(6)) |
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#define BV_N (INSN_OP(0x3a) | INSN_EXT3BR(6) | 2) |
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#define LDIL (INSN_OP(0x08)) |
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#define LDO (INSN_OP(0x0d)) |
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|
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#define LDB (INSN_OP(0x10)) |
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#define LDH (INSN_OP(0x11)) |
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#define LDW (INSN_OP(0x12)) |
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#define LDWM (INSN_OP(0x13)) |
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|
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#define STB (INSN_OP(0x18)) |
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#define STH (INSN_OP(0x19)) |
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#define STW (INSN_OP(0x1a)) |
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#define STWM (INSN_OP(0x1b)) |
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|
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#define COMBT (INSN_OP(0x20)) |
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#define COMBF (INSN_OP(0x22)) |
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|
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static int lowsignext(uint32_t val, int start, int length) |
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{ |
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return (((val << 1) & ~(~0 << length)) | |
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((val >> (length - 1)) & 1)) << start; |
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} |
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static inline void tcg_out_mov(TCGContext *s, int ret, int arg) |
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{ |
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/* PA1.1 defines COPY as OR r,0,t */
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tcg_out32(s, ARITH_OR | INSN_T(ret) | INSN_R1(arg) | INSN_R2(TCG_REG_R0)); |
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/* PA2.0 defines COPY as LDO 0(r),t
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* but hppa-dis.c is unaware of this definition */
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/* tcg_out32(s, LDO | INSN_R1(ret) | INSN_R2(arg) | reassemble_14(0)); */
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} |
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static inline void tcg_out_movi(TCGContext *s, TCGType type, |
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int ret, tcg_target_long arg)
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{ |
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if (arg == (arg & 0x1fff)) { |
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tcg_out32(s, LDO | INSN_R1(ret) | INSN_R2(TCG_REG_R0) | |
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reassemble_14(arg)); |
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} else {
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tcg_out32(s, LDIL | INSN_R2(ret) | |
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reassemble_21(lrsel((uint32_t)arg, 0)));
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if (arg & 0x7ff) |
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tcg_out32(s, LDO | INSN_R1(ret) | INSN_R2(ret) | |
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reassemble_14(rrsel((uint32_t)arg, 0)));
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} |
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} |
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|
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static inline void tcg_out_ld_raw(TCGContext *s, int ret, |
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tcg_target_long arg) |
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{ |
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tcg_out32(s, LDIL | INSN_R2(ret) | |
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reassemble_21(lrsel((uint32_t)arg, 0)));
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tcg_out32(s, LDW | INSN_R1(ret) | INSN_R2(ret) | |
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reassemble_14(rrsel((uint32_t)arg, 0)));
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} |
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|
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static inline void tcg_out_ld_ptr(TCGContext *s, int ret, |
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tcg_target_long arg) |
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{ |
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tcg_out_ld_raw(s, ret, arg); |
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} |
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|
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static inline void tcg_out_ldst(TCGContext *s, int ret, int addr, int offset, |
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int op)
|
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{ |
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if (offset == (offset & 0xfff)) |
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tcg_out32(s, op | INSN_R1(ret) | INSN_R2(addr) | |
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reassemble_14(offset)); |
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else {
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fprintf(stderr, "unimplemented %s with offset %d\n", __func__, offset);
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tcg_abort(); |
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} |
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} |
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|
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static inline void tcg_out_ld(TCGContext *s, TCGType type, int ret, |
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int arg1, tcg_target_long arg2)
|
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{ |
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fprintf(stderr, "unimplemented %s\n", __func__);
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tcg_abort(); |
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} |
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|
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static inline void tcg_out_st(TCGContext *s, TCGType type, int ret, |
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int arg1, tcg_target_long arg2)
|
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{ |
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fprintf(stderr, "unimplemented %s\n", __func__);
|
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tcg_abort(); |
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} |
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|
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static inline void tcg_out_arith(TCGContext *s, int t, int r1, int r2, int op) |
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{ |
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tcg_out32(s, op | INSN_T(t) | INSN_R1(r1) | INSN_R2(r2)); |
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} |
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|
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static inline void tcg_out_arithi(TCGContext *s, int t, int r1, |
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tcg_target_long val, int op)
|
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{ |
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tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R20, val); |
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tcg_out_arith(s, t, r1, TCG_REG_R20, op); |
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} |
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|
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static inline void tcg_out_addi(TCGContext *s, int reg, tcg_target_long val) |
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{ |
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tcg_out_arithi(s, reg, reg, val, ARITH_ADD); |
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} |
302 |
|
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static inline void tcg_out_nop(TCGContext *s) |
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{ |
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tcg_out32(s, ARITH_OR | INSN_T(TCG_REG_R0) | INSN_R1(TCG_REG_R0) | |
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INSN_R2(TCG_REG_R0)); |
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} |
308 |
|
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static inline void tcg_out_ext8s(TCGContext *s, int ret, int arg) { |
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tcg_out32(s, EXTRS | INSN_R1(ret) | INSN_R2(arg) | |
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INSN_SHDEP_P(31) | INSN_DEP_LEN(8)); |
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} |
313 |
|
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static inline void tcg_out_ext16s(TCGContext *s, int ret, int arg) { |
315 |
tcg_out32(s, EXTRS | INSN_R1(ret) | INSN_R2(arg) | |
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INSN_SHDEP_P(31) | INSN_DEP_LEN(16)); |
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} |
318 |
|
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static inline void tcg_out_bswap16(TCGContext *s, int ret, int arg) { |
320 |
if(ret != arg)
|
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tcg_out_mov(s, ret, arg); |
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tcg_out32(s, DEP | INSN_R2(ret) | INSN_R1(ret) | |
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INSN_SHDEP_CP(15) | INSN_DEP_LEN(8)); |
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tcg_out32(s, SHD | INSN_T(ret) | INSN_R1(TCG_REG_R0) | |
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INSN_R2(ret) | INSN_SHDEP_CP(8));
|
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} |
327 |
|
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static inline void tcg_out_bswap32(TCGContext *s, int ret, int arg, int temp) { |
329 |
tcg_out32(s, SHD | INSN_T(temp) | INSN_R1(arg) | |
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INSN_R2(arg) | INSN_SHDEP_CP(16));
|
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tcg_out32(s, DEP | INSN_R2(temp) | INSN_R1(temp) | |
332 |
INSN_SHDEP_CP(15) | INSN_DEP_LEN(8)); |
333 |
tcg_out32(s, SHD | INSN_T(ret) | INSN_R1(arg) | |
334 |
INSN_R2(temp) | INSN_SHDEP_CP(8));
|
335 |
} |
336 |
|
337 |
static inline void tcg_out_call(TCGContext *s, void *func) |
338 |
{ |
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uint32_t val = (uint32_t)__canonicalize_funcptr_for_compare(func); |
340 |
tcg_out32(s, LDIL | INSN_R2(TCG_REG_R20) | |
341 |
reassemble_21(lrsel(val, 0)));
|
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tcg_out32(s, BLE_SR4 | INSN_R2(TCG_REG_R20) | |
343 |
reassemble_17(rrsel(val, 0) >> 2)); |
344 |
tcg_out_mov(s, TCG_REG_RP, TCG_REG_R31); |
345 |
} |
346 |
|
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#if defined(CONFIG_SOFTMMU)
|
348 |
|
349 |
#include "../../softmmu_defs.h" |
350 |
|
351 |
static void *qemu_ld_helpers[4] = { |
352 |
__ldb_mmu, |
353 |
__ldw_mmu, |
354 |
__ldl_mmu, |
355 |
__ldq_mmu, |
356 |
}; |
357 |
|
358 |
static void *qemu_st_helpers[4] = { |
359 |
__stb_mmu, |
360 |
__stw_mmu, |
361 |
__stl_mmu, |
362 |
__stq_mmu, |
363 |
}; |
364 |
#endif
|
365 |
|
366 |
static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, int opc) |
367 |
{ |
368 |
int addr_reg, data_reg, data_reg2, r0, r1, mem_index, s_bits, bswap;
|
369 |
#if defined(CONFIG_SOFTMMU)
|
370 |
uint32_t *label1_ptr, *label2_ptr; |
371 |
#endif
|
372 |
#if TARGET_LONG_BITS == 64 |
373 |
#if defined(CONFIG_SOFTMMU)
|
374 |
uint32_t *label3_ptr; |
375 |
#endif
|
376 |
int addr_reg2;
|
377 |
#endif
|
378 |
|
379 |
data_reg = *args++; |
380 |
if (opc == 3) |
381 |
data_reg2 = *args++; |
382 |
else
|
383 |
data_reg2 = 0; /* surpress warning */ |
384 |
addr_reg = *args++; |
385 |
#if TARGET_LONG_BITS == 64 |
386 |
addr_reg2 = *args++; |
387 |
#endif
|
388 |
mem_index = *args; |
389 |
s_bits = opc & 3;
|
390 |
|
391 |
r0 = TCG_REG_R26; |
392 |
r1 = TCG_REG_R25; |
393 |
|
394 |
#if defined(CONFIG_SOFTMMU)
|
395 |
tcg_out_mov(s, r1, addr_reg); |
396 |
|
397 |
tcg_out_mov(s, r0, addr_reg); |
398 |
|
399 |
tcg_out32(s, SHD | INSN_T(r1) | INSN_R1(TCG_REG_R0) | INSN_R2(r1) | |
400 |
INSN_SHDEP_CP(TARGET_PAGE_BITS - CPU_TLB_ENTRY_BITS)); |
401 |
|
402 |
tcg_out_arithi(s, r0, r0, TARGET_PAGE_MASK | ((1 << s_bits) - 1), |
403 |
ARITH_AND); |
404 |
|
405 |
tcg_out_arithi(s, r1, r1, (CPU_TLB_SIZE - 1) << CPU_TLB_ENTRY_BITS,
|
406 |
ARITH_AND); |
407 |
|
408 |
tcg_out_arith(s, r1, r1, TCG_AREG0, ARITH_ADD); |
409 |
tcg_out_arithi(s, r1, r1, |
410 |
offsetof(CPUState, tlb_table[mem_index][0].addr_read),
|
411 |
ARITH_ADD); |
412 |
|
413 |
tcg_out_ldst(s, TCG_REG_R20, r1, 0, LDW);
|
414 |
|
415 |
#if TARGET_LONG_BITS == 32 |
416 |
/* if equal, jump to label1 */
|
417 |
label1_ptr = (uint32_t *)s->code_ptr; |
418 |
tcg_out32(s, COMBT | INSN_R1(TCG_REG_R20) | INSN_R2(r0) | |
419 |
INSN_COND(COND_EQUAL)); |
420 |
tcg_out_mov(s, r0, addr_reg); /* delay slot */
|
421 |
#else
|
422 |
/* if not equal, jump to label3 */
|
423 |
label3_ptr = (uint32_t *)s->code_ptr; |
424 |
tcg_out32(s, COMBF | INSN_R1(TCG_REG_R20) | INSN_R2(r0) | |
425 |
INSN_COND(COND_EQUAL)); |
426 |
tcg_out_mov(s, r0, addr_reg); /* delay slot */
|
427 |
|
428 |
tcg_out_ldst(s, TCG_REG_R20, r1, 4, LDW);
|
429 |
|
430 |
/* if equal, jump to label1 */
|
431 |
label1_ptr = (uint32_t *)s->code_ptr; |
432 |
tcg_out32(s, COMBT | INSN_R1(TCG_REG_R20) | INSN_R2(addr_reg2) | |
433 |
INSN_COND(COND_EQUAL)); |
434 |
tcg_out_nop(s); /* delay slot */
|
435 |
|
436 |
/* label3: */
|
437 |
*label3_ptr |= reassemble_12((uint32_t *)s->code_ptr - label3_ptr - 2);
|
438 |
#endif
|
439 |
|
440 |
#if TARGET_LONG_BITS == 32 |
441 |
tcg_out_mov(s, TCG_REG_R26, addr_reg); |
442 |
tcg_out_movi(s, TCG_TYPE_I32, TCG_REG_R25, mem_index); |
443 |
#else
|
444 |
tcg_out_mov(s, TCG_REG_R26, addr_reg); |
445 |
tcg_out_mov(s, TCG_REG_R25, addr_reg2); |
446 |
tcg_out_movi(s, TCG_TYPE_I32, TCG_REG_R24, mem_index); |
447 |
#endif
|
448 |
|
449 |
tcg_out_call(s, qemu_ld_helpers[s_bits]); |
450 |
|
451 |
switch(opc) {
|
452 |
case 0 | 4: |
453 |
tcg_out_ext8s(s, data_reg, TCG_REG_RET0); |
454 |
break;
|
455 |
case 1 | 4: |
456 |
tcg_out_ext16s(s, data_reg, TCG_REG_RET0); |
457 |
break;
|
458 |
case 0: |
459 |
case 1: |
460 |
case 2: |
461 |
default:
|
462 |
tcg_out_mov(s, data_reg, TCG_REG_RET0); |
463 |
break;
|
464 |
case 3: |
465 |
tcg_abort(); |
466 |
tcg_out_mov(s, data_reg, TCG_REG_RET0); |
467 |
tcg_out_mov(s, data_reg2, TCG_REG_RET1); |
468 |
break;
|
469 |
} |
470 |
|
471 |
/* jump to label2 */
|
472 |
label2_ptr = (uint32_t *)s->code_ptr; |
473 |
tcg_out32(s, BL | INSN_R2(TCG_REG_R0) | 2);
|
474 |
|
475 |
/* label1: */
|
476 |
*label1_ptr |= reassemble_12((uint32_t *)s->code_ptr - label1_ptr - 2);
|
477 |
|
478 |
tcg_out_arithi(s, TCG_REG_R20, r1, |
479 |
offsetof(CPUTLBEntry, addend) - offsetof(CPUTLBEntry, addr_read), |
480 |
ARITH_ADD); |
481 |
tcg_out_ldst(s, TCG_REG_R20, TCG_REG_R20, 0, LDW);
|
482 |
tcg_out_arith(s, r0, r0, TCG_REG_R20, ARITH_ADD); |
483 |
#else
|
484 |
r0 = addr_reg; |
485 |
#endif
|
486 |
|
487 |
#ifdef TARGET_WORDS_BIGENDIAN
|
488 |
bswap = 0;
|
489 |
#else
|
490 |
bswap = 1;
|
491 |
#endif
|
492 |
switch (opc) {
|
493 |
case 0: |
494 |
tcg_out_ldst(s, data_reg, r0, 0, LDB);
|
495 |
break;
|
496 |
case 0 | 4: |
497 |
tcg_out_ldst(s, data_reg, r0, 0, LDB);
|
498 |
tcg_out_ext8s(s, data_reg, data_reg); |
499 |
break;
|
500 |
case 1: |
501 |
tcg_out_ldst(s, data_reg, r0, 0, LDH);
|
502 |
if (bswap)
|
503 |
tcg_out_bswap16(s, data_reg, data_reg); |
504 |
break;
|
505 |
case 1 | 4: |
506 |
tcg_out_ldst(s, data_reg, r0, 0, LDH);
|
507 |
if (bswap)
|
508 |
tcg_out_bswap16(s, data_reg, data_reg); |
509 |
tcg_out_ext16s(s, data_reg, data_reg); |
510 |
break;
|
511 |
case 2: |
512 |
tcg_out_ldst(s, data_reg, r0, 0, LDW);
|
513 |
if (bswap)
|
514 |
tcg_out_bswap32(s, data_reg, data_reg, TCG_REG_R20); |
515 |
break;
|
516 |
case 3: |
517 |
tcg_abort(); |
518 |
if (!bswap) {
|
519 |
tcg_out_ldst(s, data_reg, r0, 0, LDW);
|
520 |
tcg_out_ldst(s, data_reg2, r0, 4, LDW);
|
521 |
} else {
|
522 |
tcg_out_ldst(s, data_reg, r0, 4, LDW);
|
523 |
tcg_out_bswap32(s, data_reg, data_reg, TCG_REG_R20); |
524 |
tcg_out_ldst(s, data_reg2, r0, 0, LDW);
|
525 |
tcg_out_bswap32(s, data_reg2, data_reg2, TCG_REG_R20); |
526 |
} |
527 |
break;
|
528 |
default:
|
529 |
tcg_abort(); |
530 |
} |
531 |
|
532 |
#if defined(CONFIG_SOFTMMU)
|
533 |
/* label2: */
|
534 |
*label2_ptr |= reassemble_17((uint32_t *)s->code_ptr - label2_ptr - 2);
|
535 |
#endif
|
536 |
} |
537 |
|
538 |
static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args, int opc) |
539 |
{ |
540 |
int addr_reg, data_reg, data_reg2, r0, r1, mem_index, s_bits, bswap;
|
541 |
#if defined(CONFIG_SOFTMMU)
|
542 |
uint32_t *label1_ptr, *label2_ptr; |
543 |
#endif
|
544 |
#if TARGET_LONG_BITS == 64 |
545 |
#if defined(CONFIG_SOFTMMU)
|
546 |
uint32_t *label3_ptr; |
547 |
#endif
|
548 |
int addr_reg2;
|
549 |
#endif
|
550 |
|
551 |
data_reg = *args++; |
552 |
if (opc == 3) |
553 |
data_reg2 = *args++; |
554 |
else
|
555 |
data_reg2 = 0; /* surpress warning */ |
556 |
addr_reg = *args++; |
557 |
#if TARGET_LONG_BITS == 64 |
558 |
addr_reg2 = *args++; |
559 |
#endif
|
560 |
mem_index = *args; |
561 |
|
562 |
s_bits = opc; |
563 |
|
564 |
r0 = TCG_REG_R26; |
565 |
r1 = TCG_REG_R25; |
566 |
|
567 |
#if defined(CONFIG_SOFTMMU)
|
568 |
tcg_out_mov(s, r1, addr_reg); |
569 |
|
570 |
tcg_out_mov(s, r0, addr_reg); |
571 |
|
572 |
tcg_out32(s, SHD | INSN_T(r1) | INSN_R1(TCG_REG_R0) | INSN_R2(r1) | |
573 |
INSN_SHDEP_CP(TARGET_PAGE_BITS - CPU_TLB_ENTRY_BITS)); |
574 |
|
575 |
tcg_out_arithi(s, r0, r0, TARGET_PAGE_MASK | ((1 << s_bits) - 1), |
576 |
ARITH_AND); |
577 |
|
578 |
tcg_out_arithi(s, r1, r1, (CPU_TLB_SIZE - 1) << CPU_TLB_ENTRY_BITS,
|
579 |
ARITH_AND); |
580 |
|
581 |
tcg_out_arith(s, r1, r1, TCG_AREG0, ARITH_ADD); |
582 |
tcg_out_arithi(s, r1, r1, |
583 |
offsetof(CPUState, tlb_table[mem_index][0].addr_write),
|
584 |
ARITH_ADD); |
585 |
|
586 |
tcg_out_ldst(s, TCG_REG_R20, r1, 0, LDW);
|
587 |
|
588 |
#if TARGET_LONG_BITS == 32 |
589 |
/* if equal, jump to label1 */
|
590 |
label1_ptr = (uint32_t *)s->code_ptr; |
591 |
tcg_out32(s, COMBT | INSN_R1(TCG_REG_R20) | INSN_R2(r0) | |
592 |
INSN_COND(COND_EQUAL)); |
593 |
tcg_out_mov(s, r0, addr_reg); /* delay slot */
|
594 |
#else
|
595 |
/* if not equal, jump to label3 */
|
596 |
label3_ptr = (uint32_t *)s->code_ptr; |
597 |
tcg_out32(s, COMBF | INSN_R1(TCG_REG_R20) | INSN_R2(r0) | |
598 |
INSN_COND(COND_EQUAL)); |
599 |
tcg_out_mov(s, r0, addr_reg); /* delay slot */
|
600 |
|
601 |
tcg_out_ldst(s, TCG_REG_R20, r1, 4, LDW);
|
602 |
|
603 |
/* if equal, jump to label1 */
|
604 |
label1_ptr = (uint32_t *)s->code_ptr; |
605 |
tcg_out32(s, COMBT | INSN_R1(TCG_REG_R20) | INSN_R2(addr_reg2) | |
606 |
INSN_COND(COND_EQUAL)); |
607 |
tcg_out_nop(s); /* delay slot */
|
608 |
|
609 |
/* label3: */
|
610 |
*label3_ptr |= reassemble_12((uint32_t *)s->code_ptr - label3_ptr - 2);
|
611 |
#endif
|
612 |
|
613 |
tcg_out_mov(s, TCG_REG_R26, addr_reg); |
614 |
#if TARGET_LONG_BITS == 64 |
615 |
tcg_out_mov(s, TCG_REG_R25, addr_reg2); |
616 |
if (opc == 3) { |
617 |
tcg_abort(); |
618 |
tcg_out_mov(s, TCG_REG_R24, data_reg); |
619 |
tcg_out_mov(s, TCG_REG_R23, data_reg2); |
620 |
/* TODO: push mem_index */
|
621 |
tcg_abort(); |
622 |
} else {
|
623 |
switch(opc) {
|
624 |
case 0: |
625 |
tcg_out32(s, EXTRU | INSN_R1(TCG_REG_R24) | INSN_R2(data_reg) | |
626 |
INSN_SHDEP_P(31) | INSN_DEP_LEN(8)); |
627 |
break;
|
628 |
case 1: |
629 |
tcg_out32(s, EXTRU | INSN_R1(TCG_REG_R24) | INSN_R2(data_reg) | |
630 |
INSN_SHDEP_P(31) | INSN_DEP_LEN(16)); |
631 |
break;
|
632 |
case 2: |
633 |
tcg_out_mov(s, TCG_REG_R24, data_reg); |
634 |
break;
|
635 |
} |
636 |
tcg_out_movi(s, TCG_TYPE_I32, TCG_REG_R23, mem_index); |
637 |
} |
638 |
#else
|
639 |
if (opc == 3) { |
640 |
tcg_abort(); |
641 |
tcg_out_mov(s, TCG_REG_R25, data_reg); |
642 |
tcg_out_mov(s, TCG_REG_R24, data_reg2); |
643 |
tcg_out_movi(s, TCG_TYPE_I32, TCG_REG_R23, mem_index); |
644 |
} else {
|
645 |
switch(opc) {
|
646 |
case 0: |
647 |
tcg_out32(s, EXTRU | INSN_R1(TCG_REG_R25) | INSN_R2(data_reg) | |
648 |
INSN_SHDEP_P(31) | INSN_DEP_LEN(8)); |
649 |
break;
|
650 |
case 1: |
651 |
tcg_out32(s, EXTRU | INSN_R1(TCG_REG_R25) | INSN_R2(data_reg) | |
652 |
INSN_SHDEP_P(31) | INSN_DEP_LEN(16)); |
653 |
break;
|
654 |
case 2: |
655 |
tcg_out_mov(s, TCG_REG_R25, data_reg); |
656 |
break;
|
657 |
} |
658 |
tcg_out_movi(s, TCG_TYPE_I32, TCG_REG_R24, mem_index); |
659 |
} |
660 |
#endif
|
661 |
tcg_out_call(s, qemu_st_helpers[s_bits]); |
662 |
|
663 |
/* jump to label2 */
|
664 |
label2_ptr = (uint32_t *)s->code_ptr; |
665 |
tcg_out32(s, BL | INSN_R2(TCG_REG_R0) | 2);
|
666 |
|
667 |
/* label1: */
|
668 |
*label1_ptr |= reassemble_12((uint32_t *)s->code_ptr - label1_ptr - 2);
|
669 |
|
670 |
tcg_out_arithi(s, TCG_REG_R20, r1, |
671 |
offsetof(CPUTLBEntry, addend) - offsetof(CPUTLBEntry, addr_write), |
672 |
ARITH_ADD); |
673 |
tcg_out_ldst(s, TCG_REG_R20, TCG_REG_R20, 0, LDW);
|
674 |
tcg_out_arith(s, r0, r0, TCG_REG_R20, ARITH_ADD); |
675 |
#else
|
676 |
r0 = addr_reg; |
677 |
#endif
|
678 |
|
679 |
#ifdef TARGET_WORDS_BIGENDIAN
|
680 |
bswap = 0;
|
681 |
#else
|
682 |
bswap = 1;
|
683 |
#endif
|
684 |
switch (opc) {
|
685 |
case 0: |
686 |
tcg_out_ldst(s, data_reg, r0, 0, STB);
|
687 |
break;
|
688 |
case 1: |
689 |
if (bswap) {
|
690 |
tcg_out_bswap16(s, TCG_REG_R20, data_reg); |
691 |
data_reg = TCG_REG_R20; |
692 |
} |
693 |
tcg_out_ldst(s, data_reg, r0, 0, STH);
|
694 |
break;
|
695 |
case 2: |
696 |
if (bswap) {
|
697 |
tcg_out_bswap32(s, TCG_REG_R20, data_reg, TCG_REG_R20); |
698 |
data_reg = TCG_REG_R20; |
699 |
} |
700 |
tcg_out_ldst(s, data_reg, r0, 0, STW);
|
701 |
break;
|
702 |
case 3: |
703 |
tcg_abort(); |
704 |
if (!bswap) {
|
705 |
tcg_out_ldst(s, data_reg, r0, 0, STW);
|
706 |
tcg_out_ldst(s, data_reg2, r0, 4, STW);
|
707 |
} else {
|
708 |
tcg_out_bswap32(s, TCG_REG_R20, data_reg, TCG_REG_R20); |
709 |
tcg_out_ldst(s, TCG_REG_R20, r0, 4, STW);
|
710 |
tcg_out_bswap32(s, TCG_REG_R20, data_reg2, TCG_REG_R20); |
711 |
tcg_out_ldst(s, TCG_REG_R20, r0, 0, STW);
|
712 |
} |
713 |
break;
|
714 |
default:
|
715 |
tcg_abort(); |
716 |
} |
717 |
|
718 |
#if defined(CONFIG_SOFTMMU)
|
719 |
/* label2: */
|
720 |
*label2_ptr |= reassemble_17((uint32_t *)s->code_ptr - label2_ptr - 2);
|
721 |
#endif
|
722 |
} |
723 |
|
724 |
static inline void tcg_out_op(TCGContext *s, int opc, const TCGArg *args, |
725 |
const int *const_args) |
726 |
{ |
727 |
int c;
|
728 |
|
729 |
switch (opc) {
|
730 |
case INDEX_op_exit_tb:
|
731 |
tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_RET0, args[0]);
|
732 |
tcg_out32(s, BV_N | INSN_R2(TCG_REG_R18)); |
733 |
break;
|
734 |
case INDEX_op_goto_tb:
|
735 |
if (s->tb_jmp_offset) {
|
736 |
/* direct jump method */
|
737 |
fprintf(stderr, "goto_tb direct\n");
|
738 |
tcg_abort(); |
739 |
tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R20, args[0]);
|
740 |
tcg_out32(s, BV_N | INSN_R2(TCG_REG_R20)); |
741 |
s->tb_jmp_offset[args[0]] = s->code_ptr - s->code_buf;
|
742 |
} else {
|
743 |
/* indirect jump method */
|
744 |
tcg_out_ld_ptr(s, TCG_REG_R20, |
745 |
(tcg_target_long)(s->tb_next + args[0]));
|
746 |
tcg_out32(s, BV_N | INSN_R2(TCG_REG_R20)); |
747 |
} |
748 |
s->tb_next_offset[args[0]] = s->code_ptr - s->code_buf;
|
749 |
break;
|
750 |
case INDEX_op_call:
|
751 |
tcg_out32(s, BLE_SR4 | INSN_R2(args[0]));
|
752 |
tcg_out_mov(s, TCG_REG_RP, TCG_REG_R31); |
753 |
break;
|
754 |
case INDEX_op_jmp:
|
755 |
fprintf(stderr, "unimplemented jmp\n");
|
756 |
tcg_abort(); |
757 |
break;
|
758 |
case INDEX_op_br:
|
759 |
fprintf(stderr, "unimplemented br\n");
|
760 |
tcg_abort(); |
761 |
break;
|
762 |
case INDEX_op_movi_i32:
|
763 |
tcg_out_movi(s, TCG_TYPE_I32, args[0], (uint32_t)args[1]); |
764 |
break;
|
765 |
|
766 |
case INDEX_op_ld8u_i32:
|
767 |
tcg_out_ldst(s, args[0], args[1], args[2], LDB); |
768 |
break;
|
769 |
case INDEX_op_ld8s_i32:
|
770 |
tcg_out_ldst(s, args[0], args[1], args[2], LDB); |
771 |
tcg_out_ext8s(s, args[0], args[0]); |
772 |
break;
|
773 |
case INDEX_op_ld16u_i32:
|
774 |
tcg_out_ldst(s, args[0], args[1], args[2], LDH); |
775 |
break;
|
776 |
case INDEX_op_ld16s_i32:
|
777 |
tcg_out_ldst(s, args[0], args[1], args[2], LDH); |
778 |
tcg_out_ext16s(s, args[0], args[0]); |
779 |
break;
|
780 |
case INDEX_op_ld_i32:
|
781 |
tcg_out_ldst(s, args[0], args[1], args[2], LDW); |
782 |
break;
|
783 |
|
784 |
case INDEX_op_st8_i32:
|
785 |
tcg_out_ldst(s, args[0], args[1], args[2], STB); |
786 |
break;
|
787 |
case INDEX_op_st16_i32:
|
788 |
tcg_out_ldst(s, args[0], args[1], args[2], STH); |
789 |
break;
|
790 |
case INDEX_op_st_i32:
|
791 |
tcg_out_ldst(s, args[0], args[1], args[2], STW); |
792 |
break;
|
793 |
|
794 |
case INDEX_op_sub_i32:
|
795 |
c = ARITH_SUB; |
796 |
goto gen_arith;
|
797 |
case INDEX_op_and_i32:
|
798 |
c = ARITH_AND; |
799 |
goto gen_arith;
|
800 |
case INDEX_op_or_i32:
|
801 |
c = ARITH_OR; |
802 |
goto gen_arith;
|
803 |
case INDEX_op_xor_i32:
|
804 |
c = ARITH_XOR; |
805 |
goto gen_arith;
|
806 |
case INDEX_op_add_i32:
|
807 |
c = ARITH_ADD; |
808 |
goto gen_arith;
|
809 |
|
810 |
case INDEX_op_shl_i32:
|
811 |
tcg_out32(s, SUBI | INSN_R1(TCG_REG_R20) | INSN_R2(args[2]) |
|
812 |
lowsignext(0x1f, 0, 11)); |
813 |
tcg_out32(s, MTCTL | INSN_R2(11) | INSN_R1(TCG_REG_R20));
|
814 |
tcg_out32(s, ZVDEP | INSN_R2(args[0]) | INSN_R1(args[1]) | |
815 |
INSN_DEP_LEN(32));
|
816 |
break;
|
817 |
case INDEX_op_shr_i32:
|
818 |
tcg_out32(s, MTCTL | INSN_R2(11) | INSN_R1(args[2])); |
819 |
tcg_out32(s, VSHD | INSN_T(args[0]) | INSN_R1(TCG_REG_R0) |
|
820 |
INSN_R2(args[1]));
|
821 |
break;
|
822 |
case INDEX_op_sar_i32:
|
823 |
tcg_out32(s, SUBI | INSN_R1(TCG_REG_R20) | INSN_R2(args[2]) |
|
824 |
lowsignext(0x1f, 0, 11)); |
825 |
tcg_out32(s, MTCTL | INSN_R2(11) | INSN_R1(TCG_REG_R20));
|
826 |
tcg_out32(s, VEXTRS | INSN_R1(args[0]) | INSN_R2(args[1]) | |
827 |
INSN_DEP_LEN(32));
|
828 |
break;
|
829 |
|
830 |
case INDEX_op_mul_i32:
|
831 |
fprintf(stderr, "unimplemented mul\n");
|
832 |
tcg_abort(); |
833 |
break;
|
834 |
case INDEX_op_mulu2_i32:
|
835 |
fprintf(stderr, "unimplemented mulu2\n");
|
836 |
tcg_abort(); |
837 |
break;
|
838 |
case INDEX_op_div2_i32:
|
839 |
fprintf(stderr, "unimplemented div2\n");
|
840 |
tcg_abort(); |
841 |
break;
|
842 |
case INDEX_op_divu2_i32:
|
843 |
fprintf(stderr, "unimplemented divu2\n");
|
844 |
tcg_abort(); |
845 |
break;
|
846 |
|
847 |
case INDEX_op_brcond_i32:
|
848 |
fprintf(stderr, "unimplemented brcond\n");
|
849 |
tcg_abort(); |
850 |
break;
|
851 |
|
852 |
case INDEX_op_qemu_ld8u:
|
853 |
tcg_out_qemu_ld(s, args, 0);
|
854 |
break;
|
855 |
case INDEX_op_qemu_ld8s:
|
856 |
tcg_out_qemu_ld(s, args, 0 | 4); |
857 |
break;
|
858 |
case INDEX_op_qemu_ld16u:
|
859 |
tcg_out_qemu_ld(s, args, 1);
|
860 |
break;
|
861 |
case INDEX_op_qemu_ld16s:
|
862 |
tcg_out_qemu_ld(s, args, 1 | 4); |
863 |
break;
|
864 |
case INDEX_op_qemu_ld32u:
|
865 |
tcg_out_qemu_ld(s, args, 2);
|
866 |
break;
|
867 |
|
868 |
case INDEX_op_qemu_st8:
|
869 |
tcg_out_qemu_st(s, args, 0);
|
870 |
break;
|
871 |
case INDEX_op_qemu_st16:
|
872 |
tcg_out_qemu_st(s, args, 1);
|
873 |
break;
|
874 |
case INDEX_op_qemu_st32:
|
875 |
tcg_out_qemu_st(s, args, 2);
|
876 |
break;
|
877 |
|
878 |
default:
|
879 |
fprintf(stderr, "unknown opcode 0x%x\n", opc);
|
880 |
tcg_abort(); |
881 |
} |
882 |
return;
|
883 |
|
884 |
gen_arith:
|
885 |
tcg_out_arith(s, args[0], args[1], args[2], c); |
886 |
} |
887 |
|
888 |
static const TCGTargetOpDef hppa_op_defs[] = { |
889 |
{ INDEX_op_exit_tb, { } }, |
890 |
{ INDEX_op_goto_tb, { } }, |
891 |
|
892 |
{ INDEX_op_call, { "r" } },
|
893 |
{ INDEX_op_jmp, { "r" } },
|
894 |
{ INDEX_op_br, { } }, |
895 |
|
896 |
{ INDEX_op_mov_i32, { "r", "r" } }, |
897 |
{ INDEX_op_movi_i32, { "r" } },
|
898 |
{ INDEX_op_ld8u_i32, { "r", "r" } }, |
899 |
{ INDEX_op_ld8s_i32, { "r", "r" } }, |
900 |
{ INDEX_op_ld16u_i32, { "r", "r" } }, |
901 |
{ INDEX_op_ld16s_i32, { "r", "r" } }, |
902 |
{ INDEX_op_ld_i32, { "r", "r" } }, |
903 |
{ INDEX_op_st8_i32, { "r", "r" } }, |
904 |
{ INDEX_op_st16_i32, { "r", "r" } }, |
905 |
{ INDEX_op_st_i32, { "r", "r" } }, |
906 |
|
907 |
{ INDEX_op_add_i32, { "r", "r", "r" } }, |
908 |
{ INDEX_op_sub_i32, { "r", "r", "r" } }, |
909 |
{ INDEX_op_and_i32, { "r", "r", "r" } }, |
910 |
{ INDEX_op_or_i32, { "r", "r", "r" } }, |
911 |
{ INDEX_op_xor_i32, { "r", "r", "r" } }, |
912 |
|
913 |
{ INDEX_op_shl_i32, { "r", "r", "r" } }, |
914 |
{ INDEX_op_shr_i32, { "r", "r", "r" } }, |
915 |
{ INDEX_op_sar_i32, { "r", "r", "r" } }, |
916 |
|
917 |
{ INDEX_op_brcond_i32, { "r", "r" } }, |
918 |
|
919 |
#if TARGET_LONG_BITS == 32 |
920 |
{ INDEX_op_qemu_ld8u, { "r", "L" } }, |
921 |
{ INDEX_op_qemu_ld8s, { "r", "L" } }, |
922 |
{ INDEX_op_qemu_ld16u, { "r", "L" } }, |
923 |
{ INDEX_op_qemu_ld16s, { "r", "L" } }, |
924 |
{ INDEX_op_qemu_ld32u, { "r", "L" } }, |
925 |
{ INDEX_op_qemu_ld64, { "r", "r", "L" } }, |
926 |
|
927 |
{ INDEX_op_qemu_st8, { "L", "L" } }, |
928 |
{ INDEX_op_qemu_st16, { "L", "L" } }, |
929 |
{ INDEX_op_qemu_st32, { "L", "L" } }, |
930 |
{ INDEX_op_qemu_st64, { "L", "L", "L" } }, |
931 |
#else
|
932 |
{ INDEX_op_qemu_ld8u, { "r", "L", "L" } }, |
933 |
{ INDEX_op_qemu_ld8s, { "r", "L", "L" } }, |
934 |
{ INDEX_op_qemu_ld16u, { "r", "L", "L" } }, |
935 |
{ INDEX_op_qemu_ld16s, { "r", "L", "L" } }, |
936 |
{ INDEX_op_qemu_ld32u, { "r", "L", "L" } }, |
937 |
{ INDEX_op_qemu_ld32s, { "r", "L", "L" } }, |
938 |
{ INDEX_op_qemu_ld64, { "r", "r", "L", "L" } }, |
939 |
|
940 |
{ INDEX_op_qemu_st8, { "L", "L", "L" } }, |
941 |
{ INDEX_op_qemu_st16, { "L", "L", "L" } }, |
942 |
{ INDEX_op_qemu_st32, { "L", "L", "L" } }, |
943 |
{ INDEX_op_qemu_st64, { "L", "L", "L", "L" } }, |
944 |
#endif
|
945 |
{ -1 },
|
946 |
}; |
947 |
|
948 |
void tcg_target_init(TCGContext *s)
|
949 |
{ |
950 |
tcg_regset_set32(tcg_target_available_regs[TCG_TYPE_I32], 0, 0xffffffff); |
951 |
tcg_regset_set32(tcg_target_call_clobber_regs, 0,
|
952 |
(1 << TCG_REG_R20) |
|
953 |
(1 << TCG_REG_R21) |
|
954 |
(1 << TCG_REG_R22) |
|
955 |
(1 << TCG_REG_R23) |
|
956 |
(1 << TCG_REG_R24) |
|
957 |
(1 << TCG_REG_R25) |
|
958 |
(1 << TCG_REG_R26));
|
959 |
|
960 |
tcg_regset_clear(s->reserved_regs); |
961 |
tcg_regset_set_reg(s->reserved_regs, TCG_REG_R0); /* hardwired to zero */
|
962 |
tcg_regset_set_reg(s->reserved_regs, TCG_REG_R1); /* addil target */
|
963 |
tcg_regset_set_reg(s->reserved_regs, TCG_REG_RP); /* link register */
|
964 |
tcg_regset_set_reg(s->reserved_regs, TCG_REG_R3); /* frame pointer */
|
965 |
tcg_regset_set_reg(s->reserved_regs, TCG_REG_R18); /* return pointer */
|
966 |
tcg_regset_set_reg(s->reserved_regs, TCG_REG_R19); /* clobbered w/o pic */
|
967 |
tcg_regset_set_reg(s->reserved_regs, TCG_REG_R20); /* reserved */
|
968 |
tcg_regset_set_reg(s->reserved_regs, TCG_REG_DP); /* data pointer */
|
969 |
tcg_regset_set_reg(s->reserved_regs, TCG_REG_SP); /* stack pointer */
|
970 |
tcg_regset_set_reg(s->reserved_regs, TCG_REG_R31); /* ble link reg */
|
971 |
|
972 |
tcg_add_target_add_op_defs(hppa_op_defs); |
973 |
} |