root / tcg / mips / tcg-target.c @ a9751609
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/*
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* Tiny Code Generator for QEMU
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*
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* Copyright (c) 2008-2009 Arnaud Patard <arnaud.patard@rtp-net.org>
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* Copyright (c) 2009 Aurelien Jarno <aurelien@aurel32.net>
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* Based on i386/tcg-target.c - 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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#if defined(TCG_TARGET_WORDS_BIGENDIAN) == defined(TARGET_WORDS_BIGENDIAN)
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# define TCG_NEED_BSWAP 0 |
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#else
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# define TCG_NEED_BSWAP 1 |
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#endif
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|
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#ifndef NDEBUG
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static const char * const tcg_target_reg_names[TCG_TARGET_NB_REGS] = { |
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"zero",
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"at",
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"v0",
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"v1",
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"a0",
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"a1",
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"a2",
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"a3",
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"t0",
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"t1",
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"t2",
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"t3",
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"t4",
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"t5",
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"t6",
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"t7",
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"s0",
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"s1",
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"s2",
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"s3",
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"s4",
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"s5",
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"s6",
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"s7",
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"t8",
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"t9",
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"k0",
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"k1",
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"gp",
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"sp",
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"fp",
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"ra",
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}; |
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#endif
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|
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/* check if we really need so many registers :P */
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static const int tcg_target_reg_alloc_order[] = { |
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TCG_REG_S0, |
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TCG_REG_S1, |
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TCG_REG_S2, |
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TCG_REG_S3, |
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TCG_REG_S4, |
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TCG_REG_S5, |
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TCG_REG_S6, |
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TCG_REG_S7, |
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TCG_REG_T1, |
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TCG_REG_T2, |
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TCG_REG_T3, |
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TCG_REG_T4, |
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TCG_REG_T5, |
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TCG_REG_T6, |
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TCG_REG_T7, |
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TCG_REG_T8, |
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TCG_REG_T9, |
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TCG_REG_A0, |
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TCG_REG_A1, |
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TCG_REG_A2, |
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TCG_REG_A3, |
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TCG_REG_V0, |
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TCG_REG_V1 |
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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_A0, |
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TCG_REG_A1, |
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TCG_REG_A2, |
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TCG_REG_A3 |
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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_V0, |
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TCG_REG_V1 |
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}; |
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|
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static uint8_t *tb_ret_addr;
|
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|
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static inline uint32_t reloc_lo16_val (void *pc, tcg_target_long target) |
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{
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return target & 0xffff; |
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} |
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|
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static inline void reloc_lo16 (void *pc, tcg_target_long target) |
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{
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*(uint32_t *) pc = (*(uint32_t *) pc & ~0xffff)
|
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| reloc_lo16_val(pc, target); |
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} |
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|
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static inline uint32_t reloc_hi16_val (void *pc, tcg_target_long target) |
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{
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return (target >> 16) & 0xffff; |
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} |
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|
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static inline void reloc_hi16 (void *pc, tcg_target_long target) |
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{
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*(uint32_t *) pc = (*(uint32_t *) pc & ~0xffff)
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| reloc_hi16_val(pc, target); |
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} |
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|
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static inline uint32_t reloc_pc16_val (void *pc, tcg_target_long target) |
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{
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int32_t disp; |
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|
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disp = target - (tcg_target_long) pc - 4;
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if (disp != (disp << 14) >> 14) { |
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tcg_abort (); |
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} |
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|
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return (disp >> 2) & 0xffff; |
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} |
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|
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static inline void reloc_pc16 (void *pc, tcg_target_long target) |
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{
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*(uint32_t *) pc = (*(uint32_t *) pc & ~0xffff)
|
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| reloc_pc16_val(pc, target); |
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} |
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|
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static inline uint32_t reloc_26_val (void *pc, tcg_target_long target) |
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{
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if ((((tcg_target_long)pc + 4) & 0xf0000000) != (target & 0xf0000000)) { |
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tcg_abort (); |
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} |
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return (target >> 2) & 0x3ffffff; |
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} |
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|
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static inline void reloc_pc26 (void *pc, tcg_target_long target) |
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{
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*(uint32_t *) pc = (*(uint32_t *) pc & ~0x3ffffff)
|
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| reloc_26_val(pc, target); |
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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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value += addend; |
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switch(type) {
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case R_MIPS_LO16:
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reloc_lo16(code_ptr, value); |
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break;
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case R_MIPS_HI16:
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reloc_hi16(code_ptr, value); |
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break;
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case R_MIPS_PC16:
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reloc_pc16(code_ptr, value); |
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break;
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case R_MIPS_26:
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reloc_pc26(code_ptr, value); |
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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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static 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_set(ct->u.regs, 0xffffffff);
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break;
|
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case 'C': |
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ct->ct |= TCG_CT_REG; |
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tcg_regset_clear(ct->u.regs); |
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tcg_regset_set_reg(ct->u.regs, TCG_REG_T9); |
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break;
|
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case 'L': /* qemu_ld output arg constraint */ |
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ct->ct |= TCG_CT_REG; |
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tcg_regset_set(ct->u.regs, 0xffffffff);
|
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tcg_regset_reset_reg(ct->u.regs, TCG_REG_V0); |
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break;
|
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case 'l': /* qemu_ld input arg constraint */ |
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ct->ct |= TCG_CT_REG; |
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tcg_regset_set(ct->u.regs, 0xffffffff);
|
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#if defined(CONFIG_SOFTMMU)
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tcg_regset_reset_reg(ct->u.regs, TCG_REG_A0); |
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#endif
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break;
|
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case 'S': /* qemu_st constraint */ |
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ct->ct |= TCG_CT_REG; |
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tcg_regset_set(ct->u.regs, 0xffffffff);
|
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#if defined(CONFIG_SOFTMMU)
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tcg_regset_reset_reg(ct->u.regs, TCG_REG_A0); |
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# if TARGET_LONG_BITS == 64 |
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tcg_regset_reset_reg(ct->u.regs, TCG_REG_A1); |
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# endif
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tcg_regset_reset_reg(ct->u.regs, TCG_REG_A2); |
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#endif
|
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break;
|
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case 'I': |
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ct->ct |= TCG_CT_CONST_U16; |
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break;
|
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case 'J': |
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ct->ct |= TCG_CT_CONST_S16; |
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break;
|
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case 'Z': |
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/* We are cheating a bit here, using the fact that the register
|
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ZERO is also the register number 0. Hence there is no need
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to check for const_args in each instruction. */
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ct->ct |= TCG_CT_CONST_ZERO; |
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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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if (ct & TCG_CT_CONST)
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return 1; |
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else if ((ct & TCG_CT_CONST_ZERO) && val == 0) |
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return 1; |
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else if ((ct & TCG_CT_CONST_U16) && val == (uint16_t)val) |
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return 1; |
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else if ((ct & TCG_CT_CONST_S16) && val == (int16_t)val) |
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return 1; |
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else
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return 0; |
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} |
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|
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/* instruction opcodes */
|
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enum {
|
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OPC_SPECIAL = 0x00 << 26, |
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OPC_BEQ = 0x04 << 26, |
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OPC_BNE = 0x05 << 26, |
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OPC_ADDIU = 0x09 << 26, |
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OPC_SLTI = 0x0A << 26, |
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OPC_SLTIU = 0x0B << 26, |
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OPC_ANDI = 0x0C << 26, |
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OPC_ORI = 0x0D << 26, |
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OPC_XORI = 0x0E << 26, |
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OPC_LUI = 0x0F << 26, |
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OPC_LB = 0x20 << 26, |
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OPC_LH = 0x21 << 26, |
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OPC_LW = 0x23 << 26, |
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OPC_LBU = 0x24 << 26, |
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OPC_LHU = 0x25 << 26, |
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OPC_LWU = 0x27 << 26, |
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OPC_SB = 0x28 << 26, |
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OPC_SH = 0x29 << 26, |
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OPC_SW = 0x2B << 26, |
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OPC_SLL = OPC_SPECIAL | 0x00,
|
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OPC_SRL = OPC_SPECIAL | 0x02,
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OPC_SRA = OPC_SPECIAL | 0x03,
|
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OPC_SLLV = OPC_SPECIAL | 0x04,
|
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OPC_SRLV = OPC_SPECIAL | 0x06,
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OPC_SRAV = OPC_SPECIAL | 0x07,
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OPC_JR = OPC_SPECIAL | 0x08,
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OPC_JALR = OPC_SPECIAL | 0x09,
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OPC_MFHI = OPC_SPECIAL | 0x10,
|
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OPC_MFLO = OPC_SPECIAL | 0x12,
|
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OPC_MULT = OPC_SPECIAL | 0x18,
|
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OPC_MULTU = OPC_SPECIAL | 0x19,
|
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OPC_DIV = OPC_SPECIAL | 0x1A,
|
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OPC_DIVU = OPC_SPECIAL | 0x1B,
|
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OPC_ADDU = OPC_SPECIAL | 0x21,
|
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OPC_SUBU = OPC_SPECIAL | 0x23,
|
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OPC_AND = OPC_SPECIAL | 0x24,
|
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OPC_OR = OPC_SPECIAL | 0x25,
|
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OPC_XOR = OPC_SPECIAL | 0x26,
|
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OPC_NOR = OPC_SPECIAL | 0x27,
|
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OPC_SLT = OPC_SPECIAL | 0x2A,
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OPC_SLTU = OPC_SPECIAL | 0x2B,
|
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}; |
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|
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/*
|
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* Type reg
|
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*/
|
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static inline void tcg_out_opc_reg(TCGContext *s, int opc, int rd, int rs, int rt) |
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{
|
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int32_t inst; |
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|
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inst = opc; |
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inst |= (rs & 0x1F) << 21; |
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inst |= (rt & 0x1F) << 16; |
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inst |= (rd & 0x1F) << 11; |
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tcg_out32(s, inst); |
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} |
| 329 |
|
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/*
|
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* Type immediate
|
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*/
|
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static inline void tcg_out_opc_imm(TCGContext *s, int opc, int rt, int rs, int imm) |
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{
|
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int32_t inst; |
| 336 |
|
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inst = opc; |
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inst |= (rs & 0x1F) << 21; |
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inst |= (rt & 0x1F) << 16; |
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inst |= (imm & 0xffff);
|
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tcg_out32(s, inst); |
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} |
| 343 |
|
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/*
|
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* Type sa
|
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*/
|
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static inline void tcg_out_opc_sa(TCGContext *s, int opc, int rd, int rt, int sa) |
| 348 |
{
|
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int32_t inst; |
| 350 |
|
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inst = opc; |
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inst |= (rt & 0x1F) << 16; |
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inst |= (rd & 0x1F) << 11; |
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inst |= (sa & 0x1F) << 6; |
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tcg_out32(s, inst); |
| 356 |
|
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} |
| 358 |
|
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static inline void tcg_out_nop(TCGContext *s) |
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{
|
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tcg_out32(s, 0);
|
| 362 |
} |
| 363 |
|
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static inline void tcg_out_mov(TCGContext *s, int ret, int arg) |
| 365 |
{
|
| 366 |
tcg_out_opc_reg(s, OPC_ADDU, ret, arg, TCG_REG_ZERO); |
| 367 |
} |
| 368 |
|
| 369 |
static inline void tcg_out_movi(TCGContext *s, TCGType type, |
| 370 |
int reg, int32_t arg)
|
| 371 |
{
|
| 372 |
if (arg == (int16_t)arg) {
|
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tcg_out_opc_imm(s, OPC_ADDIU, reg, TCG_REG_ZERO, arg); |
| 374 |
} else if (arg == (uint16_t)arg) { |
| 375 |
tcg_out_opc_imm(s, OPC_ORI, reg, TCG_REG_ZERO, arg); |
| 376 |
} else {
|
| 377 |
tcg_out_opc_imm(s, OPC_LUI, reg, 0, arg >> 16); |
| 378 |
tcg_out_opc_imm(s, OPC_ORI, reg, reg, arg & 0xffff);
|
| 379 |
} |
| 380 |
} |
| 381 |
|
| 382 |
static inline void tcg_out_bswap16(TCGContext *s, int ret, int arg) |
| 383 |
{
|
| 384 |
/* ret and arg can't be register at */
|
| 385 |
if (ret == TCG_REG_AT || arg == TCG_REG_AT) {
|
| 386 |
tcg_abort(); |
| 387 |
} |
| 388 |
|
| 389 |
tcg_out_opc_sa(s, OPC_SRL, TCG_REG_AT, arg, 8);
|
| 390 |
tcg_out_opc_imm(s, OPC_ANDI, TCG_REG_AT, TCG_REG_AT, 0x00ff);
|
| 391 |
|
| 392 |
tcg_out_opc_sa(s, OPC_SLL, ret, arg, 8);
|
| 393 |
tcg_out_opc_imm(s, OPC_ANDI, ret, ret, 0xff00);
|
| 394 |
tcg_out_opc_reg(s, OPC_OR, ret, ret, TCG_REG_AT); |
| 395 |
} |
| 396 |
|
| 397 |
static inline void tcg_out_bswap16s(TCGContext *s, int ret, int arg) |
| 398 |
{
|
| 399 |
/* ret and arg can't be register at */
|
| 400 |
if (ret == TCG_REG_AT || arg == TCG_REG_AT) {
|
| 401 |
tcg_abort(); |
| 402 |
} |
| 403 |
|
| 404 |
tcg_out_opc_sa(s, OPC_SRL, TCG_REG_AT, arg, 8);
|
| 405 |
tcg_out_opc_imm(s, OPC_ANDI, TCG_REG_AT, TCG_REG_AT, 0xff);
|
| 406 |
|
| 407 |
tcg_out_opc_sa(s, OPC_SLL, ret, arg, 24);
|
| 408 |
tcg_out_opc_sa(s, OPC_SRA, ret, ret, 16);
|
| 409 |
tcg_out_opc_reg(s, OPC_OR, ret, ret, TCG_REG_AT); |
| 410 |
} |
| 411 |
|
| 412 |
static inline void tcg_out_bswap32(TCGContext *s, int ret, int arg) |
| 413 |
{
|
| 414 |
/* ret and arg must be different and can't be register at */
|
| 415 |
if (ret == arg || ret == TCG_REG_AT || arg == TCG_REG_AT) {
|
| 416 |
tcg_abort(); |
| 417 |
} |
| 418 |
|
| 419 |
tcg_out_opc_sa(s, OPC_SLL, ret, arg, 24);
|
| 420 |
|
| 421 |
tcg_out_opc_sa(s, OPC_SRL, TCG_REG_AT, arg, 24);
|
| 422 |
tcg_out_opc_reg(s, OPC_OR, ret, ret, TCG_REG_AT); |
| 423 |
|
| 424 |
tcg_out_opc_imm(s, OPC_ANDI, TCG_REG_AT, arg, 0xff00);
|
| 425 |
tcg_out_opc_sa(s, OPC_SLL, TCG_REG_AT, TCG_REG_AT, 8);
|
| 426 |
tcg_out_opc_reg(s, OPC_OR, ret, ret, TCG_REG_AT); |
| 427 |
|
| 428 |
tcg_out_opc_sa(s, OPC_SRL, TCG_REG_AT, arg, 8);
|
| 429 |
tcg_out_opc_imm(s, OPC_ANDI, TCG_REG_AT, TCG_REG_AT, 0xff00);
|
| 430 |
tcg_out_opc_reg(s, OPC_OR, ret, ret, TCG_REG_AT); |
| 431 |
} |
| 432 |
|
| 433 |
static inline void tcg_out_ldst(TCGContext *s, int opc, int arg, |
| 434 |
int arg1, tcg_target_long arg2)
|
| 435 |
{
|
| 436 |
if (arg2 == (int16_t) arg2) {
|
| 437 |
tcg_out_opc_imm(s, opc, arg, arg1, arg2); |
| 438 |
} else {
|
| 439 |
tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_AT, arg2); |
| 440 |
tcg_out_opc_reg(s, OPC_ADDU, TCG_REG_AT, TCG_REG_AT, arg1); |
| 441 |
tcg_out_opc_imm(s, opc, arg, TCG_REG_AT, 0);
|
| 442 |
} |
| 443 |
} |
| 444 |
|
| 445 |
static inline void tcg_out_ld(TCGContext *s, TCGType type, int arg, |
| 446 |
int arg1, tcg_target_long arg2)
|
| 447 |
{
|
| 448 |
tcg_out_ldst(s, OPC_LW, arg, arg1, arg2); |
| 449 |
} |
| 450 |
|
| 451 |
static inline void tcg_out_st(TCGContext *s, TCGType type, int arg, |
| 452 |
int arg1, tcg_target_long arg2)
|
| 453 |
{
|
| 454 |
tcg_out_ldst(s, OPC_SW, arg, arg1, arg2); |
| 455 |
} |
| 456 |
|
| 457 |
static inline void tcg_out_addi(TCGContext *s, int reg, tcg_target_long val) |
| 458 |
{
|
| 459 |
if (val == (int16_t)val) {
|
| 460 |
tcg_out_opc_imm(s, OPC_ADDIU, reg, reg, val); |
| 461 |
} else {
|
| 462 |
tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_AT, val); |
| 463 |
tcg_out_opc_reg(s, OPC_ADDU, reg, reg, TCG_REG_AT); |
| 464 |
} |
| 465 |
} |
| 466 |
|
| 467 |
static void tcg_out_brcond(TCGContext *s, int cond, int arg1, |
| 468 |
int arg2, int label_index) |
| 469 |
{
|
| 470 |
TCGLabel *l = &s->labels[label_index]; |
| 471 |
|
| 472 |
switch (cond) {
|
| 473 |
case TCG_COND_EQ:
|
| 474 |
tcg_out_opc_imm(s, OPC_BEQ, arg1, arg2, 0);
|
| 475 |
break;
|
| 476 |
case TCG_COND_NE:
|
| 477 |
tcg_out_opc_imm(s, OPC_BNE, arg1, arg2, 0);
|
| 478 |
break;
|
| 479 |
case TCG_COND_LT:
|
| 480 |
tcg_out_opc_reg(s, OPC_SLT, TCG_REG_AT, arg1, arg2); |
| 481 |
tcg_out_opc_imm(s, OPC_BNE, TCG_REG_AT, TCG_REG_ZERO, 0);
|
| 482 |
break;
|
| 483 |
case TCG_COND_LTU:
|
| 484 |
tcg_out_opc_reg(s, OPC_SLTU, TCG_REG_AT, arg1, arg2); |
| 485 |
tcg_out_opc_imm(s, OPC_BNE, TCG_REG_AT, TCG_REG_ZERO, 0);
|
| 486 |
break;
|
| 487 |
case TCG_COND_GE:
|
| 488 |
tcg_out_opc_reg(s, OPC_SLT, TCG_REG_AT, arg1, arg2); |
| 489 |
tcg_out_opc_imm(s, OPC_BEQ, TCG_REG_AT, TCG_REG_ZERO, 0);
|
| 490 |
break;
|
| 491 |
case TCG_COND_GEU:
|
| 492 |
tcg_out_opc_reg(s, OPC_SLTU, TCG_REG_AT, arg1, arg2); |
| 493 |
tcg_out_opc_imm(s, OPC_BEQ, TCG_REG_AT, TCG_REG_ZERO, 0);
|
| 494 |
break;
|
| 495 |
case TCG_COND_LE:
|
| 496 |
tcg_out_opc_reg(s, OPC_SLT, TCG_REG_AT, arg2, arg1); |
| 497 |
tcg_out_opc_imm(s, OPC_BEQ, TCG_REG_AT, TCG_REG_ZERO, 0);
|
| 498 |
break;
|
| 499 |
case TCG_COND_LEU:
|
| 500 |
tcg_out_opc_reg(s, OPC_SLTU, TCG_REG_AT, arg2, arg1); |
| 501 |
tcg_out_opc_imm(s, OPC_BEQ, TCG_REG_AT, TCG_REG_ZERO, 0);
|
| 502 |
break;
|
| 503 |
case TCG_COND_GT:
|
| 504 |
tcg_out_opc_reg(s, OPC_SLT, TCG_REG_AT, arg2, arg1); |
| 505 |
tcg_out_opc_imm(s, OPC_BNE, TCG_REG_AT, TCG_REG_ZERO, 0);
|
| 506 |
break;
|
| 507 |
case TCG_COND_GTU:
|
| 508 |
tcg_out_opc_reg(s, OPC_SLTU, TCG_REG_AT, arg2, arg1); |
| 509 |
tcg_out_opc_imm(s, OPC_BNE, TCG_REG_AT, TCG_REG_ZERO, 0);
|
| 510 |
break;
|
| 511 |
default:
|
| 512 |
tcg_abort(); |
| 513 |
break;
|
| 514 |
} |
| 515 |
if (l->has_value) {
|
| 516 |
reloc_pc16(s->code_ptr - 4, l->u.value);
|
| 517 |
} else {
|
| 518 |
tcg_out_reloc(s, s->code_ptr - 4, R_MIPS_PC16, label_index, 0); |
| 519 |
} |
| 520 |
tcg_out_nop(s); |
| 521 |
} |
| 522 |
|
| 523 |
/* XXX: we implement it at the target level to avoid having to
|
| 524 |
handle cross basic blocks temporaries */
|
| 525 |
static void tcg_out_brcond2(TCGContext *s, int cond, int arg1, |
| 526 |
int arg2, int arg3, int arg4, int label_index) |
| 527 |
{
|
| 528 |
void *label_ptr;
|
| 529 |
|
| 530 |
switch(cond) {
|
| 531 |
case TCG_COND_NE:
|
| 532 |
tcg_out_brcond(s, TCG_COND_NE, arg2, arg4, label_index); |
| 533 |
tcg_out_brcond(s, TCG_COND_NE, arg1, arg3, label_index); |
| 534 |
return;
|
| 535 |
case TCG_COND_EQ:
|
| 536 |
break;
|
| 537 |
case TCG_COND_LT:
|
| 538 |
case TCG_COND_LE:
|
| 539 |
tcg_out_brcond(s, TCG_COND_LT, arg2, arg4, label_index); |
| 540 |
break;
|
| 541 |
case TCG_COND_GT:
|
| 542 |
case TCG_COND_GE:
|
| 543 |
tcg_out_brcond(s, TCG_COND_GT, arg2, arg4, label_index); |
| 544 |
break;
|
| 545 |
case TCG_COND_LTU:
|
| 546 |
case TCG_COND_LEU:
|
| 547 |
tcg_out_brcond(s, TCG_COND_LTU, arg2, arg4, label_index); |
| 548 |
break;
|
| 549 |
case TCG_COND_GTU:
|
| 550 |
case TCG_COND_GEU:
|
| 551 |
tcg_out_brcond(s, TCG_COND_GTU, arg2, arg4, label_index); |
| 552 |
break;
|
| 553 |
default:
|
| 554 |
tcg_abort(); |
| 555 |
} |
| 556 |
|
| 557 |
label_ptr = s->code_ptr; |
| 558 |
tcg_out_opc_imm(s, OPC_BNE, arg2, arg4, 0);
|
| 559 |
tcg_out_nop(s); |
| 560 |
|
| 561 |
switch(cond) {
|
| 562 |
case TCG_COND_EQ:
|
| 563 |
tcg_out_brcond(s, TCG_COND_EQ, arg1, arg3, label_index); |
| 564 |
break;
|
| 565 |
case TCG_COND_LT:
|
| 566 |
case TCG_COND_LTU:
|
| 567 |
tcg_out_brcond(s, TCG_COND_LTU, arg1, arg3, label_index); |
| 568 |
break;
|
| 569 |
case TCG_COND_LE:
|
| 570 |
case TCG_COND_LEU:
|
| 571 |
tcg_out_brcond(s, TCG_COND_LEU, arg1, arg3, label_index); |
| 572 |
break;
|
| 573 |
case TCG_COND_GT:
|
| 574 |
case TCG_COND_GTU:
|
| 575 |
tcg_out_brcond(s, TCG_COND_GTU, arg1, arg3, label_index); |
| 576 |
break;
|
| 577 |
case TCG_COND_GE:
|
| 578 |
case TCG_COND_GEU:
|
| 579 |
tcg_out_brcond(s, TCG_COND_GEU, arg1, arg3, label_index); |
| 580 |
break;
|
| 581 |
default:
|
| 582 |
tcg_abort(); |
| 583 |
} |
| 584 |
|
| 585 |
reloc_pc16(label_ptr, (tcg_target_long) s->code_ptr); |
| 586 |
} |
| 587 |
|
| 588 |
static void tcg_out_setcond(TCGContext *s, int cond, int ret, |
| 589 |
int arg1, int arg2) |
| 590 |
{
|
| 591 |
switch (cond) {
|
| 592 |
case TCG_COND_EQ:
|
| 593 |
if (arg1 == 0) { |
| 594 |
tcg_out_opc_imm(s, OPC_SLTIU, ret, arg2, 1);
|
| 595 |
} else if (arg2 == 0) { |
| 596 |
tcg_out_opc_imm(s, OPC_SLTIU, ret, arg1, 1);
|
| 597 |
} else {
|
| 598 |
tcg_out_opc_reg(s, OPC_XOR, ret, arg1, arg2); |
| 599 |
tcg_out_opc_imm(s, OPC_SLTIU, ret, ret, 1);
|
| 600 |
} |
| 601 |
break;
|
| 602 |
case TCG_COND_NE:
|
| 603 |
if (arg1 == 0) { |
| 604 |
tcg_out_opc_reg(s, OPC_SLTU, ret, TCG_REG_ZERO, arg2); |
| 605 |
} else if (arg2 == 0) { |
| 606 |
tcg_out_opc_reg(s, OPC_SLTU, ret, TCG_REG_ZERO, arg1); |
| 607 |
} else {
|
| 608 |
tcg_out_opc_reg(s, OPC_XOR, ret, arg1, arg2); |
| 609 |
tcg_out_opc_reg(s, OPC_SLTU, ret, TCG_REG_ZERO, ret); |
| 610 |
} |
| 611 |
break;
|
| 612 |
case TCG_COND_LT:
|
| 613 |
tcg_out_opc_reg(s, OPC_SLT, ret, arg1, arg2); |
| 614 |
break;
|
| 615 |
case TCG_COND_LTU:
|
| 616 |
tcg_out_opc_reg(s, OPC_SLTU, ret, arg1, arg2); |
| 617 |
break;
|
| 618 |
case TCG_COND_GE:
|
| 619 |
tcg_out_opc_reg(s, OPC_SLT, ret, arg1, arg2); |
| 620 |
tcg_out_opc_imm(s, OPC_XORI, ret, ret, 1);
|
| 621 |
break;
|
| 622 |
case TCG_COND_GEU:
|
| 623 |
tcg_out_opc_reg(s, OPC_SLTU, ret, arg1, arg2); |
| 624 |
tcg_out_opc_imm(s, OPC_XORI, ret, ret, 1);
|
| 625 |
break;
|
| 626 |
case TCG_COND_LE:
|
| 627 |
tcg_out_opc_reg(s, OPC_SLT, ret, arg2, arg1); |
| 628 |
tcg_out_opc_imm(s, OPC_XORI, ret, ret, 1);
|
| 629 |
break;
|
| 630 |
case TCG_COND_LEU:
|
| 631 |
tcg_out_opc_reg(s, OPC_SLTU, ret, arg2, arg1); |
| 632 |
tcg_out_opc_imm(s, OPC_XORI, ret, ret, 1);
|
| 633 |
break;
|
| 634 |
case TCG_COND_GT:
|
| 635 |
tcg_out_opc_reg(s, OPC_SLT, ret, arg2, arg1); |
| 636 |
break;
|
| 637 |
case TCG_COND_GTU:
|
| 638 |
tcg_out_opc_reg(s, OPC_SLTU, ret, arg2, arg1); |
| 639 |
break;
|
| 640 |
default:
|
| 641 |
tcg_abort(); |
| 642 |
break;
|
| 643 |
} |
| 644 |
} |
| 645 |
|
| 646 |
/* XXX: we implement it at the target level to avoid having to
|
| 647 |
handle cross basic blocks temporaries */
|
| 648 |
static void tcg_out_setcond2(TCGContext *s, int cond, int ret, |
| 649 |
int arg1, int arg2, int arg3, int arg4) |
| 650 |
{
|
| 651 |
switch (cond) {
|
| 652 |
case TCG_COND_EQ:
|
| 653 |
tcg_out_setcond(s, TCG_COND_EQ, TCG_REG_AT, arg2, arg4); |
| 654 |
tcg_out_setcond(s, TCG_COND_EQ, TCG_REG_T0, arg1, arg3); |
| 655 |
tcg_out_opc_reg(s, OPC_AND, ret, TCG_REG_AT, TCG_REG_T0); |
| 656 |
return;
|
| 657 |
case TCG_COND_NE:
|
| 658 |
tcg_out_setcond(s, TCG_COND_NE, TCG_REG_AT, arg2, arg4); |
| 659 |
tcg_out_setcond(s, TCG_COND_NE, TCG_REG_T0, arg1, arg3); |
| 660 |
tcg_out_opc_reg(s, OPC_OR, ret, TCG_REG_AT, TCG_REG_T0); |
| 661 |
return;
|
| 662 |
case TCG_COND_LT:
|
| 663 |
case TCG_COND_LE:
|
| 664 |
tcg_out_setcond(s, TCG_COND_LT, TCG_REG_AT, arg2, arg4); |
| 665 |
break;
|
| 666 |
case TCG_COND_GT:
|
| 667 |
case TCG_COND_GE:
|
| 668 |
tcg_out_setcond(s, TCG_COND_GT, TCG_REG_AT, arg2, arg4); |
| 669 |
break;
|
| 670 |
case TCG_COND_LTU:
|
| 671 |
case TCG_COND_LEU:
|
| 672 |
tcg_out_setcond(s, TCG_COND_LTU, TCG_REG_AT, arg2, arg4); |
| 673 |
break;
|
| 674 |
case TCG_COND_GTU:
|
| 675 |
case TCG_COND_GEU:
|
| 676 |
tcg_out_setcond(s, TCG_COND_GTU, TCG_REG_AT, arg2, arg4); |
| 677 |
break;
|
| 678 |
default:
|
| 679 |
tcg_abort(); |
| 680 |
break;
|
| 681 |
} |
| 682 |
|
| 683 |
tcg_out_setcond(s, TCG_COND_EQ, TCG_REG_T0, arg2, arg4); |
| 684 |
|
| 685 |
switch(cond) {
|
| 686 |
case TCG_COND_LT:
|
| 687 |
case TCG_COND_LTU:
|
| 688 |
tcg_out_setcond(s, TCG_COND_LTU, ret, arg1, arg3); |
| 689 |
break;
|
| 690 |
case TCG_COND_LE:
|
| 691 |
case TCG_COND_LEU:
|
| 692 |
tcg_out_setcond(s, TCG_COND_LEU, ret, arg1, arg3); |
| 693 |
break;
|
| 694 |
case TCG_COND_GT:
|
| 695 |
case TCG_COND_GTU:
|
| 696 |
tcg_out_setcond(s, TCG_COND_GTU, ret, arg1, arg3); |
| 697 |
break;
|
| 698 |
case TCG_COND_GE:
|
| 699 |
case TCG_COND_GEU:
|
| 700 |
tcg_out_setcond(s, TCG_COND_GEU, ret, arg1, arg3); |
| 701 |
break;
|
| 702 |
default:
|
| 703 |
tcg_abort(); |
| 704 |
} |
| 705 |
|
| 706 |
tcg_out_opc_reg(s, OPC_AND, ret, ret, TCG_REG_T0); |
| 707 |
tcg_out_opc_reg(s, OPC_OR, ret, ret, TCG_REG_AT); |
| 708 |
} |
| 709 |
|
| 710 |
#if defined(CONFIG_SOFTMMU)
|
| 711 |
|
| 712 |
#include "../../softmmu_defs.h" |
| 713 |
|
| 714 |
static void *qemu_ld_helpers[4] = { |
| 715 |
__ldb_mmu, |
| 716 |
__ldw_mmu, |
| 717 |
__ldl_mmu, |
| 718 |
__ldq_mmu, |
| 719 |
}; |
| 720 |
|
| 721 |
static void *qemu_st_helpers[4] = { |
| 722 |
__stb_mmu, |
| 723 |
__stw_mmu, |
| 724 |
__stl_mmu, |
| 725 |
__stq_mmu, |
| 726 |
}; |
| 727 |
#endif
|
| 728 |
|
| 729 |
static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, |
| 730 |
int opc)
|
| 731 |
{
|
| 732 |
int addr_regl, addr_reg1, addr_meml;
|
| 733 |
int data_regl, data_regh, data_reg1, data_reg2;
|
| 734 |
int mem_index, s_bits;
|
| 735 |
#if defined(CONFIG_SOFTMMU)
|
| 736 |
void *label1_ptr, *label2_ptr;
|
| 737 |
int sp_args;
|
| 738 |
#endif
|
| 739 |
#if TARGET_LONG_BITS == 64 |
| 740 |
# if defined(CONFIG_SOFTMMU)
|
| 741 |
uint8_t *label3_ptr; |
| 742 |
# endif
|
| 743 |
int addr_regh, addr_reg2, addr_memh;
|
| 744 |
#endif
|
| 745 |
data_regl = *args++; |
| 746 |
if (opc == 3) |
| 747 |
data_regh = *args++; |
| 748 |
else
|
| 749 |
data_regh = 0;
|
| 750 |
addr_regl = *args++; |
| 751 |
#if TARGET_LONG_BITS == 64 |
| 752 |
addr_regh = *args++; |
| 753 |
#endif
|
| 754 |
mem_index = *args; |
| 755 |
s_bits = opc & 3;
|
| 756 |
|
| 757 |
if (opc == 3) { |
| 758 |
#if defined(TCG_TARGET_WORDS_BIGENDIAN)
|
| 759 |
data_reg1 = data_regh; |
| 760 |
data_reg2 = data_regl; |
| 761 |
#else
|
| 762 |
data_reg1 = data_regl; |
| 763 |
data_reg2 = data_regh; |
| 764 |
#endif
|
| 765 |
} else {
|
| 766 |
data_reg1 = data_regl; |
| 767 |
data_reg2 = 0;
|
| 768 |
} |
| 769 |
#if TARGET_LONG_BITS == 64 |
| 770 |
# if defined(TCG_TARGET_WORDS_BIGENDIAN)
|
| 771 |
addr_reg1 = addr_regh; |
| 772 |
addr_reg2 = addr_regl; |
| 773 |
addr_memh = 0;
|
| 774 |
addr_meml = 4;
|
| 775 |
# else
|
| 776 |
addr_reg1 = addr_regl; |
| 777 |
addr_reg2 = addr_regh; |
| 778 |
addr_memh = 4;
|
| 779 |
addr_meml = 0;
|
| 780 |
# endif
|
| 781 |
#else
|
| 782 |
addr_reg1 = addr_regl; |
| 783 |
addr_meml = 0;
|
| 784 |
#endif
|
| 785 |
|
| 786 |
#if defined(CONFIG_SOFTMMU)
|
| 787 |
tcg_out_opc_sa(s, OPC_SRL, TCG_REG_A0, addr_regl, TARGET_PAGE_BITS - CPU_TLB_ENTRY_BITS); |
| 788 |
tcg_out_opc_imm(s, OPC_ANDI, TCG_REG_A0, TCG_REG_A0, (CPU_TLB_SIZE - 1) << CPU_TLB_ENTRY_BITS);
|
| 789 |
tcg_out_opc_reg(s, OPC_ADDU, TCG_REG_A0, TCG_REG_A0, TCG_AREG0); |
| 790 |
tcg_out_opc_imm(s, OPC_LW, TCG_REG_AT, TCG_REG_A0, |
| 791 |
offsetof(CPUState, tlb_table[mem_index][0].addr_read) + addr_meml);
|
| 792 |
tcg_out_movi(s, TCG_TYPE_I32, TCG_REG_T0, TARGET_PAGE_MASK | ((1 << s_bits) - 1)); |
| 793 |
tcg_out_opc_reg(s, OPC_AND, TCG_REG_T0, TCG_REG_T0, addr_regl); |
| 794 |
|
| 795 |
# if TARGET_LONG_BITS == 64 |
| 796 |
label3_ptr = s->code_ptr; |
| 797 |
tcg_out_opc_imm(s, OPC_BNE, TCG_REG_T0, TCG_REG_AT, 0);
|
| 798 |
tcg_out_nop(s); |
| 799 |
|
| 800 |
tcg_out_opc_imm(s, OPC_LW, TCG_REG_AT, TCG_REG_A0, |
| 801 |
offsetof(CPUState, tlb_table[mem_index][0].addr_read) + addr_memh);
|
| 802 |
|
| 803 |
label1_ptr = s->code_ptr; |
| 804 |
tcg_out_opc_imm(s, OPC_BEQ, addr_regh, TCG_REG_AT, 0);
|
| 805 |
tcg_out_nop(s); |
| 806 |
|
| 807 |
reloc_pc16(label3_ptr, (tcg_target_long) s->code_ptr); |
| 808 |
# else
|
| 809 |
label1_ptr = s->code_ptr; |
| 810 |
tcg_out_opc_imm(s, OPC_BEQ, TCG_REG_T0, TCG_REG_AT, 0);
|
| 811 |
tcg_out_nop(s); |
| 812 |
# endif
|
| 813 |
|
| 814 |
/* slow path */
|
| 815 |
sp_args = TCG_REG_A0; |
| 816 |
tcg_out_mov(s, sp_args++, addr_reg1); |
| 817 |
# if TARGET_LONG_BITS == 64 |
| 818 |
tcg_out_mov(s, sp_args++, addr_reg2); |
| 819 |
# endif
|
| 820 |
tcg_out_movi(s, TCG_TYPE_I32, sp_args++, mem_index); |
| 821 |
tcg_out_movi(s, TCG_TYPE_I32, TCG_REG_T9, (tcg_target_long)qemu_ld_helpers[s_bits]); |
| 822 |
tcg_out_opc_reg(s, OPC_JALR, TCG_REG_RA, TCG_REG_T9, 0);
|
| 823 |
tcg_out_nop(s); |
| 824 |
|
| 825 |
switch(opc) {
|
| 826 |
case 0: |
| 827 |
tcg_out_opc_imm(s, OPC_ANDI, data_reg1, TCG_REG_V0, 0xff);
|
| 828 |
break;
|
| 829 |
case 0 | 4: |
| 830 |
tcg_out_opc_sa(s, OPC_SLL, TCG_REG_V0, TCG_REG_V0, 24);
|
| 831 |
tcg_out_opc_sa(s, OPC_SRA, data_reg1, TCG_REG_V0, 24);
|
| 832 |
break;
|
| 833 |
case 1: |
| 834 |
tcg_out_opc_imm(s, OPC_ANDI, data_reg1, TCG_REG_V0, 0xffff);
|
| 835 |
break;
|
| 836 |
case 1 | 4: |
| 837 |
tcg_out_opc_sa(s, OPC_SLL, TCG_REG_V0, TCG_REG_V0, 16);
|
| 838 |
tcg_out_opc_sa(s, OPC_SRA, data_reg1, TCG_REG_V0, 16);
|
| 839 |
break;
|
| 840 |
case 2: |
| 841 |
tcg_out_mov(s, data_reg1, TCG_REG_V0); |
| 842 |
break;
|
| 843 |
case 3: |
| 844 |
tcg_out_mov(s, data_reg2, TCG_REG_V1); |
| 845 |
tcg_out_mov(s, data_reg1, TCG_REG_V0); |
| 846 |
break;
|
| 847 |
default:
|
| 848 |
tcg_abort(); |
| 849 |
} |
| 850 |
|
| 851 |
label2_ptr = s->code_ptr; |
| 852 |
tcg_out_opc_imm(s, OPC_BEQ, TCG_REG_ZERO, TCG_REG_ZERO, 0);
|
| 853 |
tcg_out_nop(s); |
| 854 |
|
| 855 |
/* label1: fast path */
|
| 856 |
reloc_pc16(label1_ptr, (tcg_target_long) s->code_ptr); |
| 857 |
|
| 858 |
tcg_out_opc_imm(s, OPC_LW, TCG_REG_A0, TCG_REG_A0, |
| 859 |
offsetof(CPUState, tlb_table[mem_index][0].addend) + addr_meml);
|
| 860 |
tcg_out_opc_reg(s, OPC_ADDU, TCG_REG_V0, TCG_REG_A0, addr_regl); |
| 861 |
|
| 862 |
addr_reg1 = TCG_REG_V0; |
| 863 |
#endif
|
| 864 |
|
| 865 |
switch(opc) {
|
| 866 |
case 0: |
| 867 |
tcg_out_opc_imm(s, OPC_LBU, data_reg1, addr_reg1, 0);
|
| 868 |
break;
|
| 869 |
case 0 | 4: |
| 870 |
tcg_out_opc_imm(s, OPC_LB, data_reg1, addr_reg1, 0);
|
| 871 |
break;
|
| 872 |
case 1: |
| 873 |
if (TCG_NEED_BSWAP) {
|
| 874 |
tcg_out_opc_imm(s, OPC_LHU, TCG_REG_T0, addr_reg1, 0);
|
| 875 |
tcg_out_bswap16(s, data_reg1, TCG_REG_T0); |
| 876 |
} else {
|
| 877 |
tcg_out_opc_imm(s, OPC_LHU, data_reg1, addr_reg1, 0);
|
| 878 |
} |
| 879 |
break;
|
| 880 |
case 1 | 4: |
| 881 |
if (TCG_NEED_BSWAP) {
|
| 882 |
tcg_out_opc_imm(s, OPC_LHU, TCG_REG_T0, addr_reg1, 0);
|
| 883 |
tcg_out_bswap16s(s, data_reg1, TCG_REG_T0); |
| 884 |
} else {
|
| 885 |
tcg_out_opc_imm(s, OPC_LH, data_reg1, addr_reg1, 0);
|
| 886 |
} |
| 887 |
break;
|
| 888 |
case 2: |
| 889 |
if (TCG_NEED_BSWAP) {
|
| 890 |
tcg_out_opc_imm(s, OPC_LW, TCG_REG_T0, addr_reg1, 0);
|
| 891 |
tcg_out_bswap32(s, data_reg1, TCG_REG_T0); |
| 892 |
} else {
|
| 893 |
tcg_out_opc_imm(s, OPC_LW, data_reg1, addr_reg1, 0);
|
| 894 |
} |
| 895 |
break;
|
| 896 |
case 3: |
| 897 |
#if !defined(CONFIG_SOFTMMU)
|
| 898 |
tcg_out_mov(s, TCG_REG_V0, addr_reg1); |
| 899 |
addr_reg1 = TCG_REG_V0; |
| 900 |
#endif
|
| 901 |
if (TCG_NEED_BSWAP) {
|
| 902 |
tcg_out_opc_imm(s, OPC_LW, TCG_REG_T0, addr_reg1, 4);
|
| 903 |
tcg_out_bswap32(s, data_reg1, TCG_REG_T0); |
| 904 |
tcg_out_opc_imm(s, OPC_LW, TCG_REG_T0, addr_reg1, 0);
|
| 905 |
tcg_out_bswap32(s, data_reg2, TCG_REG_T0); |
| 906 |
} else {
|
| 907 |
tcg_out_opc_imm(s, OPC_LW, data_reg1, addr_reg1, 0);
|
| 908 |
tcg_out_opc_imm(s, OPC_LW, data_reg2, addr_reg1, 4);
|
| 909 |
} |
| 910 |
break;
|
| 911 |
default:
|
| 912 |
tcg_abort(); |
| 913 |
} |
| 914 |
|
| 915 |
#if defined(CONFIG_SOFTMMU)
|
| 916 |
reloc_pc16(label2_ptr, (tcg_target_long) s->code_ptr); |
| 917 |
#endif
|
| 918 |
} |
| 919 |
|
| 920 |
static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args, |
| 921 |
int opc)
|
| 922 |
{
|
| 923 |
int addr_regl, addr_reg1, addr_meml;
|
| 924 |
int data_regl, data_regh, data_reg1, data_reg2;
|
| 925 |
int mem_index, s_bits;
|
| 926 |
#if defined(CONFIG_SOFTMMU)
|
| 927 |
uint8_t *label1_ptr, *label2_ptr; |
| 928 |
int sp_args;
|
| 929 |
#endif
|
| 930 |
#if TARGET_LONG_BITS == 64 |
| 931 |
# if defined(CONFIG_SOFTMMU)
|
| 932 |
uint8_t *label3_ptr; |
| 933 |
# endif
|
| 934 |
int addr_regh, addr_reg2, addr_memh;
|
| 935 |
#endif
|
| 936 |
|
| 937 |
data_regl = *args++; |
| 938 |
if (opc == 3) { |
| 939 |
data_regh = *args++; |
| 940 |
#if defined(TCG_TARGET_WORDS_BIGENDIAN)
|
| 941 |
data_reg1 = data_regh; |
| 942 |
data_reg2 = data_regl; |
| 943 |
#else
|
| 944 |
data_reg1 = data_regl; |
| 945 |
data_reg2 = data_regh; |
| 946 |
#endif
|
| 947 |
} else {
|
| 948 |
data_reg1 = data_regl; |
| 949 |
data_reg2 = 0;
|
| 950 |
data_regh = 0;
|
| 951 |
} |
| 952 |
addr_regl = *args++; |
| 953 |
#if TARGET_LONG_BITS == 64 |
| 954 |
addr_regh = *args++; |
| 955 |
# if defined(TCG_TARGET_WORDS_BIGENDIAN)
|
| 956 |
addr_reg1 = addr_regh; |
| 957 |
addr_reg2 = addr_regl; |
| 958 |
addr_memh = 0;
|
| 959 |
addr_meml = 4;
|
| 960 |
# else
|
| 961 |
addr_reg1 = addr_regl; |
| 962 |
addr_reg2 = addr_regh; |
| 963 |
addr_memh = 4;
|
| 964 |
addr_meml = 0;
|
| 965 |
# endif
|
| 966 |
#else
|
| 967 |
addr_reg1 = addr_regl; |
| 968 |
addr_meml = 0;
|
| 969 |
#endif
|
| 970 |
mem_index = *args; |
| 971 |
s_bits = opc; |
| 972 |
|
| 973 |
#if defined(CONFIG_SOFTMMU)
|
| 974 |
tcg_out_opc_sa(s, OPC_SRL, TCG_REG_A0, addr_regl, TARGET_PAGE_BITS - CPU_TLB_ENTRY_BITS); |
| 975 |
tcg_out_opc_imm(s, OPC_ANDI, TCG_REG_A0, TCG_REG_A0, (CPU_TLB_SIZE - 1) << CPU_TLB_ENTRY_BITS);
|
| 976 |
tcg_out_opc_reg(s, OPC_ADDU, TCG_REG_A0, TCG_REG_A0, TCG_AREG0); |
| 977 |
tcg_out_opc_imm(s, OPC_LW, TCG_REG_AT, TCG_REG_A0, |
| 978 |
offsetof(CPUState, tlb_table[mem_index][0].addr_write) + addr_meml);
|
| 979 |
tcg_out_movi(s, TCG_TYPE_I32, TCG_REG_T0, TARGET_PAGE_MASK | ((1 << s_bits) - 1)); |
| 980 |
tcg_out_opc_reg(s, OPC_AND, TCG_REG_T0, TCG_REG_T0, addr_regl); |
| 981 |
|
| 982 |
# if TARGET_LONG_BITS == 64 |
| 983 |
label3_ptr = s->code_ptr; |
| 984 |
tcg_out_opc_imm(s, OPC_BNE, TCG_REG_T0, TCG_REG_AT, 0);
|
| 985 |
tcg_out_nop(s); |
| 986 |
|
| 987 |
tcg_out_opc_imm(s, OPC_LW, TCG_REG_AT, TCG_REG_A0, |
| 988 |
offsetof(CPUState, tlb_table[mem_index][0].addr_write) + addr_memh);
|
| 989 |
|
| 990 |
label1_ptr = s->code_ptr; |
| 991 |
tcg_out_opc_imm(s, OPC_BEQ, addr_regh, TCG_REG_AT, 0);
|
| 992 |
tcg_out_nop(s); |
| 993 |
|
| 994 |
reloc_pc16(label3_ptr, (tcg_target_long) s->code_ptr); |
| 995 |
# else
|
| 996 |
label1_ptr = s->code_ptr; |
| 997 |
tcg_out_opc_imm(s, OPC_BEQ, TCG_REG_T0, TCG_REG_AT, 0);
|
| 998 |
tcg_out_nop(s); |
| 999 |
# endif
|
| 1000 |
|
| 1001 |
/* slow path */
|
| 1002 |
sp_args = TCG_REG_A0; |
| 1003 |
tcg_out_mov(s, sp_args++, addr_reg1); |
| 1004 |
# if TARGET_LONG_BITS == 64 |
| 1005 |
tcg_out_mov(s, sp_args++, addr_reg2); |
| 1006 |
# endif
|
| 1007 |
switch(opc) {
|
| 1008 |
case 0: |
| 1009 |
tcg_out_opc_imm(s, OPC_ANDI, sp_args++, data_reg1, 0xff);
|
| 1010 |
break;
|
| 1011 |
case 1: |
| 1012 |
tcg_out_opc_imm(s, OPC_ANDI, sp_args++, data_reg1, 0xffff);
|
| 1013 |
break;
|
| 1014 |
case 2: |
| 1015 |
tcg_out_mov(s, sp_args++, data_reg1); |
| 1016 |
break;
|
| 1017 |
case 3: |
| 1018 |
sp_args = (sp_args + 1) & ~1; |
| 1019 |
tcg_out_mov(s, sp_args++, data_reg1); |
| 1020 |
tcg_out_mov(s, sp_args++, data_reg2); |
| 1021 |
break;
|
| 1022 |
default:
|
| 1023 |
tcg_abort(); |
| 1024 |
} |
| 1025 |
if (sp_args > TCG_REG_A3) {
|
| 1026 |
/* Push mem_index on the stack */
|
| 1027 |
tcg_out_movi(s, TCG_TYPE_I32, TCG_REG_AT, mem_index); |
| 1028 |
tcg_out_st(s, TCG_TYPE_I32, TCG_REG_AT, TCG_REG_SP, 16);
|
| 1029 |
} else {
|
| 1030 |
tcg_out_movi(s, TCG_TYPE_I32, sp_args, mem_index); |
| 1031 |
} |
| 1032 |
|
| 1033 |
tcg_out_movi(s, TCG_TYPE_I32, TCG_REG_T9, (tcg_target_long)qemu_st_helpers[s_bits]); |
| 1034 |
tcg_out_opc_reg(s, OPC_JALR, TCG_REG_RA, TCG_REG_T9, 0);
|
| 1035 |
tcg_out_nop(s); |
| 1036 |
|
| 1037 |
label2_ptr = s->code_ptr; |
| 1038 |
tcg_out_opc_imm(s, OPC_BEQ, TCG_REG_ZERO, TCG_REG_ZERO, 0);
|
| 1039 |
tcg_out_nop(s); |
| 1040 |
|
| 1041 |
/* label1: fast path */
|
| 1042 |
reloc_pc16(label1_ptr, (tcg_target_long) s->code_ptr); |
| 1043 |
|
| 1044 |
tcg_out_opc_imm(s, OPC_LW, TCG_REG_A0, TCG_REG_A0, |
| 1045 |
offsetof(CPUState, tlb_table[mem_index][0].addend) + addr_meml);
|
| 1046 |
tcg_out_opc_reg(s, OPC_ADDU, TCG_REG_A0, TCG_REG_A0, addr_regl); |
| 1047 |
|
| 1048 |
addr_reg1 = TCG_REG_A0; |
| 1049 |
#endif
|
| 1050 |
|
| 1051 |
switch(opc) {
|
| 1052 |
case 0: |
| 1053 |
tcg_out_opc_imm(s, OPC_SB, data_reg1, addr_reg1, 0);
|
| 1054 |
break;
|
| 1055 |
case 1: |
| 1056 |
if (TCG_NEED_BSWAP) {
|
| 1057 |
tcg_out_bswap16(s, TCG_REG_T0, data_reg1); |
| 1058 |
tcg_out_opc_imm(s, OPC_SH, TCG_REG_T0, addr_reg1, 0);
|
| 1059 |
} else {
|
| 1060 |
tcg_out_opc_imm(s, OPC_SH, data_reg1, addr_reg1, 0);
|
| 1061 |
} |
| 1062 |
break;
|
| 1063 |
case 2: |
| 1064 |
if (TCG_NEED_BSWAP) {
|
| 1065 |
tcg_out_bswap32(s, TCG_REG_T0, data_reg1); |
| 1066 |
tcg_out_opc_imm(s, OPC_SW, TCG_REG_T0, addr_reg1, 0);
|
| 1067 |
} else {
|
| 1068 |
tcg_out_opc_imm(s, OPC_SW, data_reg1, addr_reg1, 0);
|
| 1069 |
} |
| 1070 |
break;
|
| 1071 |
case 3: |
| 1072 |
if (TCG_NEED_BSWAP) {
|
| 1073 |
tcg_out_bswap32(s, TCG_REG_T0, data_reg2); |
| 1074 |
tcg_out_opc_imm(s, OPC_SW, TCG_REG_T0, addr_reg1, 0);
|
| 1075 |
tcg_out_bswap32(s, TCG_REG_T0, data_reg1); |
| 1076 |
tcg_out_opc_imm(s, OPC_SW, TCG_REG_T0, addr_reg1, 4);
|
| 1077 |
} else {
|
| 1078 |
tcg_out_opc_imm(s, OPC_SW, data_reg1, addr_reg1, 0);
|
| 1079 |
tcg_out_opc_imm(s, OPC_SW, data_reg2, addr_reg1, 4);
|
| 1080 |
} |
| 1081 |
break;
|
| 1082 |
default:
|
| 1083 |
tcg_abort(); |
| 1084 |
} |
| 1085 |
|
| 1086 |
#if defined(CONFIG_SOFTMMU)
|
| 1087 |
reloc_pc16(label2_ptr, (tcg_target_long) s->code_ptr); |
| 1088 |
#endif
|
| 1089 |
} |
| 1090 |
|
| 1091 |
static inline void tcg_out_op(TCGContext *s, TCGOpcode opc, |
| 1092 |
const TCGArg *args, const int *const_args) |
| 1093 |
{
|
| 1094 |
switch(opc) {
|
| 1095 |
case INDEX_op_exit_tb:
|
| 1096 |
tcg_out_movi(s, TCG_TYPE_I32, TCG_REG_V0, args[0]);
|
| 1097 |
tcg_out_movi(s, TCG_TYPE_I32, TCG_REG_AT, (tcg_target_long)tb_ret_addr); |
| 1098 |
tcg_out_opc_reg(s, OPC_JR, 0, TCG_REG_AT, 0); |
| 1099 |
tcg_out_nop(s); |
| 1100 |
break;
|
| 1101 |
case INDEX_op_goto_tb:
|
| 1102 |
if (s->tb_jmp_offset) {
|
| 1103 |
/* direct jump method */
|
| 1104 |
tcg_abort(); |
| 1105 |
} else {
|
| 1106 |
/* indirect jump method */
|
| 1107 |
tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_AT, (tcg_target_long)(s->tb_next + args[0]));
|
| 1108 |
tcg_out_ld(s, TCG_TYPE_PTR, TCG_REG_AT, TCG_REG_AT, 0);
|
| 1109 |
tcg_out_opc_reg(s, OPC_JR, 0, TCG_REG_AT, 0); |
| 1110 |
} |
| 1111 |
tcg_out_nop(s); |
| 1112 |
s->tb_next_offset[args[0]] = s->code_ptr - s->code_buf;
|
| 1113 |
break;
|
| 1114 |
case INDEX_op_call:
|
| 1115 |
tcg_out_opc_reg(s, OPC_JALR, TCG_REG_RA, args[0], 0); |
| 1116 |
tcg_out_nop(s); |
| 1117 |
break;
|
| 1118 |
case INDEX_op_jmp:
|
| 1119 |
tcg_out_opc_reg(s, OPC_JR, 0, args[0], 0); |
| 1120 |
tcg_out_nop(s); |
| 1121 |
break;
|
| 1122 |
case INDEX_op_br:
|
| 1123 |
tcg_out_brcond(s, TCG_COND_EQ, TCG_REG_ZERO, TCG_REG_ZERO, args[0]);
|
| 1124 |
break;
|
| 1125 |
|
| 1126 |
case INDEX_op_mov_i32:
|
| 1127 |
tcg_out_mov(s, args[0], args[1]); |
| 1128 |
break;
|
| 1129 |
case INDEX_op_movi_i32:
|
| 1130 |
tcg_out_movi(s, TCG_TYPE_I32, args[0], args[1]); |
| 1131 |
break;
|
| 1132 |
|
| 1133 |
case INDEX_op_ld8u_i32:
|
| 1134 |
tcg_out_ldst(s, OPC_LBU, args[0], args[1], args[2]); |
| 1135 |
break;
|
| 1136 |
case INDEX_op_ld8s_i32:
|
| 1137 |
tcg_out_ldst(s, OPC_LB, args[0], args[1], args[2]); |
| 1138 |
break;
|
| 1139 |
case INDEX_op_ld16u_i32:
|
| 1140 |
tcg_out_ldst(s, OPC_LHU, args[0], args[1], args[2]); |
| 1141 |
break;
|
| 1142 |
case INDEX_op_ld16s_i32:
|
| 1143 |
tcg_out_ldst(s, OPC_LH, args[0], args[1], args[2]); |
| 1144 |
break;
|
| 1145 |
case INDEX_op_ld_i32:
|
| 1146 |
tcg_out_ldst(s, OPC_LW, args[0], args[1], args[2]); |
| 1147 |
break;
|
| 1148 |
case INDEX_op_st8_i32:
|
| 1149 |
tcg_out_ldst(s, OPC_SB, args[0], args[1], args[2]); |
| 1150 |
break;
|
| 1151 |
case INDEX_op_st16_i32:
|
| 1152 |
tcg_out_ldst(s, OPC_SH, args[0], args[1], args[2]); |
| 1153 |
break;
|
| 1154 |
case INDEX_op_st_i32:
|
| 1155 |
tcg_out_ldst(s, OPC_SW, args[0], args[1], args[2]); |
| 1156 |
break;
|
| 1157 |
|
| 1158 |
case INDEX_op_add_i32:
|
| 1159 |
if (const_args[2]) { |
| 1160 |
tcg_out_opc_imm(s, OPC_ADDIU, args[0], args[1], args[2]); |
| 1161 |
} else {
|
| 1162 |
tcg_out_opc_reg(s, OPC_ADDU, args[0], args[1], args[2]); |
| 1163 |
} |
| 1164 |
break;
|
| 1165 |
case INDEX_op_add2_i32:
|
| 1166 |
if (const_args[4]) { |
| 1167 |
tcg_out_opc_imm(s, OPC_ADDIU, TCG_REG_AT, args[2], args[4]); |
| 1168 |
} else {
|
| 1169 |
tcg_out_opc_reg(s, OPC_ADDU, TCG_REG_AT, args[2], args[4]); |
| 1170 |
} |
| 1171 |
tcg_out_opc_reg(s, OPC_SLTU, TCG_REG_T0, TCG_REG_AT, args[2]);
|
| 1172 |
if (const_args[5]) { |
| 1173 |
tcg_out_opc_imm(s, OPC_ADDIU, args[1], args[3], args[5]); |
| 1174 |
} else {
|
| 1175 |
tcg_out_opc_reg(s, OPC_ADDU, args[1], args[3], args[5]); |
| 1176 |
} |
| 1177 |
tcg_out_opc_reg(s, OPC_ADDU, args[1], args[1], TCG_REG_T0); |
| 1178 |
tcg_out_mov(s, args[0], TCG_REG_AT);
|
| 1179 |
break;
|
| 1180 |
case INDEX_op_sub_i32:
|
| 1181 |
if (const_args[2]) { |
| 1182 |
tcg_out_opc_imm(s, OPC_ADDIU, args[0], args[1], -args[2]); |
| 1183 |
} else {
|
| 1184 |
tcg_out_opc_reg(s, OPC_SUBU, args[0], args[1], args[2]); |
| 1185 |
} |
| 1186 |
break;
|
| 1187 |
case INDEX_op_sub2_i32:
|
| 1188 |
if (const_args[4]) { |
| 1189 |
tcg_out_opc_imm(s, OPC_ADDIU, TCG_REG_AT, args[2], -args[4]); |
| 1190 |
} else {
|
| 1191 |
tcg_out_opc_reg(s, OPC_SUBU, TCG_REG_AT, args[2], args[4]); |
| 1192 |
} |
| 1193 |
tcg_out_opc_reg(s, OPC_SLTU, TCG_REG_T0, args[2], TCG_REG_AT);
|
| 1194 |
if (const_args[5]) { |
| 1195 |
tcg_out_opc_imm(s, OPC_ADDIU, args[1], args[3], -args[5]); |
| 1196 |
} else {
|
| 1197 |
tcg_out_opc_reg(s, OPC_SUBU, args[1], args[3], args[5]); |
| 1198 |
} |
| 1199 |
tcg_out_opc_reg(s, OPC_SUBU, args[1], args[1], TCG_REG_T0); |
| 1200 |
tcg_out_mov(s, args[0], TCG_REG_AT);
|
| 1201 |
break;
|
| 1202 |
case INDEX_op_mul_i32:
|
| 1203 |
tcg_out_opc_reg(s, OPC_MULT, 0, args[1], args[2]); |
| 1204 |
tcg_out_opc_reg(s, OPC_MFLO, args[0], 0, 0); |
| 1205 |
break;
|
| 1206 |
case INDEX_op_mulu2_i32:
|
| 1207 |
tcg_out_opc_reg(s, OPC_MULTU, 0, args[2], args[3]); |
| 1208 |
tcg_out_opc_reg(s, OPC_MFLO, args[0], 0, 0); |
| 1209 |
tcg_out_opc_reg(s, OPC_MFHI, args[1], 0, 0); |
| 1210 |
break;
|
| 1211 |
case INDEX_op_div_i32:
|
| 1212 |
tcg_out_opc_reg(s, OPC_DIV, 0, args[1], args[2]); |
| 1213 |
tcg_out_opc_reg(s, OPC_MFLO, args[0], 0, 0); |
| 1214 |
break;
|
| 1215 |
case INDEX_op_divu_i32:
|
| 1216 |
tcg_out_opc_reg(s, OPC_DIVU, 0, args[1], args[2]); |
| 1217 |
tcg_out_opc_reg(s, OPC_MFLO, args[0], 0, 0); |
| 1218 |
break;
|
| 1219 |
case INDEX_op_rem_i32:
|
| 1220 |
tcg_out_opc_reg(s, OPC_DIV, 0, args[1], args[2]); |
| 1221 |
tcg_out_opc_reg(s, OPC_MFHI, args[0], 0, 0); |
| 1222 |
break;
|
| 1223 |
case INDEX_op_remu_i32:
|
| 1224 |
tcg_out_opc_reg(s, OPC_DIVU, 0, args[1], args[2]); |
| 1225 |
tcg_out_opc_reg(s, OPC_MFHI, args[0], 0, 0); |
| 1226 |
break;
|
| 1227 |
|
| 1228 |
case INDEX_op_and_i32:
|
| 1229 |
if (const_args[2]) { |
| 1230 |
tcg_out_opc_imm(s, OPC_ANDI, args[0], args[1], args[2]); |
| 1231 |
} else {
|
| 1232 |
tcg_out_opc_reg(s, OPC_AND, args[0], args[1], args[2]); |
| 1233 |
} |
| 1234 |
break;
|
| 1235 |
case INDEX_op_or_i32:
|
| 1236 |
if (const_args[2]) { |
| 1237 |
tcg_out_opc_imm(s, OPC_ORI, args[0], args[1], args[2]); |
| 1238 |
} else {
|
| 1239 |
tcg_out_opc_reg(s, OPC_OR, args[0], args[1], args[2]); |
| 1240 |
} |
| 1241 |
break;
|
| 1242 |
case INDEX_op_not_i32:
|
| 1243 |
tcg_out_opc_reg(s, OPC_NOR, args[0], args[1], args[1]); |
| 1244 |
break;
|
| 1245 |
case INDEX_op_xor_i32:
|
| 1246 |
if (const_args[2]) { |
| 1247 |
tcg_out_opc_imm(s, OPC_XORI, args[0], args[1], args[2]); |
| 1248 |
} else {
|
| 1249 |
tcg_out_opc_reg(s, OPC_XOR, args[0], args[1], args[2]); |
| 1250 |
} |
| 1251 |
break;
|
| 1252 |
|
| 1253 |
case INDEX_op_sar_i32:
|
| 1254 |
if (const_args[2]) { |
| 1255 |
tcg_out_opc_sa(s, OPC_SRA, args[0], args[1], args[2]); |
| 1256 |
} else {
|
| 1257 |
tcg_out_opc_reg(s, OPC_SRAV, args[0], args[2], args[1]); |
| 1258 |
} |
| 1259 |
break;
|
| 1260 |
case INDEX_op_shl_i32:
|
| 1261 |
if (const_args[2]) { |
| 1262 |
tcg_out_opc_sa(s, OPC_SLL, args[0], args[1], args[2]); |
| 1263 |
} else {
|
| 1264 |
tcg_out_opc_reg(s, OPC_SLLV, args[0], args[2], args[1]); |
| 1265 |
} |
| 1266 |
break;
|
| 1267 |
case INDEX_op_shr_i32:
|
| 1268 |
if (const_args[2]) { |
| 1269 |
tcg_out_opc_sa(s, OPC_SRL, args[0], args[1], args[2]); |
| 1270 |
} else {
|
| 1271 |
tcg_out_opc_reg(s, OPC_SRLV, args[0], args[2], args[1]); |
| 1272 |
} |
| 1273 |
break;
|
| 1274 |
|
| 1275 |
case INDEX_op_brcond_i32:
|
| 1276 |
tcg_out_brcond(s, args[2], args[0], args[1], args[3]); |
| 1277 |
break;
|
| 1278 |
case INDEX_op_brcond2_i32:
|
| 1279 |
tcg_out_brcond2(s, args[4], args[0], args[1], args[2], args[3], args[5]); |
| 1280 |
break;
|
| 1281 |
|
| 1282 |
case INDEX_op_setcond_i32:
|
| 1283 |
tcg_out_setcond(s, args[3], args[0], args[1], args[2]); |
| 1284 |
break;
|
| 1285 |
case INDEX_op_setcond2_i32:
|
| 1286 |
tcg_out_setcond2(s, args[5], args[0], args[1], args[2], args[3], args[4]); |
| 1287 |
break;
|
| 1288 |
|
| 1289 |
case INDEX_op_qemu_ld8u:
|
| 1290 |
tcg_out_qemu_ld(s, args, 0);
|
| 1291 |
break;
|
| 1292 |
case INDEX_op_qemu_ld8s:
|
| 1293 |
tcg_out_qemu_ld(s, args, 0 | 4); |
| 1294 |
break;
|
| 1295 |
case INDEX_op_qemu_ld16u:
|
| 1296 |
tcg_out_qemu_ld(s, args, 1);
|
| 1297 |
break;
|
| 1298 |
case INDEX_op_qemu_ld16s:
|
| 1299 |
tcg_out_qemu_ld(s, args, 1 | 4); |
| 1300 |
break;
|
| 1301 |
case INDEX_op_qemu_ld32u:
|
| 1302 |
tcg_out_qemu_ld(s, args, 2);
|
| 1303 |
break;
|
| 1304 |
case INDEX_op_qemu_ld64:
|
| 1305 |
tcg_out_qemu_ld(s, args, 3);
|
| 1306 |
break;
|
| 1307 |
case INDEX_op_qemu_st8:
|
| 1308 |
tcg_out_qemu_st(s, args, 0);
|
| 1309 |
break;
|
| 1310 |
case INDEX_op_qemu_st16:
|
| 1311 |
tcg_out_qemu_st(s, args, 1);
|
| 1312 |
break;
|
| 1313 |
case INDEX_op_qemu_st32:
|
| 1314 |
tcg_out_qemu_st(s, args, 2);
|
| 1315 |
break;
|
| 1316 |
case INDEX_op_qemu_st64:
|
| 1317 |
tcg_out_qemu_st(s, args, 3);
|
| 1318 |
break;
|
| 1319 |
|
| 1320 |
default:
|
| 1321 |
tcg_abort(); |
| 1322 |
} |
| 1323 |
} |
| 1324 |
|
| 1325 |
static const TCGTargetOpDef mips_op_defs[] = { |
| 1326 |
{ INDEX_op_exit_tb, { } },
|
| 1327 |
{ INDEX_op_goto_tb, { } },
|
| 1328 |
{ INDEX_op_call, { "C" } },
|
| 1329 |
{ INDEX_op_jmp, { "r" } },
|
| 1330 |
{ INDEX_op_br, { } },
|
| 1331 |
|
| 1332 |
{ INDEX_op_mov_i32, { "r", "r" } },
|
| 1333 |
{ INDEX_op_movi_i32, { "r" } },
|
| 1334 |
{ INDEX_op_ld8u_i32, { "r", "r" } },
|
| 1335 |
{ INDEX_op_ld8s_i32, { "r", "r" } },
|
| 1336 |
{ INDEX_op_ld16u_i32, { "r", "r" } },
|
| 1337 |
{ INDEX_op_ld16s_i32, { "r", "r" } },
|
| 1338 |
{ INDEX_op_ld_i32, { "r", "r" } },
|
| 1339 |
{ INDEX_op_st8_i32, { "rZ", "r" } },
|
| 1340 |
{ INDEX_op_st16_i32, { "rZ", "r" } },
|
| 1341 |
{ INDEX_op_st_i32, { "rZ", "r" } },
|
| 1342 |
|
| 1343 |
{ INDEX_op_add_i32, { "r", "rZ", "rJZ" } },
|
| 1344 |
{ INDEX_op_mul_i32, { "r", "rZ", "rZ" } },
|
| 1345 |
{ INDEX_op_mulu2_i32, { "r", "r", "rZ", "rZ" } },
|
| 1346 |
{ INDEX_op_div_i32, { "r", "rZ", "rZ" } },
|
| 1347 |
{ INDEX_op_divu_i32, { "r", "rZ", "rZ" } },
|
| 1348 |
{ INDEX_op_rem_i32, { "r", "rZ", "rZ" } },
|
| 1349 |
{ INDEX_op_remu_i32, { "r", "rZ", "rZ" } },
|
| 1350 |
{ INDEX_op_sub_i32, { "r", "rZ", "rJZ" } },
|
| 1351 |
|
| 1352 |
{ INDEX_op_and_i32, { "r", "rZ", "rIZ" } },
|
| 1353 |
{ INDEX_op_not_i32, { "r", "rZ" } },
|
| 1354 |
{ INDEX_op_or_i32, { "r", "rZ", "rIZ" } },
|
| 1355 |
{ INDEX_op_xor_i32, { "r", "rZ", "rIZ" } },
|
| 1356 |
|
| 1357 |
{ INDEX_op_shl_i32, { "r", "rZ", "riZ" } },
|
| 1358 |
{ INDEX_op_shr_i32, { "r", "rZ", "riZ" } },
|
| 1359 |
{ INDEX_op_sar_i32, { "r", "rZ", "riZ" } },
|
| 1360 |
|
| 1361 |
{ INDEX_op_brcond_i32, { "rZ", "rZ" } },
|
| 1362 |
{ INDEX_op_setcond_i32, { "r", "rZ", "rZ" } },
|
| 1363 |
{ INDEX_op_setcond2_i32, { "r", "rZ", "rZ", "rZ", "rZ" } },
|
| 1364 |
|
| 1365 |
{ INDEX_op_add2_i32, { "r", "r", "rZ", "rZ", "rJZ", "rJZ" } },
|
| 1366 |
{ INDEX_op_sub2_i32, { "r", "r", "rZ", "rZ", "rJZ", "rJZ" } },
|
| 1367 |
{ INDEX_op_brcond2_i32, { "rZ", "rZ", "rZ", "rZ" } },
|
| 1368 |
|
| 1369 |
#if TARGET_LONG_BITS == 32 |
| 1370 |
{ INDEX_op_qemu_ld8u, { "L", "lZ" } },
|
| 1371 |
{ INDEX_op_qemu_ld8s, { "L", "lZ" } },
|
| 1372 |
{ INDEX_op_qemu_ld16u, { "L", "lZ" } },
|
| 1373 |
{ INDEX_op_qemu_ld16s, { "L", "lZ" } },
|
| 1374 |
{ INDEX_op_qemu_ld32u, { "L", "lZ" } },
|
| 1375 |
{ INDEX_op_qemu_ld64, { "L", "L", "lZ" } },
|
| 1376 |
|
| 1377 |
{ INDEX_op_qemu_st8, { "SZ", "SZ" } },
|
| 1378 |
{ INDEX_op_qemu_st16, { "SZ", "SZ" } },
|
| 1379 |
{ INDEX_op_qemu_st32, { "SZ", "SZ" } },
|
| 1380 |
{ INDEX_op_qemu_st64, { "SZ", "SZ", "SZ" } },
|
| 1381 |
#else
|
| 1382 |
{ INDEX_op_qemu_ld8u, { "L", "lZ", "lZ" } },
|
| 1383 |
{ INDEX_op_qemu_ld8s, { "L", "lZ", "lZ" } },
|
| 1384 |
{ INDEX_op_qemu_ld16u, { "L", "lZ", "lZ" } },
|
| 1385 |
{ INDEX_op_qemu_ld16s, { "L", "lZ", "lZ" } },
|
| 1386 |
{ INDEX_op_qemu_ld32u, { "L", "lZ", "lZ" } },
|
| 1387 |
{ INDEX_op_qemu_ld64, { "L", "L", "lZ", "lZ" } },
|
| 1388 |
|
| 1389 |
{ INDEX_op_qemu_st8, { "SZ", "SZ", "SZ" } },
|
| 1390 |
{ INDEX_op_qemu_st16, { "SZ", "SZ", "SZ" } },
|
| 1391 |
{ INDEX_op_qemu_st32, { "SZ", "SZ", "SZ" } },
|
| 1392 |
{ INDEX_op_qemu_st64, { "SZ", "SZ", "SZ", "SZ" } },
|
| 1393 |
#endif
|
| 1394 |
{ -1 },
|
| 1395 |
}; |
| 1396 |
|
| 1397 |
static int tcg_target_callee_save_regs[] = { |
| 1398 |
TCG_REG_S0, |
| 1399 |
TCG_REG_S1, |
| 1400 |
TCG_REG_S2, |
| 1401 |
TCG_REG_S3, |
| 1402 |
TCG_REG_S4, |
| 1403 |
TCG_REG_S5, |
| 1404 |
TCG_REG_S6, |
| 1405 |
TCG_REG_S7, |
| 1406 |
TCG_REG_GP, |
| 1407 |
/* TCG_REG_FP, */ /* currently used for the global env, so np |
| 1408 |
need to save */
|
| 1409 |
TCG_REG_RA, /* should be last for ABI compliance */
|
| 1410 |
}; |
| 1411 |
|
| 1412 |
/* Generate global QEMU prologue and epilogue code */
|
| 1413 |
void tcg_target_qemu_prologue(TCGContext *s)
|
| 1414 |
{
|
| 1415 |
int i, frame_size;
|
| 1416 |
|
| 1417 |
/* reserve some stack space */
|
| 1418 |
frame_size = ARRAY_SIZE(tcg_target_callee_save_regs) * 4
|
| 1419 |
+ TCG_STATIC_CALL_ARGS_SIZE; |
| 1420 |
frame_size = (frame_size + TCG_TARGET_STACK_ALIGN - 1) &
|
| 1421 |
~(TCG_TARGET_STACK_ALIGN - 1);
|
| 1422 |
|
| 1423 |
/* TB prologue */
|
| 1424 |
tcg_out_addi(s, TCG_REG_SP, -frame_size); |
| 1425 |
for(i = 0 ; i < ARRAY_SIZE(tcg_target_callee_save_regs) ; i++) { |
| 1426 |
tcg_out_st(s, TCG_TYPE_I32, tcg_target_callee_save_regs[i], |
| 1427 |
TCG_REG_SP, TCG_STATIC_CALL_ARGS_SIZE + i * 4);
|
| 1428 |
} |
| 1429 |
|
| 1430 |
/* Call generated code */
|
| 1431 |
tcg_out_opc_reg(s, OPC_JR, 0, TCG_REG_A0, 0); |
| 1432 |
tcg_out_nop(s); |
| 1433 |
tb_ret_addr = s->code_ptr; |
| 1434 |
|
| 1435 |
/* TB epilogue */
|
| 1436 |
for(i = 0 ; i < ARRAY_SIZE(tcg_target_callee_save_regs) ; i++) { |
| 1437 |
tcg_out_ld(s, TCG_TYPE_I32, tcg_target_callee_save_regs[i], |
| 1438 |
TCG_REG_SP, TCG_STATIC_CALL_ARGS_SIZE + i * 4);
|
| 1439 |
} |
| 1440 |
|
| 1441 |
tcg_out_opc_reg(s, OPC_JR, 0, TCG_REG_RA, 0); |
| 1442 |
tcg_out_addi(s, TCG_REG_SP, frame_size); |
| 1443 |
} |
| 1444 |
|
| 1445 |
void tcg_target_init(TCGContext *s)
|
| 1446 |
{
|
| 1447 |
tcg_regset_set(tcg_target_available_regs[TCG_TYPE_I32], 0xffffffff);
|
| 1448 |
tcg_regset_set(tcg_target_call_clobber_regs, |
| 1449 |
(1 << TCG_REG_V0) |
|
| 1450 |
(1 << TCG_REG_V1) |
|
| 1451 |
(1 << TCG_REG_A0) |
|
| 1452 |
(1 << TCG_REG_A1) |
|
| 1453 |
(1 << TCG_REG_A2) |
|
| 1454 |
(1 << TCG_REG_A3) |
|
| 1455 |
(1 << TCG_REG_T1) |
|
| 1456 |
(1 << TCG_REG_T2) |
|
| 1457 |
(1 << TCG_REG_T3) |
|
| 1458 |
(1 << TCG_REG_T4) |
|
| 1459 |
(1 << TCG_REG_T5) |
|
| 1460 |
(1 << TCG_REG_T6) |
|
| 1461 |
(1 << TCG_REG_T7) |
|
| 1462 |
(1 << TCG_REG_T8) |
|
| 1463 |
(1 << TCG_REG_T9));
|
| 1464 |
|
| 1465 |
tcg_regset_clear(s->reserved_regs); |
| 1466 |
tcg_regset_set_reg(s->reserved_regs, TCG_REG_ZERO); /* zero register */
|
| 1467 |
tcg_regset_set_reg(s->reserved_regs, TCG_REG_K0); /* kernel use only */
|
| 1468 |
tcg_regset_set_reg(s->reserved_regs, TCG_REG_K1); /* kernel use only */
|
| 1469 |
tcg_regset_set_reg(s->reserved_regs, TCG_REG_AT); /* internal use */
|
| 1470 |
tcg_regset_set_reg(s->reserved_regs, TCG_REG_T0); /* internal use */
|
| 1471 |
tcg_regset_set_reg(s->reserved_regs, TCG_REG_RA); /* return address */
|
| 1472 |
tcg_regset_set_reg(s->reserved_regs, TCG_REG_SP); /* stack pointer */
|
| 1473 |
|
| 1474 |
tcg_add_target_add_op_defs(mips_op_defs); |
| 1475 |
} |