| /* |
| * Tiny Code Generator for QEMU |
| * |
| * Copyright (c) 2008-2009 Arnaud Patard <arnaud.patard@rtp-net.org> |
| * Copyright (c) 2009 Aurelien Jarno <aurelien@aurel32.net> |
| * Based on i386/tcg-target.c - Copyright (c) 2008 Fabrice Bellard |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a copy |
| * of this software and associated documentation files (the "Software"), to deal |
| * in the Software without restriction, including without limitation the rights |
| * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| * copies of the Software, and to permit persons to whom the Software is |
| * furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in |
| * all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| * THE SOFTWARE. |
| */ |
| |
| #ifndef MIPS_TCG_TARGET_H |
| #define MIPS_TCG_TARGET_H |
| |
| #if _MIPS_SIM == _ABIO32 |
| # define TCG_TARGET_REG_BITS 32 |
| #elif _MIPS_SIM == _ABIN32 || _MIPS_SIM == _ABI64 |
| # define TCG_TARGET_REG_BITS 64 |
| #else |
| # error "Unknown ABI" |
| #endif |
| |
| #define TCG_TARGET_INSN_UNIT_SIZE 4 |
| #define TCG_TARGET_TLB_DISPLACEMENT_BITS 16 |
| #define TCG_TARGET_NB_REGS 32 |
| |
| #define MAX_CODE_GEN_BUFFER_SIZE ((size_t)-1) |
| |
| typedef enum { |
| TCG_REG_ZERO = 0, |
| TCG_REG_AT, |
| TCG_REG_V0, |
| TCG_REG_V1, |
| TCG_REG_A0, |
| TCG_REG_A1, |
| TCG_REG_A2, |
| TCG_REG_A3, |
| TCG_REG_T0, |
| TCG_REG_T1, |
| TCG_REG_T2, |
| TCG_REG_T3, |
| TCG_REG_T4, |
| TCG_REG_T5, |
| TCG_REG_T6, |
| TCG_REG_T7, |
| TCG_REG_S0, |
| TCG_REG_S1, |
| TCG_REG_S2, |
| TCG_REG_S3, |
| TCG_REG_S4, |
| TCG_REG_S5, |
| TCG_REG_S6, |
| TCG_REG_S7, |
| TCG_REG_T8, |
| TCG_REG_T9, |
| TCG_REG_K0, |
| TCG_REG_K1, |
| TCG_REG_GP, |
| TCG_REG_SP, |
| TCG_REG_S8, |
| TCG_REG_RA, |
| |
| TCG_REG_CALL_STACK = TCG_REG_SP, |
| TCG_AREG0 = TCG_REG_S0, |
| } TCGReg; |
| |
| /* used for function call generation */ |
| #define TCG_TARGET_STACK_ALIGN 16 |
| #if _MIPS_SIM == _ABIO32 |
| # define TCG_TARGET_CALL_STACK_OFFSET 16 |
| #else |
| # define TCG_TARGET_CALL_STACK_OFFSET 0 |
| #endif |
| #define TCG_TARGET_CALL_ALIGN_ARGS 1 |
| |
| /* MOVN/MOVZ instructions detection */ |
| #if (defined(__mips_isa_rev) && (__mips_isa_rev >= 1)) || \ |
| defined(_MIPS_ARCH_LOONGSON2E) || defined(_MIPS_ARCH_LOONGSON2F) || \ |
| defined(_MIPS_ARCH_MIPS4) |
| #define use_movnz_instructions 1 |
| #else |
| extern bool use_movnz_instructions; |
| #endif |
| |
| /* MIPS32 instruction set detection */ |
| #if defined(__mips_isa_rev) && (__mips_isa_rev >= 1) |
| #define use_mips32_instructions 1 |
| #else |
| extern bool use_mips32_instructions; |
| #endif |
| |
| /* MIPS32R2 instruction set detection */ |
| #if defined(__mips_isa_rev) && (__mips_isa_rev >= 2) |
| #define use_mips32r2_instructions 1 |
| #else |
| extern bool use_mips32r2_instructions; |
| #endif |
| |
| /* MIPS32R6 instruction set detection */ |
| #if defined(__mips_isa_rev) && (__mips_isa_rev >= 6) |
| #define use_mips32r6_instructions 1 |
| #else |
| #define use_mips32r6_instructions 0 |
| #endif |
| |
| /* optional instructions */ |
| #define TCG_TARGET_HAS_div_i32 1 |
| #define TCG_TARGET_HAS_rem_i32 1 |
| #define TCG_TARGET_HAS_not_i32 1 |
| #define TCG_TARGET_HAS_nor_i32 1 |
| #define TCG_TARGET_HAS_andc_i32 0 |
| #define TCG_TARGET_HAS_orc_i32 0 |
| #define TCG_TARGET_HAS_eqv_i32 0 |
| #define TCG_TARGET_HAS_nand_i32 0 |
| #define TCG_TARGET_HAS_mulu2_i32 (!use_mips32r6_instructions) |
| #define TCG_TARGET_HAS_muls2_i32 (!use_mips32r6_instructions) |
| #define TCG_TARGET_HAS_muluh_i32 1 |
| #define TCG_TARGET_HAS_mulsh_i32 1 |
| #define TCG_TARGET_HAS_bswap32_i32 1 |
| #define TCG_TARGET_HAS_direct_jump 0 |
| |
| #if TCG_TARGET_REG_BITS == 64 |
| #define TCG_TARGET_HAS_add2_i32 0 |
| #define TCG_TARGET_HAS_sub2_i32 0 |
| #define TCG_TARGET_HAS_extrl_i64_i32 1 |
| #define TCG_TARGET_HAS_extrh_i64_i32 1 |
| #define TCG_TARGET_HAS_div_i64 1 |
| #define TCG_TARGET_HAS_rem_i64 1 |
| #define TCG_TARGET_HAS_not_i64 1 |
| #define TCG_TARGET_HAS_nor_i64 1 |
| #define TCG_TARGET_HAS_andc_i64 0 |
| #define TCG_TARGET_HAS_orc_i64 0 |
| #define TCG_TARGET_HAS_eqv_i64 0 |
| #define TCG_TARGET_HAS_nand_i64 0 |
| #define TCG_TARGET_HAS_add2_i64 0 |
| #define TCG_TARGET_HAS_sub2_i64 0 |
| #define TCG_TARGET_HAS_mulu2_i64 (!use_mips32r6_instructions) |
| #define TCG_TARGET_HAS_muls2_i64 (!use_mips32r6_instructions) |
| #define TCG_TARGET_HAS_muluh_i64 1 |
| #define TCG_TARGET_HAS_mulsh_i64 1 |
| #define TCG_TARGET_HAS_ext32s_i64 1 |
| #define TCG_TARGET_HAS_ext32u_i64 1 |
| #endif |
| |
| /* optional instructions detected at runtime */ |
| #define TCG_TARGET_HAS_movcond_i32 use_movnz_instructions |
| #define TCG_TARGET_HAS_bswap16_i32 use_mips32r2_instructions |
| #define TCG_TARGET_HAS_deposit_i32 use_mips32r2_instructions |
| #define TCG_TARGET_HAS_extract_i32 use_mips32r2_instructions |
| #define TCG_TARGET_HAS_sextract_i32 0 |
| #define TCG_TARGET_HAS_extract2_i32 0 |
| #define TCG_TARGET_HAS_ext8s_i32 use_mips32r2_instructions |
| #define TCG_TARGET_HAS_ext16s_i32 use_mips32r2_instructions |
| #define TCG_TARGET_HAS_rot_i32 use_mips32r2_instructions |
| #define TCG_TARGET_HAS_clz_i32 use_mips32r2_instructions |
| #define TCG_TARGET_HAS_ctz_i32 0 |
| #define TCG_TARGET_HAS_ctpop_i32 0 |
| #define TCG_TARGET_HAS_qemu_st8_i32 0 |
| |
| #if TCG_TARGET_REG_BITS == 64 |
| #define TCG_TARGET_HAS_movcond_i64 use_movnz_instructions |
| #define TCG_TARGET_HAS_bswap16_i64 use_mips32r2_instructions |
| #define TCG_TARGET_HAS_bswap32_i64 use_mips32r2_instructions |
| #define TCG_TARGET_HAS_bswap64_i64 use_mips32r2_instructions |
| #define TCG_TARGET_HAS_deposit_i64 use_mips32r2_instructions |
| #define TCG_TARGET_HAS_extract_i64 use_mips32r2_instructions |
| #define TCG_TARGET_HAS_sextract_i64 0 |
| #define TCG_TARGET_HAS_extract2_i64 0 |
| #define TCG_TARGET_HAS_ext8s_i64 use_mips32r2_instructions |
| #define TCG_TARGET_HAS_ext16s_i64 use_mips32r2_instructions |
| #define TCG_TARGET_HAS_rot_i64 use_mips32r2_instructions |
| #define TCG_TARGET_HAS_clz_i64 use_mips32r2_instructions |
| #define TCG_TARGET_HAS_ctz_i64 0 |
| #define TCG_TARGET_HAS_ctpop_i64 0 |
| #endif |
| |
| /* optional instructions automatically implemented */ |
| #define TCG_TARGET_HAS_neg_i32 0 /* sub rd, zero, rt */ |
| #define TCG_TARGET_HAS_ext8u_i32 0 /* andi rt, rs, 0xff */ |
| #define TCG_TARGET_HAS_ext16u_i32 0 /* andi rt, rs, 0xffff */ |
| |
| #if TCG_TARGET_REG_BITS == 64 |
| #define TCG_TARGET_HAS_neg_i64 0 /* sub rd, zero, rt */ |
| #define TCG_TARGET_HAS_ext8u_i64 0 /* andi rt, rs, 0xff */ |
| #define TCG_TARGET_HAS_ext16u_i64 0 /* andi rt, rs, 0xffff */ |
| #endif |
| |
| #define TCG_TARGET_DEFAULT_MO (0) |
| #define TCG_TARGET_HAS_MEMORY_BSWAP 1 |
| |
| /* not defined -- call should be eliminated at compile time */ |
| void tb_target_set_jmp_target(uintptr_t, uintptr_t, uintptr_t, uintptr_t) |
| QEMU_ERROR("code path is reachable"); |
| |
| #define TCG_TARGET_NEED_LDST_LABELS |
| |
| #endif |
