1 /* 2 * Tiny Code Generator for QEMU 3 * 4 * Copyright (c) 2008-2009 Arnaud Patard <arnaud.patard@rtp-net.org> 5 * Copyright (c) 2009 Aurelien Jarno <aurelien@aurel32.net> 6 * Based on i386/tcg-target.c - Copyright (c) 2008 Fabrice Bellard 7 * 8 * Permission is hereby granted, free of charge, to any person obtaining a copy 9 * of this software and associated documentation files (the "Software"), to deal 10 * in the Software without restriction, including without limitation the rights 11 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 12 * copies of the Software, and to permit persons to whom the Software is 13 * furnished to do so, subject to the following conditions: 14 * 15 * The above copyright notice and this permission notice shall be included in 16 * all copies or substantial portions of the Software. 17 * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 21 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 23 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 24 * THE SOFTWARE. 25 */ 26 27 #ifndef MIPS_TCG_TARGET_H 28 #define MIPS_TCG_TARGET_H 29 30 #define TCG_TARGET_INSN_UNIT_SIZE 4 31 #define TCG_TARGET_NB_REGS 32 32 33 #define MAX_CODE_GEN_BUFFER_SIZE ((size_t)-1) 34 35 typedef enum { 36 TCG_REG_ZERO = 0, 37 TCG_REG_AT, 38 TCG_REG_V0, 39 TCG_REG_V1, 40 TCG_REG_A0, 41 TCG_REG_A1, 42 TCG_REG_A2, 43 TCG_REG_A3, 44 TCG_REG_T0, 45 TCG_REG_T1, 46 TCG_REG_T2, 47 TCG_REG_T3, 48 TCG_REG_T4, 49 TCG_REG_T5, 50 TCG_REG_T6, 51 TCG_REG_T7, 52 TCG_REG_S0, 53 TCG_REG_S1, 54 TCG_REG_S2, 55 TCG_REG_S3, 56 TCG_REG_S4, 57 TCG_REG_S5, 58 TCG_REG_S6, 59 TCG_REG_S7, 60 TCG_REG_T8, 61 TCG_REG_T9, 62 TCG_REG_K0, 63 TCG_REG_K1, 64 TCG_REG_GP, 65 TCG_REG_SP, 66 TCG_REG_S8, 67 TCG_REG_RA, 68 69 TCG_REG_CALL_STACK = TCG_REG_SP, 70 TCG_AREG0 = TCG_REG_S8, 71 } TCGReg; 72 73 /* MOVN/MOVZ instructions detection */ 74 #if (defined(__mips_isa_rev) && (__mips_isa_rev >= 1)) || \ 75 defined(_MIPS_ARCH_LOONGSON2E) || defined(_MIPS_ARCH_LOONGSON2F) || \ 76 defined(_MIPS_ARCH_MIPS4) 77 #define use_movnz_instructions 1 78 #else 79 extern bool use_movnz_instructions; 80 #endif 81 82 /* MIPS32 instruction set detection */ 83 #if defined(__mips_isa_rev) && (__mips_isa_rev >= 1) 84 #define use_mips32_instructions 1 85 #else 86 extern bool use_mips32_instructions; 87 #endif 88 89 /* MIPS32R2 instruction set detection */ 90 #if defined(__mips_isa_rev) && (__mips_isa_rev >= 2) 91 #define use_mips32r2_instructions 1 92 #else 93 extern bool use_mips32r2_instructions; 94 #endif 95 96 /* MIPS32R6 instruction set detection */ 97 #if defined(__mips_isa_rev) && (__mips_isa_rev >= 6) 98 #define use_mips32r6_instructions 1 99 #else 100 #define use_mips32r6_instructions 0 101 #endif 102 103 /* optional instructions */ 104 #define TCG_TARGET_HAS_div_i32 1 105 #define TCG_TARGET_HAS_rem_i32 1 106 #define TCG_TARGET_HAS_not_i32 1 107 #define TCG_TARGET_HAS_nor_i32 1 108 #define TCG_TARGET_HAS_andc_i32 0 109 #define TCG_TARGET_HAS_orc_i32 0 110 #define TCG_TARGET_HAS_eqv_i32 0 111 #define TCG_TARGET_HAS_nand_i32 0 112 #define TCG_TARGET_HAS_mulu2_i32 (!use_mips32r6_instructions) 113 #define TCG_TARGET_HAS_muls2_i32 (!use_mips32r6_instructions) 114 #define TCG_TARGET_HAS_muluh_i32 1 115 #define TCG_TARGET_HAS_mulsh_i32 1 116 #define TCG_TARGET_HAS_bswap32_i32 1 117 #define TCG_TARGET_HAS_negsetcond_i32 0 118 119 #if TCG_TARGET_REG_BITS == 64 120 #define TCG_TARGET_HAS_add2_i32 0 121 #define TCG_TARGET_HAS_sub2_i32 0 122 #define TCG_TARGET_HAS_extr_i64_i32 1 123 #define TCG_TARGET_HAS_div_i64 1 124 #define TCG_TARGET_HAS_rem_i64 1 125 #define TCG_TARGET_HAS_not_i64 1 126 #define TCG_TARGET_HAS_nor_i64 1 127 #define TCG_TARGET_HAS_andc_i64 0 128 #define TCG_TARGET_HAS_orc_i64 0 129 #define TCG_TARGET_HAS_eqv_i64 0 130 #define TCG_TARGET_HAS_nand_i64 0 131 #define TCG_TARGET_HAS_add2_i64 0 132 #define TCG_TARGET_HAS_sub2_i64 0 133 #define TCG_TARGET_HAS_mulu2_i64 (!use_mips32r6_instructions) 134 #define TCG_TARGET_HAS_muls2_i64 (!use_mips32r6_instructions) 135 #define TCG_TARGET_HAS_muluh_i64 1 136 #define TCG_TARGET_HAS_mulsh_i64 1 137 #define TCG_TARGET_HAS_ext32s_i64 1 138 #define TCG_TARGET_HAS_ext32u_i64 1 139 #define TCG_TARGET_HAS_negsetcond_i64 0 140 #endif 141 142 /* optional instructions detected at runtime */ 143 #define TCG_TARGET_HAS_bswap16_i32 use_mips32r2_instructions 144 #define TCG_TARGET_HAS_deposit_i32 use_mips32r2_instructions 145 #define TCG_TARGET_HAS_extract_i32 use_mips32r2_instructions 146 #define TCG_TARGET_HAS_sextract_i32 0 147 #define TCG_TARGET_HAS_extract2_i32 0 148 #define TCG_TARGET_HAS_ext8s_i32 use_mips32r2_instructions 149 #define TCG_TARGET_HAS_ext16s_i32 use_mips32r2_instructions 150 #define TCG_TARGET_HAS_rot_i32 use_mips32r2_instructions 151 #define TCG_TARGET_HAS_clz_i32 use_mips32r2_instructions 152 #define TCG_TARGET_HAS_ctz_i32 0 153 #define TCG_TARGET_HAS_ctpop_i32 0 154 #define TCG_TARGET_HAS_qemu_st8_i32 0 155 156 #if TCG_TARGET_REG_BITS == 64 157 #define TCG_TARGET_HAS_bswap16_i64 use_mips32r2_instructions 158 #define TCG_TARGET_HAS_bswap32_i64 use_mips32r2_instructions 159 #define TCG_TARGET_HAS_bswap64_i64 use_mips32r2_instructions 160 #define TCG_TARGET_HAS_deposit_i64 use_mips32r2_instructions 161 #define TCG_TARGET_HAS_extract_i64 use_mips32r2_instructions 162 #define TCG_TARGET_HAS_sextract_i64 0 163 #define TCG_TARGET_HAS_extract2_i64 0 164 #define TCG_TARGET_HAS_ext8s_i64 use_mips32r2_instructions 165 #define TCG_TARGET_HAS_ext16s_i64 use_mips32r2_instructions 166 #define TCG_TARGET_HAS_rot_i64 use_mips32r2_instructions 167 #define TCG_TARGET_HAS_clz_i64 use_mips32r2_instructions 168 #define TCG_TARGET_HAS_ctz_i64 0 169 #define TCG_TARGET_HAS_ctpop_i64 0 170 #endif 171 172 /* optional instructions automatically implemented */ 173 #define TCG_TARGET_HAS_ext8u_i32 0 /* andi rt, rs, 0xff */ 174 #define TCG_TARGET_HAS_ext16u_i32 0 /* andi rt, rs, 0xffff */ 175 176 #if TCG_TARGET_REG_BITS == 64 177 #define TCG_TARGET_HAS_ext8u_i64 0 /* andi rt, rs, 0xff */ 178 #define TCG_TARGET_HAS_ext16u_i64 0 /* andi rt, rs, 0xffff */ 179 #endif 180 181 #define TCG_TARGET_HAS_qemu_ldst_i128 0 182 183 #define TCG_TARGET_HAS_tst 0 184 185 #define TCG_TARGET_DEFAULT_MO 0 186 #define TCG_TARGET_NEED_LDST_LABELS 187 #define TCG_TARGET_NEED_POOL_LABELS 188 189 #endif 190