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 #define TCG_TARGET_MIPS 1 27 28 #ifdef __MIPSEB__ 29 # define TCG_TARGET_WORDS_BIGENDIAN 30 #endif 31 32 #define TCG_TARGET_NB_REGS 32 33 34 typedef enum { 35 TCG_REG_ZERO = 0, 36 TCG_REG_AT, 37 TCG_REG_V0, 38 TCG_REG_V1, 39 TCG_REG_A0, 40 TCG_REG_A1, 41 TCG_REG_A2, 42 TCG_REG_A3, 43 TCG_REG_T0, 44 TCG_REG_T1, 45 TCG_REG_T2, 46 TCG_REG_T3, 47 TCG_REG_T4, 48 TCG_REG_T5, 49 TCG_REG_T6, 50 TCG_REG_T7, 51 TCG_REG_S0, 52 TCG_REG_S1, 53 TCG_REG_S2, 54 TCG_REG_S3, 55 TCG_REG_S4, 56 TCG_REG_S5, 57 TCG_REG_S6, 58 TCG_REG_S7, 59 TCG_REG_T8, 60 TCG_REG_T9, 61 TCG_REG_K0, 62 TCG_REG_K1, 63 TCG_REG_GP, 64 TCG_REG_SP, 65 TCG_REG_FP, 66 TCG_REG_RA, 67 } TCGReg; 68 69 #define TCG_CT_CONST_ZERO 0x100 70 #define TCG_CT_CONST_U16 0x200 71 #define TCG_CT_CONST_S16 0x400 72 73 /* used for function call generation */ 74 #define TCG_REG_CALL_STACK TCG_REG_SP 75 #define TCG_TARGET_STACK_ALIGN 8 76 #define TCG_TARGET_CALL_STACK_OFFSET 16 77 #define TCG_TARGET_CALL_ALIGN_ARGS 1 78 79 /* optional instructions */ 80 #define TCG_TARGET_HAS_div_i32 1 81 #define TCG_TARGET_HAS_not_i32 1 82 #define TCG_TARGET_HAS_nor_i32 1 83 #define TCG_TARGET_HAS_rot_i32 0 84 #define TCG_TARGET_HAS_ext8s_i32 1 85 #define TCG_TARGET_HAS_ext16s_i32 1 86 #define TCG_TARGET_HAS_bswap32_i32 0 87 #define TCG_TARGET_HAS_bswap16_i32 0 88 #define TCG_TARGET_HAS_andc_i32 0 89 #define TCG_TARGET_HAS_orc_i32 0 90 #define TCG_TARGET_HAS_eqv_i32 0 91 #define TCG_TARGET_HAS_nand_i32 0 92 #define TCG_TARGET_HAS_deposit_i32 0 93 94 /* optional instructions automatically implemented */ 95 #define TCG_TARGET_HAS_neg_i32 0 /* sub rd, zero, rt */ 96 #define TCG_TARGET_HAS_ext8u_i32 0 /* andi rt, rs, 0xff */ 97 #define TCG_TARGET_HAS_ext16u_i32 0 /* andi rt, rs, 0xffff */ 98 99 /* Note: must be synced with dyngen-exec.h */ 100 #define TCG_AREG0 TCG_REG_S0 101 102 /* guest base is supported */ 103 #define TCG_TARGET_HAS_GUEST_BASE 104 105 #ifdef __OpenBSD__ 106 #include <machine/sysarch.h> 107 #else 108 #include <sys/cachectl.h> 109 #endif 110 111 static inline void flush_icache_range(unsigned long start, unsigned long stop) 112 { 113 cacheflush ((void *)start, stop-start, ICACHE); 114 } 115