1 /* 2 * Tiny Code Generator for QEMU 3 * 4 * Copyright (c) 2008 Fabrice Bellard 5 * Copyright (c) 2008 Andrzej Zaborowski 6 * 7 * Permission is hereby granted, free of charge, to any person obtaining a copy 8 * of this software and associated documentation files (the "Software"), to deal 9 * in the Software without restriction, including without limitation the rights 10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 11 * copies of the Software, and to permit persons to whom the Software is 12 * furnished to do so, subject to the following conditions: 13 * 14 * The above copyright notice and this permission notice shall be included in 15 * all copies or substantial portions of the Software. 16 * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 23 * THE SOFTWARE. 24 */ 25 #ifndef TCG_TARGET_ARM 26 #define TCG_TARGET_ARM 1 27 28 #undef TCG_TARGET_STACK_GROWSUP 29 #define TCG_TARGET_INSN_UNIT_SIZE 4 30 31 typedef enum { 32 TCG_REG_R0 = 0, 33 TCG_REG_R1, 34 TCG_REG_R2, 35 TCG_REG_R3, 36 TCG_REG_R4, 37 TCG_REG_R5, 38 TCG_REG_R6, 39 TCG_REG_R7, 40 TCG_REG_R8, 41 TCG_REG_R9, 42 TCG_REG_R10, 43 TCG_REG_R11, 44 TCG_REG_R12, 45 TCG_REG_R13, 46 TCG_REG_R14, 47 TCG_REG_PC, 48 } TCGReg; 49 50 #define TCG_TARGET_NB_REGS 16 51 52 #ifdef __ARM_ARCH_EXT_IDIV__ 53 #define use_idiv_instructions 1 54 #else 55 extern bool use_idiv_instructions; 56 #endif 57 58 59 /* used for function call generation */ 60 #define TCG_REG_CALL_STACK TCG_REG_R13 61 #define TCG_TARGET_STACK_ALIGN 8 62 #define TCG_TARGET_CALL_ALIGN_ARGS 1 63 #define TCG_TARGET_CALL_STACK_OFFSET 0 64 65 /* optional instructions */ 66 #define TCG_TARGET_HAS_ext8s_i32 1 67 #define TCG_TARGET_HAS_ext16s_i32 1 68 #define TCG_TARGET_HAS_ext8u_i32 0 /* and r0, r1, #0xff */ 69 #define TCG_TARGET_HAS_ext16u_i32 1 70 #define TCG_TARGET_HAS_bswap16_i32 1 71 #define TCG_TARGET_HAS_bswap32_i32 1 72 #define TCG_TARGET_HAS_not_i32 1 73 #define TCG_TARGET_HAS_neg_i32 1 74 #define TCG_TARGET_HAS_rot_i32 1 75 #define TCG_TARGET_HAS_andc_i32 1 76 #define TCG_TARGET_HAS_orc_i32 0 77 #define TCG_TARGET_HAS_eqv_i32 0 78 #define TCG_TARGET_HAS_nand_i32 0 79 #define TCG_TARGET_HAS_nor_i32 0 80 #define TCG_TARGET_HAS_deposit_i32 1 81 #define TCG_TARGET_HAS_movcond_i32 1 82 #define TCG_TARGET_HAS_mulu2_i32 1 83 #define TCG_TARGET_HAS_muls2_i32 1 84 #define TCG_TARGET_HAS_muluh_i32 0 85 #define TCG_TARGET_HAS_mulsh_i32 0 86 #define TCG_TARGET_HAS_div_i32 use_idiv_instructions 87 #define TCG_TARGET_HAS_rem_i32 0 88 89 extern bool tcg_target_deposit_valid(int ofs, int len); 90 #define TCG_TARGET_deposit_i32_valid tcg_target_deposit_valid 91 92 enum { 93 TCG_AREG0 = TCG_REG_R6, 94 }; 95 96 static inline void flush_icache_range(uintptr_t start, uintptr_t stop) 97 { 98 #if QEMU_GNUC_PREREQ(4, 1) 99 __builtin___clear_cache((char *) start, (char *) stop); 100 #else 101 register uintptr_t _beg __asm("a1") = start; 102 register uintptr_t _end __asm("a2") = stop; 103 register uintptr_t _flg __asm("a3") = 0; 104 __asm __volatile__ ("swi 0x9f0002" : : "r" (_beg), "r" (_end), "r" (_flg)); 105 #endif 106 } 107 108 #endif 109