diff options
Diffstat (limited to 'src/recompiler/softmmu_header.h')
| -rw-r--r-- | src/recompiler/softmmu_header.h | 208 |
1 files changed, 208 insertions, 0 deletions
diff --git a/src/recompiler/softmmu_header.h b/src/recompiler/softmmu_header.h new file mode 100644 index 00000000..06e2466d --- /dev/null +++ b/src/recompiler/softmmu_header.h @@ -0,0 +1,208 @@ +/* + * Software MMU support + * + * Copyright (c) 2003 Fabrice Bellard + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, see <http://www.gnu.org/licenses/>. + */ + +/* + * Oracle LGPL Disclaimer: For the avoidance of doubt, except that if any license choice + * other than GPL or LGPL is available it will apply instead, Oracle elects to use only + * the Lesser General Public License version 2.1 (LGPLv2) at this time for any software where + * a choice of LGPL license versions is made available with the language indicating + * that LGPLv2 or any later version may be used, or where a choice of which version + * of the LGPL is applied is otherwise unspecified. + */ + +#if DATA_SIZE == 8 +#define SUFFIX q +#define USUFFIX q +#define DATA_TYPE uint64_t +#elif DATA_SIZE == 4 +#define SUFFIX l +#define USUFFIX l +#define DATA_TYPE uint32_t +#elif DATA_SIZE == 2 +#define SUFFIX w +#define USUFFIX uw +#define DATA_TYPE uint16_t +#define DATA_STYPE int16_t +#elif DATA_SIZE == 1 +#define SUFFIX b +#define USUFFIX ub +#define DATA_TYPE uint8_t +#define DATA_STYPE int8_t +#else +#error unsupported data size +#endif + +#if ACCESS_TYPE < (NB_MMU_MODES) + +#define CPU_MMU_INDEX ACCESS_TYPE +#define MMUSUFFIX _mmu + +#elif ACCESS_TYPE == (NB_MMU_MODES) + +#define CPU_MMU_INDEX (cpu_mmu_index(env)) +#define MMUSUFFIX _mmu + +#elif ACCESS_TYPE == (NB_MMU_MODES + 1) + +#define CPU_MMU_INDEX (cpu_mmu_index(env)) +#define MMUSUFFIX _cmmu + +#else +#error invalid ACCESS_TYPE +#endif + +#if DATA_SIZE == 8 +#define RES_TYPE uint64_t +#else +#define RES_TYPE uint32_t +#endif + +#if ACCESS_TYPE == (NB_MMU_MODES + 1) +#define ADDR_READ addr_code +#else +#define ADDR_READ addr_read +#endif + +/* generic load/store macros */ + +static inline RES_TYPE glue(glue(ld, USUFFIX), MEMSUFFIX)(target_ulong ptr) +{ + int page_index; + RES_TYPE res; + target_ulong addr; + uintptr_t physaddr; + int mmu_idx; + + addr = ptr; + page_index = (addr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1); + mmu_idx = CPU_MMU_INDEX; + if (unlikely(env->tlb_table[mmu_idx][page_index].ADDR_READ != + (addr & (TARGET_PAGE_MASK | (DATA_SIZE - 1))))) { + res = glue(glue(__ld, SUFFIX), MMUSUFFIX)(addr, mmu_idx); + } else { + physaddr = addr + env->tlb_table[mmu_idx][page_index].addend; + res = glue(glue(ld, USUFFIX), _raw)((uint8_t *)physaddr); + } + return res; +} + +#if DATA_SIZE <= 2 +static inline int glue(glue(lds, SUFFIX), MEMSUFFIX)(target_ulong ptr) +{ + int res, page_index; + target_ulong addr; + uintptr_t physaddr; + int mmu_idx; + + addr = ptr; + page_index = (addr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1); + mmu_idx = CPU_MMU_INDEX; + if (unlikely(env->tlb_table[mmu_idx][page_index].ADDR_READ != + (addr & (TARGET_PAGE_MASK | (DATA_SIZE - 1))))) { + res = (DATA_STYPE)glue(glue(__ld, SUFFIX), MMUSUFFIX)(addr, mmu_idx); + } else { + physaddr = addr + env->tlb_table[mmu_idx][page_index].addend; + res = glue(glue(lds, SUFFIX), _raw)((uint8_t *)physaddr); + } + return res; +} +#endif + +#if ACCESS_TYPE != (NB_MMU_MODES + 1) + +/* generic store macro */ + +static inline void glue(glue(st, SUFFIX), MEMSUFFIX)(target_ulong ptr, RES_TYPE v) +{ + int page_index; + target_ulong addr; + uintptr_t physaddr; + int mmu_idx; + + addr = ptr; + page_index = (addr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1); + mmu_idx = CPU_MMU_INDEX; + if (unlikely(env->tlb_table[mmu_idx][page_index].addr_write != + (addr & (TARGET_PAGE_MASK | (DATA_SIZE - 1))))) { + glue(glue(__st, SUFFIX), MMUSUFFIX)(addr, v, mmu_idx); + } else { + physaddr = addr + env->tlb_table[mmu_idx][page_index].addend; + glue(glue(st, SUFFIX), _raw)((uint8_t *)physaddr, v); + } +} + +#endif /* ACCESS_TYPE != (NB_MMU_MODES + 1) */ + +#if ACCESS_TYPE != (NB_MMU_MODES + 1) + +#if DATA_SIZE == 8 +static inline float64 glue(ldfq, MEMSUFFIX)(target_ulong ptr) +{ + union { + float64 d; + uint64_t i; + } u; + u.i = glue(ldq, MEMSUFFIX)(ptr); + return u.d; +} + +static inline void glue(stfq, MEMSUFFIX)(target_ulong ptr, float64 v) +{ + union { + float64 d; + uint64_t i; + } u; + u.d = v; + glue(stq, MEMSUFFIX)(ptr, u.i); +} +#endif /* DATA_SIZE == 8 */ + +#if DATA_SIZE == 4 +static inline float32 glue(ldfl, MEMSUFFIX)(target_ulong ptr) +{ + union { + float32 f; + uint32_t i; + } u; + u.i = glue(ldl, MEMSUFFIX)(ptr); + return u.f; +} + +static inline void glue(stfl, MEMSUFFIX)(target_ulong ptr, float32 v) +{ + union { + float32 f; + uint32_t i; + } u; + u.f = v; + glue(stl, MEMSUFFIX)(ptr, u.i); +} +#endif /* DATA_SIZE == 4 */ + +#endif /* ACCESS_TYPE != (NB_MMU_MODES + 1) */ + +#undef RES_TYPE +#undef DATA_TYPE +#undef DATA_STYPE +#undef SUFFIX +#undef USUFFIX +#undef DATA_SIZE +#undef CPU_MMU_INDEX +#undef MMUSUFFIX +#undef ADDR_READ |