diff options
Diffstat (limited to 'softmmu_header.h')
| -rw-r--r-- | softmmu_header.h | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/softmmu_header.h b/softmmu_header.h index 82aae40b24..b8077ef43b 100644 --- a/softmmu_header.h +++ b/softmmu_header.h @@ -74,6 +74,152 @@ DATA_TYPE REGPARM(1) glue(glue(__ld, SUFFIX), MMUSUFFIX)(unsigned long addr, int is_user); void REGPARM(2) glue(glue(__st, SUFFIX), MMUSUFFIX)(unsigned long addr, DATA_TYPE v, int is_user); +#if (DATA_SIZE <= 4) && defined(__i386__) && (ACCESS_TYPE <= 1) && defined(ASM_SOFTMMU) + +static inline RES_TYPE glue(glue(ld, USUFFIX), MEMSUFFIX)(void *ptr) +{ + int res; + + asm volatile ("movl %1, %%edx\n" + "movl %1, %%eax\n" + "shrl %3, %%edx\n" + "andl %4, %%eax\n" + "andl %2, %%edx\n" + "leal %5(%%edx, %%ebp), %%edx\n" + "cmpl (%%edx), %%eax\n" + "movl %1, %%eax\n" + "je 1f\n" + "pushl %6\n" + "call %7\n" + "popl %%edx\n" + "movl %%eax, %0\n" + "jmp 2f\n" + "1:\n" + "addl 4(%%edx), %%eax\n" +#if DATA_SIZE == 1 + "movzbl (%%eax), %0\n" +#elif DATA_SIZE == 2 + "movzwl (%%eax), %0\n" +#elif DATA_SIZE == 4 + "movl (%%eax), %0\n" +#else +#error unsupported size +#endif + "2:\n" + : "=r" (res) + : "r" (ptr), + "i" ((CPU_TLB_SIZE - 1) << 3), + "i" (TARGET_PAGE_BITS - 3), + "i" (TARGET_PAGE_MASK | (DATA_SIZE - 1)), + "m" (*(uint32_t *)offsetof(CPUState, tlb_read[CPU_MEM_INDEX][0].address)), + "i" (CPU_MEM_INDEX), + "m" (*(uint8_t *)&glue(glue(__ld, SUFFIX), MMUSUFFIX)) + : "%eax", "%ecx", "%edx", "memory", "cc"); + return res; +} + +#if DATA_SIZE <= 2 +static inline int glue(glue(lds, SUFFIX), MEMSUFFIX)(void *ptr) +{ + int res; + + asm volatile ("movl %1, %%edx\n" + "movl %1, %%eax\n" + "shrl %3, %%edx\n" + "andl %4, %%eax\n" + "andl %2, %%edx\n" + "leal %5(%%edx, %%ebp), %%edx\n" + "cmpl (%%edx), %%eax\n" + "movl %1, %%eax\n" + "je 1f\n" + "pushl %6\n" + "call %7\n" + "popl %%edx\n" +#if DATA_SIZE == 1 + "movsbl %%al, %0\n" +#elif DATA_SIZE == 2 + "movswl %%ax, %0\n" +#else +#error unsupported size +#endif + "jmp 2f\n" + "1:\n" + "addl 4(%%edx), %%eax\n" +#if DATA_SIZE == 1 + "movsbl (%%eax), %0\n" +#elif DATA_SIZE == 2 + "movswl (%%eax), %0\n" +#else +#error unsupported size +#endif + "2:\n" + : "=r" (res) + : "r" (ptr), + "i" ((CPU_TLB_SIZE - 1) << 3), + "i" (TARGET_PAGE_BITS - 3), + "i" (TARGET_PAGE_MASK | (DATA_SIZE - 1)), + "m" (*(uint32_t *)offsetof(CPUState, tlb_read[CPU_MEM_INDEX][0].address)), + "i" (CPU_MEM_INDEX), + "m" (*(uint8_t *)&glue(glue(__ld, SUFFIX), MMUSUFFIX)) + : "%eax", "%ecx", "%edx", "memory", "cc"); + return res; +} +#endif + +static inline void glue(glue(st, SUFFIX), MEMSUFFIX)(void *ptr, RES_TYPE v) +{ + asm volatile ("movl %0, %%edx\n" + "movl %0, %%eax\n" + "shrl %3, %%edx\n" + "andl %4, %%eax\n" + "andl %2, %%edx\n" + "leal %5(%%edx, %%ebp), %%edx\n" + "cmpl (%%edx), %%eax\n" + "movl %0, %%eax\n" + "je 1f\n" +#if DATA_SIZE == 1 + "movzbl %b1, %%edx\n" +#elif DATA_SIZE == 2 + "movzwl %w1, %%edx\n" +#elif DATA_SIZE == 4 + "movl %1, %%edx\n" +#else +#error unsupported size +#endif + "pushl %6\n" + "call %7\n" + "popl %%eax\n" + "jmp 2f\n" + "1:\n" + "addl 4(%%edx), %%eax\n" +#if DATA_SIZE == 1 + "movb %b1, (%%eax)\n" +#elif DATA_SIZE == 2 + "movw %w1, (%%eax)\n" +#elif DATA_SIZE == 4 + "movl %1, (%%eax)\n" +#else +#error unsupported size +#endif + "2:\n" + : + : "r" (ptr), +/* NOTE: 'q' would be needed as constraint, but we could not use it + with T1 ! */ + "r" (v), + "i" ((CPU_TLB_SIZE - 1) << 3), + "i" (TARGET_PAGE_BITS - 3), + "i" (TARGET_PAGE_MASK | (DATA_SIZE - 1)), + "m" (*(uint32_t *)offsetof(CPUState, tlb_write[CPU_MEM_INDEX][0].address)), + "i" (CPU_MEM_INDEX), + "m" (*(uint8_t *)&glue(glue(__st, SUFFIX), MMUSUFFIX)) + : "%eax", "%ecx", "%edx", "memory", "cc"); +} + +#else + +/* generic load/store macros */ + static inline RES_TYPE glue(glue(ld, USUFFIX), MEMSUFFIX)(void *ptr) { int index; @@ -115,6 +261,8 @@ static inline int glue(glue(lds, SUFFIX), MEMSUFFIX)(void *ptr) } #endif +/* generic store macro */ + static inline void glue(glue(st, SUFFIX), MEMSUFFIX)(void *ptr, RES_TYPE v) { int index; @@ -133,6 +281,8 @@ static inline void glue(glue(st, SUFFIX), MEMSUFFIX)(void *ptr, RES_TYPE v) } } +#endif + #undef RES_TYPE #undef DATA_TYPE #undef DATA_STYPE |