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sh2 drc: drc exit, block linking and branch handling revised

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This commit is contained in:
kub 2019-09-28 16:39:26 +02:00
parent 36614252d9
commit 06bc3c0693
5 changed files with 462 additions and 246 deletions
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27
cpu/drc/emit_x86.c
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@ -371,8 +371,16 @@ enum { xAX = 0, xCX, xDX, xBX, xSP, xBP, xSI, xDI, // x86-64,i386 common
} \
} while (0)
#define emith_move_r_imm_s8(r, imm) \
emith_move_r_imm(r, (u32)(signed int)(signed char)(imm))
#define emith_move_r_imm_s8_patchable(r, imm) do { \
EMIT_REX_IF(0, 0, r); \
EMIT_OP(0xb8 + ((r)&7)); \
EMIT((s8)(imm), u32); \
} while (0)
#define emith_move_r_imm_s8_patch(ptr, imm) do { \
u8 *ptr_ = ptr; \
while ((*ptr_ & 0xf8) != 0xb8) ptr_++; \
EMIT_PTR(ptr_ + 1, (s8)(imm), u32); \
} while (0)
#define emith_arith_r_imm(op, r, imm) do { \
EMIT_REX_IF(0, 0, r); \
@ -851,7 +859,6 @@ enum { xAX = 0, xCX, xDX, xBX, xSP, xBP, xSI, xDI, // x86-64,i386 common
#define emith_jump_patchable(target) \
emith_jump(target)
#define emith_jump_patchable_size() 5 /* JMP rel32 */
#define emith_jump_cond(cond, ptr) do { \
u32 disp = (u8 *)(ptr) - ((u8 *)tcache_ptr + 6); \
@ -867,15 +874,17 @@ enum { xAX = 0, xCX, xDX, xBX, xSP, xBP, xSI, xDI, // x86-64,i386 common
u32 disp_ = (u8 *)(target) - ((u8 *)(ptr) + 4); \
u32 offs_ = (*(u8 *)(ptr) == 0x0f) ? 2 : 1; \
EMIT_PTR((u8 *)(ptr) + offs_, disp_ - offs_, u32); \
if ((void *)(pos) != NULL) *(u8 **)(pos) = (u8 *)ptr; \
if ((void *)(pos) != NULL) *(u8 **)(pos) = (u8 *)ptr + offs_; \
} while (0)
#define emith_jump_patch_size() 6
#define emith_jump_patch_size() 4
#define emith_jump_patch_inrange(ptr, target) !0
#define emith_jump_at(ptr, target) do { \
u32 disp_ = (u8 *)(target) - ((u8 *)(ptr) + 5); \
EMIT_PTR(ptr, 0xe9, u8); \
EMIT_PTR((u8 *)(ptr) + 1, disp_, u32); \
} while (0)
#define emith_jump_at_size() 5
#define emith_call(ptr) do { \
u32 disp = (u8 *)(ptr) - ((u8 *)tcache_ptr + 5); \
@ -900,9 +909,9 @@ enum { xAX = 0, xCX, xDX, xBX, xSP, xBP, xSI, xDI, // x86-64,i386 common
#define emith_ret() \
EMIT_OP(0xc3)
#define emith_add_r_ret_imm(r, imm) do { \
emith_read_r_r_offs_ptr(r, xSP, 0); \
emith_add_r_r_ptr_imm(r, r, imm); \
#define emith_add_r_ret(r) do { \
EMIT_REX_IF(1, r, xSP); \
emith_deref_modrm(0x03, 0, r, xSP); /* add r, [xsp] */ \
} while (0)
#define emith_jump_reg(r) \
@ -974,7 +983,7 @@ enum { xAX = 0, xCX, xDX, xBX, xSP, xBP, xSI, xDI, // x86-64,i386 common
emith_move_r_imm(rd, imm); \
} while (0)
#define host_instructions_updated(base, end)
#define host_instructions_updated(base, end) (void)(base),(void)(end)
#define emith_update_cache() /**/
#define emith_rw_offs_max() 0xffffffff