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32x: drc: finish MAC, gen drc entry/exit (for statically alloced regs)

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git-svn-id: file:///home/notaz/opt/svn/PicoDrive@837 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2009-12-07 12:30:56 +00:00
parent 20e0619b16
commit 8796b7ee88
7 changed files with 297 additions and 189 deletions
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49
cpu/drc/emit_x86.c
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@ -202,6 +202,11 @@ enum { xAX = 0, xCX, xDX, xBX, xSP, xBP, xSI, xDI };
emith_arith_r_imm(4, r, ~(imm))
// fake conditionals (using SJMP instead)
#define emith_move_r_imm_c(cond, r, imm) { \
(void)(cond); \
emith_move_r_imm(r, imm); \
}
#define emith_add_r_imm_c(cond, r, imm) { \
(void)(cond); \
emith_add_r_imm(r, imm); \
@ -365,6 +370,7 @@ enum { xAX = 0, xCX, xDX, xBX, xSP, xBP, xSI, xDI };
#define emith_subf_r_r emith_sub_r_r
#define emith_adcf_r_r emith_adc_r_r
#define emith_sbcf_r_r emith_sbc_r_r
#define emith_eorf_r_r emith_eor_r_r
#define emith_negcf_r_r emith_negc_r_r
#define emith_lslf emith_lsl
@ -376,15 +382,27 @@ enum { xAX = 0, xCX, xDX, xBX, xSP, xBP, xSI, xDI };
#define emith_rorcf emith_rorc
// XXX: offs is 8bit only
#define emith_ctx_read(r, offs) { \
#define emith_ctx_read(r, offs) do { \
EMIT_OP_MODRM(0x8b, 1, r, xBP); \
EMIT(offs, u8); /* mov tmp, [ebp+#offs] */ \
}
} while (0)
#define emith_ctx_write(r, offs) { \
#define emith_ctx_read_multiple(r, offs, cnt, tmpr) do { \
int r_ = r, offs_ = offs, cnt_ = cnt; \
for (; cnt > 0; r_++, offs_ += 4, cnt_--) \
emith_ctx_read(r_, offs_); \
} while (0)
#define emith_ctx_write(r, offs) do { \
EMIT_OP_MODRM(0x89, 1, r, xBP); \
EMIT(offs, u8); /* mov [ebp+#offs], tmp */ \
}
} while (0)
#define emith_ctx_write_multiple(r, offs, cnt, tmpr) do { \
int r_ = r, offs_ = offs, cnt_ = cnt; \
for (; cnt > 0; r_++, offs_ += 4, cnt_--) \
emith_ctx_write(r_, offs_); \
} while (0)
#define emith_jump(ptr) { \
u32 disp = (u32)ptr - ((u32)tcache_ptr + 5); \
@ -401,15 +419,21 @@ enum { xAX = 0, xCX, xDX, xBX, xSP, xBP, xSI, xDI };
#define emith_call_cond(cond, ptr) \
emith_call(ptr)
// "simple" or "short" jump
#define EMITH_SJMP_START(cond) { \
#define emith_jump_reg(r) \
EMIT_OP_MODRM(0xff, 3, 4, r)
#define EMITH_JMP_START(cond) { \
u8 *cond_ptr; \
JMP8_POS(cond_ptr)
#define EMITH_SJMP_END(cond) \
#define EMITH_JMP_END(cond) \
JMP8_EMIT(cond, cond_ptr); \
}
// "simple" jump (no more then a few insns)
#define EMITH_SJMP_START EMITH_JMP_START
#define EMITH_SJMP_END EMITH_JMP_END
#define host_arg2reg(rd, arg) \
switch (arg) { \
case 0: rd = xAX; break; \
@ -430,6 +454,17 @@ enum { xAX = 0, xCX, xDX, xBX, xSP, xBP, xSI, xDI };
}
/* SH2 drc specific */
#define emith_sh2_drc_entry() { \
emith_push(xBX); \
emith_push(xBP); \
}
#define emith_sh2_drc_exit() { \
emith_pop(xBP); \
emith_pop(xBX); \
EMIT_OP(0xc3); /* ret */\
}
#define emith_sh2_test_t() { \
int t = rcache_get_reg(SHR_SR, RC_GR_READ); \
EMIT_OP_MODRM(0xf6, 3, 0, t); \