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improved sh2 clock handling, bug fixing + small improvement to drc emitters

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This commit is contained in:
kub 2019-03-20 23:39:45 +01:00
parent f5939109c4
commit 2fa02d5a63
8 changed files with 77 additions and 62 deletions
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21
cpu/drc/emit_x86.c
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@ -421,13 +421,10 @@ enum { xAX = 0, xCX, xDX, xBX, xSP, xBP, xSI, xDI };
rmr = s2; \
} \
EMIT_OP_MODRM(0xf7, 3, op, rmr); /* xMUL rmr */ \
/* XXX: using push/pop for the case of edx->eax; eax->edx */ \
if (dhi != xDX && dhi != -1) \
emith_push(xDX); \
if (dlo != xAX) \
emith_move_r_r(dlo, xAX); \
if (dhi != xDX && dhi != -1) \
emith_pop(dhi); \
EMIT_OP(0x90 + (dlo)); /* XCHG eax, dlo */ \
if (dhi != xDX && dhi != -1 && !(dhi == xAX && dlo == xDX)) \
emith_move_r_r(dhi, (dlo == xDX ? xAX : xDX)); \
if (dlo != xDX && dhi != xDX) \
emith_pop(xDX); \
if (dlo != xAX && dhi != xAX) \
@ -474,12 +471,12 @@ enum { xAX = 0, xCX, xDX, xBX, xSP, xBP, xSI, xDI };
#define emith_deref_op(op, r, rs, offs) do { \
/* mov r <-> [ebp+#offs] */ \
if ((offs) >= 0x80) { \
if (abs(offs) >= 0x80) { \
EMIT_OP_MODRM64(op, 2, r, rs); \
EMIT(offs, u32); \
} else { \
EMIT_OP_MODRM64(op, 1, r, rs); \
EMIT(offs, u8); \
EMIT((u8)offs, u8); \
} \
} while (0)
@ -496,7 +493,8 @@ enum { xAX = 0, xCX, xDX, xBX, xSP, xBP, xSI, xDI };
int r_ = r; \
if (!is_abcdx(r)) \
r_ = rcache_get_tmp(); \
emith_deref_op(0x8a, r_, rs, offs); \
EMIT(0x0f, u8); \
emith_deref_op(0xb6, r_, rs, offs); \
if ((r) != r_) { \
emith_move_r_r(r, r_); \
rcache_free_tmp(r_); \
@ -515,8 +513,8 @@ enum { xAX = 0, xCX, xDX, xBX, xSP, xBP, xSI, xDI };
} while (0)
#define emith_read16_r_r_offs(r, rs, offs) do { \
EMIT(0x66, u8); /* operand override */ \
emith_read_r_r_offs(r, rs, offs); \
EMIT(0x0f, u8); \
emith_deref_op(0xb7, r, rs, offs); \
} while (0)
#define emith_write16_r_r_offs(r, rs, offs) do { \
@ -688,6 +686,7 @@ enum { xAX = 0, xCX, xDX, xBX, xSP, xBP, xSI, xDI };
case 0: rd = xDI; break; \
case 1: rd = xSI; break; \
case 2: rd = xDX; break; \
case 2: rd = xBX; break; \
}
#define emith_sh2_drc_entry() { \