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various small improvements and fixes

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This commit is contained in:
kub 2019-04-16 20:37:52 +02:00
parent f133766faa
commit d40a5af495
32 changed files with 372 additions and 241 deletions
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68
cpu/drc/emit_x86.c
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@ -194,6 +194,17 @@ enum { xAX = 0, xCX, xDX, xBX, xSP, xBP, xSI, xDI };
} \
} while (0)
#define emith_add_r_r_r_ptr(d, s1, s2) do { \
if (d == s1) { \
emith_add_r_r_ptr(d, s2); \
} else if (d == s2) { \
emith_add_r_r_ptr(d, s1); \
} else { \
emith_move_r_r_ptr(d, s1); \
emith_add_r_r_ptr(d, s2); \
} \
} while (0)
#define emith_sub_r_r_r(d, s1, s2) do { \
if (d == s1) { \
emith_sub_r_r(d, s2); \
@ -268,9 +279,16 @@ enum { xAX = 0, xCX, xDX, xBX, xSP, xBP, xSI, xDI };
rcache_free_tmp(tmp_); \
} while (0)
#define emith_add_r_r_r_lsr(d, s1, s2, lslimm) do { \
#define emith_add_r_r_r_lsl_ptr(d, s1, s2, lslimm) do { \
int tmp_ = rcache_get_tmp(); \
emith_lsr(tmp_, s2, lslimm); \
emith_lsl(tmp_, s2, lslimm); \
emith_add_r_r_r_ptr(d, s1, tmp_); \
rcache_free_tmp(tmp_); \
} while (0)
#define emith_add_r_r_r_lsr(d, s1, s2, lsrimm) do { \
int tmp_ = rcache_get_tmp(); \
emith_lsr(tmp_, s2, lsrimm); \
emith_add_r_r_r(d, s1, tmp_); \
rcache_free_tmp(tmp_); \
} while (0)
@ -297,6 +315,16 @@ enum { xAX = 0, xCX, xDX, xBX, xSP, xBP, xSI, xDI };
EMIT(imm, u32); \
} while (0)
#define emith_move_r_ptr_imm(r, imm) do { \
if ((uint64_t)(imm) <= UINT32_MAX) \
emith_move_r_imm(r, (uintptr_t)(imm)); \
else { \
EMIT_REX_IF(1, 0, r); \
EMIT_OP(0xb8 + (r)); \
EMIT((uint64_t)(imm), uint64_t); \
} \
} while (0)
#define emith_move_r_imm_s8(r, imm) \
emith_move_r_imm(r, (u32)(signed int)(signed char)(imm))
@ -421,27 +449,28 @@ enum { xAX = 0, xCX, xDX, xBX, xSP, xBP, xSI, xDI };
#define emith_sub_r_r_imm(d, s, imm) do { \
if (d != s) \
emith_move_r_r(d, s); \
if (imm) \
if ((s32)(imm) != 0) \
emith_sub_r_imm(d, imm); \
} while (0)
#define emith_and_r_r_imm(d, s, imm) do { \
if (d != s) \
emith_move_r_r(d, s); \
emith_and_r_imm(d, imm); \
if ((s32)(imm) != -1) \
emith_and_r_imm(d, imm); \
} while (0)
#define emith_or_r_r_imm(d, s, imm) do { \
if (d != s) \
emith_move_r_r(d, s); \
if ((s32)imm != 0) \
if ((s32)(imm) != 0) \
emith_or_r_imm(d, imm); \
} while (0)
#define emith_eor_r_r_imm(d, s, imm) do { \
if (d != s) \
emith_move_r_r(d, s); \
if ((s32)imm != 0) \
if ((s32)(imm) != 0) \
emith_eor_r_imm(d, imm); \
} while (0)
@ -612,31 +641,17 @@ enum { xAX = 0, xCX, xDX, xBX, xSP, xBP, xSI, xDI };
EMIT_REX_IF(1, r, rs); \
emith_deref_op(0x89, r, rs, offs)
// note: don't use prefixes on this
#define emith_read8_r_r_offs(r, rs, offs) do { \
int r_ = r; \
if (!is_abcdx(r)) \
r_ = rcache_get_tmp(); \
EMIT(0x0f, u8); \
emith_deref_op(0xb6, r_, rs, offs); \
if ((r) != r_) { \
emith_move_r_r(r, r_); \
rcache_free_tmp(r_); \
} \
emith_deref_op(0xb6, r, rs, offs); \
} while (0)
#define emith_read8s_r_r_offs(r, rs, offs) do { \
int r_ = r; \
if (!is_abcdx(r)) \
r_ = rcache_get_tmp(); \
EMIT(0x0f, u8); \
emith_deref_op(0xbe, r_, rs, offs); \
if ((r) != r_) { \
emith_move_r_r(r, r_); \
rcache_free_tmp(r_); \
} \
emith_deref_op(0xbe, r, rs, offs); \
} while (0)
// note: don't use prefixes on this
#define emith_write8_r_r_offs(r, rs, offs) do {\
int r_ = r; \
if (!is_abcdx(r)) { \
@ -664,16 +679,9 @@ enum { xAX = 0, xCX, xDX, xBX, xSP, xBP, xSI, xDI };
} while (0)
#define emith_read8_r_r_r(r, rs, rm) do { \
int r_ = r; \
if (!is_abcdx(r)) \
r_ = rcache_get_tmp(); \
EMIT(0x0f, u8); \
EMIT_OP_MODRM(0xb6, 0, r, 4); \
EMIT_SIB(0, rs, rm); /* mov r, [rm + rs * 1] */ \
if ((r) != r_) { \
emith_move_r_r(r, r_); \
rcache_free_tmp(r_); \
} \
} while (0)
#define emith_read16_r_r_r(r, rs, rm) do { \