diff options
| -rw-r--r-- | tcg/i386/tcg-target.c | 24 |
1 files changed, 16 insertions, 8 deletions
diff --git a/tcg/i386/tcg-target.c b/tcg/i386/tcg-target.c index 753b3a1c64..7161fe0dd4 100644 --- a/tcg/i386/tcg-target.c +++ b/tcg/i386/tcg-target.c @@ -240,13 +240,14 @@ static inline int tcg_target_const_match(tcg_target_long val, #endif #define P_EXT 0x100 /* 0x0f opcode prefix */ -#define P_DATA16 0x200 /* 0x66 opcode prefix */ +#define P_EXT38 0x200 /* 0x0f 0x38 opcode prefix */ +#define P_DATA16 0x400 /* 0x66 opcode prefix */ #if TCG_TARGET_REG_BITS == 64 -# define P_ADDR32 0x400 /* 0x67 opcode prefix */ -# define P_REXW 0x800 /* Set REX.W = 1 */ -# define P_REXB_R 0x1000 /* REG field as byte register */ -# define P_REXB_RM 0x2000 /* R/M field as byte register */ -# define P_GS 0x4000 /* gs segment override */ +# define P_ADDR32 0x800 /* 0x67 opcode prefix */ +# define P_REXW 0x1000 /* Set REX.W = 1 */ +# define P_REXB_R 0x2000 /* REG field as byte register */ +# define P_REXB_RM 0x4000 /* R/M field as byte register */ +# define P_GS 0x8000 /* gs segment override */ #else # define P_ADDR32 0 # define P_REXW 0 @@ -398,9 +399,13 @@ static void tcg_out_opc(TCGContext *s, int opc, int r, int rm, int x) tcg_out8(s, (uint8_t)(rex | 0x40)); } - if (opc & P_EXT) { + if (opc & (P_EXT | P_EXT38)) { tcg_out8(s, 0x0f); + if (opc & P_EXT38) { + tcg_out8(s, 0x38); + } } + tcg_out8(s, opc); } #else @@ -409,8 +414,11 @@ static void tcg_out_opc(TCGContext *s, int opc) if (opc & P_DATA16) { tcg_out8(s, 0x66); } - if (opc & P_EXT) { + if (opc & (P_EXT | P_EXT38)) { tcg_out8(s, 0x0f); + if (opc & P_EXT38) { + tcg_out8(s, 0x38); + } } tcg_out8(s, opc); } |