diff options
Diffstat (limited to 'tcg/i386')
| -rw-r--r-- | tcg/i386/tcg-target.c | 35 |
1 files changed, 24 insertions, 11 deletions
diff --git a/tcg/i386/tcg-target.c b/tcg/i386/tcg-target.c index 4497010e53..949e974e65 100644 --- a/tcg/i386/tcg-target.c +++ b/tcg/i386/tcg-target.c @@ -166,6 +166,8 @@ static inline int tcg_target_const_match(tcg_target_long val, #define OPC_MOVB_EvGv (0x88) /* stores, more or less */ #define OPC_MOVL_EvGv (0x89) /* stores, more or less */ #define OPC_MOVL_GvEv (0x8b) /* loads, more or less */ +#define OPC_MOVSBL (0xbe | P_EXT) +#define OPC_MOVSWL (0xbf | P_EXT) #define OPC_MOVZBL (0xb6 | P_EXT) #define OPC_MOVZWL (0xb7 | P_EXT) #define OPC_SHIFT_1 (0xd1) @@ -330,12 +332,25 @@ static inline void tcg_out_ext8u(TCGContext *s, int dest, int src) tcg_out_modrm(s, OPC_MOVZBL, dest, src); } +static void tcg_out_ext8s(TCGContext *s, int dest, int src) +{ + /* movsbl */ + assert(src < 4); + tcg_out_modrm(s, OPC_MOVSBL, dest, src); +} + static inline void tcg_out_ext16u(TCGContext *s, int dest, int src) { /* movzwl */ tcg_out_modrm(s, OPC_MOVZWL, dest, src); } +static inline void tcg_out_ext16s(TCGContext *s, int dest, int src) +{ + /* movswl */ + tcg_out_modrm(s, OPC_MOVSWL, dest, src); +} + static inline void tgen_arithi(TCGContext *s, int c, int r0, int32_t val, int cf) { if (!cf && ((c == ARITH_ADD && val == 1) || (c == ARITH_SUB && val == -1))) { @@ -680,12 +695,10 @@ static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, switch(opc) { case 0 | 4: - /* movsbl */ - tcg_out_modrm(s, 0xbe | P_EXT, data_reg, TCG_REG_EAX); + tcg_out_ext8s(s, data_reg, TCG_REG_EAX); break; case 1 | 4: - /* movswl */ - tcg_out_modrm(s, 0xbf | P_EXT, data_reg, TCG_REG_EAX); + tcg_out_ext16s(s, data_reg, TCG_REG_EAX); break; case 0: tcg_out_ext8u(s, data_reg, TCG_REG_EAX); @@ -735,7 +748,7 @@ static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, break; case 0 | 4: /* movsbl */ - tcg_out_modrm_offset(s, 0xbe | P_EXT, data_reg, r0, GUEST_BASE); + tcg_out_modrm_offset(s, OPC_MOVSBL, data_reg, r0, GUEST_BASE); break; case 1: /* movzwl */ @@ -746,12 +759,12 @@ static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, break; case 1 | 4: /* movswl */ - tcg_out_modrm_offset(s, 0xbf | P_EXT, data_reg, r0, GUEST_BASE); + tcg_out_modrm_offset(s, OPC_MOVSWL, data_reg, r0, GUEST_BASE); if (bswap) { tcg_out_rolw_8(s, data_reg); /* movswl data_reg, data_reg */ - tcg_out_modrm(s, 0xbf | P_EXT, data_reg, data_reg); + tcg_out_modrm(s, OPC_MOVSWL, data_reg, data_reg); } break; case 2: @@ -1044,7 +1057,7 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode opc, break; case INDEX_op_ld8s_i32: /* movsbl */ - tcg_out_modrm_offset(s, 0xbe | P_EXT, args[0], args[1], args[2]); + tcg_out_modrm_offset(s, OPC_MOVSBL, args[0], args[1], args[2]); break; case INDEX_op_ld16u_i32: /* movzwl */ @@ -1052,7 +1065,7 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode opc, break; case INDEX_op_ld16s_i32: /* movswl */ - tcg_out_modrm_offset(s, 0xbf | P_EXT, args[0], args[1], args[2]); + tcg_out_modrm_offset(s, OPC_MOVSWL, args[0], args[1], args[2]); break; case INDEX_op_ld_i32: tcg_out_ld(s, TCG_TYPE_I32, args[0], args[1], args[2]); @@ -1180,10 +1193,10 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode opc, break; case INDEX_op_ext8s_i32: - tcg_out_modrm(s, 0xbe | P_EXT, args[0], args[1]); + tcg_out_ext8s(s, args[0], args[1]); break; case INDEX_op_ext16s_i32: - tcg_out_modrm(s, 0xbf | P_EXT, args[0], args[1]); + tcg_out_ext16s(s, args[0], args[1]); break; case INDEX_op_ext8u_i32: tcg_out_ext8u(s, args[0], args[1]); |