diff options
| -rw-r--r-- | tcg/arm/tcg-target.c | 66 | ||||
| -rw-r--r-- | tcg/arm/tcg-target.h | 4 |
2 files changed, 50 insertions, 20 deletions
diff --git a/tcg/arm/tcg-target.c b/tcg/arm/tcg-target.c index 602fdf2..efcefe2 100644 --- a/tcg/arm/tcg-target.c +++ b/tcg/arm/tcg-target.c @@ -485,6 +485,48 @@ static inline void tcg_out_smull32(TCGContext *s, } } +static inline void tcg_out_ext8s(TCGContext *s, int cond, + int rd, int rn) +{ + if (use_armv6_instructions) { + /* sxtb */ + tcg_out32(s, 0x06af0070 | (cond << 28) | (rd << 12) | rn); + } else { + tcg_out_dat_reg(s, COND_AL, ARITH_MOV, + rd, 0, rn, SHIFT_IMM_LSL(24)); + tcg_out_dat_reg(s, COND_AL, ARITH_MOV, + rd, 0, rd, SHIFT_IMM_ASR(24)); + } +} + +static inline void tcg_out_ext16s(TCGContext *s, int cond, + int rd, int rn) +{ + if (use_armv6_instructions) { + /* sxth */ + tcg_out32(s, 0x06bf0070 | (cond << 28) | (rd << 12) | rn); + } else { + tcg_out_dat_reg(s, COND_AL, ARITH_MOV, + rd, 0, rn, SHIFT_IMM_LSL(16)); + tcg_out_dat_reg(s, COND_AL, ARITH_MOV, + rd, 0, rd, SHIFT_IMM_ASR(16)); + } +} + +static inline void tcg_out_ext16u(TCGContext *s, int cond, + int rd, int rn) +{ + if (use_armv6_instructions) { + /* uxth */ + tcg_out32(s, 0x06ff0070 | (cond << 28) | (rd << 12) | rn); + } else { + tcg_out_dat_reg(s, COND_AL, ARITH_MOV, + rd, 0, rn, SHIFT_IMM_LSL(16)); + tcg_out_dat_reg(s, COND_AL, ARITH_MOV, + rd, 0, rd, SHIFT_IMM_LSR(16)); + } +} + static inline void tcg_out_ld32_12(TCGContext *s, int cond, int rd, int rn, tcg_target_long im) { @@ -1503,26 +1545,13 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode opc, break; case INDEX_op_ext8s_i32: - if (use_armv6_instructions) { - /* sxtb */ - tcg_out32(s, 0xe6af0070 | (args[0] << 12) | args[1]); - } else { - tcg_out_dat_reg(s, COND_AL, ARITH_MOV, - args[0], 0, args[1], SHIFT_IMM_LSL(24)); - tcg_out_dat_reg(s, COND_AL, ARITH_MOV, - args[0], 0, args[0], SHIFT_IMM_ASR(24)); - } + tcg_out_ext8s(s, COND_AL, args[0], args[1]); break; case INDEX_op_ext16s_i32: - if (use_armv6_instructions) { - /* sxth */ - tcg_out32(s, 0xe6bf0070 | (args[0] << 12) | args[1]); - } else { - tcg_out_dat_reg(s, COND_AL, ARITH_MOV, - args[0], 0, args[1], SHIFT_IMM_LSL(16)); - tcg_out_dat_reg(s, COND_AL, ARITH_MOV, - args[0], 0, args[0], SHIFT_IMM_ASR(16)); - } + tcg_out_ext16s(s, COND_AL, args[0], args[1]); + break; + case INDEX_op_ext16u_i32: + tcg_out_ext16u(s, COND_AL, args[0], args[1]); break; default: @@ -1604,6 +1633,7 @@ static const TCGTargetOpDef arm_op_defs[] = { { INDEX_op_ext8s_i32, { "r", "r" } }, { INDEX_op_ext16s_i32, { "r", "r" } }, + { INDEX_op_ext16u_i32, { "r", "r" } }, { -1 }, }; diff --git a/tcg/arm/tcg-target.h b/tcg/arm/tcg-target.h index bc08f91..1f6d665 100644 --- a/tcg/arm/tcg-target.h +++ b/tcg/arm/tcg-target.h @@ -60,8 +60,8 @@ enum { /* optional instructions */ #define TCG_TARGET_HAS_ext8s_i32 #define TCG_TARGET_HAS_ext16s_i32 -// #define TCG_TARGET_HAS_ext8u_i32 -// #define TCG_TARGET_HAS_ext16u_i32 +#undef TCG_TARGET_HAS_ext8u_i32 /* and r0, r1, #0xff */ +#define TCG_TARGET_HAS_ext16u_i32 // #define TCG_TARGET_HAS_bswap16_i32 // #define TCG_TARGET_HAS_bswap32_i32 #define TCG_TARGET_HAS_not_i32 |
