diff options
Diffstat (limited to 'target-sparc')
| -rw-r--r-- | target-sparc/op_helper.c | 220 |
1 files changed, 140 insertions, 80 deletions
diff --git a/target-sparc/op_helper.c b/target-sparc/op_helper.c index 26e836b5a1..6deebd35d2 100644 --- a/target-sparc/op_helper.c +++ b/target-sparc/op_helper.c @@ -901,14 +901,15 @@ static uint32_t compute_C_flags(void) return env->psr & PSR_CARRY; } -static inline uint32_t get_NZ_icc(target_ulong dst) +static inline uint32_t get_NZ_icc(int32_t dst) { uint32_t ret = 0; - if (!(dst & 0xffffffffULL)) - ret |= PSR_ZERO; - if ((int32_t) (dst & 0xffffffffULL) < 0) - ret |= PSR_NEG; + if (dst == 0) { + ret = PSR_ZERO; + } else if (dst < 0) { + ret = PSR_NEG; + } return ret; } @@ -923,14 +924,15 @@ static uint32_t compute_C_flags_xcc(void) return env->xcc & PSR_CARRY; } -static inline uint32_t get_NZ_xcc(target_ulong dst) +static inline uint32_t get_NZ_xcc(target_long dst) { uint32_t ret = 0; - if (!dst) - ret |= PSR_ZERO; - if ((int64_t)dst < 0) - ret |= PSR_NEG; + if (!dst) { + ret = PSR_ZERO; + } else if (dst < 0) { + ret = PSR_NEG; + } return ret; } #endif @@ -939,8 +941,9 @@ static inline uint32_t get_V_div_icc(target_ulong src2) { uint32_t ret = 0; - if (src2 != 0) - ret |= PSR_OVF; + if (src2 != 0) { + ret = PSR_OVF; + } return ret; } @@ -958,26 +961,35 @@ static uint32_t compute_C_div(void) return 0; } -/* carry = (src1[31] & src2[31]) | ( ~dst[31] & (src1[31] | src2[31])) */ -static inline uint32_t get_C_add_icc(target_ulong dst, target_ulong src1, - target_ulong src2) +static inline uint32_t get_C_add_icc(uint32_t dst, uint32_t src1) { uint32_t ret = 0; - if (((src1 & (1ULL << 31)) & (src2 & (1ULL << 31))) - | ((~(dst & (1ULL << 31))) - & ((src1 & (1ULL << 31)) | (src2 & (1ULL << 31))))) - ret |= PSR_CARRY; + if (dst < src1) { + ret = PSR_CARRY; + } return ret; } -static inline uint32_t get_V_add_icc(target_ulong dst, target_ulong src1, - target_ulong src2) +static inline uint32_t get_C_addx_icc(uint32_t dst, uint32_t src1, + uint32_t src2) { uint32_t ret = 0; - if (((src1 ^ src2 ^ -1) & (src1 ^ dst)) & (1ULL << 31)) - ret |= PSR_OVF; + if (((src1 & src2) | (~dst & (src1 | src2))) & (1U << 31)) { + ret = PSR_CARRY; + } + return ret; +} + +static inline uint32_t get_V_add_icc(uint32_t dst, uint32_t src1, + uint32_t src2) +{ + uint32_t ret = 0; + + if (((src1 ^ src2 ^ -1) & (src1 ^ dst)) & (1U << 31)) { + ret = PSR_OVF; + } return ret; } @@ -986,8 +998,20 @@ static inline uint32_t get_C_add_xcc(target_ulong dst, target_ulong src1) { uint32_t ret = 0; - if (dst < src1) - ret |= PSR_CARRY; + if (dst < src1) { + ret = PSR_CARRY; + } + return ret; +} + +static inline uint32_t get_C_addx_xcc(target_ulong dst, target_ulong src1, + target_ulong src2) +{ + uint32_t ret = 0; + + if (((src1 & src2) | (~dst & (src1 | src2))) & (1ULL << 63)) { + ret = PSR_CARRY; + } return ret; } @@ -996,8 +1020,9 @@ static inline uint32_t get_V_add_xcc(target_ulong dst, target_ulong src1, { uint32_t ret = 0; - if (((src1 ^ src2 ^ -1) & (src1 ^ dst)) & (1ULL << 63)) - ret |= PSR_OVF; + if (((src1 ^ src2 ^ -1) & (src1 ^ dst)) & (1ULL << 63)) { + ret = PSR_OVF; + } return ret; } @@ -1022,14 +1047,14 @@ static uint32_t compute_all_add(void) uint32_t ret; ret = get_NZ_icc(CC_DST); - ret |= get_C_add_icc(CC_DST, CC_SRC, CC_SRC2); + ret |= get_C_add_icc(CC_DST, CC_SRC); ret |= get_V_add_icc(CC_DST, CC_SRC, CC_SRC2); return ret; } static uint32_t compute_C_add(void) { - return get_C_add_icc(CC_DST, CC_SRC, CC_SRC2); + return get_C_add_icc(CC_DST, CC_SRC); } #ifdef TARGET_SPARC64 @@ -1038,8 +1063,7 @@ static uint32_t compute_all_addx_xcc(void) uint32_t ret; ret = get_NZ_xcc(CC_DST); - ret |= get_C_add_xcc(CC_DST - CC_SRC2, CC_SRC); - ret |= get_C_add_xcc(CC_DST, CC_SRC); + ret |= get_C_addx_xcc(CC_DST, CC_SRC, CC_SRC2); ret |= get_V_add_xcc(CC_DST, CC_SRC, CC_SRC2); return ret; } @@ -1048,18 +1072,36 @@ static uint32_t compute_C_addx_xcc(void) { uint32_t ret; - ret = get_C_add_xcc(CC_DST - CC_SRC2, CC_SRC); - ret |= get_C_add_xcc(CC_DST, CC_SRC); + ret = get_C_addx_xcc(CC_DST, CC_SRC, CC_SRC2); return ret; } #endif +static uint32_t compute_all_addx(void) +{ + uint32_t ret; + + ret = get_NZ_icc(CC_DST); + ret |= get_C_addx_icc(CC_DST, CC_SRC, CC_SRC2); + ret |= get_V_add_icc(CC_DST, CC_SRC, CC_SRC2); + return ret; +} + +static uint32_t compute_C_addx(void) +{ + uint32_t ret; + + ret = get_C_addx_icc(CC_DST, CC_SRC, CC_SRC2); + return ret; +} + static inline uint32_t get_V_tag_icc(target_ulong src1, target_ulong src2) { uint32_t ret = 0; - if ((src1 | src2) & 0x3) - ret |= PSR_OVF; + if ((src1 | src2) & 0x3) { + ret = PSR_OVF; + } return ret; } @@ -1068,51 +1110,50 @@ static uint32_t compute_all_tadd(void) uint32_t ret; ret = get_NZ_icc(CC_DST); - ret |= get_C_add_icc(CC_DST, CC_SRC, CC_SRC2); + ret |= get_C_add_icc(CC_DST, CC_SRC); ret |= get_V_add_icc(CC_DST, CC_SRC, CC_SRC2); ret |= get_V_tag_icc(CC_SRC, CC_SRC2); return ret; } -static uint32_t compute_C_tadd(void) -{ - return get_C_add_icc(CC_DST, CC_SRC, CC_SRC2); -} - static uint32_t compute_all_taddtv(void) { uint32_t ret; ret = get_NZ_icc(CC_DST); - ret |= get_C_add_icc(CC_DST, CC_SRC, CC_SRC2); + ret |= get_C_add_icc(CC_DST, CC_SRC); return ret; } -static uint32_t compute_C_taddtv(void) +static inline uint32_t get_C_sub_icc(uint32_t src1, uint32_t src2) { - return get_C_add_icc(CC_DST, CC_SRC, CC_SRC2); + uint32_t ret = 0; + + if (src1 < src2) { + ret = PSR_CARRY; + } + return ret; } -/* carry = (~src1[31] & src2[31]) | ( dst[31] & (~src1[31] | src2[31])) */ -static inline uint32_t get_C_sub_icc(target_ulong dst, target_ulong src1, - target_ulong src2) +static inline uint32_t get_C_subx_icc(uint32_t dst, uint32_t src1, + uint32_t src2) { uint32_t ret = 0; - if (((~(src1 & (1ULL << 31))) & (src2 & (1ULL << 31))) - | ((dst & (1ULL << 31)) & (( ~(src1 & (1ULL << 31))) - | (src2 & (1ULL << 31))))) - ret |= PSR_CARRY; + if (((~src1 & src2) | (dst & (~src1 | src2))) & (1U << 31)) { + ret = PSR_CARRY; + } return ret; } -static inline uint32_t get_V_sub_icc(target_ulong dst, target_ulong src1, - target_ulong src2) +static inline uint32_t get_V_sub_icc(uint32_t dst, uint32_t src1, + uint32_t src2) { uint32_t ret = 0; - if (((src1 ^ src2) & (src1 ^ dst)) & (1ULL << 31)) - ret |= PSR_OVF; + if (((src1 ^ src2) & (src1 ^ dst)) & (1U << 31)) { + ret = PSR_OVF; + } return ret; } @@ -1122,8 +1163,20 @@ static inline uint32_t get_C_sub_xcc(target_ulong src1, target_ulong src2) { uint32_t ret = 0; - if (src1 < src2) - ret |= PSR_CARRY; + if (src1 < src2) { + ret = PSR_CARRY; + } + return ret; +} + +static inline uint32_t get_C_subx_xcc(target_ulong dst, target_ulong src1, + target_ulong src2) +{ + uint32_t ret = 0; + + if (((~src1 & src2) | (dst & (~src1 | src2))) & (1ULL << 63)) { + ret = PSR_CARRY; + } return ret; } @@ -1132,8 +1185,9 @@ static inline uint32_t get_V_sub_xcc(target_ulong dst, target_ulong src1, { uint32_t ret = 0; - if (((src1 ^ src2) & (src1 ^ dst)) & (1ULL << 63)) - ret |= PSR_OVF; + if (((src1 ^ src2) & (src1 ^ dst)) & (1ULL << 63)) { + ret = PSR_OVF; + } return ret; } @@ -1158,14 +1212,14 @@ static uint32_t compute_all_sub(void) uint32_t ret; ret = get_NZ_icc(CC_DST); - ret |= get_C_sub_icc(CC_DST, CC_SRC, CC_SRC2); + ret |= get_C_sub_icc(CC_SRC, CC_SRC2); ret |= get_V_sub_icc(CC_DST, CC_SRC, CC_SRC2); return ret; } static uint32_t compute_C_sub(void) { - return get_C_sub_icc(CC_DST, CC_SRC, CC_SRC2); + return get_C_sub_icc(CC_SRC, CC_SRC2); } #ifdef TARGET_SPARC64 @@ -1174,8 +1228,7 @@ static uint32_t compute_all_subx_xcc(void) uint32_t ret; ret = get_NZ_xcc(CC_DST); - ret |= get_C_sub_xcc(CC_DST - CC_SRC2, CC_SRC); - ret |= get_C_sub_xcc(CC_DST, CC_SRC2); + ret |= get_C_subx_xcc(CC_DST, CC_SRC, CC_SRC2); ret |= get_V_sub_xcc(CC_DST, CC_SRC, CC_SRC2); return ret; } @@ -1184,40 +1237,47 @@ static uint32_t compute_C_subx_xcc(void) { uint32_t ret; - ret = get_C_sub_xcc(CC_DST - CC_SRC2, CC_SRC); - ret |= get_C_sub_xcc(CC_DST, CC_SRC2); + ret = get_C_subx_xcc(CC_DST, CC_SRC, CC_SRC2); return ret; } #endif -static uint32_t compute_all_tsub(void) +static uint32_t compute_all_subx(void) { uint32_t ret; ret = get_NZ_icc(CC_DST); - ret |= get_C_sub_icc(CC_DST, CC_SRC, CC_SRC2); + ret |= get_C_subx_icc(CC_DST, CC_SRC, CC_SRC2); ret |= get_V_sub_icc(CC_DST, CC_SRC, CC_SRC2); - ret |= get_V_tag_icc(CC_SRC, CC_SRC2); return ret; } -static uint32_t compute_C_tsub(void) +static uint32_t compute_C_subx(void) { - return get_C_sub_icc(CC_DST, CC_SRC, CC_SRC2); + uint32_t ret; + + ret = get_C_subx_icc(CC_DST, CC_SRC, CC_SRC2); + return ret; } -static uint32_t compute_all_tsubtv(void) +static uint32_t compute_all_tsub(void) { uint32_t ret; ret = get_NZ_icc(CC_DST); - ret |= get_C_sub_icc(CC_DST, CC_SRC, CC_SRC2); + ret |= get_C_sub_icc(CC_SRC, CC_SRC2); + ret |= get_V_sub_icc(CC_DST, CC_SRC, CC_SRC2); + ret |= get_V_tag_icc(CC_SRC, CC_SRC2); return ret; } -static uint32_t compute_C_tsubtv(void) +static uint32_t compute_all_tsubtv(void) { - return get_C_sub_icc(CC_DST, CC_SRC, CC_SRC2); + uint32_t ret; + + ret = get_NZ_icc(CC_DST); + ret |= get_C_sub_icc(CC_SRC, CC_SRC2); + return ret; } static uint32_t compute_all_logic(void) @@ -1247,13 +1307,13 @@ static const CCTable icc_table[CC_OP_NB] = { [CC_OP_FLAGS] = { compute_all_flags, compute_C_flags }, [CC_OP_DIV] = { compute_all_div, compute_C_div }, [CC_OP_ADD] = { compute_all_add, compute_C_add }, - [CC_OP_ADDX] = { compute_all_add, compute_C_add }, - [CC_OP_TADD] = { compute_all_tadd, compute_C_tadd }, - [CC_OP_TADDTV] = { compute_all_taddtv, compute_C_taddtv }, + [CC_OP_ADDX] = { compute_all_addx, compute_C_addx }, + [CC_OP_TADD] = { compute_all_tadd, compute_C_add }, + [CC_OP_TADDTV] = { compute_all_taddtv, compute_C_add }, [CC_OP_SUB] = { compute_all_sub, compute_C_sub }, - [CC_OP_SUBX] = { compute_all_sub, compute_C_sub }, - [CC_OP_TSUB] = { compute_all_tsub, compute_C_tsub }, - [CC_OP_TSUBTV] = { compute_all_tsubtv, compute_C_tsubtv }, + [CC_OP_SUBX] = { compute_all_subx, compute_C_subx }, + [CC_OP_TSUB] = { compute_all_tsub, compute_C_sub }, + [CC_OP_TSUBTV] = { compute_all_tsubtv, compute_C_sub }, [CC_OP_LOGIC] = { compute_all_logic, compute_C_logic }, }; 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