Revision d4b0d468 target-sparc/op_helper.c
| b/target-sparc/op_helper.c | ||
|---|---|---|
| 902 | 902 |
} |
| 903 | 903 |
#endif |
| 904 | 904 |
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| 905 |
static inline uint32_t get_C_sub_icc(target_ulong src1, target_ulong src2) |
|
| 906 |
{
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| 907 |
uint32_t ret = 0; |
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| 908 |
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| 909 |
if ((src1 & 0xffffffffULL) < (src2 & 0xffffffffULL)) |
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| 910 |
ret |= PSR_CARRY; |
|
| 911 |
return ret; |
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| 912 |
} |
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| 913 |
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| 914 |
static inline uint32_t get_V_sub_icc(target_ulong dst, target_ulong src1, |
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| 915 |
target_ulong src2) |
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| 916 |
{
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| 917 |
uint32_t ret = 0; |
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| 918 |
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| 919 |
if (((src1 ^ src2) & (src1 ^ dst)) & (1ULL << 31)) |
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| 920 |
ret |= PSR_OVF; |
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| 921 |
return ret; |
|
| 922 |
} |
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| 923 |
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|
| 924 |
static uint32_t compute_all_sub(void) |
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| 925 |
{
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| 926 |
uint32_t ret; |
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| 927 |
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| 928 |
ret = get_NZ_icc(CC_DST); |
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| 929 |
ret |= get_C_sub_icc(CC_SRC, CC_SRC2); |
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| 930 |
ret |= get_V_sub_icc(CC_DST, CC_SRC, CC_SRC2); |
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| 931 |
return ret; |
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| 932 |
} |
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| 933 |
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| 934 |
static uint32_t compute_C_sub(void) |
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| 935 |
{
|
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| 936 |
return get_C_sub_icc(CC_SRC, CC_SRC2); |
|
| 937 |
} |
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| 938 |
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| 939 |
#ifdef TARGET_SPARC64 |
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| 940 |
static inline uint32_t get_C_sub_xcc(target_ulong src1, target_ulong src2) |
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| 941 |
{
|
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| 942 |
uint32_t ret = 0; |
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| 943 |
|
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| 944 |
if (src1 < src2) |
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| 945 |
ret |= PSR_CARRY; |
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| 946 |
return ret; |
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| 947 |
} |
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| 948 |
|
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| 949 |
static inline uint32_t get_V_sub_xcc(target_ulong dst, target_ulong src1, |
|
| 950 |
target_ulong src2) |
|
| 951 |
{
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| 952 |
uint32_t ret = 0; |
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| 953 |
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| 954 |
if (((src1 ^ src2) & (src1 ^ dst)) & (1ULL << 63)) |
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| 955 |
ret |= PSR_OVF; |
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| 956 |
return ret; |
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| 957 |
} |
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| 958 |
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| 959 |
static uint32_t compute_all_sub_xcc(void) |
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| 960 |
{
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| 961 |
uint32_t ret; |
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| 962 |
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| 963 |
ret = get_NZ_xcc(CC_DST); |
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| 964 |
ret |= get_C_sub_xcc(CC_SRC, CC_SRC2); |
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| 965 |
ret |= get_V_sub_xcc(CC_DST, CC_SRC, CC_SRC2); |
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| 966 |
return ret; |
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| 967 |
} |
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| 968 |
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| 969 |
static uint32_t compute_C_sub_xcc(void) |
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| 970 |
{
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| 971 |
return get_C_sub_xcc(CC_SRC, CC_SRC2); |
|
| 972 |
} |
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| 973 |
#endif |
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| 974 |
|
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| 905 | 975 |
static uint32_t compute_all_logic(void) |
| 906 | 976 |
{
|
| 907 | 977 |
return get_NZ_icc(CC_DST); |
| ... | ... | |
| 929 | 999 |
[CC_OP_FLAGS] = { compute_all_flags, compute_C_flags },
|
| 930 | 1000 |
[CC_OP_ADD] = { compute_all_add, compute_C_add },
|
| 931 | 1001 |
[CC_OP_ADDX] = { compute_all_addx, compute_C_addx },
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| 1002 |
[CC_OP_SUB] = { compute_all_sub, compute_C_sub },
|
|
| 932 | 1003 |
[CC_OP_LOGIC] = { compute_all_logic, compute_C_logic },
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| 933 | 1004 |
}; |
| 934 | 1005 |
|
| ... | ... | |
| 938 | 1009 |
[CC_OP_FLAGS] = { compute_all_flags_xcc, compute_C_flags_xcc },
|
| 939 | 1010 |
[CC_OP_ADD] = { compute_all_add_xcc, compute_C_add_xcc },
|
| 940 | 1011 |
[CC_OP_ADDX] = { compute_all_addx_xcc, compute_C_addx_xcc },
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| 1012 |
[CC_OP_SUB] = { compute_all_sub_xcc, compute_C_sub_xcc },
|
|
| 941 | 1013 |
[CC_OP_LOGIC] = { compute_all_logic_xcc, compute_C_logic },
|
| 942 | 1014 |
}; |
| 943 | 1015 |
#endif |
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