Revision bbaf29c7 target-cris/op.c
| b/target-cris/op.c | ||
|---|---|---|
| 967 | 967 |
The N flag is set according to the selected bit in the dest reg. |
| 968 | 968 |
The Z flag is set if the selected bit and all bits to the right are |
| 969 | 969 |
zero. |
| 970 |
The X flag is cleared. |
|
| 971 |
Other flags are left untouched. |
|
| 970 | 972 |
The destination reg is not affected.*/ |
| 971 | 973 |
unsigned int fz, sbit, bset, mask, masked_t0; |
| 972 | 974 |
|
| ... | ... | |
| 975 | 977 |
mask = sbit == 31 ? -1 : (1 << (sbit + 1)) - 1; |
| 976 | 978 |
masked_t0 = T0 & mask; |
| 977 | 979 |
fz = !(masked_t0 | bset); |
| 980 |
|
|
| 981 |
/* Clear the X, N and Z flags. */ |
|
| 982 |
T0 = env->pregs[PR_CCS] & ~(X_FLAG | N_FLAG | Z_FLAG); |
|
| 978 | 983 |
/* Set the N and Z flags accordingly. */ |
| 979 |
T0 = (bset << 3) | (fz << 2); |
|
| 984 |
T0 |= (bset << 3) | (fz << 2);
|
|
| 980 | 985 |
RETURN(); |
| 981 | 986 |
} |
| 982 | 987 |
|
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