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ARM: Use a more robust ROR idiom

This commit is contained in:
Jeffrey Pfau 2014-11-17 01:10:17 -08:00
parent 9e400e86da
commit 853bcec0c2
1 changed files with 2 additions and 1 deletions
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3
src/arm/isa-inlines.h
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@ -22,7 +22,8 @@
#define ARM_COND_AL 1
#define ARM_SIGN(I) ((I) >> 31)
#define ARM_ROR(I, ROTATE) ((((uint32_t) (I)) >> ROTATE) | ((I) << (32 - ROTATE)))
#define ARM_ROR(I, ROTATE) ((((uint32_t) (I)) >> ROTATE) | ((uint32_t) (I) << ((-ROTATE) & 31)))
#define ARM_CARRY_FROM(M, N, D) (((uint32_t) (M) >> 31) + ((uint32_t) (N) >> 31) > ((uint32_t) (D) >> 31))
#define ARM_BORROW_FROM(M, N, D) (((uint32_t) (M)) >= ((uint32_t) (N)))