diff options
Diffstat (limited to 'src/runtime/memclr_ppc64x.s')
| -rw-r--r-- | src/runtime/memclr_ppc64x.s | 20 |
1 files changed, 15 insertions, 5 deletions
diff --git a/src/runtime/memclr_ppc64x.s b/src/runtime/memclr_ppc64x.s index f0b13b40ae..bc4b3fc283 100644 --- a/src/runtime/memclr_ppc64x.s +++ b/src/runtime/memclr_ppc64x.s @@ -111,11 +111,21 @@ nozerolarge: STXVL V0, R3, R7 RET #else - MOVD R5, CTR // set up to clear tail bytes -zerotailloop: - MOVB R0, 0(R3) // clear single bytes - ADD $1, R3 - BDNZ zerotailloop // dec ctr, br zerotailloop if ctr not 0 + CMP R5, $4 + BLT next2 + MOVW R0, 0(R3) + ADD $4, R3 + ADD $-4, R5 +next2: + CMP R5, $2 + BLT next1 + MOVH R0, 0(R3) + ADD $2, R3 + ADD $-2, R5 +next1: + CMP R5, $0 + BC 12, 2, LR // beqlr + MOVB R0, 0(R3) RET #endif |