barak/go-countlines
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built on arm64

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This commit is contained in:
Barak Michener 2021-11-15 17:01:15 -08:00
parent 235bcd7a0c
commit a0ee8f6e0b
3 changed files with 20 additions and 5 deletions
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9
countlines_arm64.s
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@ -3,11 +3,11 @@
#include "textflag.h"
TEXT ·countNewlinesASM(SB),NOSPLIT,$0
MOVQ src+0(FP), R1
MOVQ len+8(FP), R2
MOVD src+0(FP), R1
MOVD len+8(FP), R2
MOVD ZR, R0
VMOVI $0x0A V23.B16
VMOVI $0x0A, V23.B16
CMP $16, R2
BLT tail
@ -65,7 +65,8 @@ tail:
next:
SUB $1, R2
JNZ tail
CMP ZR, R2
BNE tail
ret: