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libc: fix return value for arm64 memset() and memove()

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This commit is contained in:
cinap_lenrek 2019-05-09 12:40:03 +02:00
parent 57e0786595
commit a375c9ac38
4 changed files with 20 additions and 16 deletions
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9
sys/src/ape/lib/ap/arm64/memmove.s
View file

@ -8,6 +8,7 @@ TEXT memmove(SB), $-4
BLT _backward
_forward:
MOV R0, R7
ADD R0, R2, R3
BIC $15, R2, R4
CBZ R4, _floop1
@ -15,15 +16,15 @@ _forward:
_floop16:
MOVP (R1)16!, R5, R6
MOVP R5, R6, (R0)16!
CMP R4, R0
MOVP R5, R6, (R7)16!
CMP R4, R7
BNE _floop16
_floop1:
CMP R3, R0
CMP R3, R7
BEQ _done
MOVBU (R1)1!, R5
MOVBU R5, (R0)1!
MOVBU R5, (R7)1!
B _floop1
_done:

9
sys/src/ape/lib/ap/arm64/memset.s
View file

@ -2,6 +2,7 @@ TEXT memset(SB), $-4
MOVBU c+8(FP), R1
MOVWU n+16(FP), R2
MOV R0, R5
ADD R0, R2, R3
BIC $15, R2, R4
CBZ R4, _loop1
@ -12,15 +13,15 @@ TEXT memset(SB), $-4
ORR R1<<32, R1
_loop16:
MOVP R1, R1, (R0)16!
CMP R4, R0
MOVP R1, R1, (R5)16!
CMP R4, R5
BNE _loop16
_loop1:
CMP R3, R0
CMP R3, R5
BEQ _done
MOVBU R1, (R0)1!
MOVBU R1, (R5)1!
B _loop1
_done:

9
sys/src/libc/arm64/memmove.s
View file

@ -8,6 +8,7 @@ TEXT memmove(SB), $-4
BLT _backward
_forward:
MOV R0, R7
ADD R0, R2, R3
BIC $15, R2, R4
CBZ R4, _floop1
@ -15,15 +16,15 @@ _forward:
_floop16:
MOVP (R1)16!, R5, R6
MOVP R5, R6, (R0)16!
CMP R4, R0
MOVP R5, R6, (R7)16!
CMP R4, R7
BNE _floop16
_floop1:
CMP R3, R0
CMP R3, R7
BEQ _done
MOVBU (R1)1!, R5
MOVBU R5, (R0)1!
MOVBU R5, (R7)1!
B _floop1
_done:

9
sys/src/libc/arm64/memset.s
View file

@ -2,6 +2,7 @@ TEXT memset(SB), $-4
MOVBU c+8(FP), R1
MOVWU n+16(FP), R2
MOV R0, R5
ADD R0, R2, R3
BIC $15, R2, R4
CBZ R4, _loop1
@ -12,15 +13,15 @@ TEXT memset(SB), $-4
ORR R1<<32, R1
_loop16:
MOVP R1, R1, (R0)16!
CMP R4, R0
MOVP R1, R1, (R5)16!
CMP R4, R5
BNE _loop16
_loop1:
CMP R3, R0
CMP R3, R5
BEQ _done
MOVBU R1, (R0)1!
MOVBU R1, (R5)1!
B _loop1
_done: