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TEXT memcpy(SB), $-4
TEXT memmove(SB), $-4
MOV from+8(FP), R1
MOVWU n+16(FP), R2
CMP R0, R1
BEQ _done
BLT _backward
_forward:
MOV R0, R7
ADD R0, R2, R3
BIC $15, R2, R4
CBZ R4, _floop1
ADD R0, R4, R4
_floop16:
MOVP (R1)16!, R5, R6
MOVP R5, R6, (R7)16!
CMP R4, R7
BNE _floop16
_floop1:
CMP R3, R7
BEQ _done
MOVBU (R1)1!, R5
MOVBU R5, (R7)1!
B _floop1
_done:
RETURN
_backward:
ADD R2, R1, R1
ADD R2, R0, R3
BIC $15, R2, R4
CBZ R4, _bloop1
SUB R4, R3, R4
_bloop16:
MOVP -16(R1)!, R5, R6
MOVP R5, R6, -16(R3)!
CMP R4, R3
BNE _bloop16
_bloop1:
CMP R0, R3
BEQ _done
MOVBU -1(R1)!, R5
MOVBU R5, -1(R3)!
B _bloop1
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