File: divmod_amd64.s

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golang-github-gorgonia-tensor 0.9.24-3
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// +build !noasm

#include "textflag.h"

TEXT ·divmod(SB),NOSPLIT,$0
	MOVQ	a+0(FP), SI
	MOVQ	b+8(FP), CX
	MOVQ	SI, AX
	CMPQ	CX, $-1
	JEQ	$1, denomIsOne 	// if denominator is 1, then jump to end

	CQO
	IDIVQ	CX
	MOVQ	AX, q+16(FP)
	MOVQ	DX, r+24(FP)
bye:
	RET
denomIsOne:
	NEGQ	AX
	MOVQ	AX, q+16(FP)
	MOVQ	$0, r+24(FP)
	JMP	bye