/usr/web/sources/contrib/steve/root/sys/src/c++/lib/task/68020/label.s

Plan 9 from Bell Labs’s /usr/web/sources/contrib/steve/root/sys/src/c++/lib/task/68020/label.s



TEXT	setlabel(SB), $0

	MOVL	p+0(FP), A0
	MOVL	A7, (A0)+		/* stack pointer */
	MOVL	(A7), (A0)+		/* pc of caller */
	CLRL	R0			/* ret 0 => not returning */
	RTS

TEXT	gotolabel(SB), $0

	MOVL	v+0(FP), R0
	MOVL	p+4(FP), A0
	MOVL	(A0)+, A7		/* stack pointer */
	MOVL	(A0)+, (A7)		/* pc; stuff into stack frame */
	RTS

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