2.9BSD/usr/src/lib/c/gen/fakfp.s

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/*	@(#)fakfp.s	2.1	SCCS id keyword	*/
/ fakefp -- fake floating point simulator

.globl	fptrap
signal = 48.
rti = 2

fptrap:
	sub	$2,(sp)
	mov	r0,-(sp)
	sys	signal; 4; 0
	mov	(sp)+,r0
	rti