File:  [CSRG BSD Unix] / 43BSDTahoe / lib / libc / tahoe / fpe / cmpf.s
Revision 1.1.1.1 (vendor branch): download - view: text, annotated - select for diffs
Tue Apr 24 16:12:57 2018 UTC (8 years, 1 month ago) by root
Branches: MAIN, BSD
CVS tags: HEAD, BSD43tahoe
BSD 4.3tahoe

#ifdef LIBC_SCCS
	.asciz	"@(#)cmpf.s	1.1 (Berkeley/CCI) 7/2/86"
#endif LIBC_SCCS

/*
 * cmpf(f1, f2)
 *	float f1, f2;
 * return -1, 0, 1 as f1 <, ==, > f2
 */
#include "DEFS.h"

XENTRY(cmpf, 0)
	cmpl	4(fp),12(fp)
	jneq	1f
	clrl	r0
	ret
1:
	movl	4(fp),r0
	jgeq	1f
	xorl2	$0x80000000,r0
	mnegl	r0,r0
1:
	movl	12(fp),r1
	jgeq	1f
	xorl2	$0x80000000,r1
	mnegl	r1,r1
1:
	cmpl	r0,r1
	jleq	1f
	movl	$1,r0
	ret
1:
	mnegl	$1,r0
	ret

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