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David Howells40234402006-01-08 01:01:19 -08001/* __ucmpdi2.S: 64-bit unsigned compare
2 *
3 * Copyright (C) 2006 Red Hat, Inc. All Rights Reserved.
4 * Written by David Howells (dhowells@redhat.com)
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version
9 * 2 of the License, or (at your option) any later version.
10 */
11
12
13 .text
14 .p2align 4
15
16###############################################################################
17#
18# int __ucmpdi2(unsigned long long a [GR8:GR9],
19# unsigned long long b [GR10:GR11])
20#
21# - returns 0, 1, or 2 as a <, =, > b respectively.
22#
23###############################################################################
24 .globl __ucmpdi2
25 .type __ucmpdi2,@function
26__ucmpdi2:
27 or.p gr8,gr0,gr4
28 subcc gr8,gr10,gr0,icc0
29 setlos.p #0,gr8
30 bclr icc0,#2 ; a.msw < b.msw
31
32 setlos.p #2,gr8
33 bhilr icc0,#0 ; a.msw > b.msw
34
35 subcc.p gr9,gr11,gr0,icc1
36 setlos #0,gr8
37 setlos.p #2,gr9
38 setlos #1,gr7
39 cknc icc1,cc6
40 cor.p gr9,gr0,gr8, cc6,#1
41 cckls icc1,cc4, cc6,#1
42 andcr cc6,cc4,cc4
43 cor gr7,gr0,gr8, cc4,#1
44 bralr
45 .size __ucmpdi2, .-__ucmpdi2