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40234401 DH |
1 | /* __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 |