projects / mirror_ubuntu-artful-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 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 |