| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* __muldi3.S: 64-bit multiply |
| 2 | * |
| 3 | * Copyright (C) 2003 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 | .text |
| 13 | .p2align 4 |
| 14 | |
| 15 | ############################################################################### |
| 16 | # |
| 17 | # unsigned long long __muldi3(unsigned long long x [GR8:GR9], |
| 18 | # unsigned long long y [GR10:GR11]) |
| 19 | # |
| 20 | ############################################################################### |
| 21 | .globl __muldi3, __mulll, __umulll |
| 22 | .type __muldi3,@function |
| 23 | __muldi3: |
| 24 | __mulll: |
| 25 | __umulll: |
| 26 | umul gr8,gr11,gr4 ; GR4:GR5 = x.MSW * y.LSW |
| 27 | umul gr9,gr10,gr6 ; GR6:GR7 = x.LSW * y.MSW |
| 28 | umul.p gr9,gr11,gr8 ; GR8:GR9 = x.LSW * y.LSW |
| 29 | add gr5,gr7,gr5 |
| 30 | add.p gr8,gr5,gr8 ; GR8 += GR5 + GR7 |
| 31 | bralr |
| 32 | .size __muldi3, .-__muldi3 |