| /* |
| * This file is part of the coreboot project. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; version 2 of the License. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| */ |
| |
| /* |
| * Store the initial timestamp for booting in mmx registers. This works |
| * because the bootblock isn't being compiled with MMX support so mm1 and |
| * mm2 will be preserved into romstage. |
| */ |
| .code32 |
| |
| .global stash_timestamp |
| stash_timestamp: |
| |
| /* Save the BIST value */ |
| movl %eax, %ebx |
| |
| finit |
| rdtsc |
| movd %ebx, %mm0 |
| movd %eax, %mm1 |
| movd %edx, %mm2 |
| |
| /* Restore the BIST value to %eax */ |
| movl %ebx, %eax |
