| Jacob Garber | 07201d7 | 2020-09-08 12:25:44 -0600 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
| 2 | |
| 3 | /* It is derived from the x86info project, which is GPLv2-licensed. */ |
| Jordan Crouse | 7249f79 | 2008-03-20 00:11:05 +0000 | [diff] [blame] | 4 | |
| 5 | /* calling syntax: docpuid(idx,eax,ebx,ecx,edx) */ |
| Stefan Reinauer | 14e2277 | 2010-04-27 06:56:47 +0000 | [diff] [blame] | 6 | |
| Jordan Crouse | 7249f79 | 2008-03-20 00:11:05 +0000 | [diff] [blame] | 7 | .align 4 |
| 8 | .text |
| 9 | |
| 10 | .global docpuid |
| 11 | .type docpuid,@function |
| 12 | |
| 13 | docpuid: |
| 14 | pushl %ebp |
| 15 | movl %esp, %ebp |
| 16 | pushl %edi |
| 17 | pushl %ebx |
| 18 | pushl %ecx |
| 19 | pushl %edx |
| 20 | movl 8(%ebp),%eax |
| 21 | cpuid |
| 22 | movl 12(%ebp),%edi |
| 23 | test %edi,%edi |
| 24 | jz L1 |
| 25 | movl %eax, (%edi) |
| 26 | |
| 27 | L1: movl 16(%ebp),%edi |
| 28 | test %edi,%edi |
| 29 | jz L2 |
| 30 | movl %ebx,(%edi) |
| 31 | |
| 32 | L2: movl 20(%ebp),%edi |
| 33 | test %edi,%edi |
| 34 | jz L3 |
| 35 | movl %ecx,(%edi) |
| 36 | |
| 37 | L3: movl 24(%ebp), %edi |
| 38 | test %edi,%edi |
| 39 | jz L4 |
| 40 | movl %edx,(%edi) |
| 41 | |
| 42 | L4: popl %edx |
| 43 | popl %ecx |
| 44 | popl %ebx |
| 45 | popl %edi |
| 46 | movl %ebp,%esp |
| 47 | popl %ebp |
| 48 | ret |
| 49 | |
| 50 | .section .note.GNU-stack,"", @progbits |