git.joshuawise.com / netwatch.git / blame
| Commit | Line | Data |
|---|---|---|
| db9fad13 JAW |
1 | /* cpuid.S |
| 2 | * CPUID wrapper | |
| 3 | * NetWatch system management mode administration console | |
| 4 | * | |
| 5 | * Copyright 2009, Google Inc. | |
| 6 | * All rights reserved. | |
| 7 | * | |
| 8 | * Redistribution and use in source and binary forms, with or without | |
| 9 | * modification, are permitted provided that the following conditions are | |
| 10 | * met: | |
| 11 | * | |
| 12 | * * Redistributions of source code must retain the above copyright | |
| 13 | * notice, this list of conditions and the following disclaimer. | |
| 14 | * * Redistributions in binary form must reproduce the above | |
| 15 | * copyright notice, this list of conditions and the following disclaimer | |
| 16 | * in the documentation and/or other materials provided with the | |
| 17 | * distribution. | |
| 18 | * * Neither the name of Google Inc. nor the names of its | |
| 19 | * contributors may be used to endorse or promote products derived from | |
| 20 | * this software without specific prior written permission. | |
| 21 | * | |
| 22 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 23 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 24 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 25 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
| 26 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 27 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 28 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 29 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 30 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 31 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 32 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 33 | */ | |
| 34 | ||
| 35 | .global cpuid | |
| 36 | cpuid: | |
| 37 | // Save registers | |
| 38 | push %ebx | |
| 39 | push %edi | |
| 40 | ||
| 41 | // Load arguments from stack | |
| 42 | mov 12(%esp), %eax | |
| 43 | mov 16(%esp), %edi | |
| 44 | ||
| 45 | cpuid | |
| 46 | ||
| 47 | // Save results into output pointer | |
| 48 | mov %eax, (%edi) | |
| 49 | mov %ebx, 4(%edi) | |
| 50 | mov %ecx, 8(%edi) | |
| 51 | mov %edx, 12(%edi) | |
| 52 | ||
| 53 | // All done! | |
| 54 | pop %edi | |
| 55 | pop %ebx | |
| 56 | ret |