projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| 3f8f7fa5 | 1 | #------------------------------------------------------------------------------\r |
| 2 | #\r | |
| 2c7e5c2f HT |
3 | # Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>\r |
| 4 | # This program and the accompanying materials\r | |
| 3f8f7fa5 | 5 | # are licensed and made available under the terms and conditions of the BSD License\r |
| 6 | # which accompanies this distribution. The full text of the license may be found at\r | |
| 7 | # http://opensource.org/licenses/bsd-license.php\r | |
| 8 | #\r | |
| 9 | # THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
| 10 | # WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
| 11 | #\r | |
| 12 | # Module Name:\r | |
| 13 | #\r | |
| 14 | # CpuId.Asm\r | |
| 15 | #\r | |
| 16 | # Abstract:\r | |
| 17 | #\r | |
| 18 | # AsmCpuid function\r | |
| 19 | #\r | |
| 20 | # Notes:\r | |
| 21 | #\r | |
| 22 | #------------------------------------------------------------------------------\r | |
| 23 | \r | |
| 8ad319e5 | 24 | #include <EdkIIGlueBase.h>\r |
| 25 | \r | |
| 3f8f7fa5 | 26 | .globl ASM_PFX(AsmCpuid)\r |
| 27 | \r | |
| 28 | #------------------------------------------------------------------------------\r | |
| 29 | # VOID\r | |
| 30 | # EFIAPI\r | |
| 31 | # AsmCpuid (\r | |
| 32 | # IN UINT32 RegisterInEax,\r | |
| 33 | # OUT UINT32 *RegisterOutEax OPTIONAL,\r | |
| 34 | # OUT UINT32 *RegisterOutEbx OPTIONAL,\r | |
| 35 | # OUT UINT32 *RegisterOutEcx OPTIONAL,\r | |
| 36 | # OUT UINT32 *RegisterOutEdx OPTIONAL\r | |
| 37 | # )\r | |
| 38 | #------------------------------------------------------------------------------\r | |
| 39 | ASM_PFX(AsmCpuid):\r | |
| 40 | push %ebx\r | |
| 41 | push %ebp\r | |
| 42 | movl %esp, %ebp\r | |
| 43 | movl 12(%ebp), %eax\r | |
| 44 | cpuid\r | |
| 45 | push %ecx\r | |
| 46 | movl 16(%ebp), %ecx\r | |
| 47 | jecxz L1\r | |
| 48 | movl %eax, (%ecx)\r | |
| 49 | L1:\r | |
| 50 | movl 20(%ebp), %ecx\r | |
| 51 | jecxz L2\r | |
| 52 | movl %ebx, (%ecx)\r | |
| 53 | L2:\r | |
| 54 | movl 24(%ebp), %ecx\r | |
| 55 | jecxz L3\r | |
| 56 | popl (%ecx)\r | |
| 57 | L3:\r | |
| 58 | movl 28(%ebp), %ecx\r | |
| 59 | jecxz L4\r | |
| 60 | movl %edx, (%ecx)\r | |
| 61 | L4:\r | |
| 62 | movl 12(%ebp), %eax\r | |
| 63 | leave\r | |
| 64 | pop %ebx\r | |
| 65 | ret\r |