| #------------------------------------------------------------------------------ | |
| # | |
| # Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR> | |
| # This program and the accompanying materials | |
| # are licensed and made available under the terms and conditions of the BSD License | |
| # which accompanies this distribution. The full text of the license may be found at | |
| # http://opensource.org/licenses/bsd-license.php. | |
| # | |
| # THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, | |
| # WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. | |
| # | |
| # Module Name: | |
| # | |
| # CpuId.S | |
| # | |
| # Abstract: | |
| # | |
| # AsmCpuid function | |
| # | |
| # Notes: | |
| # | |
| #------------------------------------------------------------------------------ | |
| ASM_GLOBAL ASM_PFX(AsmCpuid) | |
| #------------------------------------------------------------------------------ | |
| # VOID | |
| # EFIAPI | |
| # AsmCpuid ( | |
| # IN UINT32 RegisterInEax, | |
| # OUT UINT32 *RegisterOutEax OPTIONAL, | |
| # OUT UINT32 *RegisterOutEbx OPTIONAL, | |
| # OUT UINT32 *RegisterOutEcx OPTIONAL, | |
| # OUT UINT32 *RegisterOutEdx OPTIONAL | |
| # ) | |
| #------------------------------------------------------------------------------ | |
| ASM_PFX(AsmCpuid): | |
| push %ebx | |
| push %ebp | |
| movl %esp, %ebp | |
| movl 12(%ebp), %eax | |
| cpuid | |
| push %ecx | |
| movl 16(%ebp), %ecx | |
| jecxz L1 | |
| movl %eax, (%ecx) | |
| L1: | |
| movl 20(%ebp), %ecx | |
| jecxz L2 | |
| movl %ebx, (%ecx) | |
| L2: | |
| movl 24(%ebp), %ecx | |
| jecxz L3 | |
| popl (%ecx) | |
| L3: | |
| movl 28(%ebp), %ecx | |
| jecxz L4 | |
| movl %edx, (%ecx) | |
| L4: | |
| movl 12(%ebp), %eax | |
| leave | |
| pop %ebx | |
| ret |