projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| e1f414b6 | 1 | #------------------------------------------------------------------------------\r |
| 2 | #\r | |
| bb817c56 HT |
3 | # Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>\r |
| 4 | # This program and the accompanying materials\r | |
| e1f414b6 | 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 | |
| 35a17154 | 7 | # http://opensource.org/licenses/bsd-license.php.\r |
| e1f414b6 | 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 | |
| 1f86b07d | 14 | # EnablePaging32.S\r |
| e1f414b6 | 15 | #\r |
| 16 | # Abstract:\r | |
| 17 | #\r | |
| 18 | # InternalX86EnablePaging32 function\r | |
| 19 | #\r | |
| 20 | # Notes:\r | |
| 21 | #\r | |
| 22 | #------------------------------------------------------------------------------\r | |
| 23 | \r | |
| 132f41f0 | 24 | ASM_GLOBAL ASM_PFX(InternalX86EnablePaging32)\r |
| e1f414b6 | 25 | \r |
| 26 | #------------------------------------------------------------------------------\r | |
| 27 | # VOID\r | |
| 28 | # EFIAPI\r | |
| 29 | # InternalX86EnablePaging32 (\r | |
| 30 | # IN SWITCH_STACK_ENTRY_POINT EntryPoint,\r | |
| 31 | # IN VOID *Context1, OPTIONAL\r | |
| 32 | # IN VOID *Context2, OPTIONAL\r | |
| 33 | # IN VOID *NewStack\r | |
| 34 | # );\r | |
| 35 | #------------------------------------------------------------------------------\r | |
| 36 | ASM_PFX(InternalX86EnablePaging32):\r | |
| 37 | movl 4(%esp), %ebx\r | |
| 38 | movl 8(%esp), %ecx\r | |
| 39 | movl 12(%esp), %edx\r | |
| 40 | pushfl\r | |
| 57246fe0 | 41 | pop %edi # save flags in edi\r |
| e1f414b6 | 42 | cli\r |
| 43 | movl %cr0, %eax\r | |
| 44 | btsl $31, %eax\r | |
| 45 | movl 16(%esp), %esp\r | |
| 46 | movl %eax, %cr0\r | |
| 47 | push %edi\r | |
| 57246fe0 | 48 | popfl # restore flags\r |
| e1f414b6 | 49 | push %edx\r |
| 50 | push %ecx\r | |
| 51 | call *%ebx\r | |
| 52 | jmp .\r |