projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| b341712e | 1 | #------------------------------------------------------------------------------\r |
| 2 | #\r | |
| 4ea9375a HT |
3 | # Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>\r |
| 4 | # This program and the accompanying materials\r | |
| b341712e | 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 | # WriteIdt.Asm\r | |
| 15 | #\r | |
| 16 | # Abstract:\r | |
| 17 | #\r | |
| 18 | # SetIdtBase function\r | |
| 19 | #\r | |
| 20 | # Notes:\r | |
| 21 | #\r | |
| 22 | #include "EfiBind.h"\r | |
| 23 | #------------------------------------------------------------------------------\r | |
| 24 | \r | |
| 25 | .586: \r | |
| 26 | #.MODEL flat,C\r | |
| 27 | .code: \r | |
| 28 | #------------------------------------------------------------------------------\r | |
| 29 | \r | |
| 30 | .globl ASM_PFX(SetIdtBase)\r | |
| 31 | \r | |
| 32 | # void\r | |
| 33 | # SetIdtBase (\r | |
| 34 | # UINT32 IdtBase,\r | |
| 35 | # UINT16 IdtLimit \r | |
| 36 | # )\r | |
| 37 | #\r | |
| 38 | # Abstract: Set IDTR with the given physical address\r | |
| 39 | #\r | |
| 40 | ASM_PFX(SetIdtBase):\r | |
| 41 | push %ebp\r | |
| 42 | mov %esp,%ebp\r | |
| 43 | add $0xfffffff8,%esp\r | |
| 44 | mov 0x8(%ebp),%eax\r | |
| 45 | mov 0xc(%ebp),%cx\r | |
| 46 | mov %eax,0xfffffffc(%ebp)\r | |
| 47 | mov %cx,0xfffffffa(%ebp)\r | |
| 48 | lidtl 0xfffffffa(%ebp)\r | |
| 49 | leave \r | |
| 50 | ret \r |