1 TITLE CpuAsm.asm: 2;------------------------------------------------------------------------------ 3;* 4;* Copyright (c) 2006 - 2013, Intel Corporation. All rights reserved.<BR> 5;* This program and the accompanying materials 6;* are licensed and made available under the terms and conditions of the BSD License 7;* which accompanies this distribution. The full text of the license may be found at 8;* http://opensource.org/licenses/bsd-license.php 9;* 10;* THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 11;* WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 12;* 13;* CpuAsm.asm 14;* 15;* Abstract: 16;* 17;------------------------------------------------------------------------------ 18 19 .686 20 .model flat,C 21 .code 22 23;------------------------------------------------------------------------------ 24; VOID 25; SetCodeSelector ( 26; UINT16 Selector 27; ); 28;------------------------------------------------------------------------------ 29SetCodeSelector PROC PUBLIC 30 mov ecx, [esp+4] 31 sub esp, 0x10 32 lea eax, setCodeSelectorLongJump 33 mov [esp], eax 34 mov [esp+4], cx 35 jmp fword ptr [esp] 36setCodeSelectorLongJump: 37 add esp, 0x10 38 ret 39SetCodeSelector ENDP 40 41;------------------------------------------------------------------------------ 42; VOID 43; SetDataSelectors ( 44; UINT16 Selector 45; ); 46;------------------------------------------------------------------------------ 47SetDataSelectors PROC PUBLIC 48 mov ecx, [esp+4] 49 mov ss, cx 50 mov ds, cx 51 mov es, cx 52 mov fs, cx 53 mov gs, cx 54 ret 55SetDataSelectors ENDP 56 57 58END 59