1 ;------------------------------------------------------------------------------ 2 ; 3 ; Copyright (c) 2014, Intel Corporation. All rights reserved.<BR> 4 ; This program and the accompanying materials 5 ; are licensed and made available under the terms and conditions of the BSD License 6 ; which accompanies this distribution. The full text of the license may be found at 7 ; http://opensource.org/licenses/bsd-license.php. 8 ; 9 ; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 10 ; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 11 ; 12 ; Module Name: 13 ; 14 ; ResetVec.asm 15 ; 16 ; Abstract: 17 ; 18 ; Reset Vector Data structure 19 ; This structure is located at 0xFFFFFFC0 20 ; 21 ;------------------------------------------------------------------------------ 22 23 .model tiny 24 .686p 25 .stack 0h 26 .code 27 28 ; 29 ; The layout of this file is fixed. The build tool makes assumption of the layout. 30 ; 31 32 ORG 0h 33 ; 34 ; Reserved 35 ; 36 ReservedData DD 0eeeeeeeeh, 0eeeeeeeeh 37 38 ORG 10h 39 ; 40 ; This is located at 0xFFFFFFD0h 41 ; 42 mov di, "AP" 43 jmp ApStartup 44 45 ORG 20h 46 ; 47 ; Pointer to the entry point of the PEI core 48 ; It is located at 0xFFFFFFE0, and is fixed up by some build tool 49 ; So if the value 8..1 appears in the final FD image, tool failure occurs. 50 ; 51 PeiCoreEntryPoint DD 87654321h 52 53 ; 54 ; This is the handler for all kinds of exceptions. Since it's for debugging 55 ; purpose only, nothing except a dead loop would be done here. Developers could 56 ; analyze the cause of the exception if a debugger had been attached. 57 ; 58 InterruptHandler PROC 59 jmp $ 60 iret 61 InterruptHandler ENDP 62 63 ORG 30h 64 ; 65 ; For IA32, the reset vector must be at 0xFFFFFFF0, i.e., 4G-16 byte 66 ; Execution starts here upon power-on/platform-reset. 67 ; 68 ResetHandler: 69 nop 70 nop 71 ApStartup: 72 ; 73 ; Jmp Rel16 instruction 74 ; Use machine code directly in case of the assembler optimization 75 ; SEC entry point relative address will be fixed up by some build tool. 76 ; 77 ; Typically, SEC entry point is the function _ModuleEntryPoint() defined in 78 ; SecEntry.asm 79 ; 80 DB 0e9h 81 DW -3 82 83 84 ORG 38h 85 ; 86 ; Ap reset vector segment address is at 0xFFFFFFF8 87 ; This will be fixed up by some build tool, 88 ; so if the value 1..8 appears in the final FD image, 89 ; tool failure occurs 90 ; 91 ApSegAddress dd 12345678h 92 93 ORG 3ch 94 ; 95 ; BFV Base is at 0xFFFFFFFC 96 ; This will be fixed up by some build tool, 97 ; so if the value 1..8 appears in the final FD image, 98 ; tool failure occurs. 99 ; 100 BfvBase DD 12345678h 101 102 ; 103 ; Nothing can go here, otherwise the layout of this file would change. 104 ; 105 106 END 107
