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.nasmb 15 ; 16 ; Abstract: 17 ; 18 ; Reset Vector Data structure 19 ; This structure is located at 0xFFFFFFC0 20 ; 21 ;------------------------------------------------------------------------------ 22 23 ; .stack 0x0 24 ; SECTION .text 25 USE16 26 27 ; 28 ; The layout of this file is fixed. The build tool makes assumption of the layout. 29 ; 30 31 ORG 0h 32 ; 33 ; Reserved 34 ; 35 ReservedData: DD 0eeeeeeeeh, 0eeeeeeeeh 36 37 TIMES 0x10-($-$$) DB 0 38 ; 39 ; This is located at 0xFFFFFFD0h 40 ; 41 mov di, "PA" 42 jmp ApStartup 43 44 TIMES 0x20-($-$$) DB 0 45 ; 46 ; Pointer to the entry point of the PEI core 47 ; It is located at 0xFFFFFFE0, and is fixed up by some build tool 48 ; So if the value 8..1 appears in the final FD image, tool failure occurs. 49 ; 50 PeiCoreEntryPoint: DD 87654321h 51 52 ; 53 ; This is the handler for all kinds of exceptions. Since it's for debugging 54 ; purpose only, nothing except a dead loop would be done here. Developers could 55 ; analyze the cause of the exception if a debugger had been attached. 56 ; 57 global ASM_PFX(InterruptHandler) 58 ASM_PFX(InterruptHandler): 59 jmp $ 60 iret 61 62 TIMES 0x30-($-$$) DB 0 63 ; 64 ; For IA32, the reset vector must be at 0xFFFFFFF0, i.e., 4G-16 byte 65 ; Execution starts here upon power-on/platform-reset. 66 ; 67 ResetHandler: 68 nop 69 nop 70 ApStartup: 71 ; 72 ; Jmp Rel16 instruction 73 ; Use machine code directly in case of the assembler optimization 74 ; SEC entry point relative address will be fixed up by some build tool. 75 ; 76 ; Typically, SEC entry point is the function _ModuleEntryPoint() defined in 77 ; SecEntry.asm 78 ; 79 DB 0e9h 80 DW -3 81 82 83 TIMES 0x38-($-$$) DB 0 84 ; 85 ; Ap reset vector segment address is at 0xFFFFFFF8 86 ; This will be fixed up by some build tool, 87 ; so if the value 1..8 appears in the final FD image, 88 ; tool failure occurs 89 ; 90 ApSegAddress: dd 12345678h 91 92 TIMES 0x3c-($-$$) DB 0 93 ; 94 ; BFV Base is at 0xFFFFFFFC 95 ; This will be fixed up by some build tool, 96 ; so if the value 1..8 appears in the final FD image, 97 ; tool failure occurs. 98 ; 99 BfvBase: DD 12345678h 100 101 ; 102 ; Nothing can go here, otherwise the layout of this file would change. 103 ; 104
