[3] | 1 | ; File name : Main.asm |
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| 2 | ; Project name : XTIDE Universal BIOS |
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| 3 | ; Created date : 28.7.2007 |
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[26] | 4 | ; Last update : 26.7.2010 |
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[3] | 5 | ; Author : Tomi Tilli |
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| 6 | ; Description : Main file for BIOS. This is the only file that needs |
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| 7 | ; to be compiled since other files are included to this |
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| 8 | ; file (so no linker needed, Nasm does it all). |
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| 9 | ; |
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| 10 | ; Tomi Tilli |
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| 11 | ; aitotat@gmail.com |
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| 12 | |
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| 13 | ORG 000h ; Code start offset 0000h |
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| 14 | |
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| 15 | ; Included .inc files |
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| 16 | %include "emulate.inc" ; Must be included first! |
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| 17 | %include "BiosData.inc" ; For BIOS Data area equates |
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| 18 | %include "Interrupts.inc" ; For interrupt equates |
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| 19 | %include "ATA_ID.inc" ; For ATA Drive Information structs |
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| 20 | %include "IdeRegisters.inc" ; For ATA Registers, flags and commands |
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| 21 | %include "Int13h.inc" ; Equates for INT 13h functions |
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| 22 | %include "CustomDPT.inc" ; For Disk Parameter Table |
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| 23 | %include "CompatibleDPT.inc" ; For standard Disk Parameter Tables |
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| 24 | %include "RomVars.inc" ; For ROMVARS and IDEVARS structs |
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| 25 | %include "RamVars.inc" ; For RAMVARS struct |
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| 26 | %include "BootVars.inc" ; For BOOTVARS and BOOTNFO structs |
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| 27 | %include "BootMenu.inc" ; For Boot Menu |
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| 28 | %include "IDE_8bit.inc" ; For IDE 8-bit data port macros |
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| 29 | |
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| 30 | |
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| 31 | ; Section containing code |
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| 32 | SECTION .text |
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| 33 | |
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| 34 | ; ROM variables (must start at offset 0) |
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| 35 | CNT_ROM_BLOCKS EQU 16 ; 16 * 512B = 8kB BIOS |
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| 36 | istruc ROMVARS |
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| 37 | at ROMVARS.wRomSign, dw 0AA55h ; PC ROM signature |
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| 38 | at ROMVARS.bRomSize, db CNT_ROM_BLOCKS ; ROM size in 512B blocks |
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| 39 | at ROMVARS.rgbJump, jmp Initialize_FromMainBiosRomSearch |
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[35] | 40 | at ROMVARS.rgbDate, db "08/24/10" ; Build data (mm/dd/yy) |
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[3] | 41 | at ROMVARS.rgbSign, db "XTIDE110" ; Signature for flash program |
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| 42 | at ROMVARS.szTitle |
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| 43 | db "-=XTIDE Universal BIOS" |
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| 44 | %ifdef USE_AT |
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| 45 | db " (AT)=-",STOP |
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| 46 | %elifdef USE_186 |
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| 47 | db " (XT+)=-",STOP |
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| 48 | %else |
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| 49 | db " (XT)=-",STOP |
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| 50 | %endif |
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[35] | 51 | at ROMVARS.szVersion, db "v1.1.4 (08/24/10)",STOP |
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[3] | 52 | |
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| 53 | ;---------------------------; |
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| 54 | ; AT Build default settings ; |
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| 55 | ;---------------------------; |
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| 56 | %ifdef USE_AT |
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| 57 | at ROMVARS.wFlags, dw FLG_ROMVARS_FULLMODE | FLG_ROMVARS_DRVXLAT | FLG_ROMVARS_DRVNFO | FLG_ROMVARS_MAXSIZE |
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| 58 | at ROMVARS.bIdeCnt, db 3 ; Number of supported controllers |
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| 59 | at ROMVARS.bBootDrv, db 80h ; Boot Menu default drive |
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| 60 | at ROMVARS.bBootMnuH, db 20 ; Boot Menu maximum height |
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| 61 | at ROMVARS.bBootDelay, db 30 ; Boot Menu selection delay (secs) |
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| 62 | at ROMVARS.bBootLdrType, db BOOTLOADER_TYPE_MENU ; Boot loader type |
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| 63 | at ROMVARS.bMinFddCnt, db 0 ; Do not force minimum number of floppy drives |
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| 64 | at ROMVARS.bStealSize, db 1 ; Steal 1kB from base memory |
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| 65 | |
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| 66 | at ROMVARS.ideVars0+IDEVARS.wPort, dw 1F0h ; Controller Command Block base port |
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| 67 | at ROMVARS.ideVars0+IDEVARS.wPortCtrl, dw 3F0h ; Controller Control Block base port |
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| 68 | at ROMVARS.ideVars0+IDEVARS.bBusType, db BUS_TYPE_16 ; Bus type |
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| 69 | at ROMVARS.ideVars0+IDEVARS.bIRQ, db 14 ; IRQ |
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| 70 | at ROMVARS.ideVars0+IDEVARS.drvParamsMaster+DRVPARAMS.wFlags, db FLG_DRVPARAMS_BLOCKMODE |
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| 71 | at ROMVARS.ideVars0+IDEVARS.drvParamsSlave+DRVPARAMS.wFlags, db FLG_DRVPARAMS_BLOCKMODE |
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| 72 | |
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| 73 | at ROMVARS.ideVars1+IDEVARS.wPort, dw 170h ; Controller Command Block base port |
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| 74 | at ROMVARS.ideVars1+IDEVARS.wPortCtrl, dw 370h ; Controller Control Block base port |
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| 75 | at ROMVARS.ideVars1+IDEVARS.bBusType, db BUS_TYPE_16 ; Bus type |
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| 76 | at ROMVARS.ideVars1+IDEVARS.bIRQ, db 15 ; IRQ |
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| 77 | at ROMVARS.ideVars1+IDEVARS.drvParamsMaster+DRVPARAMS.wFlags, db FLG_DRVPARAMS_BLOCKMODE |
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| 78 | at ROMVARS.ideVars1+IDEVARS.drvParamsSlave+DRVPARAMS.wFlags, db FLG_DRVPARAMS_BLOCKMODE |
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| 79 | |
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| 80 | at ROMVARS.ideVars2+IDEVARS.wPort, dw 300h ; Controller Command Block base port |
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| 81 | at ROMVARS.ideVars2+IDEVARS.wPortCtrl, dw 308h ; Controller Control Block base port |
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| 82 | at ROMVARS.ideVars2+IDEVARS.bBusType, db BUS_TYPE_8_DUAL ; Bus type |
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| 83 | at ROMVARS.ideVars2+IDEVARS.bIRQ, db 0 ; IRQ |
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| 84 | at ROMVARS.ideVars2+IDEVARS.drvParamsMaster+DRVPARAMS.wFlags, db FLG_DRVPARAMS_BLOCKMODE |
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| 85 | at ROMVARS.ideVars2+IDEVARS.drvParamsSlave+DRVPARAMS.wFlags, db FLG_DRVPARAMS_BLOCKMODE |
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| 86 | %else |
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| 87 | ;-----------------------------------; |
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| 88 | ; XT and XT+ Build default settings ; |
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| 89 | ;-----------------------------------; |
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| 90 | at ROMVARS.wFlags, dw FLG_ROMVARS_LATE | FLG_ROMVARS_DRVXLAT | FLG_ROMVARS_ROMBOOT | FLG_ROMVARS_DRVNFO | FLG_ROMVARS_MAXSIZE |
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| 91 | at ROMVARS.bIdeCnt, db 1 ; Number of supported controllers |
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| 92 | at ROMVARS.bBootDrv, db 80h ; Boot Menu default drive |
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| 93 | at ROMVARS.bBootMnuH, db 20 ; Boot Menu maximum height |
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| 94 | at ROMVARS.bBootDelay, db 30 ; Boot Menu selection delay (secs) |
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| 95 | at ROMVARS.bBootLdrType, db BOOTLOADER_TYPE_MENU ; Boot loader type |
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| 96 | at ROMVARS.bMinFddCnt, db 1 ; Assume at least 1 floppy drive present if autodetect fails |
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| 97 | at ROMVARS.bStealSize, db 1 ; Steal 1kB from base memory in full mode |
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| 98 | |
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| 99 | at ROMVARS.ideVars0+IDEVARS.wPort, dw 300h ; Controller Command Block base port |
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| 100 | at ROMVARS.ideVars0+IDEVARS.wPortCtrl, dw 308h ; Controller Control Block base port |
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| 101 | at ROMVARS.ideVars0+IDEVARS.bBusType, db BUS_TYPE_8_DUAL ; Bus type |
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| 102 | at ROMVARS.ideVars0+IDEVARS.bIRQ, db 0 ; IRQ |
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| 103 | at ROMVARS.ideVars0+IDEVARS.drvParamsMaster+DRVPARAMS.wFlags, db FLG_DRVPARAMS_BLOCKMODE |
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| 104 | at ROMVARS.ideVars0+IDEVARS.drvParamsSlave+DRVPARAMS.wFlags, db FLG_DRVPARAMS_BLOCKMODE |
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| 105 | %endif |
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| 106 | iend |
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| 107 | |
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| 108 | |
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| 109 | ; Include .asm files (static data and libraries) |
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| 110 | %include "Strings.asm" ; For BIOS message strings |
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| 111 | %include "math.asm" ; For Math library |
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| 112 | %include "string.asm" ; For String library |
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| 113 | %include "print.asm" ; For Print library |
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| 114 | %include "keys.asm" ; For keyboard library (required by menu library) |
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| 115 | %include "menu.asm" ; For menu library |
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| 116 | %include "PrintString.asm" ; Customized printing for this BIOS |
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| 117 | %include "SoftDelay.asm" ; For software delay loops |
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| 118 | |
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| 119 | ; Include .asm files (Initialization and drive detection) |
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| 120 | %include "Initialize.asm" ; For BIOS initialization |
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[33] | 121 | %include "Interrupts.asm" ; For Interrupt initialization |
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[3] | 122 | %include "RamVars.asm" ; For RAMVARS initialization and access |
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| 123 | %include "CreateDPT.asm" ; For creating DPTs |
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| 124 | %include "FindDPT.asm" ; For finding DPTs |
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| 125 | %include "AccessDPT.asm" ; For accessing DPTs |
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| 126 | %include "CompatibleDPT.asm" ; For creating compatible DPTs |
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| 127 | %include "BootInfo.asm" ; For creating BOOTNFO structs |
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| 128 | %include "AtaID.asm" ; For ATA Identify Device information |
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| 129 | %include "DetectDrives.asm" ; For detecting IDE drives |
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| 130 | %include "DetectPrint.asm" ; For printing drive detection strings |
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| 131 | |
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| 132 | ; Include .asm files (boot menu) |
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| 133 | %include "BootVars.asm" ; For accessing BOOTVARS struct |
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| 134 | %include "BootMenu.asm" ; For Boot Menu operations |
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| 135 | %include "BootMenuEvent.asm" ; For menu library event handling |
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| 136 | %include "FloppyDrive.asm" ; Floppy Drive related functions |
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| 137 | %include "BootMenuPrint.asm" ; For printing Boot Menu strings |
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| 138 | %include "BootMenuPrintCfg.asm" ; For printing hard disk configuration |
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| 139 | |
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| 140 | ; Include .asm files (general drive accessing) |
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| 141 | %include "DriveXlate.asm" ; For swapping drive numbers |
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| 142 | %include "HAddress.asm" ; For sector address translations |
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| 143 | %include "HCapacity.asm" ; For calculating drive capacity |
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| 144 | %include "HError.asm" ; For error checking |
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| 145 | %include "HPIO.asm" ; For PIO transfers |
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| 146 | %include "HIRQ.asm" ; For IRQ handling |
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| 147 | %include "HStatus.asm" ; For reading hard disk status |
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| 148 | %include "HDrvSel.asm" ; For selecting drive to access |
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| 149 | %include "HCommand.asm" ; For outputting command and parameters |
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| 150 | |
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| 151 | ; Include .asm files (Interrupt handlers) |
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| 152 | %include "Int13h.asm" ; For Int 13h, Disk functions |
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| 153 | %include "Int18h.asm" ; For Int 18h, ROM Boot and Boot error |
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| 154 | %include "Int19h.asm" ; For Int 19h, Boot Loader |
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| 155 | %include "Int19hMenu.asm" ; For Int 19h, Boot Loader for Boot Menu |
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| 156 | %include "BootPrint.asm" ; For printing boot information |
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| 157 | |
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| 158 | ; Include .asm files (Hard Disk BIOS functions) |
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| 159 | %include "AH0h_HReset.asm" ; Required by Int13h_Jump.asm |
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| 160 | %include "AH1h_HStatus.asm" ; Required by Int13h_Jump.asm |
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| 161 | %include "AH2h_HRead.asm" ; Required by Int13h_Jump.asm |
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| 162 | %include "AH3h_HWrite.asm" ; Required by Int13h_Jump.asm |
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| 163 | %include "AH4h_HVerify.asm" ; Required by Int13h_Jump.asm |
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| 164 | %include "AH5h_HFormat.asm" ; Required by Int13h_Jump.asm |
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| 165 | %include "AH8h_HParams.asm" ; Required by Int13h_Jump.asm |
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| 166 | %include "AH9h_HInit.asm" ; Required by Int13h_Jump.asm |
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| 167 | %include "AHCh_HSeek.asm" ; Required by Int13h_Jump.asm |
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| 168 | %include "AHDh_HReset.asm" ; Required by Int13h_Jump.asm |
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| 169 | %include "AH10h_HReady.asm" ; Required by Int13h_Jump.asm |
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| 170 | %include "AH11h_HRecal.asm" ; Required by Int13h_Jump.asm |
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| 171 | %include "AH14h_HDiag.asm" ; Required by Int13h_Jump.asm |
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| 172 | %include "AH15h_HSize.asm" ; Required by Int13h_Jump.asm |
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| 173 | %include "AH23h_HFeatures.asm" ; Required by Int13h_Jump.asm |
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| 174 | %include "AH24h_HSetBlocks.asm" ; Required by Int13h_Jump.asm |
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| 175 | %include "AH25h_HDrvID.asm" ; Required by Int13h_Jump.asm |
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| 176 | |
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| 177 | |
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| 178 | |
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| 179 | ; Fill with zeroes until size is what we want |
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| 180 | times (CNT_ROM_BLOCKS*512)-($-$$) db 0 |
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