[3] | 1 | ; Project name : XTIDE Universal BIOS |
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[86] | 2 | ; Authors : Tomi Tilli |
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| 3 | ; : aitotat@gmail.com |
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| 4 | ; : |
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[181] | 5 | ; : Greg Lindhorst |
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| 6 | ; : gregli@hotmail.com |
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| 7 | ; ; |
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[86] | 8 | ; : Krister Nordvall |
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| 9 | ; : krille_n_@hotmail.com |
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| 10 | ; : |
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[3] | 11 | ; Description : Main file for BIOS. This is the only file that needs |
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| 12 | ; to be compiled since other files are included to this |
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| 13 | ; file (so no linker needed, Nasm does it all). |
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| 14 | |
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[294] | 15 | ORG 0 ; Code start offset 0000h |
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[3] | 16 | |
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[183] | 17 | %define MENUEVENT_INLINE_OFFSETS ; Only one menu required, save space and inline offsets |
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[277] | 18 | |
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[181] | 19 | ; Included .inc files |
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| 20 | %include "AssemblyLibrary.inc" ; Assembly Library. Must be included first! |
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[358] | 21 | %include "Version.inc" |
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[181] | 22 | %include "IntController.inc" ; For Interrupt Controller equates |
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| 23 | %include "ATA_ID.inc" ; For ATA Drive Information structs |
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| 24 | %include "IdeRegisters.inc" ; For ATA Registers, flags and commands |
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| 25 | %include "Int13h.inc" ; Equates for INT 13h functions |
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[176] | 26 | %ifdef MODULE_EBIOS |
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[181] | 27 | %include "EBIOS.inc" ; Equates for EBIOS functions |
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[176] | 28 | %endif |
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[181] | 29 | %include "CustomDPT.inc" ; For Disk Parameter Table |
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| 30 | %include "RomVars.inc" ; For ROMVARS and IDEVARS structs |
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| 31 | %include "RamVars.inc" ; For RAMVARS struct |
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[254] | 32 | %include "BootVars.inc" ; For BOOTVARS struct |
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[181] | 33 | %include "BootMenu.inc" ; For Boot Menu |
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| 34 | %include "IDE_8bit.inc" ; For IDE 8-bit data port macros |
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| 35 | %include "DeviceIDE.inc" ; For IDE device equates |
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[3] | 36 | |
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| 37 | |
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| 38 | ; Section containing code |
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| 39 | SECTION .text |
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| 40 | |
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| 41 | ; ROM variables (must start at offset 0) |
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[239] | 42 | CNT_ROM_BLOCKS EQU ROMSIZE / 512 ; number of 512B blocks, 16 = 8kB BIOS |
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[3] | 43 | istruc ROMVARS |
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| 44 | at ROMVARS.wRomSign, dw 0AA55h ; PC ROM signature |
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| 45 | at ROMVARS.bRomSize, db CNT_ROM_BLOCKS ; ROM size in 512B blocks |
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[181] | 46 | at ROMVARS.rgbJump, jmp Initialize_FromMainBiosRomSearch |
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[358] | 47 | at ROMVARS.rgbSign, db FLASH_SIGNATURE |
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| 48 | at ROMVARS.szTitle, db TITLE_STRING |
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| 49 | at ROMVARS.szVersion, db ROM_VERSION_STRING |
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[3] | 50 | |
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[179] | 51 | ;;; For OR'ing into wFlags below |
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[181] | 52 | ;;; |
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[179] | 53 | %ifdef MODULE_SERIAL |
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[181] | 54 | MAIN_FLG_MODULE_SERIAL equ FLG_ROMVARS_MODULE_SERIAL |
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[179] | 55 | %else |
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[181] | 56 | MAIN_FLG_MODULE_SERIAL equ 0 |
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[179] | 57 | %endif |
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| 58 | |
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| 59 | %ifdef MODULE_EBIOS |
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[181] | 60 | MAIN_FLG_MODULE_EBIOS equ FLG_ROMVARS_MODULE_EBIOS |
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[179] | 61 | %else |
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[181] | 62 | MAIN_FLG_MODULE_EBIOS equ 0 |
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[179] | 63 | %endif |
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| 64 | |
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[243] | 65 | %ifdef MODULE_JRIDE |
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| 66 | MAIN_FLG_MODULE_JRIDE equ FLG_ROMVARS_MODULE_JRIDE |
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| 67 | %else |
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| 68 | MAIN_FLG_MODULE_JRIDE equ 0 |
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| 69 | %endif |
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| 70 | |
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| 71 | |
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[3] | 72 | ;---------------------------; |
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| 73 | ; AT Build default settings ; |
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| 74 | ;---------------------------; |
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| 75 | %ifdef USE_AT |
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[243] | 76 | at ROMVARS.wFlags, dw FLG_ROMVARS_FULLMODE | FLG_ROMVARS_DRVXLAT | MAIN_FLG_MODULE_SERIAL | MAIN_FLG_MODULE_EBIOS | MAIN_FLG_MODULE_JRIDE |
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[143] | 77 | at ROMVARS.wDisplayMode, dw DEFAULT_TEXT_MODE |
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[291] | 78 | at ROMVARS.wBootTimeout, dw BOOT_MENU_DEFAULT_TIMEOUT |
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[150] | 79 | at ROMVARS.bIdeCnt, db 4 ; Number of supported controllers |
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[3] | 80 | at ROMVARS.bBootDrv, db 80h ; Boot Menu default drive |
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| 81 | at ROMVARS.bMinFddCnt, db 0 ; Do not force minimum number of floppy drives |
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| 82 | at ROMVARS.bStealSize, db 1 ; Steal 1kB from base memory |
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| 83 | |
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[199] | 84 | at ROMVARS.ideVars0+IDEVARS.wPort, dw DEVICE_ATA_DEFAULT_PORT ; Controller Command Block base port |
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| 85 | at ROMVARS.ideVars0+IDEVARS.wPortCtrl, dw DEVICE_ATA_DEFAULT_PORTCTRL ; Controller Control Block base port |
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[150] | 86 | at ROMVARS.ideVars0+IDEVARS.bDevice, db DEVICE_16BIT_ATA |
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[160] | 87 | at ROMVARS.ideVars0+IDEVARS.bIRQ, db 0 |
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[276] | 88 | at ROMVARS.ideVars0+IDEVARS.drvParamsMaster+DRVPARAMS.wFlags, db DISABLE_WRITE_CACHE | FLG_DRVPARAMS_BLOCKMODE |
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| 89 | at ROMVARS.ideVars0+IDEVARS.drvParamsSlave+DRVPARAMS.wFlags, db DISABLE_WRITE_CACHE | FLG_DRVPARAMS_BLOCKMODE |
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[3] | 90 | |
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| 91 | at ROMVARS.ideVars1+IDEVARS.wPort, dw 170h ; Controller Command Block base port |
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| 92 | at ROMVARS.ideVars1+IDEVARS.wPortCtrl, dw 370h ; Controller Control Block base port |
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[150] | 93 | at ROMVARS.ideVars1+IDEVARS.bDevice, db DEVICE_16BIT_ATA |
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[160] | 94 | at ROMVARS.ideVars1+IDEVARS.bIRQ, db 0 |
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[276] | 95 | at ROMVARS.ideVars1+IDEVARS.drvParamsMaster+DRVPARAMS.wFlags, db DISABLE_WRITE_CACHE | FLG_DRVPARAMS_BLOCKMODE |
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| 96 | at ROMVARS.ideVars1+IDEVARS.drvParamsSlave+DRVPARAMS.wFlags, db DISABLE_WRITE_CACHE | FLG_DRVPARAMS_BLOCKMODE |
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[3] | 97 | |
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[199] | 98 | at ROMVARS.ideVars2+IDEVARS.wPort, dw DEVICE_XTIDE_DEFAULT_PORT ; Controller Command Block base port |
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| 99 | at ROMVARS.ideVars2+IDEVARS.wPortCtrl, dw DEVICE_XTIDE_DEFAULT_PORTCTRL ; Controller Control Block base port |
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[361] | 100 | at ROMVARS.ideVars2+IDEVARS.bDevice, db DEVICE_XTIDE_REV1 |
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[150] | 101 | at ROMVARS.ideVars2+IDEVARS.bIRQ, db 0 |
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[276] | 102 | at ROMVARS.ideVars2+IDEVARS.drvParamsMaster+DRVPARAMS.wFlags, db DISABLE_WRITE_CACHE | FLG_DRVPARAMS_BLOCKMODE |
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| 103 | at ROMVARS.ideVars2+IDEVARS.drvParamsSlave+DRVPARAMS.wFlags, db DISABLE_WRITE_CACHE | FLG_DRVPARAMS_BLOCKMODE |
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[143] | 104 | |
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| 105 | at ROMVARS.ideVars3+IDEVARS.wPort, dw 168h ; Controller Command Block base port |
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| 106 | at ROMVARS.ideVars3+IDEVARS.wPortCtrl, dw 368h ; Controller Control Block base port |
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[150] | 107 | at ROMVARS.ideVars3+IDEVARS.bDevice, db DEVICE_16BIT_ATA |
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| 108 | at ROMVARS.ideVars3+IDEVARS.bIRQ, db 0 |
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[276] | 109 | at ROMVARS.ideVars3+IDEVARS.drvParamsMaster+DRVPARAMS.wFlags, db DISABLE_WRITE_CACHE | FLG_DRVPARAMS_BLOCKMODE |
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| 110 | at ROMVARS.ideVars3+IDEVARS.drvParamsSlave+DRVPARAMS.wFlags, db DISABLE_WRITE_CACHE | FLG_DRVPARAMS_BLOCKMODE |
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[175] | 111 | |
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| 112 | %ifdef MODULE_SERIAL |
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| 113 | at ROMVARS.ideVarsSerialAuto+IDEVARS.bDevice, db DEVICE_SERIAL_PORT |
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[181] | 114 | %endif |
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[3] | 115 | %else |
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| 116 | ;-----------------------------------; |
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| 117 | ; XT and XT+ Build default settings ; |
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| 118 | ;-----------------------------------; |
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[243] | 119 | at ROMVARS.wFlags, dw FLG_ROMVARS_DRVXLAT | MAIN_FLG_MODULE_SERIAL | MAIN_FLG_MODULE_EBIOS | MAIN_FLG_MODULE_JRIDE |
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[143] | 120 | at ROMVARS.wDisplayMode, dw DEFAULT_TEXT_MODE |
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[291] | 121 | at ROMVARS.wBootTimeout, dw BOOT_MENU_DEFAULT_TIMEOUT |
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[3] | 122 | at ROMVARS.bIdeCnt, db 1 ; Number of supported controllers |
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| 123 | at ROMVARS.bBootDrv, db 80h ; Boot Menu default drive |
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| 124 | at ROMVARS.bMinFddCnt, db 1 ; Assume at least 1 floppy drive present if autodetect fails |
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| 125 | at ROMVARS.bStealSize, db 1 ; Steal 1kB from base memory in full mode |
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| 126 | |
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[285] | 127 | at ROMVARS.ideVars0+IDEVARS.wPort, dw DEVICE_XTIDE_DEFAULT_PORT ; Controller Command Block base port |
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| 128 | at ROMVARS.ideVars0+IDEVARS.wPortCtrl, dw DEVICE_XTIDE_DEFAULT_PORTCTRL ; Controller Control Block base port |
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[273] | 129 | %ifdef MODULE_JRIDE |
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| 130 | at ROMVARS.ideVars0+IDEVARS.bDevice, db DEVICE_JRIDE_ISA |
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| 131 | %else |
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[361] | 132 | at ROMVARS.ideVars0+IDEVARS.bDevice, db DEVICE_XTIDE_REV1 |
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[273] | 133 | %endif |
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[3] | 134 | at ROMVARS.ideVars0+IDEVARS.bIRQ, db 0 ; IRQ |
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[276] | 135 | at ROMVARS.ideVars0+IDEVARS.drvParamsMaster+DRVPARAMS.wFlags, db DISABLE_WRITE_CACHE | FLG_DRVPARAMS_BLOCKMODE |
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| 136 | at ROMVARS.ideVars0+IDEVARS.drvParamsSlave+DRVPARAMS.wFlags, db DISABLE_WRITE_CACHE | FLG_DRVPARAMS_BLOCKMODE |
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[143] | 137 | |
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[276] | 138 | at ROMVARS.ideVars1+IDEVARS.drvParamsMaster+DRVPARAMS.wFlags, db DISABLE_WRITE_CACHE | FLG_DRVPARAMS_BLOCKMODE |
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| 139 | at ROMVARS.ideVars1+IDEVARS.drvParamsSlave+DRVPARAMS.wFlags, db DISABLE_WRITE_CACHE | FLG_DRVPARAMS_BLOCKMODE |
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[143] | 140 | |
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[276] | 141 | at ROMVARS.ideVars2+IDEVARS.drvParamsMaster+DRVPARAMS.wFlags, db DISABLE_WRITE_CACHE | FLG_DRVPARAMS_BLOCKMODE |
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| 142 | at ROMVARS.ideVars2+IDEVARS.drvParamsSlave+DRVPARAMS.wFlags, db DISABLE_WRITE_CACHE | FLG_DRVPARAMS_BLOCKMODE |
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[143] | 143 | |
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[276] | 144 | at ROMVARS.ideVars3+IDEVARS.drvParamsMaster+DRVPARAMS.wFlags, db DISABLE_WRITE_CACHE | FLG_DRVPARAMS_BLOCKMODE |
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| 145 | at ROMVARS.ideVars3+IDEVARS.drvParamsSlave+DRVPARAMS.wFlags, db DISABLE_WRITE_CACHE | FLG_DRVPARAMS_BLOCKMODE |
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[175] | 146 | |
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| 147 | %ifdef MODULE_SERIAL |
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| 148 | at ROMVARS.ideVarsSerialAuto+IDEVARS.bDevice, db DEVICE_SERIAL_PORT |
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[3] | 149 | %endif |
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[181] | 150 | %endif |
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[3] | 151 | iend |
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| 152 | |
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[334] | 153 | ; Strings are first to avoid them moving unnessarily when code is turned on and off with %ifdef's |
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| 154 | ; since some groups of strings need to be on the same 256-byte page. |
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| 155 | ; |
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| 156 | %ifdef MODULE_STRINGS_COMPRESSED |
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| 157 | %define STRINGSCOMPRESSED_STRINGS |
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| 158 | %include "StringsCompressed.asm" |
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| 159 | %else |
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| 160 | %include "Strings.asm" ; For BIOS message strings |
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| 161 | %endif |
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| 162 | |
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[248] | 163 | ; Libraries, data, Initialization and drive detection |
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[334] | 164 | |
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[181] | 165 | %include "AssemblyLibrary.asm" |
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[334] | 166 | |
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| 167 | ; String compression tables need to come after the AssemblyLibrary (since they depend on addresses |
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| 168 | ; established in the assembly library), and are unncessary if strings are not compressed. |
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| 169 | ; |
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| 170 | %ifdef MODULE_STRINGS_COMPRESSED |
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| 171 | %undef STRINGSCOMPRESSED_STRINGS |
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| 172 | %define STRINGSCOMPRESSED_TABLES |
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| 173 | %include "StringsCompressed.asm" |
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| 174 | %endif |
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| 175 | |
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[248] | 176 | %include "Initialize.asm" ; For BIOS initialization |
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| 177 | %include "Interrupts.asm" ; For Interrupt initialization |
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| 178 | %include "RamVars.asm" ; For RAMVARS initialization and access |
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[285] | 179 | %include "CreateDPT.asm" ; For creating DPTs |
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| 180 | %include "FindDPT.asm" ; For finding DPTs |
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[181] | 181 | %include "AccessDPT.asm" ; For accessing DPTs |
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[358] | 182 | %include "LbaAssist.asm" ; For generating L-CHS parameters to LBA drives |
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[254] | 183 | %include "BootMenuInfo.asm" ; For creating BOOTMENUINFO structs |
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[181] | 184 | %include "AtaID.asm" ; For ATA Identify Device information |
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| 185 | %include "DetectDrives.asm" ; For detecting IDE drives |
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| 186 | %include "DetectPrint.asm" ; For printing drive detection strings |
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[248] | 187 | |
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[181] | 188 | ; Boot menu |
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| 189 | %include "BootMenu.asm" ; For Boot Menu operations |
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| 190 | %include "BootMenuEvent.asm" ; For menu library event handling |
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[192] | 191 | ; NOTE: BootMenuPrint needs to come immediately after BootMenuEvent |
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[258] | 192 | ; so that jump table entries in BootMenuEvent stay within 8-bits |
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| 193 | %include "BootMenuPrint.asm" ; For printing Boot Menu strings, also includes "BootMenuPrintCfg.asm" |
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[192] | 194 | %include "BootPrint.asm" ; For printing boot information |
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[181] | 195 | %include "FloppyDrive.asm" ; Floppy Drive related functions |
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| 196 | %include "BootSector.asm" ; For loading boot sector |
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[3] | 197 | |
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[181] | 198 | ; Boot loader |
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[243] | 199 | %include "Int19h.asm" ; For Int 19h, Boot Loader |
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[3] | 200 | |
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[181] | 201 | ; For all device types |
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[192] | 202 | %include "Idepack.asm" |
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[181] | 203 | %include "Device.asm" |
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| 204 | %include "Timer.asm" ; For timeout and delay |
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[155] | 205 | |
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[181] | 206 | ; IDE Device support |
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[238] | 207 | %define IDEDEVICE Ide |
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| 208 | %define ASSEMBLE_SHARED_IDE_DEVICE_FUNCTIONS |
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| 209 | %include "IOMappedIDE.inc" ; Assembly IDE support for normal I/O mapped controllers |
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[181] | 210 | %include "IdeCommand.asm" |
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| 211 | %include "IdeTransfer.asm" ; Must be included after IdeCommand.asm |
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[192] | 212 | %include "IdeWait.asm" |
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[294] | 213 | %include "IdeError.asm" ; Must be included after IdeWait.asm |
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[181] | 214 | %include "IdeDPT.asm" |
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| 215 | %include "IdeIO.asm" |
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| 216 | %include "IdeIrq.asm" |
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[238] | 217 | %undef IDEDEVICE |
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| 218 | %undef ASSEMBLE_SHARED_IDE_DEVICE_FUNCTIONS |
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[155] | 219 | |
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[238] | 220 | ; JR-IDE support |
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| 221 | %ifdef MODULE_JRIDE |
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| 222 | %define IDEDEVICE MemIde |
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| 223 | %include "MemMappedIDE.inc" ; Assembly IDE support for memory mapped controllers |
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| 224 | %include "IdeCommand.asm" |
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| 225 | %include "MemIdeTransfer.asm" ; Must be included after IdeCommand.asm |
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| 226 | %include "IdeWait.asm" |
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[294] | 227 | %include "IdeError.asm" ; Must be included after IdeWait.asm |
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[238] | 228 | %undef IDEDEVICE |
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| 229 | %endif |
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| 230 | |
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| 231 | |
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[181] | 232 | %ifdef MODULE_SERIAL ; Serial Port Device support |
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| 233 | %include "SerialCommand.asm" |
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| 234 | %include "SerialDPT.asm" |
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[175] | 235 | %endif |
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[155] | 236 | |
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[181] | 237 | ; INT 13h Hard Disk BIOS functions |
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| 238 | %include "Int13h.asm" ; For Int 13h, Disk functions |
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| 239 | %include "AH0h_HReset.asm" ; Required by Int13h_Jump.asm |
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| 240 | %include "AH1h_HStatus.asm" ; Required by Int13h_Jump.asm |
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| 241 | %include "AH2h_HRead.asm" ; Required by Int13h_Jump.asm |
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| 242 | %include "AH3h_HWrite.asm" ; Required by Int13h_Jump.asm |
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| 243 | %include "AH4h_HVerify.asm" ; Required by Int13h_Jump.asm |
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| 244 | %include "AH8h_HParams.asm" ; Required by Int13h_Jump.asm |
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| 245 | %include "AH9h_HInit.asm" ; Required by Int13h_Jump.asm |
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| 246 | %include "AHCh_HSeek.asm" ; Required by Int13h_Jump.asm |
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| 247 | %include "AHDh_HReset.asm" ; Required by Int13h_Jump.asm |
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| 248 | %include "AH10h_HReady.asm" ; Required by Int13h_Jump.asm |
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| 249 | %include "AH11h_HRecal.asm" ; Required by Int13h_Jump.asm |
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| 250 | %include "AH15h_HSize.asm" ; Required by Int13h_Jump.asm |
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| 251 | %include "AH23h_HFeatures.asm" ; Required by Int13h_Jump.asm |
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| 252 | %include "AH24h_HSetBlocks.asm" ; Required by Int13h_Jump.asm |
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| 253 | %include "AH25h_HDrvID.asm" ; Required by Int13h_Jump.asm |
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[221] | 254 | %include "DriveXlate.asm" ; For swapping drive numbers |
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| 255 | %include "Address.asm" ; For sector address translations |
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| 256 | %include "Prepare.asm" ; For buffer pointer normalization |
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[176] | 257 | %ifdef MODULE_EBIOS |
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[181] | 258 | %include "AH42h_ExtendedReadSectors.asm" |
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| 259 | %include "AH43h_ExtendedWriteSectors.asm" |
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| 260 | %include "AH44h_ExtendedVerifySectors.asm" |
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| 261 | %include "AH47h_ExtendedSeek.asm" |
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| 262 | %include "AH48h_GetExtendedDriveParameters.asm" |
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[221] | 263 | %include "AH41h_CheckIfExtensionsPresent.asm" |
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[176] | 264 | %endif |
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