; Project name : XTIDE Universal BIOS ; Description : Defines for ROMVARS struct containing variables stored ; in BIOS ROM. ; ; XTIDE Universal BIOS and Associated Tools ; Copyright (C) 2009-2010 by Tomi Tilli, 2011-2023 by XTIDE Universal BIOS Team. ; ; This program is free software; you can redistribute it and/or modify ; it under the terms of the GNU General Public License as published by ; the Free Software Foundation; either version 2 of the License, or ; (at your option) any later version. ; ; This program is distributed in the hope that it will be useful, ; but WITHOUT ANY WARRANTY; without even the implied warranty of ; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ; GNU General Public License for more details. ; Visit http://www.gnu.org/licenses/old-licenses/gpl-2.0.html ; %ifndef ROMVARS_INC %define ROMVARS_INC ; Master/Slave drive specific parameters struc DRVPARAMS .wFlags resb 2 ; Drive flags .dwMaximumLBA: ; User specified maximum number of sectors .wCylinders resb 2 ; User specified cylinders (1...16383) .wHeadsAndSectors: .bHeads resb 1 ; User specified Heads (1...16) .bSect resb 1 ; User specified Sectors per track (1...63) endstruc ; Bit defines for DRVPARAMS.wFlags - these flags are accessed as bytes so changes here might require changes elsewhere MASK_DRVPARAMS_WRITECACHE EQU (3<<0) ; Bits 0...1, Drive internal write cache settings (must start at bit 0) DEFAULT_WRITE_CACHE EQU 0 ; Must be 0 DISABLE_WRITE_CACHE EQU 1 ENABLE_WRITE_CACHE EQU 2 MASK_DRVPARAMS_TRANSLATEMODE EQU (3< mode conversion ; Segment when RAMVARS is stored to top of interrupt vectors. LITE_MODE_RAMVARS_SEGMENT EQU 30h ; ROM Variables. Written to the ROM image before flashing. ; The ROMVARS version in Version.inc must be incremented whenever this struc changes. struc ROMVARS .wRomSign resb 2 ; ROM Signature (AA55h) .bRomSize resb 1 ; ROM size in 512 byte blocks .rgbJump resb 3 ; First instruction to ROM init (jmp) .rgbSign resb 6 ; Signature for XTIDE Configurator Program (must be even length) .szTitle resb 32 ; BIOS title string .szVersion resb 18 ; BIOS version string (supports up to r999) .pColorTheme resb 2 ; Ptr to the color attribute struc used by the boot menu and hotkey bar .wFlags resb 2 ; Word for ROM flags ; Note! Any additional ROMVARS must be added below if they are supposed to be copied ; over when doing "Load old settings from EEPROM" to a new BIOS loaded from file. .wRamVars resb 2 ; Segment address for RamVars .wDisplayMode resb 2 ; Display mode for boot menu .wBootTimeout resb 2 ; Boot Menu selection timeout in system timer ticks .bIdeCnt resb 1 ; Number of available IDE controllers .bBootDrv resb 1 ; Default drive to boot from .bMinFddCnt resb 1 ; Minimum number of Floppy Drives .bStealSize resb 1 ; Number of 1kB blocks stolen from 640kB base RAM .bIdleTimeout resb 1 ; Standby timer value alignb 2 ; WORD align the IDEVARS structures .ideVarsBegin: .ideVars0 resb IDEVARS_size .ideVars1 resb IDEVARS_size .ideVars2 resb IDEVARS_size .ideVars3 resb IDEVARS_size %ifdef MODULE_SERIAL .ideVarsSerialAuto resb IDEVARS_size %endif .ideVarsEnd: endstruc %ifndef CHECK_FOR_UNUSED_ENTRYPOINTS %if ROMVARS.ideVarsEnd & 0xff00 <> 0 %error ".ideVars structures must fit within the first 256 bytes of the ROM image" %endif %if (ROMVARS.ideVarsEnd - ROMVARS.ideVarsBegin) = 0 %error "there must be at least one .ideVars structure, it would be bizarre if this were not true, but it is assumed in the ah0h reset code." %endif %endif NUMBER_OF_IDEVARS EQU ((ROMVARS.ideVarsEnd - ROMVARS.ideVarsBegin) / IDEVARS_size) ; Bit defines for ROMVARS.wFlags FLG_ROMVARS_FULLMODE EQU (1<<0) ; Full operating mode (steals base RAM, supports EBIOS etc.) FLG_ROMVARS_CLEAR_BDA_HD_COUNT EQU (1<<1) ; This flag has two purposes; * Removes the system BIOS "dummy" drive ; so that Windows 9x protected mode drivers can be used with XUB drives. ; * Some computers (Zenith Z-171 and Z-161) do not clear the BDA hard ; drive count which causes it to increment on each warm boot. FLG_ROMVARS_SERIAL_SCANDETECT EQU (1<<3) ; Scan COM ports at the end of drive detection. Can also be invoked ; by holding down the ALT key at the end of drive detection. ; (Conveniently, this is 8, a fact we exploit when testing the bit) ; Here in case the configuration needs to know functionality is present. Note! Changing the order/location of these flags ; also requires changes elsewhere as they are usually tested using byte-accesses for efficiency. FLG_ROMVARS_MODULE_POWER_MANAGEMENT EQU (1<<5) FLG_ROMVARS_MODULE_8BIT_IDE EQU (1<<6) FLG_ROMVARS_MODULE_8BIT_IDE_ADVANCED EQU (1<<7) FLG_ROMVARS_MODULE_ADVANCED_ATA EQU (1<<8) FLG_ROMVARS_MODULE_BOOT_MENU EQU (1<<9) FLG_ROMVARS_MODULE_EBIOS EQU (1<<10) FLG_ROMVARS_MODULE_HOTKEYS EQU (1<<11) FLG_ROMVARS_MODULE_IRQ EQU (1<<12) FLG_ROMVARS_MODULE_SERIAL EQU (1<<13) FLG_ROMVARS_MODULE_SERIAL_FLOPPY EQU (1<<14) FLG_ROMVARS_MODULE_STRINGS_COMPRESSED EQU (1<<15) ; Boot Menu Display Modes (see Assembly Library Display.inc for standard modes) DEFAULT_TEXT_MODE EQU 4 %endif ; ROMVARS_INC