source: xtideuniversalbios/trunk/XTIDE_Universal_BIOS/Src/Main.asm@ 595

Last change on this file since 595 was 594, checked in by Tomi Tilli, 6 years ago

Previosly committed flash fix for configurator was incomplete. Now fixed properly.
Added MODULE_MFM_COMPATIBILITY.
File size: 15.3 KB
Line 
1; Project name : XTIDE Universal BIOS
2; Authors : Tomi Tilli
3; : aitotat@gmail.com
4; :
5; : Greg Lindhorst
6; : gregli@hotmail.com
7; ;
8; : Krister Nordvall
9; : krille_n_@hotmail.com
10; :
11; Description : Main file for BIOS. This is the only file that needs
12; to be compiled since other files are included to this
13; file (so no linker needed, Nasm does it all).
14
15;
16; XTIDE Universal BIOS and Associated Tools
17; Copyright (C) 2009-2010 by Tomi Tilli, 2011-2013 by XTIDE Universal BIOS Team.
18;
19; This program is free software; you can redistribute it and/or modify
20; it under the terms of the GNU General Public License as published by
21; the Free Software Foundation; either version 2 of the License, or
22; (at your option) any later version.
23;
24; This program is distributed in the hope that it will be useful,
25; but WITHOUT ANY WARRANTY; without even the implied warranty of
26; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
27; GNU General Public License for more details.
28; Visit http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
29;
30
31 ORG 0 ; Code start offset 0000h
32
33 ; We must define included libraries before including "AssemblyLibrary.inc".
34%define EXCLUDE_FROM_XUB ; Exclude unused library functions
35%ifdef MODULE_BOOT_MENU
36 %define MENUEVENT_INLINE_OFFSETS ; Only one menu required, save space and inline offsets
37 %define INCLUDE_MENU_LIBRARY
38 %define MENU_NO_ESC ; User cannot 'esc' out of the menu
39%else ; If no boot menu included
40 %define INCLUDE_DISPLAY_LIBRARY
41 %define INCLUDE_KEYBOARD_LIBRARY
42 %define INCLUDE_TIME_LIBRARY
43%endif
44
45
46 ; Included .inc files
47 %include "AssemblyLibrary.inc" ; Assembly Library. Must be included first!
48 %include "ModuleDependency.inc" ; Dependency checks for optional modules. Must be included second!
49 %include "Version.inc"
50 %include "ATA_ID.inc" ; For ATA Drive Information structs
51 %include "IdeRegisters.inc" ; For ATA Registers, flags and commands
52 %include "Int13h.inc" ; Equates for INT 13h functions
53 %include "CustomDPT.inc" ; For Disk Parameter Table
54 %include "RomVars.inc" ; For ROMVARS and IDEVARS structs
55 %include "RamVars.inc" ; For RAMVARS struct
56 %include "BootVars.inc" ; For BOOTVARS struct
57 %include "IdeIO.inc" ; Macros for IDE port I/O
58 %include "DeviceIDE.inc" ; For IDE device equates
59
60
61
62; Section containing code
63SECTION .text
64
65; ROM variables (must start at offset 0)
66CNT_ROM_BLOCKS EQU BIOS_SIZE / 512 ; number of 512B blocks, 16 = 8kB BIOS
67istruc ROMVARS
68 at ROMVARS.wRomSign, dw 0AA55h ; PC ROM signature
69 at ROMVARS.bRomSize, db CNT_ROM_BLOCKS ; ROM size in 512B blocks
70 at ROMVARS.rgbJump, jmp Initialize_FromMainBiosRomSearch
71 at ROMVARS.rgbSign, db FLASH_SIGNATURE
72 at ROMVARS.szTitle, db TITLE_STRING
73 at ROMVARS.szVersion, db ROM_VERSION_STRING
74
75;---------------------------;
76; AT Build default settings ;
77;---------------------------;
78%ifdef USE_AT
79%ifdef USE_386
80 at ROMVARS.wFlags, dw FLG_ROMVARS_FULLMODE | FLG_ROMVARS_IGNORE_MOTHERBOARD_DRIVES | MASK_ROMVARS_INCLUDED_MODULES
81%else
82 at ROMVARS.wFlags, dw FLG_ROMVARS_FULLMODE | MASK_ROMVARS_INCLUDED_MODULES
83%endif
84 at ROMVARS.wDisplayMode, dw DEFAULT_TEXT_MODE
85%ifdef MODULE_BOOT_MENU
86 at ROMVARS.wBootTimeout, dw BOOT_MENU_DEFAULT_TIMEOUT
87 at ROMVARS.pColorTheme, dw ColorTheme ; Offset to the ATTRIBUTE_CHARS struc that holds the color theme
88%endif
89 at ROMVARS.bIdeCnt, db 2 ; Number of supported controllers
90 at ROMVARS.bBootDrv, db 80h ; Boot Menu default drive
91 at ROMVARS.bMinFddCnt, db 0 ; Do not force minimum number of floppy drives
92 at ROMVARS.bStealSize, db 1 ; Steal 1kB from base memory
93 at ROMVARS.bIdleTimeout, db 0 ; Standby timer disabled by default
94
95 at ROMVARS.ideVars0+IDEVARS.wBasePort, dw DEVICE_ATA_PRIMARY_PORT ; Controller Command Block base port
96 at ROMVARS.ideVars0+IDEVARS.wControlBlockPort, dw DEVICE_ATA_PRIMARY_PORTCTRL ; Controller Control Block base port
97 at ROMVARS.ideVars0+IDEVARS.bDevice, db DEVICE_16BIT_ATA
98 at ROMVARS.ideVars0+IDEVARS.bIRQ, db 14
99 at ROMVARS.ideVars0+IDEVARS.drvParamsMaster+DRVPARAMS.wFlags, dw DISABLE_WRITE_CACHE | FLG_DRVPARAMS_BLOCKMODE | (TRANSLATEMODE_AUTO<<TRANSLATEMODE_FIELD_POSITION)
100 at ROMVARS.ideVars0+IDEVARS.drvParamsSlave+DRVPARAMS.wFlags, dw DISABLE_WRITE_CACHE | FLG_DRVPARAMS_BLOCKMODE | (TRANSLATEMODE_AUTO<<TRANSLATEMODE_FIELD_POSITION)
101
102 at ROMVARS.ideVars1+IDEVARS.wBasePort, dw DEVICE_ATA_SECONDARY_PORT
103 at ROMVARS.ideVars1+IDEVARS.wControlBlockPort, dw DEVICE_ATA_SECONDARY_PORTCTRL
104 at ROMVARS.ideVars1+IDEVARS.bDevice, db DEVICE_16BIT_ATA
105 at ROMVARS.ideVars1+IDEVARS.bIRQ, db 15
106 at ROMVARS.ideVars1+IDEVARS.drvParamsMaster+DRVPARAMS.wFlags, dw DISABLE_WRITE_CACHE | FLG_DRVPARAMS_BLOCKMODE | (TRANSLATEMODE_AUTO<<TRANSLATEMODE_FIELD_POSITION)
107 at ROMVARS.ideVars1+IDEVARS.drvParamsSlave+DRVPARAMS.wFlags, dw DISABLE_WRITE_CACHE | FLG_DRVPARAMS_BLOCKMODE | (TRANSLATEMODE_AUTO<<TRANSLATEMODE_FIELD_POSITION)
108
109 at ROMVARS.ideVars2+IDEVARS.wBasePort, dw DEVICE_ATA_TERTIARY_PORT
110 at ROMVARS.ideVars2+IDEVARS.wControlBlockPort, dw DEVICE_ATA_TERTIARY_PORTCTRL
111 at ROMVARS.ideVars2+IDEVARS.bDevice, db DEVICE_16BIT_ATA
112 at ROMVARS.ideVars2+IDEVARS.bIRQ, db 0 ; Should be 11 on the GSI Inc. Model 2C
113 at ROMVARS.ideVars2+IDEVARS.drvParamsMaster+DRVPARAMS.wFlags, dw DISABLE_WRITE_CACHE | FLG_DRVPARAMS_BLOCKMODE | (TRANSLATEMODE_AUTO<<TRANSLATEMODE_FIELD_POSITION)
114 at ROMVARS.ideVars2+IDEVARS.drvParamsSlave+DRVPARAMS.wFlags, dw DISABLE_WRITE_CACHE | FLG_DRVPARAMS_BLOCKMODE | (TRANSLATEMODE_AUTO<<TRANSLATEMODE_FIELD_POSITION)
115
116 at ROMVARS.ideVars3+IDEVARS.wBasePort, dw DEVICE_ATA_QUATERNARY_PORT
117 at ROMVARS.ideVars3+IDEVARS.wControlBlockPort, dw DEVICE_ATA_QUATERNARY_PORTCTRL
118 at ROMVARS.ideVars3+IDEVARS.bDevice, db DEVICE_16BIT_ATA
119 at ROMVARS.ideVars3+IDEVARS.bIRQ, db 0 ; Should be 10 on the GSI Inc. Model 2C
120 at ROMVARS.ideVars3+IDEVARS.drvParamsMaster+DRVPARAMS.wFlags, dw DISABLE_WRITE_CACHE | FLG_DRVPARAMS_BLOCKMODE | (TRANSLATEMODE_AUTO<<TRANSLATEMODE_FIELD_POSITION)
121 at ROMVARS.ideVars3+IDEVARS.drvParamsSlave+DRVPARAMS.wFlags, dw DISABLE_WRITE_CACHE | FLG_DRVPARAMS_BLOCKMODE | (TRANSLATEMODE_AUTO<<TRANSLATEMODE_FIELD_POSITION)
122
123%ifdef MODULE_SERIAL
124 at ROMVARS.ideVarsSerialAuto+IDEVARS.bDevice, db DEVICE_SERIAL_PORT
125%endif
126%else
127;-----------------------------------;
128; XT and XT+ Build default settings ;
129;-----------------------------------;
130 at ROMVARS.wFlags, dw MASK_ROMVARS_INCLUDED_MODULES
131 at ROMVARS.wDisplayMode, dw DEFAULT_TEXT_MODE
132%ifdef MODULE_BOOT_MENU
133 at ROMVARS.wBootTimeout, dw BOOT_MENU_DEFAULT_TIMEOUT
134 at ROMVARS.pColorTheme, dw ColorTheme ; Offset to the ATTRIBUTE_CHARS struc that holds the color theme
135%endif
136 at ROMVARS.bIdeCnt, db 1
137 at ROMVARS.bBootDrv, db 80h ; Boot Menu default drive
138 at ROMVARS.bMinFddCnt, db 0 ; Do not force minimum number of floppy drives
139 at ROMVARS.bStealSize, db 1 ; Steal 1kB from base memory in full mode
140 at ROMVARS.bIdleTimeout, db 0 ; Standby timer disabled by default
141
142%ifndef MODULE_8BIT_IDE
143 at ROMVARS.ideVars0+IDEVARS.wBasePort, dw DEVICE_ATA_PRIMARY_PORT ; Controller Command Block base port
144 at ROMVARS.ideVars0+IDEVARS.wControlBlockPort, dw DEVICE_ATA_PRIMARY_PORTCTRL ; Controller Control Block base port
145 at ROMVARS.ideVars0+IDEVARS.bDevice, db DEVICE_16BIT_ATA
146%elifdef MODULE_8BIT_IDE_ADVANCED
147 at ROMVARS.ideVars0+IDEVARS.wBasePort, dw DEVICE_XTIDE_DEFAULT_PORT ; Controller Command Block base port
148 at ROMVARS.ideVars0+IDEVARS.bDevice, db DEVICE_8BIT_XTCF_PIO8
149%else
150 at ROMVARS.ideVars0+IDEVARS.wBasePort, dw DEVICE_XTIDE_DEFAULT_PORT ; Controller Command Block base port
151 at ROMVARS.ideVars0+IDEVARS.wControlBlockPort, dw DEVICE_XTIDE_DEFAULT_PORTCTRL ; Controller Control Block base port
152 at ROMVARS.ideVars0+IDEVARS.bDevice, db DEVICE_8BIT_XTIDE_REV1
153%endif
154 at ROMVARS.ideVars0+IDEVARS.drvParamsMaster+DRVPARAMS.wFlags, db DISABLE_WRITE_CACHE | FLG_DRVPARAMS_BLOCKMODE | (TRANSLATEMODE_AUTO<<TRANSLATEMODE_FIELD_POSITION)
155 at ROMVARS.ideVars0+IDEVARS.drvParamsSlave+DRVPARAMS.wFlags, db DISABLE_WRITE_CACHE | FLG_DRVPARAMS_BLOCKMODE | (TRANSLATEMODE_AUTO<<TRANSLATEMODE_FIELD_POSITION)
156
157 at ROMVARS.ideVars1+IDEVARS.wBasePort, dw DEVICE_ATA_SECONDARY_PORT
158 at ROMVARS.ideVars1+IDEVARS.wControlBlockPort, dw DEVICE_ATA_SECONDARY_PORTCTRL
159 at ROMVARS.ideVars1+IDEVARS.bDevice, db DEVICE_16BIT_ATA
160 at ROMVARS.ideVars1+IDEVARS.drvParamsMaster+DRVPARAMS.wFlags, db DISABLE_WRITE_CACHE | FLG_DRVPARAMS_BLOCKMODE | (TRANSLATEMODE_AUTO<<TRANSLATEMODE_FIELD_POSITION)
161 at ROMVARS.ideVars1+IDEVARS.drvParamsSlave+DRVPARAMS.wFlags, db DISABLE_WRITE_CACHE | FLG_DRVPARAMS_BLOCKMODE | (TRANSLATEMODE_AUTO<<TRANSLATEMODE_FIELD_POSITION)
162
163 at ROMVARS.ideVars2+IDEVARS.wBasePort, dw DEVICE_ATA_TERTIARY_PORT
164 at ROMVARS.ideVars2+IDEVARS.wControlBlockPort, dw DEVICE_ATA_TERTIARY_PORTCTRL
165 at ROMVARS.ideVars2+IDEVARS.bDevice, db DEVICE_16BIT_ATA
166 at ROMVARS.ideVars2+IDEVARS.drvParamsMaster+DRVPARAMS.wFlags, db DISABLE_WRITE_CACHE | FLG_DRVPARAMS_BLOCKMODE | (TRANSLATEMODE_AUTO<<TRANSLATEMODE_FIELD_POSITION)
167 at ROMVARS.ideVars2+IDEVARS.drvParamsSlave+DRVPARAMS.wFlags, db DISABLE_WRITE_CACHE | FLG_DRVPARAMS_BLOCKMODE | (TRANSLATEMODE_AUTO<<TRANSLATEMODE_FIELD_POSITION)
168
169 at ROMVARS.ideVars3+IDEVARS.wBasePort, dw DEVICE_ATA_QUATERNARY_PORT
170 at ROMVARS.ideVars3+IDEVARS.wControlBlockPort, dw DEVICE_ATA_QUATERNARY_PORTCTRL
171 at ROMVARS.ideVars3+IDEVARS.bDevice, db DEVICE_16BIT_ATA
172 at ROMVARS.ideVars3+IDEVARS.drvParamsMaster+DRVPARAMS.wFlags, db DISABLE_WRITE_CACHE | FLG_DRVPARAMS_BLOCKMODE | (TRANSLATEMODE_AUTO<<TRANSLATEMODE_FIELD_POSITION)
173 at ROMVARS.ideVars3+IDEVARS.drvParamsSlave+DRVPARAMS.wFlags, db DISABLE_WRITE_CACHE | FLG_DRVPARAMS_BLOCKMODE | (TRANSLATEMODE_AUTO<<TRANSLATEMODE_FIELD_POSITION)
174
175%ifdef MODULE_SERIAL
176 at ROMVARS.ideVarsSerialAuto+IDEVARS.bDevice, db DEVICE_SERIAL_PORT
177%endif
178%endif
179iend
180
181 ; Strings are first to avoid them moving unnecessarily when code is turned on and off with %ifdef's
182 ; since some groups of strings need to be on the same 256-byte page.
183 ;
184%ifdef MODULE_STRINGS_COMPRESSED
185 %define STRINGSCOMPRESSED_STRINGS
186 %include "StringsCompressed.asm"
187%else
188 %include "Strings.asm" ; For BIOS message strings
189%endif
190
191 ; Libraries, data, Initialization and drive detection
192
193 %include "AssemblyLibrary.asm"
194%ifdef MODULE_WIN95_CMOS_HACK
195 %include "CMOS.asm" ; This belongs in the Assembly Library
196%endif
197
198 ; String compression tables need to come after the AssemblyLibrary (since they depend on addresses
199 ; established in the assembly library), and are unnecessary if strings are not compressed.
200 ;
201%ifdef MODULE_STRINGS_COMPRESSED
202 %undef STRINGSCOMPRESSED_STRINGS
203 %define STRINGSCOMPRESSED_TABLES
204 %include "StringsCompressed.asm"
205%endif
206
207 %include "Initialize.asm" ; For BIOS initialization
208 %include "Interrupts.asm" ; For Interrupt initialization
209 %include "RamVars.asm" ; For RAMVARS initialization and access
210 %include "BootVars.asm" ; For initializing variables used during init and boot
211 %include "FloppyDrive.asm" ; Floppy Drive related functions
212 %include "CreateDPT.asm" ; For creating DPTs
213 %include "FindDPT.asm" ; For finding DPTs
214 %include "AccessDPT.asm" ; For accessing DPTs
215 %include "AtaGeometry.asm" ; For generating L-CHS parameters
216 %include "DrvDetectInfo.asm" ; For creating DRVDETECTINFO structs
217 %include "AtaID.asm" ; For ATA Identify Device information
218 %include "DetectDrives.asm" ; For detecting IDE drives
219 %include "DetectPrint.asm" ; For printing drive detection strings
220%ifdef MODULE_COMPATIBLE_TABLES
221 %include "CompatibleDPT.asm"
222%endif
223
224 ; Hotkey Bar
225%ifdef MODULE_HOTKEYS
226 %include "HotkeyBar.asm" ; For hotkeys during drive detection and boot menu
227%endif
228%ifdef MODULE_DRIVEXLATE
229 %include "DriveXlate.asm" ; For swapping drive numbers, must come immediately after HotkeyBar.asm
230%endif
231
232 ; Boot menu
233%ifdef MODULE_BOOT_MENU
234 %include "BootMenu.asm" ; For Boot Menu operations
235 %include "BootMenuEvent.asm" ; For menu library event handling
236 ; NOTE: BootMenuPrint needs to come immediately after BootMenuEvent
237 ; so that jump table entries in BootMenuEvent stay within 8-bits
238 %include "BootMenuPrint.asm" ; For printing Boot Menu strings, also includes "BootMenuPrintCfg.asm"
239%endif
240
241 ; Boot loader
242%ifdef MODULE_VERY_LATE_INIT
243 %include "Int13hBiosInit.asm"
244%endif
245 %include "Int19h.asm" ; For Int 19h, Boot Loader
246 %include "BootSector.asm" ; For loading boot sector
247 %include "Int19hReset.asm" ; INT 19h handler for proper system reset
248
249 ; For all device types
250 %include "Idepack.asm"
251 %include "Device.asm"
252 %include "Timer.asm" ; For timeout and delay
253
254 ; IDE Device support
255%ifdef MODULE_ADVANCED_ATA
256 %include "AdvAtaInit.asm" ; For initializing VLB and PCI controllers
257 %include "Vision.asm" ; QDI Vision QD6500 and QD6580 support
258 %include "PDC20x30.asm" ; Promise PDC 20230-C and 20630 support
259%endif
260 %include "IdeCommand.asm"
261%ifdef MODULE_8BIT_IDE_ADVANCED
262 %include "JrIdeTransfer.asm" ; Must be included after IdeCommand.asm
263 %include "IdeDmaBlock.asm"
264%endif
265 %include "IdeTransfer.asm"
266 %include "IdePioBlock.asm"
267 %include "IdeWait.asm"
268 %include "IdeError.asm" ; Must be included after IdeWait.asm
269 %include "IdeDPT.asm"
270 %include "IdeIO.asm"
271%ifdef MODULE_IRQ
272 %include "IdeIrq.asm"
273%endif
274
275 ; Serial Device support
276%ifdef MODULE_SERIAL ; Serial Port Device support
277 %include "SerialCommand.asm"
278 %include "SerialDPT.asm"
279%endif
280
281 ; INT 13h Hard Disk BIOS functions
282%ifdef MODULE_MFM_COMPATIBILITY
283 %include "Int13hMFMcompatibility.asm"
284%endif
285 %include "Int13h.asm" ; For Int 13h, Disk functions
286 %include "AH0h_HReset.asm"
287 %include "AH1h_HStatus.asm"
288 %include "AH2h_HRead.asm"
289 %include "AH3h_HWrite.asm"
290 %include "AH4h_HVerify.asm"
291 %include "AH8h_HParams.asm"
292 %include "AH9h_HInit.asm"
293 %include "AHCh_HSeek.asm"
294 %include "AH10h_HReady.asm"
295 %include "AH11h_HRecal.asm"
296 %include "AH15h_HSize.asm"
297%ifdef MODULE_8BIT_IDE_ADVANCED
298 %include "AH1Eh_XTCF.asm"
299%endif
300 %include "AH23h_HFeatures.asm"
301 %include "AH24h_HSetBlocks.asm"
302 %include "AH25h_HDrvID.asm"
303 %include "Address.asm" ; For sector address translations
304 %include "Prepare.asm" ; For buffer pointer normalization
305%ifdef MODULE_EBIOS
306 %include "AH42h_ExtendedReadSectors.asm"
307 %include "AH43h_ExtendedWriteSectors.asm"
308 %include "AH44h_ExtendedVerifySectors.asm"
309 %include "AH47h_ExtendedSeek.asm"
310 %include "AH48h_GetExtendedDriveParameters.asm"
311 %include "AH41h_CheckIfExtensionsPresent.asm"
312%endif
313
314
315%ifndef CHECK_FOR_UNUSED_ENTRYPOINTS
316; Although it's very unlikely to happen, we give warnings for builds that cannot be automatically checksummed due to the size being too large.
317; In some cases it's theoretically possible to checksum the build anyway (manually) which is why these are warnings and not errors.
318%if BIOS_SIZE = 8192 ; A small build, possibly a candidate for the ROM socket on a 3Com 3C503 card.
319 %if ($-$$) <= BIOS_SIZE ; Only give warnings when the problem isn't obvious anyway.
320 %if ($-$$) > BIOS_SIZE - 3
321 %warning "This build is too large to be auto-checksummed!"
322 %endif
323 %endif
324%elif ($-$$) = BIOS_SIZE ; A large or tiny build.
325 %warning "This build is too large to be auto-checksummed!"
326%endif
327%endif
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