source: xtideuniversalbios/trunk/XTIDE_Universal_BIOS/Src/Main.asm@ 293

Last change on this file since 293 was 292, checked in by gregli@…, 13 years ago

Small optimization, moved around some serial code to avoid a few jumps and unnecessary number of sectors check.
File size: 11.2 KB
RevLine 
[3]1; Project name : XTIDE Universal BIOS
[86]2; Authors : Tomi Tilli
3; : aitotat@gmail.com
4; :
[181]5; : Greg Lindhorst
6; : gregli@hotmail.com
7; ;
[86]8; : Krister Nordvall
9; : krille_n_@hotmail.com
10; :
[3]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
15ORG 000h ; Code start offset 0000h
16
[183]17%define MENUEVENT_INLINE_OFFSETS ; Only one menu required, save space and inline offsets
[277]18
[181]19 ; Included .inc files
20 %include "AssemblyLibrary.inc" ; Assembly Library. Must be included first!
21 %include "IntController.inc" ; For Interrupt Controller equates
22 %include "ATA_ID.inc" ; For ATA Drive Information structs
23 %include "IdeRegisters.inc" ; For ATA Registers, flags and commands
24 %include "Int13h.inc" ; Equates for INT 13h functions
[176]25%ifdef MODULE_EBIOS
[181]26 %include "EBIOS.inc" ; Equates for EBIOS functions
[176]27%endif
[181]28 %include "CustomDPT.inc" ; For Disk Parameter Table
29 %include "RomVars.inc" ; For ROMVARS and IDEVARS structs
30 %include "RamVars.inc" ; For RAMVARS struct
[254]31 %include "BootVars.inc" ; For BOOTVARS struct
[181]32 %include "BootMenu.inc" ; For Boot Menu
33 %include "IDE_8bit.inc" ; For IDE 8-bit data port macros
34 %include "DeviceIDE.inc" ; For IDE device equates
[3]35
36
37; Section containing code
38SECTION .text
39
40; ROM variables (must start at offset 0)
[239]41CNT_ROM_BLOCKS EQU ROMSIZE / 512 ; number of 512B blocks, 16 = 8kB BIOS
[3]42istruc ROMVARS
43 at ROMVARS.wRomSign, dw 0AA55h ; PC ROM signature
44 at ROMVARS.bRomSize, db CNT_ROM_BLOCKS ; ROM size in 512B blocks
[181]45 at ROMVARS.rgbJump, jmp Initialize_FromMainBiosRomSearch
[276]46 at ROMVARS.rgbSign, db "XTIDE200" ; Signature for flash program
[3]47 at ROMVARS.szTitle
48 db "-=XTIDE Universal BIOS"
49%ifdef USE_AT
[88]50 db " (AT)=-",NULL
[3]51%elifdef USE_186
[88]52 db " (XT+)=-",NULL
[3]53%else
[88]54 db " (XT)=-",NULL
[3]55%endif
[288]56 at ROMVARS.szVersion, db "v2.0.0",BETA," (",__DATE__,")",NULL
[3]57
[179]58;;; For OR'ing into wFlags below
[181]59;;;
[179]60%ifdef MODULE_SERIAL
[181]61 MAIN_FLG_MODULE_SERIAL equ FLG_ROMVARS_MODULE_SERIAL
[179]62%else
[181]63 MAIN_FLG_MODULE_SERIAL equ 0
[179]64%endif
65
66%ifdef MODULE_EBIOS
[181]67 MAIN_FLG_MODULE_EBIOS equ FLG_ROMVARS_MODULE_EBIOS
[179]68%else
[181]69 MAIN_FLG_MODULE_EBIOS equ 0
[179]70%endif
71
[243]72%ifdef MODULE_JRIDE
73 MAIN_FLG_MODULE_JRIDE equ FLG_ROMVARS_MODULE_JRIDE
74%else
75 MAIN_FLG_MODULE_JRIDE equ 0
76%endif
77
78
[3]79;---------------------------;
80; AT Build default settings ;
81;---------------------------;
82%ifdef USE_AT
[243]83 at ROMVARS.wFlags, dw FLG_ROMVARS_FULLMODE | FLG_ROMVARS_DRVXLAT | MAIN_FLG_MODULE_SERIAL | MAIN_FLG_MODULE_EBIOS | MAIN_FLG_MODULE_JRIDE
[143]84 at ROMVARS.wDisplayMode, dw DEFAULT_TEXT_MODE
[291]85 at ROMVARS.wBootTimeout, dw BOOT_MENU_DEFAULT_TIMEOUT
[150]86 at ROMVARS.bIdeCnt, db 4 ; Number of supported controllers
[3]87 at ROMVARS.bBootDrv, db 80h ; Boot Menu default drive
88 at ROMVARS.bMinFddCnt, db 0 ; Do not force minimum number of floppy drives
89 at ROMVARS.bStealSize, db 1 ; Steal 1kB from base memory
90
[199]91 at ROMVARS.ideVars0+IDEVARS.wPort, dw DEVICE_ATA_DEFAULT_PORT ; Controller Command Block base port
92 at ROMVARS.ideVars0+IDEVARS.wPortCtrl, dw DEVICE_ATA_DEFAULT_PORTCTRL ; Controller Control Block base port
[150]93 at ROMVARS.ideVars0+IDEVARS.bDevice, db DEVICE_16BIT_ATA
[160]94 at ROMVARS.ideVars0+IDEVARS.bIRQ, db 0
[276]95 at ROMVARS.ideVars0+IDEVARS.drvParamsMaster+DRVPARAMS.wFlags, db DISABLE_WRITE_CACHE | FLG_DRVPARAMS_BLOCKMODE
96 at ROMVARS.ideVars0+IDEVARS.drvParamsSlave+DRVPARAMS.wFlags, db DISABLE_WRITE_CACHE | FLG_DRVPARAMS_BLOCKMODE
[3]97
98 at ROMVARS.ideVars1+IDEVARS.wPort, dw 170h ; Controller Command Block base port
99 at ROMVARS.ideVars1+IDEVARS.wPortCtrl, dw 370h ; Controller Control Block base port
[150]100 at ROMVARS.ideVars1+IDEVARS.bDevice, db DEVICE_16BIT_ATA
[160]101 at ROMVARS.ideVars1+IDEVARS.bIRQ, db 0
[276]102 at ROMVARS.ideVars1+IDEVARS.drvParamsMaster+DRVPARAMS.wFlags, db DISABLE_WRITE_CACHE | FLG_DRVPARAMS_BLOCKMODE
103 at ROMVARS.ideVars1+IDEVARS.drvParamsSlave+DRVPARAMS.wFlags, db DISABLE_WRITE_CACHE | FLG_DRVPARAMS_BLOCKMODE
[3]104
[199]105 at ROMVARS.ideVars2+IDEVARS.wPort, dw DEVICE_XTIDE_DEFAULT_PORT ; Controller Command Block base port
106 at ROMVARS.ideVars2+IDEVARS.wPortCtrl, dw DEVICE_XTIDE_DEFAULT_PORTCTRL ; Controller Control Block base port
[150]107 at ROMVARS.ideVars2+IDEVARS.bDevice, db DEVICE_8BIT_DUAL_PORT_XTIDE
108 at ROMVARS.ideVars2+IDEVARS.bIRQ, db 0
[276]109 at ROMVARS.ideVars2+IDEVARS.drvParamsMaster+DRVPARAMS.wFlags, db DISABLE_WRITE_CACHE | FLG_DRVPARAMS_BLOCKMODE
110 at ROMVARS.ideVars2+IDEVARS.drvParamsSlave+DRVPARAMS.wFlags, db DISABLE_WRITE_CACHE | FLG_DRVPARAMS_BLOCKMODE
[143]111
112 at ROMVARS.ideVars3+IDEVARS.wPort, dw 168h ; Controller Command Block base port
113 at ROMVARS.ideVars3+IDEVARS.wPortCtrl, dw 368h ; Controller Control Block base port
[150]114 at ROMVARS.ideVars3+IDEVARS.bDevice, db DEVICE_16BIT_ATA
115 at ROMVARS.ideVars3+IDEVARS.bIRQ, db 0
[276]116 at ROMVARS.ideVars3+IDEVARS.drvParamsMaster+DRVPARAMS.wFlags, db DISABLE_WRITE_CACHE | FLG_DRVPARAMS_BLOCKMODE
117 at ROMVARS.ideVars3+IDEVARS.drvParamsSlave+DRVPARAMS.wFlags, db DISABLE_WRITE_CACHE | FLG_DRVPARAMS_BLOCKMODE
[175]118
119%ifdef MODULE_SERIAL
120 at ROMVARS.ideVarsSerialAuto+IDEVARS.bDevice, db DEVICE_SERIAL_PORT
[181]121%endif
[3]122%else
123;-----------------------------------;
124; XT and XT+ Build default settings ;
125;-----------------------------------;
[243]126 at ROMVARS.wFlags, dw FLG_ROMVARS_DRVXLAT | MAIN_FLG_MODULE_SERIAL | MAIN_FLG_MODULE_EBIOS | MAIN_FLG_MODULE_JRIDE
[143]127 at ROMVARS.wDisplayMode, dw DEFAULT_TEXT_MODE
[291]128 at ROMVARS.wBootTimeout, dw BOOT_MENU_DEFAULT_TIMEOUT
[3]129 at ROMVARS.bIdeCnt, db 1 ; Number of supported controllers
130 at ROMVARS.bBootDrv, db 80h ; Boot Menu default drive
131 at ROMVARS.bMinFddCnt, db 1 ; Assume at least 1 floppy drive present if autodetect fails
132 at ROMVARS.bStealSize, db 1 ; Steal 1kB from base memory in full mode
133
[285]134 at ROMVARS.ideVars0+IDEVARS.wPort, dw DEVICE_XTIDE_DEFAULT_PORT ; Controller Command Block base port
135 at ROMVARS.ideVars0+IDEVARS.wPortCtrl, dw DEVICE_XTIDE_DEFAULT_PORTCTRL ; Controller Control Block base port
[273]136%ifdef MODULE_JRIDE
137 at ROMVARS.ideVars0+IDEVARS.bDevice, db DEVICE_JRIDE_ISA
138%else
[150]139 at ROMVARS.ideVars0+IDEVARS.bDevice, db DEVICE_8BIT_DUAL_PORT_XTIDE
[273]140%endif
[3]141 at ROMVARS.ideVars0+IDEVARS.bIRQ, db 0 ; IRQ
[276]142 at ROMVARS.ideVars0+IDEVARS.drvParamsMaster+DRVPARAMS.wFlags, db DISABLE_WRITE_CACHE | FLG_DRVPARAMS_BLOCKMODE
143 at ROMVARS.ideVars0+IDEVARS.drvParamsSlave+DRVPARAMS.wFlags, db DISABLE_WRITE_CACHE | FLG_DRVPARAMS_BLOCKMODE
[143]144
[276]145 at ROMVARS.ideVars1+IDEVARS.drvParamsMaster+DRVPARAMS.wFlags, db DISABLE_WRITE_CACHE | FLG_DRVPARAMS_BLOCKMODE
146 at ROMVARS.ideVars1+IDEVARS.drvParamsSlave+DRVPARAMS.wFlags, db DISABLE_WRITE_CACHE | FLG_DRVPARAMS_BLOCKMODE
[143]147
[276]148 at ROMVARS.ideVars2+IDEVARS.drvParamsMaster+DRVPARAMS.wFlags, db DISABLE_WRITE_CACHE | FLG_DRVPARAMS_BLOCKMODE
149 at ROMVARS.ideVars2+IDEVARS.drvParamsSlave+DRVPARAMS.wFlags, db DISABLE_WRITE_CACHE | FLG_DRVPARAMS_BLOCKMODE
[143]150
[276]151 at ROMVARS.ideVars3+IDEVARS.drvParamsMaster+DRVPARAMS.wFlags, db DISABLE_WRITE_CACHE | FLG_DRVPARAMS_BLOCKMODE
152 at ROMVARS.ideVars3+IDEVARS.drvParamsSlave+DRVPARAMS.wFlags, db DISABLE_WRITE_CACHE | FLG_DRVPARAMS_BLOCKMODE
[175]153
154%ifdef MODULE_SERIAL
155 at ROMVARS.ideVarsSerialAuto+IDEVARS.bDevice, db DEVICE_SERIAL_PORT
[3]156%endif
[181]157%endif
[3]158iend
159
[248]160 ; Libraries, data, Initialization and drive detection
[181]161 %include "AssemblyLibrary.asm"
[248]162 %include "Initialize.asm" ; For BIOS initialization
163 %include "Interrupts.asm" ; For Interrupt initialization
164 %include "RamVars.asm" ; For RAMVARS initialization and access
[285]165 %include "CreateDPT.asm" ; For creating DPTs
166 %include "FindDPT.asm" ; For finding DPTs
[186]167%ifdef MODULE_STRINGS_COMPRESSED
168 %include "StringsCompressed.asm"
169%else
[181]170 %include "Strings.asm" ; For BIOS message strings
[186]171%endif
[181]172 %include "AccessDPT.asm" ; For accessing DPTs
[254]173 %include "BootMenuInfo.asm" ; For creating BOOTMENUINFO structs
[181]174 %include "AtaID.asm" ; For ATA Identify Device information
175 %include "DetectDrives.asm" ; For detecting IDE drives
176 %include "DetectPrint.asm" ; For printing drive detection strings
[248]177
[181]178 ; Boot menu
179 %include "BootMenu.asm" ; For Boot Menu operations
180 %include "BootMenuEvent.asm" ; For menu library event handling
[192]181 ; NOTE: BootMenuPrint needs to come immediately after BootMenuEvent
[258]182 ; so that jump table entries in BootMenuEvent stay within 8-bits
183 %include "BootMenuPrint.asm" ; For printing Boot Menu strings, also includes "BootMenuPrintCfg.asm"
[192]184 %include "BootPrint.asm" ; For printing boot information
[181]185 %include "FloppyDrive.asm" ; Floppy Drive related functions
186 %include "BootSector.asm" ; For loading boot sector
[3]187
[181]188 ; Boot loader
[243]189 %include "Int19h.asm" ; For Int 19h, Boot Loader
[3]190
[181]191 ; For all device types
[192]192 %include "Idepack.asm"
[181]193 %include "Device.asm"
194 %include "Timer.asm" ; For timeout and delay
[155]195
[181]196 ; IDE Device support
[238]197%define IDEDEVICE Ide
198%define ASSEMBLE_SHARED_IDE_DEVICE_FUNCTIONS
199 %include "IOMappedIDE.inc" ; Assembly IDE support for normal I/O mapped controllers
[181]200 %include "IdeCommand.asm"
201 %include "IdeTransfer.asm" ; Must be included after IdeCommand.asm
[192]202 %include "IdeWait.asm"
203 %include "IdeError.asm" ; Must be included after IdeWait.asm
[181]204 %include "IdeDPT.asm"
205 %include "IdeIO.asm"
206 %include "IdeIrq.asm"
[238]207%undef IDEDEVICE
208%undef ASSEMBLE_SHARED_IDE_DEVICE_FUNCTIONS
[155]209
[238]210 ; JR-IDE support
211%ifdef MODULE_JRIDE
212%define IDEDEVICE MemIde
213 %include "MemMappedIDE.inc" ; Assembly IDE support for memory mapped controllers
214 %include "IdeCommand.asm"
215 %include "MemIdeTransfer.asm" ; Must be included after IdeCommand.asm
216 %include "IdeWait.asm"
217 %include "IdeError.asm" ; Must be included after IdeWait.asm
218%undef IDEDEVICE
219%endif
220
221
[181]222%ifdef MODULE_SERIAL ; Serial Port Device support
223 %include "SerialCommand.asm"
224 %include "SerialDPT.asm"
[175]225%endif
[155]226
[181]227 ; INT 13h Hard Disk BIOS functions
228 %include "Int13h.asm" ; For Int 13h, Disk functions
229 %include "AH0h_HReset.asm" ; Required by Int13h_Jump.asm
230 %include "AH1h_HStatus.asm" ; Required by Int13h_Jump.asm
231 %include "AH2h_HRead.asm" ; Required by Int13h_Jump.asm
232 %include "AH3h_HWrite.asm" ; Required by Int13h_Jump.asm
233 %include "AH4h_HVerify.asm" ; Required by Int13h_Jump.asm
234 %include "AH8h_HParams.asm" ; Required by Int13h_Jump.asm
235 %include "AH9h_HInit.asm" ; Required by Int13h_Jump.asm
236 %include "AHCh_HSeek.asm" ; Required by Int13h_Jump.asm
237 %include "AHDh_HReset.asm" ; Required by Int13h_Jump.asm
238 %include "AH10h_HReady.asm" ; Required by Int13h_Jump.asm
239 %include "AH11h_HRecal.asm" ; Required by Int13h_Jump.asm
240 %include "AH15h_HSize.asm" ; Required by Int13h_Jump.asm
241 %include "AH23h_HFeatures.asm" ; Required by Int13h_Jump.asm
242 %include "AH24h_HSetBlocks.asm" ; Required by Int13h_Jump.asm
243 %include "AH25h_HDrvID.asm" ; Required by Int13h_Jump.asm
[221]244 %include "DriveXlate.asm" ; For swapping drive numbers
245 %include "Address.asm" ; For sector address translations
246 %include "Prepare.asm" ; For buffer pointer normalization
[176]247%ifdef MODULE_EBIOS
[181]248 %include "AH42h_ExtendedReadSectors.asm"
249 %include "AH43h_ExtendedWriteSectors.asm"
250 %include "AH44h_ExtendedVerifySectors.asm"
251 %include "AH47h_ExtendedSeek.asm"
252 %include "AH48h_GetExtendedDriveParameters.asm"
[221]253 %include "AH41h_CheckIfExtensionsPresent.asm"
[176]254%endif
Note: See TracBrowser for help on using the repository browser.