source: xtideuniversalbios/tags/XTIDE_Universal_BIOS_v1.1.1/Src/Main.asm@ 309

Last change on this file since 309 was 23, checked in by Tomi Tilli, 14 years ago

Booting is now possible from hard disks if floppy controller reset fails.
AH=00h, Disk Controller Reset now returns error code for the requested drive only.
File size: 8.6 KB
Line 
1; File name : Main.asm
2; Project name : XTIDE Universal BIOS
3; Created date : 28.7.2007
4; Last update : 1.7.2010
5; Author : Tomi Tilli
6; Description : Main file for BIOS. This is the only file that needs
7; to be compiled since other files are included to this
8; file (so no linker needed, Nasm does it all).
9;
10; Tomi Tilli
11; aitotat@gmail.com
12
13ORG 000h ; Code start offset 0000h
14
15; Included .inc files
16%include "emulate.inc" ; Must be included first!
17%include "BiosData.inc" ; For BIOS Data area equates
18%include "Interrupts.inc" ; For interrupt equates
19%include "ATA_ID.inc" ; For ATA Drive Information structs
20%include "IdeRegisters.inc" ; For ATA Registers, flags and commands
21%include "Int13h.inc" ; Equates for INT 13h functions
22%include "CustomDPT.inc" ; For Disk Parameter Table
23%include "CompatibleDPT.inc" ; For standard Disk Parameter Tables
24%include "RomVars.inc" ; For ROMVARS and IDEVARS structs
25%include "RamVars.inc" ; For RAMVARS struct
26%include "BootVars.inc" ; For BOOTVARS and BOOTNFO structs
27%include "BootMenu.inc" ; For Boot Menu
28%include "IDE_8bit.inc" ; For IDE 8-bit data port macros
29
30
31; Section containing code
32SECTION .text
33
34; ROM variables (must start at offset 0)
35CNT_ROM_BLOCKS EQU 16 ; 16 * 512B = 8kB BIOS
36istruc ROMVARS
37 at ROMVARS.wRomSign, dw 0AA55h ; PC ROM signature
38 at ROMVARS.bRomSize, db CNT_ROM_BLOCKS ; ROM size in 512B blocks
39 at ROMVARS.rgbJump, jmp Initialize_FromMainBiosRomSearch
40 at ROMVARS.rgbDate, db "07/01/10" ; Build data (mm/dd/yy)
41 at ROMVARS.rgbSign, db "XTIDE110" ; Signature for flash program
42 at ROMVARS.szTitle
43 db "-=XTIDE Universal BIOS"
44%ifdef USE_AT
45 db " (AT)=-",STOP
46%elifdef USE_186
47 db " (XT+)=-",STOP
48%else
49 db " (XT)=-",STOP
50%endif
51 at ROMVARS.szVersion, db "v1.1.1 (07/01/10)",STOP
52
53;---------------------------;
54; AT Build default settings ;
55;---------------------------;
56%ifdef USE_AT
57 at ROMVARS.wFlags, dw FLG_ROMVARS_FULLMODE | FLG_ROMVARS_DRVXLAT | FLG_ROMVARS_DRVNFO | FLG_ROMVARS_MAXSIZE
58 at ROMVARS.bIdeCnt, db 3 ; Number of supported controllers
59 at ROMVARS.bBootDrv, db 80h ; Boot Menu default drive
60 at ROMVARS.bBootMnuH, db 20 ; Boot Menu maximum height
61 at ROMVARS.bBootDelay, db 30 ; Boot Menu selection delay (secs)
62 at ROMVARS.bBootLdrType, db BOOTLOADER_TYPE_MENU ; Boot loader type
63 at ROMVARS.bMinFddCnt, db 0 ; Do not force minimum number of floppy drives
64 at ROMVARS.bStealSize, db 1 ; Steal 1kB from base memory
65
66 at ROMVARS.ideVars0+IDEVARS.wPort, dw 1F0h ; Controller Command Block base port
67 at ROMVARS.ideVars0+IDEVARS.wPortCtrl, dw 3F0h ; Controller Control Block base port
68 at ROMVARS.ideVars0+IDEVARS.bBusType, db BUS_TYPE_16 ; Bus type
69 at ROMVARS.ideVars0+IDEVARS.bIRQ, db 14 ; IRQ
70 at ROMVARS.ideVars0+IDEVARS.drvParamsMaster+DRVPARAMS.wFlags, db FLG_DRVPARAMS_BLOCKMODE
71 at ROMVARS.ideVars0+IDEVARS.drvParamsSlave+DRVPARAMS.wFlags, db FLG_DRVPARAMS_BLOCKMODE
72
73 at ROMVARS.ideVars1+IDEVARS.wPort, dw 170h ; Controller Command Block base port
74 at ROMVARS.ideVars1+IDEVARS.wPortCtrl, dw 370h ; Controller Control Block base port
75 at ROMVARS.ideVars1+IDEVARS.bBusType, db BUS_TYPE_16 ; Bus type
76 at ROMVARS.ideVars1+IDEVARS.bIRQ, db 15 ; IRQ
77 at ROMVARS.ideVars1+IDEVARS.drvParamsMaster+DRVPARAMS.wFlags, db FLG_DRVPARAMS_BLOCKMODE
78 at ROMVARS.ideVars1+IDEVARS.drvParamsSlave+DRVPARAMS.wFlags, db FLG_DRVPARAMS_BLOCKMODE
79
80 at ROMVARS.ideVars2+IDEVARS.wPort, dw 300h ; Controller Command Block base port
81 at ROMVARS.ideVars2+IDEVARS.wPortCtrl, dw 308h ; Controller Control Block base port
82 at ROMVARS.ideVars2+IDEVARS.bBusType, db BUS_TYPE_8_DUAL ; Bus type
83 at ROMVARS.ideVars2+IDEVARS.bIRQ, db 0 ; IRQ
84 at ROMVARS.ideVars2+IDEVARS.drvParamsMaster+DRVPARAMS.wFlags, db FLG_DRVPARAMS_BLOCKMODE
85 at ROMVARS.ideVars2+IDEVARS.drvParamsSlave+DRVPARAMS.wFlags, db FLG_DRVPARAMS_BLOCKMODE
86%else
87;-----------------------------------;
88; XT and XT+ Build default settings ;
89;-----------------------------------;
90 at ROMVARS.wFlags, dw FLG_ROMVARS_LATE | FLG_ROMVARS_DRVXLAT | FLG_ROMVARS_ROMBOOT | FLG_ROMVARS_DRVNFO | FLG_ROMVARS_MAXSIZE
91 at ROMVARS.bIdeCnt, db 1 ; Number of supported controllers
92 at ROMVARS.bBootDrv, db 80h ; Boot Menu default drive
93 at ROMVARS.bBootMnuH, db 20 ; Boot Menu maximum height
94 at ROMVARS.bBootDelay, db 30 ; Boot Menu selection delay (secs)
95 at ROMVARS.bBootLdrType, db BOOTLOADER_TYPE_MENU ; Boot loader type
96 at ROMVARS.bMinFddCnt, db 1 ; Assume at least 1 floppy drive present if autodetect fails
97 at ROMVARS.bStealSize, db 1 ; Steal 1kB from base memory in full mode
98
99 at ROMVARS.ideVars0+IDEVARS.wPort, dw 300h ; Controller Command Block base port
100 at ROMVARS.ideVars0+IDEVARS.wPortCtrl, dw 308h ; Controller Control Block base port
101 at ROMVARS.ideVars0+IDEVARS.bBusType, db BUS_TYPE_8_DUAL ; Bus type
102 at ROMVARS.ideVars0+IDEVARS.bIRQ, db 0 ; IRQ
103 at ROMVARS.ideVars0+IDEVARS.drvParamsMaster+DRVPARAMS.wFlags, db FLG_DRVPARAMS_BLOCKMODE
104 at ROMVARS.ideVars0+IDEVARS.drvParamsSlave+DRVPARAMS.wFlags, db FLG_DRVPARAMS_BLOCKMODE
105%endif
106iend
107
108
109; Include .asm files (static data and libraries)
110%include "Strings.asm" ; For BIOS message strings
111%include "math.asm" ; For Math library
112%include "string.asm" ; For String library
113%include "print.asm" ; For Print library
114%include "keys.asm" ; For keyboard library (required by menu library)
115%include "menu.asm" ; For menu library
116%include "PrintString.asm" ; Customized printing for this BIOS
117%include "SoftDelay.asm" ; For software delay loops
118
119; Include .asm files (Initialization and drive detection)
120%include "Initialize.asm" ; For BIOS initialization
121%include "RamVars.asm" ; For RAMVARS initialization and access
122%include "CreateDPT.asm" ; For creating DPTs
123%include "FindDPT.asm" ; For finding DPTs
124%include "AccessDPT.asm" ; For accessing DPTs
125%include "CompatibleDPT.asm" ; For creating compatible DPTs
126%include "BootInfo.asm" ; For creating BOOTNFO structs
127%include "AtaID.asm" ; For ATA Identify Device information
128%include "DetectDrives.asm" ; For detecting IDE drives
129%include "DetectPrint.asm" ; For printing drive detection strings
130
131; Include .asm files (boot menu)
132%include "BootVars.asm" ; For accessing BOOTVARS struct
133%include "BootMenu.asm" ; For Boot Menu operations
134%include "BootMenuEvent.asm" ; For menu library event handling
135%include "FloppyDrive.asm" ; Floppy Drive related functions
136%include "BootMenuPrint.asm" ; For printing Boot Menu strings
137%include "BootMenuPrintCfg.asm" ; For printing hard disk configuration
138
139; Include .asm files (general drive accessing)
140%include "DriveXlate.asm" ; For swapping drive numbers
141%include "HAddress.asm" ; For sector address translations
142%include "HCapacity.asm" ; For calculating drive capacity
143%include "HError.asm" ; For error checking
144%include "HPIO.asm" ; For PIO transfers
145%include "HIRQ.asm" ; For IRQ handling
146%include "HStatus.asm" ; For reading hard disk status
147%include "HDrvSel.asm" ; For selecting drive to access
148%include "HCommand.asm" ; For outputting command and parameters
149
150; Include .asm files (Interrupt handlers)
151%include "Int13h.asm" ; For Int 13h, Disk functions
152%include "Int18h.asm" ; For Int 18h, ROM Boot and Boot error
153%include "Int19h.asm" ; For Int 19h, Boot Loader
154%include "Int19hMenu.asm" ; For Int 19h, Boot Loader for Boot Menu
155%include "BootPrint.asm" ; For printing boot information
156
157; Include .asm files (Hard Disk BIOS functions)
158%include "AH0h_HReset.asm" ; Required by Int13h_Jump.asm
159%include "AH1h_HStatus.asm" ; Required by Int13h_Jump.asm
160%include "AH2h_HRead.asm" ; Required by Int13h_Jump.asm
161%include "AH3h_HWrite.asm" ; Required by Int13h_Jump.asm
162%include "AH4h_HVerify.asm" ; Required by Int13h_Jump.asm
163%include "AH5h_HFormat.asm" ; Required by Int13h_Jump.asm
164%include "AH8h_HParams.asm" ; Required by Int13h_Jump.asm
165%include "AH9h_HInit.asm" ; Required by Int13h_Jump.asm
166%include "AHCh_HSeek.asm" ; Required by Int13h_Jump.asm
167%include "AHDh_HReset.asm" ; Required by Int13h_Jump.asm
168%include "AH10h_HReady.asm" ; Required by Int13h_Jump.asm
169%include "AH11h_HRecal.asm" ; Required by Int13h_Jump.asm
170%include "AH14h_HDiag.asm" ; Required by Int13h_Jump.asm
171%include "AH15h_HSize.asm" ; Required by Int13h_Jump.asm
172%include "AH23h_HFeatures.asm" ; Required by Int13h_Jump.asm
173%include "AH24h_HSetBlocks.asm" ; Required by Int13h_Jump.asm
174%include "AH25h_HDrvID.asm" ; Required by Int13h_Jump.asm
175
176
177
178; Fill with zeroes until size is what we want
179times (CNT_ROM_BLOCKS*512)-($-$$) db 0
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