source: xtideuniversalbios/trunk/XTIDE_Universal_BIOS/Src/Main.asm@ 94

Last change on this file since 94 was 93, checked in by Tomi Tilli, 14 years ago

Changes to XTIDE Universal BIOS:

  • Diagnostic cylinder can no longer be reserved.
File size: 7.9 KB
Line 
1; Project name : XTIDE Universal BIOS
2; Authors : Tomi Tilli
3; : aitotat@gmail.com
4; :
5; : Krister Nordvall
6; : krille_n_@hotmail.com
7; :
8; Description : Main file for BIOS. This is the only file that needs
9; to be compiled since other files are included to this
10; file (so no linker needed, Nasm does it all).
11
12ORG 000h ; Code start offset 0000h
13
14; Included .inc files
15%include "AssemblyLibrary.inc" ; Assembly Library. Must be included first!
16%include "macros.inc" ; General purpose macros
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.rgbSign, db "XTIDE120" ; Signature for flash program
41 at ROMVARS.szTitle
42 db "-=XTIDE Universal BIOS"
43%ifdef USE_AT
44 db " (AT)=-",NULL
45%elifdef USE_186
46 db " (XT+)=-",NULL
47%else
48 db " (XT)=-",NULL
49%endif
50 at ROMVARS.szVersion, db "v1.2.0_wip (01/27/11)",NULL ; mm/dd/yy
51
52;---------------------------;
53; AT Build default settings ;
54;---------------------------;
55%ifdef USE_AT
56 at ROMVARS.wFlags, dw FLG_ROMVARS_FULLMODE | FLG_ROMVARS_DRVXLAT
57 at ROMVARS.bIdeCnt, db 3 ; Number of supported controllers
58 at ROMVARS.bBootDrv, db 80h ; Boot Menu default drive
59 at ROMVARS.bBootDelay, db 30 ; Boot Menu selection delay (secs)
60 at ROMVARS.bMinFddCnt, db 0 ; Do not force minimum number of floppy drives
61 at ROMVARS.bStealSize, db 1 ; Steal 1kB from base memory
62
63 at ROMVARS.ideVars0+IDEVARS.wPort, dw 1F0h ; Controller Command Block base port
64 at ROMVARS.ideVars0+IDEVARS.wPortCtrl, dw 3F0h ; Controller Control Block base port
65 at ROMVARS.ideVars0+IDEVARS.bBusType, db BUS_TYPE_16 ; Bus type
66 at ROMVARS.ideVars0+IDEVARS.bIRQ, db 14 ; IRQ
67 at ROMVARS.ideVars0+IDEVARS.drvParamsMaster+DRVPARAMS.wFlags, db FLG_DRVPARAMS_BLOCKMODE
68 at ROMVARS.ideVars0+IDEVARS.drvParamsSlave+DRVPARAMS.wFlags, db FLG_DRVPARAMS_BLOCKMODE
69
70 at ROMVARS.ideVars1+IDEVARS.wPort, dw 170h ; Controller Command Block base port
71 at ROMVARS.ideVars1+IDEVARS.wPortCtrl, dw 370h ; Controller Control Block base port
72 at ROMVARS.ideVars1+IDEVARS.bBusType, db BUS_TYPE_16 ; Bus type
73 at ROMVARS.ideVars1+IDEVARS.bIRQ, db 15 ; IRQ
74 at ROMVARS.ideVars1+IDEVARS.drvParamsMaster+DRVPARAMS.wFlags, db FLG_DRVPARAMS_BLOCKMODE
75 at ROMVARS.ideVars1+IDEVARS.drvParamsSlave+DRVPARAMS.wFlags, db FLG_DRVPARAMS_BLOCKMODE
76
77 at ROMVARS.ideVars2+IDEVARS.wPort, dw 300h ; Controller Command Block base port
78 at ROMVARS.ideVars2+IDEVARS.wPortCtrl, dw 308h ; Controller Control Block base port
79 at ROMVARS.ideVars2+IDEVARS.bBusType, db BUS_TYPE_8_DUAL ; Bus type
80 at ROMVARS.ideVars2+IDEVARS.bIRQ, db 0 ; IRQ
81 at ROMVARS.ideVars2+IDEVARS.drvParamsMaster+DRVPARAMS.wFlags, db FLG_DRVPARAMS_BLOCKMODE
82 at ROMVARS.ideVars2+IDEVARS.drvParamsSlave+DRVPARAMS.wFlags, db FLG_DRVPARAMS_BLOCKMODE
83%else
84;-----------------------------------;
85; XT and XT+ Build default settings ;
86;-----------------------------------;
87 at ROMVARS.wFlags, dw FLG_ROMVARS_DRVXLAT
88 at ROMVARS.bIdeCnt, db 1 ; Number of supported controllers
89 at ROMVARS.bBootDrv, db 80h ; Boot Menu default drive
90 at ROMVARS.bBootDelay, db 30 ; Boot Menu selection delay (secs)
91 at ROMVARS.bMinFddCnt, db 1 ; Assume at least 1 floppy drive present if autodetect fails
92 at ROMVARS.bStealSize, db 1 ; Steal 1kB from base memory in full mode
93
94 at ROMVARS.ideVars0+IDEVARS.wPort, dw 300h ; Controller Command Block base port
95 at ROMVARS.ideVars0+IDEVARS.wPortCtrl, dw 308h ; Controller Control Block base port
96 at ROMVARS.ideVars0+IDEVARS.bBusType, db BUS_TYPE_8_DUAL ; Bus type
97 at ROMVARS.ideVars0+IDEVARS.bIRQ, db 0 ; IRQ
98 at ROMVARS.ideVars0+IDEVARS.drvParamsMaster+DRVPARAMS.wFlags, db FLG_DRVPARAMS_BLOCKMODE
99 at ROMVARS.ideVars0+IDEVARS.drvParamsSlave+DRVPARAMS.wFlags, db FLG_DRVPARAMS_BLOCKMODE
100%endif
101iend
102
103
104; Include .asm files (static data and libraries)
105%include "AssemblyLibrary.asm"
106%include "Strings.asm" ; For BIOS message strings
107
108; Include .asm files (Initialization and drive detection)
109%include "Initialize.asm" ; For BIOS initialization
110%include "Interrupts.asm" ; For Interrupt initialization
111%include "RamVars.asm" ; For RAMVARS initialization and access
112%include "CreateDPT.asm" ; For creating DPTs
113%include "FindDPT.asm" ; For finding DPTs
114%include "AccessDPT.asm" ; For accessing DPTs
115%include "CompatibleDPT.asm" ; For creating compatible DPTs
116%include "BootInfo.asm" ; For creating BOOTNFO structs
117%include "AtaID.asm" ; For ATA Identify Device information
118%include "DetectDrives.asm" ; For detecting IDE drives
119%include "DetectPrint.asm" ; For printing drive detection strings
120
121; Include .asm files (boot menu)
122%include "BootVars.asm" ; For accessing BOOTVARS struct
123%include "BootMenu.asm" ; For Boot Menu operations
124%include "BootMenuEvent.asm" ; For menu library event handling
125%include "FloppyDrive.asm" ; Floppy Drive related functions
126%include "BootMenuPrint.asm" ; For printing Boot Menu strings
127%include "BootMenuPrintCfg.asm" ; For printing hard disk configuration
128
129; Include .asm files (general drive accessing)
130%include "DriveXlate.asm" ; For swapping drive numbers
131%include "HAddress.asm" ; For sector address translations
132%include "HCapacity.asm" ; For calculating drive capacity
133%include "HError.asm" ; For error checking
134%include "HPIO.asm" ; For PIO transfers
135%include "HIRQ.asm" ; For IRQ handling
136%include "HStatus.asm" ; For reading hard disk status
137%include "HDrvSel.asm" ; For selecting drive to access
138%include "HCommand.asm" ; For outputting command and parameters
139
140; Include .asm files (Interrupt handlers)
141%include "Int13h.asm" ; For Int 13h, Disk functions
142%include "Int19h.asm" ; For Int 19h, Boot Loader
143%ifndef USE_AT
144 %include "Int19hLate.asm" ; For late initialization
145%endif
146%include "Int19hMenu.asm" ; For Int 19h, Boot Loader for Boot Menu
147%include "BootPrint.asm" ; For printing boot information
148
149; Include .asm files (Hard Disk BIOS functions)
150%include "AH0h_HReset.asm" ; Required by Int13h_Jump.asm
151%include "AH1h_HStatus.asm" ; Required by Int13h_Jump.asm
152%include "AH2h_HRead.asm" ; Required by Int13h_Jump.asm
153%include "AH3h_HWrite.asm" ; Required by Int13h_Jump.asm
154%include "AH4h_HVerify.asm" ; Required by Int13h_Jump.asm
155%include "AH8h_HParams.asm" ; Required by Int13h_Jump.asm
156%include "AH9h_HInit.asm" ; Required by Int13h_Jump.asm
157%include "AHCh_HSeek.asm" ; Required by Int13h_Jump.asm
158%include "AHDh_HReset.asm" ; Required by Int13h_Jump.asm
159%include "AH10h_HReady.asm" ; Required by Int13h_Jump.asm
160%include "AH11h_HRecal.asm" ; Required by Int13h_Jump.asm
161%include "AH15h_HSize.asm" ; Required by Int13h_Jump.asm
162%include "AH23h_HFeatures.asm" ; Required by Int13h_Jump.asm
163%include "AH24h_HSetBlocks.asm" ; Required by Int13h_Jump.asm
164%include "AH25h_HDrvID.asm" ; Required by Int13h_Jump.asm
165
166
167
168; Fill with zeroes until size is what we want
169;times (CNT_ROM_BLOCKS*512)-($-$$) db 0
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