source: xtideuniversalbios/trunk/XTIDE_Universal_BIOS/Src/Main.asm@ 140

Last change on this file since 140 was 140, checked in by Tomi Tilli, 14 years ago

Changes to XTIDE Universal BIOS:

  • INT 13h functions should no longer use Assembly Library.
  • Boot menu now properly displays swapped drive numbers.
File size: 7.6 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
15; Included .inc files
16%include "AssemblyLibrary.inc" ; Assembly Library. Must be included first!
17%include "Interrupts.inc" ; For interrupt equates
18%include "ATA_ID.inc" ; For ATA Drive Information structs
19%include "IdeRegisters.inc" ; For ATA Registers, flags and commands
20%include "Int13h.inc" ; Equates for INT 13h functions
21%include "CustomDPT.inc" ; For Disk Parameter Table
22%include "RomVars.inc" ; For ROMVARS and IDEVARS structs
23%include "RamVars.inc" ; For RAMVARS struct
24%include "BootVars.inc" ; For BOOTVARS and BOOTNFO structs
25%include "BootMenu.inc" ; For Boot Menu
26%include "IDE_8bit.inc" ; For IDE 8-bit data port macros
27
28
29; Section containing code
30SECTION .text
31
32; ROM variables (must start at offset 0)
33CNT_ROM_BLOCKS EQU 16 ; 16 * 512B = 8kB BIOS
34istruc ROMVARS
35 at ROMVARS.wRomSign, dw 0AA55h ; PC ROM signature
36 at ROMVARS.bRomSize, db CNT_ROM_BLOCKS ; ROM size in 512B blocks
37 at ROMVARS.rgbJump, jmp Initialize_FromMainBiosRomSearch
38 at ROMVARS.rgbSign, db "XTIDE120" ; Signature for flash program
39 at ROMVARS.szTitle
40 db "-=XTIDE Universal BIOS"
41%ifdef USE_AT
42 db " (AT)=-",NULL
43%elifdef USE_186
44 db " (XT+)=-",NULL
45%else
46 db " (XT)=-",NULL
47%endif
48 at ROMVARS.szVersion, db "v1.2.0_wip (",__DATE__,")",NULL
49
50;---------------------------;
51; AT Build default settings ;
52;---------------------------;
53%ifdef USE_AT
54 at ROMVARS.wFlags, dw FLG_ROMVARS_FULLMODE | FLG_ROMVARS_DRVXLAT
55 at ROMVARS.wBootTimeout, dw 30 * TICKS_PER_SECOND ; Boot Menu selection timeout
56 at ROMVARS.bIdeCnt, db 3 ; Number of supported controllers
57 at ROMVARS.bBootDrv, db 80h ; Boot Menu default drive
58 at ROMVARS.bMinFddCnt, db 0 ; Do not force minimum number of floppy drives
59 at ROMVARS.bStealSize, db 1 ; Steal 1kB from base memory
60
61 at ROMVARS.ideVars0+IDEVARS.wPort, dw 1F0h ; Controller Command Block base port
62 at ROMVARS.ideVars0+IDEVARS.wPortCtrl, dw 3F0h ; Controller Control Block base port
63 at ROMVARS.ideVars0+IDEVARS.bBusType, db BUS_TYPE_16 ; Bus type
64 at ROMVARS.ideVars0+IDEVARS.bIRQ, db 14 ; IRQ
65 at ROMVARS.ideVars0+IDEVARS.drvParamsMaster+DRVPARAMS.wFlags, db FLG_DRVPARAMS_BLOCKMODE
66 at ROMVARS.ideVars0+IDEVARS.drvParamsSlave+DRVPARAMS.wFlags, db FLG_DRVPARAMS_BLOCKMODE
67
68 at ROMVARS.ideVars1+IDEVARS.wPort, dw 170h ; Controller Command Block base port
69 at ROMVARS.ideVars1+IDEVARS.wPortCtrl, dw 370h ; Controller Control Block base port
70 at ROMVARS.ideVars1+IDEVARS.bBusType, db BUS_TYPE_16 ; Bus type
71 at ROMVARS.ideVars1+IDEVARS.bIRQ, db 15 ; IRQ
72 at ROMVARS.ideVars1+IDEVARS.drvParamsMaster+DRVPARAMS.wFlags, db FLG_DRVPARAMS_BLOCKMODE
73 at ROMVARS.ideVars1+IDEVARS.drvParamsSlave+DRVPARAMS.wFlags, db FLG_DRVPARAMS_BLOCKMODE
74
75 at ROMVARS.ideVars2+IDEVARS.wPort, dw 300h ; Controller Command Block base port
76 at ROMVARS.ideVars2+IDEVARS.wPortCtrl, dw 308h ; Controller Control Block base port
77 at ROMVARS.ideVars2+IDEVARS.bBusType, db BUS_TYPE_8_DUAL ; Bus type
78 at ROMVARS.ideVars2+IDEVARS.bIRQ, db 0 ; IRQ
79 at ROMVARS.ideVars2+IDEVARS.drvParamsMaster+DRVPARAMS.wFlags, db FLG_DRVPARAMS_BLOCKMODE
80 at ROMVARS.ideVars2+IDEVARS.drvParamsSlave+DRVPARAMS.wFlags, db FLG_DRVPARAMS_BLOCKMODE
81%else
82;-----------------------------------;
83; XT and XT+ Build default settings ;
84;-----------------------------------;
85 at ROMVARS.wFlags, dw FLG_ROMVARS_DRVXLAT
86 at ROMVARS.wBootTimeout, dw 30 * TICKS_PER_SECOND ; Boot Menu selection timeout
87 at ROMVARS.bIdeCnt, db 1 ; Number of supported controllers
88 at ROMVARS.bBootDrv, db 80h ; Boot Menu default drive
89 at ROMVARS.bMinFddCnt, db 1 ; Assume at least 1 floppy drive present if autodetect fails
90 at ROMVARS.bStealSize, db 1 ; Steal 1kB from base memory in full mode
91
92 at ROMVARS.ideVars0+IDEVARS.wPort, dw 300h ; Controller Command Block base port
93 at ROMVARS.ideVars0+IDEVARS.wPortCtrl, dw 308h ; Controller Control Block base port
94 at ROMVARS.ideVars0+IDEVARS.bBusType, db BUS_TYPE_8_DUAL ; Bus type
95 at ROMVARS.ideVars0+IDEVARS.bIRQ, db 0 ; IRQ
96 at ROMVARS.ideVars0+IDEVARS.drvParamsMaster+DRVPARAMS.wFlags, db FLG_DRVPARAMS_BLOCKMODE
97 at ROMVARS.ideVars0+IDEVARS.drvParamsSlave+DRVPARAMS.wFlags, db FLG_DRVPARAMS_BLOCKMODE
98%endif
99iend
100
101
102; Include .asm files (static data and libraries)
103%include "AssemblyLibrary.asm"
104%include "Strings.asm" ; For BIOS message strings
105
106; Include .asm files (Initialization and drive detection)
107%include "Initialize.asm" ; For BIOS initialization
108%include "Interrupts.asm" ; For Interrupt initialization
109%include "RamVars.asm" ; For RAMVARS initialization and access
110%include "CreateDPT.asm" ; For creating DPTs
111%include "FindDPT.asm" ; For finding DPTs
112%include "AccessDPT.asm" ; For accessing DPTs
113%include "BootInfo.asm" ; For creating BOOTNFO structs
114%include "AtaID.asm" ; For ATA Identify Device information
115%include "DetectDrives.asm" ; For detecting IDE drives
116%include "DetectPrint.asm" ; For printing drive detection strings
117
118; Include .asm files (boot menu)
119%include "BootMenu.asm" ; For Boot Menu operations
120%include "BootMenuEvent.asm" ; For menu library event handling
121%include "FloppyDrive.asm" ; Floppy Drive related functions
122%include "BootSector.asm" ; For loading boot sector
123%include "BootPrint.asm" ; For printing boot information
124%include "BootMenuPrint.asm" ; For printing Boot Menu strings
125%include "BootMenuPrintCfg.asm" ; For printing hard disk configuration
126
127; Include .asm files (general drive accessing)
128%include "DriveXlate.asm" ; For swapping drive numbers
129%include "HAddress.asm" ; For sector address translations
130%include "HCapacity.asm" ; For calculating drive capacity
131%include "HError.asm" ; For error checking
132%include "HPIO.asm" ; For PIO transfers
133%include "HIRQ.asm" ; For IRQ handling
134%include "HStatus.asm" ; For reading hard disk status
135%include "HDrvSel.asm" ; For selecting drive to access
136%include "HCommand.asm" ; For outputting command and parameters
137%include "HTimer.asm" ; For timeout and delay
138
139; Include .asm files (Interrupt handlers)
140%include "Int13h.asm" ; For Int 13h, Disk functions
141%ifndef USE_AT
142 %include "Int19hLate.asm" ; For late initialization
143%endif
144%include "Int19hMenu.asm" ; For Int 19h, Boot Loader for Boot Menu
145
146; Include .asm files (Hard Disk BIOS functions)
147%include "AH0h_HReset.asm" ; Required by Int13h_Jump.asm
148%include "AH1h_HStatus.asm" ; Required by Int13h_Jump.asm
149%include "AH2h_HRead.asm" ; Required by Int13h_Jump.asm
150%include "AH3h_HWrite.asm" ; Required by Int13h_Jump.asm
151%include "AH4h_HVerify.asm" ; Required by Int13h_Jump.asm
152%include "AH8h_HParams.asm" ; Required by Int13h_Jump.asm
153%include "AH9h_HInit.asm" ; Required by Int13h_Jump.asm
154%include "AHCh_HSeek.asm" ; Required by Int13h_Jump.asm
155%include "AHDh_HReset.asm" ; Required by Int13h_Jump.asm
156%include "AH10h_HReady.asm" ; Required by Int13h_Jump.asm
157%include "AH11h_HRecal.asm" ; Required by Int13h_Jump.asm
158%include "AH15h_HSize.asm" ; Required by Int13h_Jump.asm
159%include "AH23h_HFeatures.asm" ; Required by Int13h_Jump.asm
160%include "AH24h_HSetBlocks.asm" ; Required by Int13h_Jump.asm
161%include "AH25h_HDrvID.asm" ; Required by Int13h_Jump.asm
162
163
164
165; Fill with zeroes until size is what we want
166;times (CNT_ROM_BLOCKS*512)-($-$$) db 0
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