Cleaned up DMA port handling and minor tweaks
This commit is contained in:
Jeff Parsons
jeffpar
parent
b063387357
commit
158cc65da3
16 changed files with 453 additions and 175 deletions
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@ -1,6 +1,6 @@
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;
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; ROM BIOS for Compaq DeskPro 386-16
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; Rev J.4, from parts 109592-001 and 109591-001, dated 1988-Jan-28
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; Rev J.4, from parts 109592-001 and 109591-001, dated '01/28/88'
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; (C)Copyright COMPAQ Computer Corporation 1982,83,84,85,86,87-All rights reserved.
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;
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; Listing produced by NDISASM, 2015-Apr-04
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@ -2287,7 +2287,7 @@ x9311: cmp ah,al ; 00009311 3AE0 ':.'
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db 0x0D,0x0A,'Non-System disk or disk error',0x0D,0x0A,'replace and strike any key when ready',0x0D,0x0A,'$',0x0D,0x0A,'602-Diskette Boot Record Error',0x0D,0x0A,'$'
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mov bx,0x2 ; 00009380 BB0200 '...'
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x9380: mov bx,0x2 ; 00009380 BB0200 '...'
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mov cx,0xfde8 ; 00009383 B9E8FD '...'
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x9386: mov al,0x80 ; 00009386 B080 '..'
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out 0x70,al ; 00009388 E670 '.p'
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@ -2968,6 +2968,9 @@ x9bed: mov al,ah ; 00009BED 8AC4 '..'
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loop x9bed ; 00009BF6 E2F5 '..'
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jmp bp ; 00009BF8 FFE5 '..'
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;
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; Clear the screen (DS=F000, BX=BA77 for CGA or BA86 for Mono)
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;
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x9bfa: mov ax,0x720 ; 00009BFA B82007 '. .'
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mov es,[bx+0x6] ; 00009BFD 8E4706 '.G.'
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xor di,di ; 00009C00 33FF '3.'
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@ -4619,7 +4622,7 @@ xa9e9: cs rep movsw ; 0000A9E9 F32EA5 '...'
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and byte [0x87],0xfb ; 0000AA17 80268700FB '.&...'
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jmp short xaa2f ; 0000AA1C EB11 '..'
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xaa1e: mov bx,0xba77 ; 0000AA1E BB77BA '.w.'
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xaa1e: mov bx,xba77 ; 0000AA1E BB77BA '.w.'
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mov es,[cs:bx+0x6] ; 0000AA21 2E8E4706 '..G.'
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call x9e1c ; 0000AA25 E8F4F3 '...'
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jz xaa2f ; 0000AA28 7405 't.'
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@ -4744,7 +4747,7 @@ xaac9: and byte [0x10],0xcf ; 0000AAC9 80261000CF '.&...'
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call xc791 ; 0000AB1B E8731C '.s.'
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xab1e: ret ; 0000AB1E C3 '.'
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xab1f: mov dx,0xba77 ; 0000AB1F BA77BA '.w.'
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xab1f: mov dx,xba77 ; 0000AB1F BA77BA '.w.'
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mov bx,dx ; 0000AB22 8BDA '..'
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add bx,byte +0xf ; 0000AB24 83C30F '...'
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or al,al ; 0000AB27 0AC0 0x0A,'.'
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@ -4807,7 +4810,7 @@ xab96: mov al,0x58 ; 0000AB96 B058 '.X'
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out 0x84,al ; 0000AB98 E684 '..'
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push cs ; 0000AB9A 0E '.'
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pop ds ; 0000AB9B 1F '.'
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mov bx,0xba77 ; 0000AB9C BB77BA '.w.'
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mov bx,xba77 ; 0000AB9C BB77BA '.w.'
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xab9f: mov al,0x59 ; 0000AB9F B059 '.Y'
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out 0x84,al ; 0000ABA1 E684 '..'
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mov es,[bx+0x6] ; 0000ABA3 8E4706 '.G.'
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@ -6103,23 +6106,30 @@ xb68a: stc ; 0000B68A F9 '.'
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db ' 605-Diskette Drive Type Error-(Run Setup)',0x0D,0x0A
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db ' Insert DIAGNOSTIC diskette in Drive A:',0x0D,0x0A
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db 0xD8 ; 0000BA77 D8
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add dx,sp ; 0000BA78 03D4 '..'
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sub [si+0xf0],si ; 0000BA7A 29B4F000 ')...'
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mov ax,0x6000 ; 0000BA7E B80060 '..`'
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mov dh,[bx+0x1e] ; 0000BA81 8AB71E00 '....'
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inc ax ; 0000BA85 40 '@'
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mov ax,0xb403 ; 0000BA86 B803B4 '...'
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sub sp,dx ; 0000BA89 29D4 ').'
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lock add [bx+si+0x6000],dh ; 0000BA8B F000B00060 '....`'
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imul si,[bx+0x21],word 0xbd10; 0000BA90 69B7210010BD 'i.!...'
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wait ; 0000BA96 9B '.'
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mov dx,0xe5e9 ; 0000BA97 BAE9E5 '...'
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fdiv dword [bx+si+0xe68e] ; 0000BA9A D8B08EE6 '....'
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jo xbad3 ; 0000BA9E 7033 'p3'
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shl dh,0x71 ; 0000BAA0 C0E671 '..q'
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mov al,0x40 ; 0000BAA3 B040 '.@'
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out 0x86,al ; 0000BAA5 E686 '..'
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;
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; Video card data
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;
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xba77: dw 0x03D8 ; 0000BA77 D803 ; +0x00: I/O address of Mode Select Register (CGA)
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db 0xD4,0x29,0xB4,0xF0 ; 0000BA79 D429B4F0
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dw 0xB800 ; 0000BA7D 00B8 ; +0x06: real-mode segment of frame buffer
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db 0x00,0x60,0x8A,0xB7 ; 0000BA7F 00608AB7
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db 0x1E,0x00,0x40 ; 0000BA83 1E0040
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xba86: dw 0x03B8 ; 0000BA86 B803 ; +0x00: I/O address of Mode Select Register (Mono)
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db 0xB4,0x29,0xD4,0xF0 ; 0000BA88 B429D4F0
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dw 0xB000 ; 0000BA8C 00B0 ; +0x06: real-mode segment of frame buffer
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db 0x00,0x60,0x69,0xB7 ; 0000BA8E 006069B7
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db 0x21,0x00,0x10 ; 0000BA92 210010
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mov bp,0xba9b ; 0000BA95 BD9BBA
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jmp x9380 ; 0000BA98 E9E5D8
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mov al,0x8e ; 0000BA9B B08E
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out 0x70,al ; 0000BA9D E670
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xor ax,ax ; 0000BA9F 33C0
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out 0x71,al ; 0000BAA1 E671
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mov al,0x40 ; 0000BAA3 B040
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out 0x86,al ; 0000BAA5 E686
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xbaa7: cli ; 0000BAA7 FA '.'
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mov al,0xf ; 0000BAA8 B00F '..'
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@ -9921,11 +9931,15 @@ xd9db: mov ax,0x40 ; 0000D9DB B84000 '.@.'
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or bx,bx ; 0000D9ED 0BDB '..'
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jnz xd9f4 ; 0000D9EF 7503 'u.'
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jmp xda8c ; 0000D9F1 E99800 '...'
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;
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; At checkpoint 0x6B, the conventional+extended memory test has been completed, and you should
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; see a total at the top of the screen (eg, "01792 KB OK").
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;
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xd9f4: mov al,0x6b ; 0000D9F4 B06B '.k'
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out 0x84,al ; 0000D9F6 E684 '..'
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mov ax,0x1c00 ; 0000D9F8 B8001C '...'
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mov ds,ax ; 0000D9FB 8ED8 '..'
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test word [0x64],0x1 ; 0000D9FD F70664000100 '..d...'
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jz xda1b ; 0000DA03 7416 't.'
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call xc786 ; 0000DA05 E87EED '.~.'
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@ -9935,6 +9949,7 @@ xd9f4: mov al,0x6b ; 0000D9F4 B06B '.k'
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mov cl,[0x69] ; 0000DA10 8A0E6900 '..i.'
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mov dx,[0x67] ; 0000DA14 8B166700 '..g.'
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call x822d ; 0000DA18 E812A8 '...'
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xda1b: test word [0x64],0x4 ; 0000DA1B F70664000400 '..d...'
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jz xda39 ; 0000DA21 7416 't.'
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call xc786 ; 0000DA23 E860ED '.`.'
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@ -9944,6 +9959,7 @@ xda1b: test word [0x64],0x4 ; 0000DA1B F70664000400 '..d...'
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mov cl,[0x6d] ; 0000DA2E 8A0E6D00 '..m.'
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mov dx,[0x6b] ; 0000DA32 8B166B00 '..k.'
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call x8242 ; 0000DA36 E809A8 '...'
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xda39: test word [0x64],0x2 ; 0000DA39 F70664000200 '..d...'
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jz xda57 ; 0000DA3F 7416 't.'
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call xc786 ; 0000DA41 E842ED '.B.'
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@ -9952,7 +9968,13 @@ xda39: test word [0x64],0x2 ; 0000DA39 F70664000200 '..d...'
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mov si,cx ; 0000DA4A 8BF1 '..'
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mov cl,[0x71] ; 0000DA4C 8A0E7100 '..q.'
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mov dx,[0x6f] ; 0000DA50 8B166F00 '..o.'
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;
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; During the next call, the following additional text may be displayed on the screen:
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;
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; F00000 02 201-Memory Error
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;
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call x822d ; 0000DA54 E8D6A7 '...'
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xda57: test word [0x64],0x8 ; 0000DA57 F70664000800 '..d...'
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jz xda75 ; 0000DA5D 7416 't.'
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call xc786 ; 0000DA5F E824ED '.$.'
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@ -9961,7 +9983,13 @@ xda57: test word [0x64],0x8 ; 0000DA57 F70664000800 '..d...'
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mov si,cx ; 0000DA68 8BF1 '..'
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mov cl,[0x75] ; 0000DA6A 8A0E7500 '..u.'
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mov dx,[0x73] ; 0000DA6E 8B167300 '..s.'
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;
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; During the next call, the following additional text may be displayed on the screen:
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;
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; F00000 FF 203-Memory Address Error
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;
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call x8242 ; 0000DA72 E8CDA7 '...'
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xda75: test word [0x64],0x10 ; 0000DA75 F70664001000 '..d...'
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jz xda8c ; 0000DA7B 740F 't.'
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call xc786 ; 0000DA7D E806ED '...'
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@ -9969,6 +9997,7 @@ xda75: test word [0x64],0x10 ; 0000DA75 F70664001000 '..d...'
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mov bx,0xb68c ; 0000DA83 BB8CB6 '...'
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mov cx,0x1a ; 0000DA86 B91A00 '...'
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call xc745 ; 0000DA89 E8B9EC '...'
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xda8c: test word [0x64],0xffff ; 0000DA8C F7066400FFFF '..d...'
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jz xdaac ; 0000DA92 7418 't.'
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call xc786 ; 0000DA94 E8EFEC '...'
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@ -14293,6 +14322,7 @@ xffb3: pop ds ; 0000FFB3 1F '.'
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jmp 0xf000:reset ; 0000FFF0 EA05F900F0
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db ' 01/28/88'
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db 0x20
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db '01/28/88'
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db 0xFC ; 0000FFFE FC
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db 0x98 ; 0000FFFF 98
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