119 lines
2.8 KiB
NASM
119 lines
2.8 KiB
NASM
IDEAL
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MODEL large
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P386
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EXTRN C l1:word, C l2:word, C l3:word, C l4:word, C k1:word, C k2:word, C k3:word, C k4:word
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EXTRN C m1:word, C m2:word, C m3:word, C m4:word, C n1:word, C n2:word, C n3:word, C n4:word
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SEGMENT poro para private 'CODE'
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ASSUME cs:poro
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PUBLIC C plzline, C setplzparas, C psini, C lsini4, C lsini16
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LABEL psini BYTE
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INCLUDE 'psini.inc'
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; db 16384 dup(?)
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LABEL lsini4 WORD
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INCLUDE 'lsini4.inc'
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; db 16384 dup(?)
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LABEL lsini16 WORD
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INCLUDE 'lsini16.inc'
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; db 16384 dup(?)
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PROC C plzline
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ARG y1:word, vseg:word
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push ds es si di
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push [vseg]
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pop es
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push cs
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pop ds
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mov si, [y1]
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; and si, 0fffeh
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shl si, 1d
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mov di, si
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IRP ccc, <3,2,1,0,7,6,5,4,11,10,9,8,15,14,13,12,19,18,17,16,23,22,21,20,27,26,25,24,31,30,29,28,35,34,33,32,39,38,37,36,43,42,41,40,47,46,45,44,51,50,49,48,55,54,53,52,59,58,57,56,63,62,61,60,67,66,65,64,71,70,69,68,75,74,73,72,79,78,77,76,83,82,81,80>
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IF (ccc AND 1) EQ 1
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lc2_&ccc=$+2
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mov bx, [ds:si+0c200h]
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lc1_&ccc=$+2
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mov ah, [ds:ccc*32 + bx + 0c100h]
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lc4_&ccc=$+2
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mov bx, [ds:ccc*64 + di + 0c400h]
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lc3_&ccc=$+2
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add ah, [ds:bx + di + 0c300h]
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ELSE
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lc2_&ccc=$+2
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mov bx, [ds:si+0c200h]
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lc1_&ccc=$+2
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mov al, [ds:ccc*32 + bx + 0c100h]
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lc4_&ccc=$+2
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mov bx, [ds:ccc*64 + di + 0c400h]
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lc3_&ccc=$+2
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add al, [ds:bx + di + 0c300h]
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ENDIF
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IF (ccc AND 3) EQ 2
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shl eax, 16d
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ENDIF
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IF (ccc AND 3) EQ 0
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mov [es:ccc], eax
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ENDIF
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ENDM
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pop di si es ds
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ret
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ENDP
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PROC C setplzparas
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ARG c1:word, c2:word, c3:word, c4:word
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IRP ccc, <0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83>
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mov ax, [c1]
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add ax, OFFSET psini+ccc*8
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mov [word (cs:lc1_&ccc)], ax
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mov ax, [c2]
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shl ax, 1d
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add ax, OFFSET lsini16-ccc*8+80*8
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mov [word (cs:lc2_&ccc)], ax
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mov ax, [c3]
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add ax, OFFSET psini-ccc*4+80*4
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mov [word (cs:lc3_&ccc)], ax
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mov ax, [c4]
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shl ax, 1d
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add ax, OFFSET lsini4+ccc*32
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mov [word (cs:lc4_&ccc)], ax
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ENDM
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ret
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ENDP
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PUBLIC C set_plzstart
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PROC C set_plzstart
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ARG start:word
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mov dx, 3d4h
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mov al, 18h ; linecompare
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mov ah, [Byte start]
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out dx, ax
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mov al, 07h
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mov ah, [Byte start+1]
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shl ah, 4d
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and ah, 10h
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or ah, 0fh
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out dx, ax ; 8th bit
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ret
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ENDP
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ENDS
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END
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