299 lines
4.8 KiB
NASM
299 lines
4.8 KiB
NASM
.model tiny
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.486
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smart
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.code
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org 0h
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start:
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jmp tsr
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drv db 'JOYSTICK',0
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Tsr:
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cli
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cmp ax,1234h
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jne nomore
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mov ax,4321h
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jmp itsok
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nomore:
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push bx
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cmp byte ptr cs:isact,1
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je nottest
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mov cs:isact,1
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jmp react
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mov bl,ah
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xor bh,bh
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shl bx,1
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mov bx,cs:[bx].tables
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mov cs:current,bx
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pop bx
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call cs:current
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itsok:
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jnc noerror
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push bp
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mov bp,sp
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or byte ptr [bp+6],1b
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pop bp
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mov ax,cs
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shl eax,16
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mov ax,cs:current
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jmp endofint
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noerror:
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push bp
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mov bp,sp
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and byte ptr [bp+6],0FEh
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pop bp
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endofint:
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mov cs:isact,0
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sti
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iret
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nottest:
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pop bx
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jmp endofint
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current dw 0
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tables dw 0;detectjoystick
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;dw getjoystick
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;dw getjoystickscreen
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;dw configjoystick
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isact db 0
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;envoie en bx,cx les coordonn‚es et en dl les boutons
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getjoystick:
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push ax cx
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mov bx,cs:rx
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mov cx,cs:ry
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mov al,cs:button
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not al
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mov cl,4
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shr al,cl
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mov dl,al
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pop cx ax
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ret
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;envoie en di les coordonn‚es ecran et en dl les boutons
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getjoystickscreen:
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push ax cx
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mov di,cs:xy
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mov al,cs:button
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not al
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mov cl,4
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shr al,cl
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mov dl,al
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pop cx ax
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ret
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db 'button'
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Button db 0
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db 'rx'
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rx dw 0
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db 'ry'
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ry dw 0
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db 'vx'
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VX db 0
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db 'vy'
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VY db 0
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db 'x'
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X dw 7FFFh
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db 'y'
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Y dw 7FFFh
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speed db 6
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spherex db 0
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spherey db 0
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db 'count'
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count db 0
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db 'error'
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error db 0
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xy dw 0
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old db 0
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calibrate db 0
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db 'ticks'
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ticks dw 0
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db 'state'
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state db 0
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db 'connard'
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connard db 1
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connard2 db 1
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;Gestionnaire de joystick
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react:
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push ax bx cx dx si di bp ds es
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push cs
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pop ds
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mov dx,201h
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cmp error, 1
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je gest1
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cmp count,1
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je gest1
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cmp count,2
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je gest2
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gest1:
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mov error,0
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mov count,2
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call getticks
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mov ticks,ax
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out dx,al
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in al,dx
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and al,00000011b
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mov state,al
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jmp endgest
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gest2:
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not connard
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call getticks
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sub ax,ticks
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cmp ax,1FF0h
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jb nofinish
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mov error,1
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jmp endgest
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nofinish:
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mov bx,ax
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in al,dx
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and al,00000011b
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cmp state,al
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je endgest
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xchg state,al
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xor al,state
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mov cl,4
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or bx,bx
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js noadj
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shr bx,cl
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noadj:
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test al,1
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je isy
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mov VX,bl
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jmp wasx
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isy:
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test al,2
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je endgest
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mov VY,bl
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wasx:
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mov connard2,0fh
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mov count,1
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endgest:
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in al,dx
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not al
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mov cl,4
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shr al,cl
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mov button,al
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push cs
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pop es
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mov di,offset infos
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mov ah,34
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int 47h
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mov cl,speed
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movsx bx,VY
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shl bx,cl
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cmp spherey,0
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jne nolimity
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xor ah,ah
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mov al,[di]
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cmp byte ptr [di+7],4
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jbe text4
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shl ax,3
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text4:
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dec ax
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cmp bx,0
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jg decy
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cmp ry,ax
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jae noaddy
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jmp nolimity
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decy:
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cmp ry,0
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je noaddy
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nolimity:
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sub y,bx
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noaddy:
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movsx bx,VX
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shl bx,cl
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cmp spherex,0
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jne nolimitx
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xor ah,ah
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mov al,[di+1]
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cmp byte ptr [di+7],4
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jbe text5
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shl ax,3
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text5:
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dec ax
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cmp bx,0
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jl decx
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cmp rx,ax
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jae noaddx
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jmp nolimitx
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decx:
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cmp rx,0
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je noaddx
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nolimitx:
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add x,bx
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noaddx:
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mov ax,x
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mov bx,0FFFFh
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xor ch,ch
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mov cl,[di+1]
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cmp byte ptr [di+7],4
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jbe text1
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shl cx,3
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text1:
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mul cx
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div bx
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mov rx,ax
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mov ax,y
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xor ch,ch
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mov cl,[di]
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cmp byte ptr [di+7],4
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jbe text2
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shl cx,3
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text2:
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mul cx
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div bx
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mov ry,ax
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xor ch,ch
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mov cl,[di+1]
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cmp byte ptr [di+7],4
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jbe text3
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shl cx,3
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text3:
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mul cx
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add ax,rx
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cmp byte ptr [di+7],4
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mov di,ax
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jbe textpoint
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mov ax,0A000h
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mov es,ax
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jmp graphpoint
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textpoint:
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mov ax,0B800h
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mov es,ax
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shl di,1
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inc di
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graphpoint:
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mov bx,xy
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cmp byte ptr es:[bx],070h
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jne waschanged
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mov al,old
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mov byte ptr es:[bx],al
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waschanged:
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mov xy,di
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mov al,es:[di]
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mov old,al
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mov byte ptr es:[di],070h
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mov al, 20h
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out 0a0h, al
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out 20h, al
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errormouse:
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pop es ds bp di si dx cx bx ax
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mov cs:isact,0
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pop bx
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iret
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infos db 40 dup (0)
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getticks:
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mov al,0
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out 43h,al
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jmp wait1
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wait1:
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in al,40h
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mov ah,al
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jmp wait2
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wait2:
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in al,40h
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xchg ah,al
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ret
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end start
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