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Rev 58 Rev 120
1 
; Íîìåð ïðèíèìàåìîãî îò ìûøè áàéòà
 1 
; Íîìåð ïðèíèìàåìîãî îò ìûøè áàéòà
2 
MouseByteNumber DB 0
 2 
MouseByteNumber DB 0
3 
; Òðåõáàéòîâàÿ ñòðóêòóðà äàííûõ, ïåðåäàâàåìàÿ ìûøüþ
 3 
; Òðåõáàéòîâàÿ ñòðóêòóðà äàííûõ, ïåðåäàâàåìàÿ ìûøüþ
4 
FirstByte       DB 0
 4 
FirstByte       DB 0
5 
SecondByte      DB 0
 5 
SecondByte      DB 0
6 
ThirdByte       DB 0
 6 
ThirdByte       DB 0
7 
 
 - 
 
- 
 
 7 
timer_ticks_com dd 0
8 
;***************************************
 8 
;***************************************
9 
;* ÍÎÂÛÉ ÎÁÐÀÁÎÒ×ÈÊ ÏÐÅÐÛÂÀÍÈß ÎÒ ÌÛØÈ *
 9 
;* ÍÎÂÛÉ ÎÁÐÀÁÎÒ×ÈÊ ÏÐÅÐÛÂÀÍÈß ÎÒ ÌÛØÈ *
10 
;***************************************
 10 
;***************************************
11 
check_mouse_data_com1:
 11 
check_mouse_data_com1:
12 
;        cmp     [com1_mouse_detected],0
 12 
;        cmp     [com1_mouse_detected],0
13 
;        je      @@EndMouseInterrupt
 13 
;        je      @@EndMouseInterrupt
14 
; Ïðîâåðèòü íàëè÷èå äàííûõ
 14 
; Ïðîâåðèòü íàëè÷èå äàííûõ
15 
        mov     DX,3F8h  ;[COMPortBaseAddr]
 15 
        mov     DX,3F8h  ;[COMPortBaseAddr]
16 
        add     DX,5         ;xFDh
 16 
        add     DX,5         ;xFDh
17 
        in      AL,DX
 17 
        in      AL,DX
18 
        test    AL,1   ;Äàííûå ãîòîâû?
 18 
        test    AL,1   ;Äàííûå ãîòîâû?
19 
        jz      @@Error
 19 
        jz      @@Error
20 
; Ââåñòè äàííûå
 20 
; Ââåñòè äàííûå
21 
        mov     DX,3F8h   ;[COMPortBaseAddr]   ;xF8h
 21 
        mov     DX,3F8h   ;[COMPortBaseAddr]   ;xF8h
22 
        in      AL,DX
 22 
        in      AL,DX
23 
; Ñáðîñèòü ñòàðøèé íåçíà÷àùèé áèò
 23 
; Ñáðîñèòü ñòàðøèé íåçíà÷àùèé áèò
24 
        and     AL,01111111b
 24 
        and     AL,01111111b
25 
 
 25 
 
26 
; Îïðåäåëèòü ïîðÿäêîâûé íîìåð ïðèíèìàåìîãî áàéòà
 26 
; Îïðåäåëèòü ïîðÿäêîâûé íîìåð ïðèíèìàåìîãî áàéòà
27 
        cmp     [MouseByteNumber],0
 27 
        cmp     [MouseByteNumber],0
28 
        je      @@FirstByte
 28 
        je      @@FirstByte
29 
        cmp     [MouseByteNumber],1
 29 
        cmp     [MouseByteNumber],1
30 
        je      @@SecondByte
 30 
        je      @@SecondByte
31 
        cmp     [MouseByteNumber],2
 31 
        cmp     [MouseByteNumber],2
32 
        je      @@ThirdByte
 32 
        je      @@ThirdByte
33 
        jmp     @@Error
 33 
        jmp     @@Error
34 
 
 34 
 
35 
; Ñîõðàíèòü ïåðâûé áàéò äàííûõ
 35 
; Ñîõðàíèòü ïåðâûé áàéò äàííûõ
36 
@@FirstByte:
 36 
@@FirstByte:
37 
        test    AL,1000000b       ;Ïåðâûé áàéò ïîñûëêè?
 37 
        test    AL,1000000b       ;Ïåðâûé áàéò ïîñûëêè?
38 
        jz      @@Error
 38 
        jz      @@Error
39 
        mov     [FirstByte],AL
 39 
        mov     [FirstByte],AL
40 
        inc     [MouseByteNumber] ;óâåëè÷èòü ñ÷åò÷èê
 40 
        inc     [MouseByteNumber] ;óâåëè÷èòü ñ÷åò÷èê
41 
        jmp     @@EndMouseInterrupt
 41 
        jmp     @@EndMouseInterrupt
42 
; Ñîõðàíèòü âòîðîé áàéò äàííûõ
 42 
; Ñîõðàíèòü âòîðîé áàéò äàííûõ
43 
@@SecondByte:
 43 
@@SecondByte:
44 
        test    AL,1000000b
 44 
        test    AL,1000000b
45 
        jnz     @@Error
 45 
        jnz     @@Error
46 
        mov     [SecondByte],AL
 46 
        mov     [SecondByte],AL
47 
        inc     [MouseByteNumber] ;óâåëè÷èòü ñ÷åò÷èê
 47 
        inc     [MouseByteNumber] ;óâåëè÷èòü ñ÷åò÷èê
48 
        jmp     @@EndMouseInterrupt
 48 
        jmp     @@EndMouseInterrupt
49 
; Ñîõðàíèòü òðåòèé áàéò äàííûõ
 49 
; Ñîõðàíèòü òðåòèé áàéò äàííûõ
50 
@@ThirdByte:
 50 
@@ThirdByte:
51 
        test    AL,1000000b
 51 
        test    AL,1000000b
52 
        jnz     @@Error
 52 
        jnz     @@Error
53 
        mov     [ThirdByte],AL    ;óâåëè÷èòü ñ÷åò÷èê
 53 
        mov     [ThirdByte],AL    ;óâåëè÷èòü ñ÷åò÷èê
54 
        mov     [MouseByteNumber],0
 54 
        mov     [MouseByteNumber],0
55 
; (Ïàêåò äàííûõ îò ìûøè ïðèíÿò ïîëíîñòüþ).
 55 
; (Ïàêåò äàííûõ îò ìûøè ïðèíÿò ïîëíîñòüþ).
56 
; Çàïèñàòü íîâîå çíà÷åíèå ñîñòîÿíèÿ êíîïîê ìûøè
 56 
; Çàïèñàòü íîâîå çíà÷åíèå ñîñòîÿíèÿ êíîïîê ìûøè
57 
        mov al,[FirstByte]   ;[0xfb01]
 57 
        mov al,[FirstByte]   ;[0xfb01]
58 
        mov ah,al
 58 
        mov ah,al
59 
        shr al,3
 59 
        shr al,3
60 
        and al,2
 60 
        and al,2
61 
        shr ah,5
 61 
        shr ah,5
62 
        and ah,1
 62 
        and ah,1
63 
        add al,ah
 63 
        add al,ah
64 
        mov    [0xfb40],al
 64 
        mov    [0xfb40],al
65 
        mov    [mouse_active],1
 65 
        mov    [mouse_active],1
66 
; Ïðèáàâèòü ïåðåìåùåíèå ïî X ê êîîðäèíàòå X
 66 
; Ïðèáàâèòü ïåðåìåùåíèå ïî X ê êîîðäèíàòå X
67 
        mov     AL,[FirstByte]
 67 
        mov     AL,[FirstByte]
68 
        shl     AL,6
 68 
        shl     AL,6
69 
        or      AL,[SecondByte]
 69 
        or      AL,[SecondByte]
70 
        cbw
 70 
        cbw
71 
         shl  ax,1
 71 
        call    mouse_acceleration_com1
72 
        add     AX,[0xFB0A]    ;[XCoordinate]
 72 
        add     AX,[0xFB0A]    ;[XCoordinate]
73 
        ; Êóðñîð íå äîëæåí âûõîäèòü çà ëåâóþ èëè
 73 
        ; Êóðñîð íå äîëæåí âûõîäèòü çà ëåâóþ èëè
74 
        ; ïðàâóþ ãðàíèöó ýêðàíà
 74 
        ; ïðàâóþ ãðàíèöó ýêðàíà
75 
        js      @@X1
 75 
        js      @@X1
76 
        cmp     AX,[0xFE00]   ;ScreenLength
 76 
        cmp     AX,[0xFE00]   ;ScreenLength
77 
        jb      @@X2
 77 
        jb      @@X2
78 
        ; Óñòàíîâèòü êîîðäèíàòó X ïî ïðàâîé ãðàíèöå
 78 
        ; Óñòàíîâèòü êîîðäèíàòó X ïî ïðàâîé ãðàíèöå
79 
        mov     AX,[0xFE00]   ;ScreenLength-1
 79 
        mov     AX,[0xFE00]   ;ScreenLength-1
80 
        dec     ax
 80 
        dec     ax
81 
        jmp     @@X2
 81 
        jmp     @@X2
82 
@@X1:
 82 
@@X1:
83 
       ; Óñòàíîâèòü êîîðäèíàòó X ïî ëåâîé ãðàíèöå
 83 
       ; Óñòàíîâèòü êîîðäèíàòó X ïî ëåâîé ãðàíèöå
84 
        xor     AX,AX
 84 
        xor     AX,AX
85 
@@X2:
 85 
@@X2:
86 
        mov     [0xFB0A],AX     ;[XCoordinate]
 86 
        mov     [0xFB0A],AX     ;[XCoordinate]
87 
        ; Ïðèáàâèòü ïåðåìåùåíèå ïî Y ê êîîðäèíàòå Y
 87 
        ; Ïðèáàâèòü ïåðåìåùåíèå ïî Y ê êîîðäèíàòå Y
88 
        mov     AL,[FirstByte]
 88 
        mov     AL,[FirstByte]
89 
        and     AL,00001100b
 89 
        and     AL,00001100b
90 
        shl     AL,4
 90 
        shl     AL,4
91 
        or      AL,[ThirdByte]
 91 
        or      AL,[ThirdByte]
92 
        cbw
 92 
        cbw
93 
         shl  ax,1
 93 
        call    mouse_acceleration_com1
94 
        add     AX,[0xFB0C]   ;[YCoordinate]
 94 
        add     AX,[0xFB0C]   ;[YCoordinate]
95 
        ; Êóðñîð íå äîëæåí âûõîäèòü çà âåðõíþþ èëè
 95 
        ; Êóðñîð íå äîëæåí âûõîäèòü çà âåðõíþþ èëè
96 
        ; íèæíþþ ãðàíèöó ýêðàíà
 96 
        ; íèæíþþ ãðàíèöó ýêðàíà
97 
        js      @@Y1
 97 
        js      @@Y1
98 
        cmp     AX,[0xFE04]  ;ScreenHeigth
 98 
        cmp     AX,[0xFE04]  ;ScreenHeigth
99 
        jb      @@Y2
 99 
        jb      @@Y2
100 
        ; Óñòàíîâèòü êîîðäèíàòó X ïî íèæíåé ãðàíèöå
 100 
        ; Óñòàíîâèòü êîîðäèíàòó X ïî íèæíåé ãðàíèöå
101 
        mov     AX,[0xFE04] ;ScreenHeigth-1
 101 
        mov     AX,[0xFE04] ;ScreenHeigth-1
102 
        dec     ax
 102 
        dec     ax
103 
        jmp     @@Y2
 103 
        jmp     @@Y2
104 
@@Y1:
 104 
@@Y1:
105 
       ; Óñòàíîâèòü êîîðäèíàòó X ïî âåðõíåé ãðàíèöå
 105 
       ; Óñòàíîâèòü êîîðäèíàòó X ïî âåðõíåé ãðàíèöå
106 
        xor     AX,AX
 106 
        xor     AX,AX
107 
@@Y2:
 107 
@@Y2:
108 
        mov     [0xFB0C],AX     ;[YCoordinate]
 108 
        mov     [0xFB0C],AX     ;[YCoordinate]
- 
 
 109 
        mov   eax,[timer_ticks]
- 
 
 110 
        mov   [timer_ticks_com],eax
109 
        jmp     @@EndMouseInterrupt
 111 
        jmp     @@EndMouseInterrupt
110 
 
 112 
 
111 
@@Error:
 113 
@@Error:
112 
; Ïðîèçîøåë ñáîé â ïîðÿäêå ïåðåäà÷è èíôîðìàöèè îò
 114 
; Ïðîèçîøåë ñáîé â ïîðÿäêå ïåðåäà÷è èíôîðìàöèè îò
113 
; ìûøè, îáíóëèòü ñ÷åò÷èê áàéòîâ ïàêåòà äàííûõ
 115 
; ìûøè, îáíóëèòü ñ÷åò÷èê áàéòîâ ïàêåòà äàííûõ
114 
        mov     [MouseByteNumber],0
 116 
        mov     [MouseByteNumber],0
115 
@@EndMouseInterrupt:
 117 
@@EndMouseInterrupt:
116 
        call  ready_for_next_irq
 118 
        call  ready_for_next_irq
117 
        ret
 119 
        ret
- 
 
 120 
 
- 
 
 121 
mouse_acceleration_com1:
- 
 
 122 
        push    eax
- 
 
 123 
        mov   eax,[timer_ticks]
- 
 
 124 
        sub   eax,[timer_ticks_com]
- 
 
 125 
        cmp   eax,[mouse_delay]
- 
 
 126 
        pop    eax
- 
 
 127 
        ja     @f
- 
 
 128 
        shl    ax,1
- 
 
 129 
@@:
- 
 
 130 
        ret