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Rev 381 Rev 425
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 1 
$Revision: 425 $
1 
; Íîìåð ïðèíèìàåìîãî îò ìûøè áàéòà
 2 
; Íîìåð ïðèíèìàåìîãî îò ìûøè áàéòà
2 
MouseByteNumber DB 0
 3 
MouseByteNumber DB 0
3 
; Òðåõáàéòîâàÿ ñòðóêòóðà äàííûõ, ïåðåäàâàåìàÿ ìûøüþ
 4 
; Òðåõáàéòîâàÿ ñòðóêòóðà äàííûõ, ïåðåäàâàåìàÿ ìûøüþ
4 
FirstByte       DB 0
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FirstByte       DB 0
5 
SecondByte      DB 0
 6 
SecondByte      DB 0
6 
ThirdByte       DB 0
 7 
ThirdByte       DB 0
7 
timer_ticks_com dd 0
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timer_ticks_com dd 0
8 
;***************************************
 9 
;***************************************
9 
;* ÍÎÂÛÉ ÎÁÐÀÁÎÒ×ÈÊ ÏÐÅÐÛÂÀÍÈß ÎÒ ÌÛØÈ *
 10 
;* ÍÎÂÛÉ ÎÁÐÀÁÎÒ×ÈÊ ÏÐÅÐÛÂÀÍÈß ÎÒ ÌÛØÈ *
10 
;***************************************
 11 
;***************************************
11 
check_mouse_data_com1:
 12 
check_mouse_data_com1:
12 
;        cmp     [com1_mouse_detected],0
 13 
;        cmp     [com1_mouse_detected],0
13 
;        je      @@EndMouseInterrupt
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;        je      @@EndMouseInterrupt
14 
; Ïðîâåðèòü íàëè÷èå äàííûõ
 15 
; Ïðîâåðèòü íàëè÷èå äàííûõ
15 
        mov     DX,3F8h  ;[COMPortBaseAddr]
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        mov     DX,3F8h  ;[COMPortBaseAddr]
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        add     DX,5         ;xFDh
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        add     DX,5         ;xFDh
17 
        in      AL,DX
 18 
        in      AL,DX
18 
        test    AL,1   ;Äàííûå ãîòîâû?
 19 
        test    AL,1   ;Äàííûå ãîòîâû?
19 
        jz      @@Error
 20 
        jz      @@Error
20 
; Ââåñòè äàííûå
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; Ââåñòè äàííûå
21 
        mov     DX,3F8h   ;[COMPortBaseAddr]   ;xF8h
 22 
        mov     DX,3F8h   ;[COMPortBaseAddr]   ;xF8h
22 
        in      AL,DX
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        in      AL,DX
23 
; Ñáðîñèòü ñòàðøèé íåçíà÷àùèé áèò
 24 
; Ñáðîñèòü ñòàðøèé íåçíà÷àùèé áèò
24 
        and     AL,01111111b
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        and     AL,01111111b
25 
 
 26 
 
26 
; Îïðåäåëèòü ïîðÿäêîâûé íîìåð ïðèíèìàåìîãî áàéòà
 27 
; Îïðåäåëèòü ïîðÿäêîâûé íîìåð ïðèíèìàåìîãî áàéòà
27 
        cmp     [MouseByteNumber],0
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        cmp     [MouseByteNumber],0
28 
        je      @@FirstByte
 29 
        je      @@FirstByte
29 
        cmp     [MouseByteNumber],1
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        cmp     [MouseByteNumber],1
30 
        je      @@SecondByte
 31 
        je      @@SecondByte
31 
        cmp     [MouseByteNumber],2
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        cmp     [MouseByteNumber],2
32 
        je      @@ThirdByte
 33 
        je      @@ThirdByte
33 
        jmp     @@Error
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        jmp     @@Error
34 
 
 35 
 
35 
; Ñîõðàíèòü ïåðâûé áàéò äàííûõ
 36 
; Ñîõðàíèòü ïåðâûé áàéò äàííûõ
36 
@@FirstByte:
 37 
@@FirstByte:
37 
        test    AL,1000000b       ;Ïåðâûé áàéò ïîñûëêè?
 38 
        test    AL,1000000b       ;Ïåðâûé áàéò ïîñûëêè?
38 
        jz      @@Error
 39 
        jz      @@Error
39 
        mov     [FirstByte],AL
 40 
        mov     [FirstByte],AL
40 
        inc     [MouseByteNumber] ;óâåëè÷èòü ñ÷åò÷èê
 41 
        inc     [MouseByteNumber] ;óâåëè÷èòü ñ÷åò÷èê
41 
        jmp     @@EndMouseInterrupt
 42 
        jmp     @@EndMouseInterrupt
42 
; Ñîõðàíèòü âòîðîé áàéò äàííûõ
 43 
; Ñîõðàíèòü âòîðîé áàéò äàííûõ
43 
@@SecondByte:
 44 
@@SecondByte:
44 
        test    AL,1000000b
 45 
        test    AL,1000000b
45 
        jnz     @@Error
 46 
        jnz     @@Error
46 
        mov     [SecondByte],AL
 47 
        mov     [SecondByte],AL
47 
        inc     [MouseByteNumber] ;óâåëè÷èòü ñ÷åò÷èê
 48 
        inc     [MouseByteNumber] ;óâåëè÷èòü ñ÷åò÷èê
48 
        jmp     @@EndMouseInterrupt
 49 
        jmp     @@EndMouseInterrupt
49 
; Ñîõðàíèòü òðåòèé áàéò äàííûõ
 50 
; Ñîõðàíèòü òðåòèé áàéò äàííûõ
50 
@@ThirdByte:
 51 
@@ThirdByte:
51 
        test    AL,1000000b
 52 
        test    AL,1000000b
52 
        jnz     @@Error
 53 
        jnz     @@Error
53 
        mov     [ThirdByte],AL    ;óâåëè÷èòü ñ÷åò÷èê
 54 
        mov     [ThirdByte],AL    ;óâåëè÷èòü ñ÷åò÷èê
54 
        mov     [MouseByteNumber],0
 55 
        mov     [MouseByteNumber],0
55 
; (Ïàêåò äàííûõ îò ìûøè ïðèíÿò ïîëíîñòüþ).
 56 
; (Ïàêåò äàííûõ îò ìûøè ïðèíÿò ïîëíîñòüþ).
56 
; Çàïèñàòü íîâîå çíà÷åíèå ñîñòîÿíèÿ êíîïîê ìûøè
 57 
; Çàïèñàòü íîâîå çíà÷åíèå ñîñòîÿíèÿ êíîïîê ìûøè
57 
        mov al,[FirstByte]   ;[0xfb01]
 58 
        mov al,[FirstByte]   ;[0xfb01]
58 
        mov ah,al
 59 
        mov ah,al
59 
        shr al,3
 60 
        shr al,3
60 
        and al,2
 61 
        and al,2
61 
        shr ah,5
 62 
        shr ah,5
62 
        and ah,1
 63 
        and ah,1
63 
        add al,ah
 64 
        add al,ah
64 
        mov    [BTN_DOWN],al
 65 
        mov    [BTN_DOWN],al
65 
        mov    [mouse_active],1
 66 
        mov    [mouse_active],1
66 
; Ïðèáàâèòü ïåðåìåùåíèå ïî X ê êîîðäèíàòå X
 67 
; Ïðèáàâèòü ïåðåìåùåíèå ïî X ê êîîðäèíàòå X
67 
        mov     AL,[FirstByte]
 68 
        mov     AL,[FirstByte]
68 
        shl     AL,6
 69 
        shl     AL,6
69 
        or      AL,[SecondByte]
 70 
        or      AL,[SecondByte]
70 
        cbw
 71 
        cbw
71 
        call    mouse_acceleration_com1
 72 
        call    mouse_acceleration_com1
72 
        add     AX,[MOUSE_X]    ;[XCoordinate]
 73 
        add     AX,[MOUSE_X]    ;[XCoordinate]
73 
        ; Êóðñîð íå äîëæåí âûõîäèòü çà ëåâóþ èëè
 74 
        ; Êóðñîð íå äîëæåí âûõîäèòü çà ëåâóþ èëè
74 
        ; ïðàâóþ ãðàíèöó ýêðàíà
 75 
        ; ïðàâóþ ãðàíèöó ýêðàíà
75 
        js      @@X1
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        js      @@X1
76 
        cmp     AX,[ScreenWidth]   ;ScreenLength
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        cmp     AX,[ScreenWidth]   ;ScreenLength
77 
        jb      @@X2
 78 
        jb      @@X2
78 
        ; Óñòàíîâèòü êîîðäèíàòó X ïî ïðàâîé ãðàíèöå
 79 
        ; Óñòàíîâèòü êîîðäèíàòó X ïî ïðàâîé ãðàíèöå
79 
        mov     AX,[ScreenWidth]   ;ScreenLength-1
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        mov     AX,[ScreenWidth]   ;ScreenLength-1
80 
        dec     ax
 81 
        dec     ax
81 
        jmp     @@X2
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        jmp     @@X2
82 
@@X1:
 83 
@@X1:
83 
       ; Óñòàíîâèòü êîîðäèíàòó X ïî ëåâîé ãðàíèöå
 84 
       ; Óñòàíîâèòü êîîðäèíàòó X ïî ëåâîé ãðàíèöå
84 
        xor     AX,AX
 85 
        xor     AX,AX
85 
@@X2:
 86 
@@X2:
86 
        mov     [MOUSE_X],AX     ;[XCoordinate]
 87 
        mov     [MOUSE_X],AX     ;[XCoordinate]
87 
        ; Ïðèáàâèòü ïåðåìåùåíèå ïî Y ê êîîðäèíàòå Y
 88 
        ; Ïðèáàâèòü ïåðåìåùåíèå ïî Y ê êîîðäèíàòå Y
88 
        mov     AL,[FirstByte]
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        mov     AL,[FirstByte]
89 
        and     AL,00001100b
 90 
        and     AL,00001100b
90 
        shl     AL,4
 91 
        shl     AL,4
91 
        or      AL,[ThirdByte]
 92 
        or      AL,[ThirdByte]
92 
        cbw
 93 
        cbw
93 
        call    mouse_acceleration_com1
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        call    mouse_acceleration_com1
94 
        add     AX,[MOUSE_Y]   ;[YCoordinate]
 95 
        add     AX,[MOUSE_Y]   ;[YCoordinate]
95 
        ; Êóðñîð íå äîëæåí âûõîäèòü çà âåðõíþþ èëè
 96 
        ; Êóðñîð íå äîëæåí âûõîäèòü çà âåðõíþþ èëè
96 
        ; íèæíþþ ãðàíèöó ýêðàíà
 97 
        ; íèæíþþ ãðàíèöó ýêðàíà
97 
        js      @@Y1
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        js      @@Y1
98 
        cmp     AX,[ScreenHeight]  ;ScreenHeigth
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        cmp     AX,[ScreenHeight]  ;ScreenHeigth
99 
        jb      @@Y2
 100 
        jb      @@Y2
100 
        ; Óñòàíîâèòü êîîðäèíàòó X ïî íèæíåé ãðàíèöå
 101 
        ; Óñòàíîâèòü êîîðäèíàòó X ïî íèæíåé ãðàíèöå
101 
        mov     AX,[ScreenHeight] ;ScreenHeigth-1
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        mov     AX,[ScreenHeight] ;ScreenHeigth-1
102 
        dec     ax
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        dec     ax
103 
        jmp     @@Y2
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        jmp     @@Y2
104 
@@Y1:
 105 
@@Y1:
105 
       ; Óñòàíîâèòü êîîðäèíàòó X ïî âåðõíåé ãðàíèöå
 106 
       ; Óñòàíîâèòü êîîðäèíàòó X ïî âåðõíåé ãðàíèöå
106 
        xor     AX,AX
 107 
        xor     AX,AX
107 
@@Y2:
 108 
@@Y2:
108 
        mov     [MOUSE_Y],AX     ;[YCoordinate]
 109 
        mov     [MOUSE_Y],AX     ;[YCoordinate]
109 
        mov   eax,[timer_ticks]
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        mov   eax,[timer_ticks]
110 
        mov   [timer_ticks_com],eax
 111 
        mov   [timer_ticks_com],eax
111 
        jmp     @@EndMouseInterrupt
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        jmp     @@EndMouseInterrupt
112 
 
 113 
 
113 
@@Error:
 114 
@@Error:
114 
; Ïðîèçîøåë ñáîé â ïîðÿäêå ïåðåäà÷è èíôîðìàöèè îò
 115 
; Ïðîèçîøåë ñáîé â ïîðÿäêå ïåðåäà÷è èíôîðìàöèè îò
115 
; ìûøè, îáíóëèòü ñ÷åò÷èê áàéòîâ ïàêåòà äàííûõ
 116 
; ìûøè, îáíóëèòü ñ÷åò÷èê áàéòîâ ïàêåòà äàííûõ
116 
        mov     [MouseByteNumber],0
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        mov     [MouseByteNumber],0
117 
@@EndMouseInterrupt:
 118 
@@EndMouseInterrupt:
118 
        call  ready_for_next_irq
 119 
        call  ready_for_next_irq
119 
        ret
 120 
        ret
120 
 
 121 
 
121 
mouse_acceleration_com1:
 122 
mouse_acceleration_com1:
122 
        push    eax
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        push    eax
123 
        mov   eax,[timer_ticks]
 124 
        mov   eax,[timer_ticks]
124 
        sub   eax,[timer_ticks_com]
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        sub   eax,[timer_ticks_com]
125 
        cmp   eax,[mouse_delay]
 126 
        cmp   eax,[mouse_delay]
126 
        pop    eax
 127 
        pop    eax
127 
        ja     @f
 128 
        ja     @f
128 
        imul  ax,[mouse_speed_factor]
 129 
        imul  ax,[mouse_speed_factor]
129 
@@:
 130 
@@:
130 
        ret
 131 
        ret