Apple-2-Tools/apple2pi
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Apple II source

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Build with Merlin 8 on ProDOS
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dschmenk 2013-05-23 13:50:35 -07:00
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1 COUT EQU $FDED
2 WAIT EQU $FCA8
3 KEYBD EQU $C000
4 KBCLR EQU $C010
5 PTR EQU $06
6 PTRL EQU $06
7 PTRH EQU $07
8 MOUROM EQU $300
9 SSCROM EQU $301
10 MOUSLOT EQU $302
11 SSCSLOT EQU $303
12 MOUINDEX EQU $304
13 ORG $1000
14 ENTRY LDA #$C1
15 STA PTRH
16 LDA #$00
17 STA PTRL
18 STA MOUROM
19 STA SSCROM
20 STA MOUSLOT
21 STA SSCSLOT
22 STA MOUINDEX
23 *
24 * SEARCH SLOTS FOR MOUSE AND SUPERSERIAL CARDS
25 *
26 IDCARD LDY #$05
27 LDA (PTR),Y
28 CMP #$38 ; PASCAL ID BYTE
29 BNE NEXTCARD
30 LDY #$07
31 LDA (PTR),Y
32 CMP #$18
33 BNE NEXTCARD ; PASCAL ID BYTE
34 ISMOU LDY #$0C
35 LDA (PTR),Y
36 CMP #$20
37 BNE ISSSC
38 LDY #$FB
39 LDA (PTR),Y
40 CMP #$D6
41 BNE ISSSC
42 LDA PTRH
43 STA MOUROM
44 AND #$07
45 STA MOUINDEX
46 ASL
47 ASL
48 ASL
49 ASL
50 STA MOUSLOT
51 BNE NEXTCARD
52 ISSSC LDY #$0C
53 LDA (PTR),Y
54 CMP #$31
55 BNE NEXTCARD
56 LDA PTRH
57 STA SSCROM
58 ASL
59 ASL
60 ASL
61 ASL
62 STA SSCSLOT
63 NEXTCARD INC PTRH
64 LDA PTRH
65 CMP #$C8
66 BNE IDCARD
67 *
68 * INIT MOUSE
69 *
70 INITMOU LDY MOUINDEX
71 BEQ INITSSC
72 LDY #$19 ; INIT MOUSE
73 JSR CALLMOU
74 LDY #$12 ; SET MOUSE
75 LDA #$01 ; TRANSPARENT MODE
76 JSR CALLMOU
77 LDA #$00
78 STA $478
79 STA $4F8
80 LDA #$C0
81 STA $578
82 LDA #$3F
83 STA $5F8
84 LDY #$17 ; CLAMP MOUSE
85 LDA #$00 ; X AXIS
86 JSR CALLMOU
87 LDY #$17 ; CLAMP MOUSE
88 LDA #$01 ; YAXIS
89 JSR CALLMOU
90 *
91 * INIT SSC CARD FOR 115K BAUD
92 *
93 INITSSC LDY SSCSLOT
94 BNE SETSSC
95 JMP EXIT
96 SETSSC LDA #$0B
97 STA $C08A,Y
98 LDA #$10
99 STA $C08B,Y ; 115K
100 *
101 * SYNCHRONIZE WITH PI
102 *
103 SYNC LDA #$80
104 STA $C088,Y
105 ORA #'.'
106 JSR COUT
107 LDA #$FF
108 JSR WAIT
109 LDA KEYBD
110 BMI EXIT
111 LDY SSCSLOT
112 LDA $C089,Y
113 AND #$08
114 BEQ SYNC
115 LDA $C088,Y
116 CMP #$81
117 BNE SYNC
118 *
119 * CHECK INPUT STATE FOR CHANGE
120 *
121 EVENTLP LDX KEYBD
122 BMI SENDKEY
123 DEC WAITMOU
124 BNE EVENTLP
125 CHKMOU LDY #$14 ; READ MOUSE
126 JSR CALLMOU
127 BCS EVENTLP
128 LDY MOUINDEX
129 LDA $478,Y
130 STA MOUXSTAT
131 LDA $4F8,Y
132 STA MOUYSTAT
133 LDY #$15 ; CLEAR MOUSE
134 JSR CALLMOU
135 LDA MOUXSTAT
136 ORA MOUYSTAT
137 BNE SENDMOU
138 CHKBTTN LDY MOUINDEX
139 LDA $778,Y
140 AND #$80
141 CMP BTTNSTAT
142 BEQ EVENTLP
143 JMP SENDBTTN
144 SENDKEY STX KBCLR
145 LDY SSCSLOT
146 LDA #$82 ; KBEVENT CODE
147 JSR SENDACC
148 JSR SENDMOD
149 TXA
150 JSR SENDACC
151 CPX #$9B ; ESC KEY
152 BNE EVENTLP
153 LDA $C062
154 BPL EVENTLP
155 EXIT LDA KBCLR
156 LDY #$12 ; SET MOUSE
157 LDA #$00 ; DISABLE MOUSE
158 JMP CALLMOU
159 SENDMOU LDY SSCSLOT
160 LDA #$84
161 JSR SENDACC
162 LDA MOUXSTAT
163 JSR SENDACC
164 LDA MOUYSTAT
165 JSR SENDACC
166 JMP CHKBTTN
167 SENDBTTN STA BTTNSTAT
168 LDY SSCSLOT
169 LDA #$86
170 JSR SENDACC
171 JSR SENDMOD
172 LDA BTTNSTAT
173 JSR SENDACC
174 JMP EVENTLP
175 SENDMOD LDA $C062
176 ASL
177 LDA $C061
178 ROR
179 AND #$C0
180 SENDACC STA $C088,Y
181 SENDWT LDA #$10
182 AND $C089,Y
183 BEQ SENDWT
184 RTS
185 CALLMOU LDX MOUROM
186 BEQ EXITMOU
187 STX PTRH
188 PHA
189 LDA #$00
190 STA PTRL
191 LDA (PTR),Y
192 STA PTRL
193 LDX MOUROM
194 LDY MOUSLOT
195 PLA
196 PHP
197 SEI
198 JSR IJMP
199 PLP
200 CLC
201 RTS
202 EXITMOU SEC
203 RTS
204 IJMP JMP (PTR)
205 MOUXSTAT DB 0
206 MOUYSTAT DB 0
207 BTTNSTAT DB 0
208 WAITMOU DB 0