aboutsummaryrefslogtreecommitdiff
path: root/examples/matrix3.s
blob: 5909188da383bf685b6d1fe163c9bf3a709bd8a2 (plain)
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
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
SET PC, Init

:Seed DAT 0x1234

:WIDTH DAT 32;32
:HEIGHT DAT 12; 12

:CELL_COUNT DAT 384; 384
;SCREEN DAT 0x8000

:NSPINNERS DAT 2
:NGLYPHS DAT 0x26
:NGLYPHS1 DAT 0x25
:CHAR_MAP 
 DAT 32
:CHAR_MAP1
 DAT 48,49,50,51,52,53,54,55,56,57,64
 DAT 97,98,99,100,101,102,103,104,105
 DAT 106,107,108,109,110,111,112,113
 DAT 114,115,116,117,118,119,120,121
 DAT 122
:DENSITY
 DAT 3

;Feeders 0x7000
;Cells   0x6000

:Init
 JSR InitSpinners
 SET I, 0x7000 ;Feeders
 SET J, I
 ADD J, [WIDTH]
 :InitLoop
  SET [I], 0
  ADD I, 1
  IFN I, J
   SET PC, InitLoop
 
:MainLoop
 ; generate
 SET I, 0
 :GenLoop
 SET J, I
 Add J, 0x7000
 SET Z, [J]
 SHR Z, 4
 AND Z, 0xF
 IFN Z, 0
  SET PC, GenCase1
 SET X, [J]
 AND X, 0xF
 SET Y, [J]
 SHR Y, 8
 IFG X, 0
  SET PC, GenCase2
 SET A, 0
 SET B, I
 SET C, Y
 SET PUSH, I
 JSR InsertGlyph
 SET I, POP
 SET X, [J]
 AND X, 0xF
 SET Y, [J]
 SHR Y, 8
 IFE Y, 0xF
  SET PC, GenDone
 ADD Y, 1
 AND [J], 0xFF
 SHL Y, 8
 BOR [J], Y
 SET PC, GenDone
 :GenCase1
 SUB Z, 1
 SHL Z, 4
 AND [J], 0xF0F
 BOR [J], Z
 SET PC, GenDone
 :GenCase2
 JSR Rnd
 MOD A, [NGLYPHS]
 SET B, I
 SET C, Y
 SET PUSH, I
 JSR InsertGlyph
 SET I, POP
 SET X, [J]
 AND X, 0xF
 SET Y, [J]
 SHR Y, 8
 AND [J], 0xFF0
 SUB X, 1
 BOR [J], X
 IFE Y, 0xF
  SET PC, GenDone
 ADD Y, 1
 AND [J], 0xFF
 SHL Y, 8
 BOR [J], Y
 :GenDone
 JSR Rnd
 MOD A, 10
 IFN A, 0
  SET PC, GenInc
 JSR Rnd
 MOD A, 5
 SET B, A
 JSR Rnd
 MOD A, 5
 ADD A, B
 AND [J], 0xF0F
 SHL A, 4
 BOR [J], A
 :GenInc
 ADD I, 1
 IFN I, [WIDTH]
  SET PC, GenLoop
 ; mutate
 SET I, 0
 :MLoop
 SET X, I
 ADD X, 0x7000
 SET Y, [X]
 SET A, Y
 AND A, 0xFF
 IFG A, 0
  SET PC, MInc
 JSR Rnd
 MOD A, [DENSITY]
 IFN A, 0
  SET PC, MInc
 JSR Rnd
 MOD A, [HEIGHT]
 ADD A, 3
 SET [X], A
 JSR Rnd
 MOD A, 5
 SET B, A
 JSR Rnd
 MOD A, 5
 ADD A, B
 SHL A, 4
 BOR [X], A
 JSR Rnd
 MOD A, 4
 IFN A, 0
  AND [X], 0xF0
 JSR Rnd
 MOD A, 2
 IFE A, 0
  SET PC, MStream
 SET A, [HEIGHT]
 SHR A, 1
 SET B, A
 JSR Rnd
 MOD A, B
 SHL A, 8
 BOR [X], A
 SET PC, MInc
 :MStream
 BOR [X], 0xF00
 :MInc
 ADD I, 1
 IFN I, [WIDTH]
  SET PC, MLoop
 JSR Rnd
 MOD A, 500
 IFE A, 0
  JSR InitSpinners
 ; draw
 SET I, 0
 :DrawLoop
  SET X, I
  MUL X, 2
  ADD X, 0x6000 ; Cells
  SET Y, X
  ADD Y, 1
  SET A, [Y]
  AND A, 1
  IFE A, 0
   SET PC, DrawInc
  SET B, [X]
  SET C, B
  AND B, 0xFF
  SHR C, 8
  IFE C, 0
   SET PC, DrawBlank
  SET J, 0x5000
  IFN B, 0
   SET J, 0x8000
  IFB [Y], 2
   SET J, 0x8000
  SET Z, C
  ADD Z, CHAR_MAP
  SET Z, [Z]
  BOR J, Z
  SET Z, 0x8000
  ADD Z, I
  SET [Z], J
  SET PC, DrawDone
  :DrawBlank
  SET Z, 0x8000
  ADD Z, I
  SET [Z], 0
  :DrawDone
  AND [Y], 2
  IFE B, 0
   SET PC, DrawSkipGlow
  SUB B, 1
  BOR [Y], 1
  AND [X], 0xFF00
  ADD [X], B
  :DrawSkipGlow
  IFG 2, [Y]
   SET PC, DrawInc
  JSR Rnd
  MOD A, [NGLYPHS1]
  ADD A, 1
  SHL A, 8
  AND [X], 0xFF
  BOR [X], A
  BOR [Y], 1
 :DrawInc
  ADD I, 1
  IFN I, [CELL_COUNT]
   SET PC, DrawLoop
 SET PC, MainLoop
 
:Rnd
 SET A, [Seed]
 MUL A, 0x7C4D
 ADD A, 0x3619
 SET [Seed], A
 SET PC, POP

:InitSpinners
 SET C, 0x6000 ; Cells
 SET I, C
 SET X, [CELL_COUNT]
 MUL X, 2
 ADD X, C
 :ISLoop1
 SET [I], 0
 ADD I, 1
 SET [I], 0
 ADD I, 1
 IFN I, X
  SET PC, ISLoop1
 SET I, 0
 SET PC, ISLoopTest
 :ISLoop2
 JSR Rnd
 MOD A, [WIDTH]
 SET B, A
 JSR Rnd
 MOD A, [HEIGHT]
 MUL A, [WIDTH]
 ADD B, A
 MUL B, 2
 ADD B, 1
 ADD B, C
 BOR [B], 2
 ADD I, 1
 :ISLoopTest
 IFN I, [NSPINNERS]
  SET PC, ISLoop2
 SET PC, POP
 
:InsertGlyph ; A = glyph, B = x, C = y
 SET Z, 1
 IFE C, 0xF
  SET Z, 0
 IFE Z, 0
  SET C, 0
 SET Y, [HEIGHT]
 ADD Y, 1
 IFG C, Y
  SET PC, POP
 IFE Z, 1
  SET PC, IGSimple
 SET I, [HEIGHT]
 SUB I, 1
 :IGLoop
 SET Y, I
 MUL Y, [WIDTH]
 ADD Y, B
 MUL Y, 2
 ADD Y, 0x6000 ; Cells
 SET X, Y
 SUB X, [WIDTH]
 SUB X, [WIDTH]
 SET [Y], [X]
 SET X, Y
 ADD X, 1
 BOR [X], 1
 SUB I, 1
 IFN I, 0
  SET PC, IGLoop
 SET Y, B
 MUL Y, 2
 ADD Y, 0x6000 ; Cells
 SET PC, IGFinal
 :IGSimple
 SET Y, [WIDTH]
 MUL Y, C
 ADD Y, B
 MUL Y, 2
 ADD Y, 0x6000 ; Cells
 :IGFinal
 SHL A, 8
 AND [Y], 0xFF
 BOR [Y], A
 SET X, Y
 ADD X, 1
 BOR [X], 1
 IFE A, 0
  SET PC, POP
 AND [Y], 0xFF00
 IFE Z, 0
  SET PC, POP
 JSR Rnd
 MOD A, 2
 ADD A, 1
 BOR [Y], A
 SET PC, POP