/
macro.inc
416 lines (345 loc) · 7.27 KB
/
macro.inc
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
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
!MACRO STI .m, .i {
LDA #.i
STA .m
}
!MACRO STI .m0, .m1, .i {
LDA #.i
STA .m1
STA .m0
}
!MACRO STI .m0, .m1, .m2, .i {
LDA #.i
STA .m0
STA .m1
STA .m2
}
!MACRO STM .d, .s {
LDA .s
STA .d
}
!MACRO STIW .m, .i {
LDA #<.i ; set low byte
STA .m+0
LDA #>.i ; set high byte
STA .m+1
}
!MACRO MANDI .m, .i {
LDA .m
AND #.i
STA .m
}
!MACRO MORAI .m, .i {
LDA .m
ORA #.i
STA .m
}
!MACRO LDMSG .msg {
LDY #0
- LDA .data,Y
JSR CHROUT
INY
CPY #(.end-.data)
BNE -
JMP .end
.data !PET 5, .msg, 13
.end
}
!MACRO LDVFILE .file, .len, .addr, .maxsz {
LDA #.len ;LENGTH OF FILENAME
LDX #<.file
LDY #>.file
JSR SETNAM ;SETNAM A=FILE NAME LENGTH X/Y=POINTER TO FILENAME
LDA #$02
;LDX #$08
LDX $BA
LDY #$00
JSR SETLFS ;SETFLS A=LOGICAL NUMBER X=DEVICE NUMBER Y=SECONDARY
LDX #<.addr ;LOW BYTE FOR LOAD ADDRESS
LDY #>.addr ;HIGH BYTE FOR LOAD ADDRESS
LDA #$00
JSR LOAD ;LOAD FILE A=0 FOR LOAD X/Y=LOAD ADDRESS
PHP
JSR CLOSE ;CLOSE FILE
PLP
; TODO (maybe) add error checking to ensure successful load and not too big
}
!MACRO LDCFILE .file, .addr, .maxsz {
+LDVFILE .data, (.end-.data), .addr, .maxsz
JMP .end
.data !PET .file
.end
}
!MACRO LDCFILE .msg, .file, .addr, .maxsz {
+LDMSG .msg
+LDCFILE .file, .addr, .maxsz
}
!MACRO CP .d, .s {
LDA .s
STA .d
}
!MACRO PHI .v {
LDA #.v
PHA
}
!MACRO PH .m {
LDA .m
PHA
}
!MACRO PL .m {
PLA
STA .m
}
!MACRO PHW .m {
LDA .m+1
PHA
LDA .m+0
PHA
}
!MACRO PLW .m {
PLA
STA .m+0
PLA
STA .m+1
}
!MACRO WAIT_VDC {
- BIT VDCASR
BPL -
}
!MACRO STIVDC .v {
+WAIT_VDC
+STI VDCDAT, .v
}
!MACRO STIVDC .r, .v {
LDX #.r
STX VDCASR
+STIVDC .v
}
!MACRO STIWVDC .r, .v {
+STIVDC .r+0, >.v
+STIVDC .r+1, <.v
}
!MACRO STWVDC .r, .a {
LDA .a+1
+STVDC .r+0
LDA .a+0
+STVDC .r+1
}
!MACRO STVDC {
+WAIT_VDC
STA VDCDAT
}
!MACRO STVDC .r {
LDX #.r
STX VDCASR
+STVDC
}
!MACRO STVDC .r, .a {
LDA .a
+STVDC .r
}
!MACRO LDVDC {
+WAIT_VDC
LDA VDCDAT
}
!MACRO LDVDC .r {
LDX #.r
STX VDCASR
+LDVDC
}
!MACRO CMPI_BEQ .k, .l {
CMP #.k
BNE +
JMP .l
+
}
!MACRO CMPM_BEQ .k, .l {
CMP .k
BNE +
JMP .l
+
}
!MACRO CMPMI_BEQ .a, .k, .l {
LDA .a
CMP #.k
BNE +
JMP .l
+
}
!MACRO DECOMPRESS_SCREEN .src, .dst {
!IF .dst = SCREEN_MEMORY {
+STIW DECOMPRESS_BYTE+1, DECOMPRESS_SCREEN_BYTE
}
!IF .dst = COLOR_MEMORY {
+STIW DECOMPRESS_BYTE+1, DECOMPRESS_COLOR_BYTE
}
;SET SOURCE
+STIW $FB, .src
;SET DESTINATION
+STIW $FD, .dst
;SET END
LDA #>(.dst+1000-1)
STA DGS5+1
LDA #<(.dst+1000-1)
STA DGS6+1
JSR DECOMPRESS_SCREEN
}
!MACRO ADDW .a {
CLC
ADC .a+0
STA .a+0
BCC +
INC .a+1
+
}
!MACRO ADDW .a, .v {
CLC
!IF <.v != 0 {
LDA .a+0
ADC #<.v
STA .a+0
}
!IF >.v != 0 {
LDA .a+1
ADC #>.v
STA .a+1
} ELSE {
BCC +
INC .a+1
+
}
}
!MACRO SUBW .a, .v {
SEC
!IF <.v != 0 {
LDA .a+0
SBC #<.v
STA .a+0
}
!IF >.v != 0 {
LDA .a+1
SBC #>.v
STA .a+1
} ELSE {
BCS +
DEC .a+1
+
}
}
!MACRO ADD .a, .v {
CLC
LDA .a
ADC #.v
STA .a
}
!MACRO SUB .a, .v {
SEC
LDA .a
SBC #.v
STA .a
}
!MACRO LSRW .a {
LSR .a+1
ROR .a+0
}
!MACRO PHX {
TXA
PHA
}
!MACRO PLX {
PLA
TAX
}
!MACRO PHY {
TYA
PHA
}
!MACRO PLY {
PLA
TAY
}
!MACRO TXY {
TXA
TAY
}
!MACRO MEORI .a, .v {
LDA .a
EOR #.v
STA .a
}
!MACRO PHALL {
PHP
PHA
+PHX
+PHY
}
!MACRO PLALL {
+PLY
+PLX
PLA
PLP
}
; macro to call when the map changes
!MACRO VDC_MAP_CHANGED {
+PHALL
LDY VDC_MAP_DRAW_COUNT
TXA
STA VDC_MAP_DRAW_UNIT,Y
INC VDC_MAP_DRAW_COUNT
LDY VDC_MAP_ERASE_COUNT
LDA UNIT_LOC_X,X
STA VDC_MAP_ERASE_LOC_X,Y
LDA UNIT_LOC_Y,X
STA VDC_MAP_ERASE_LOC_Y,Y
INC VDC_MAP_ERASE_COUNT
LDX VDC_MAP_DRAW_COUNT
CPX #64
BEQ +
LDX VDC_MAP_ERASE_COUNT
CPX #64
BEQ +
JMP ++
+ JSR VDC_MAP_DRAW_UNITS
++ +PLALL
}
; macro to call when the map changes
!MACRO VDC_MAP_CHANGED .x, .y {
+PHALL
LDX VDC_MAP_ERASE_COUNT
LDA .x
STA VDC_MAP_ERASE_LOC_X,X
LDA .y
STA VDC_MAP_ERASE_LOC_Y,X
INC VDC_MAP_ERASE_COUNT
LDX VDC_MAP_ERASE_COUNT
CPX #64
BEQ +
JMP ++
+ JSR VDC_MAP_DRAW_UNITS
++ +PLALL
}
!MACRO REUI .sys, .reu, .sz, .mode {
+STIW $DF02, .sys
+STIW $DF04, .reu
+STI $DF06, ^.reu
+STIW $DF07, .sz
+STI $DF01, %10010000+.mode
}
!MACRO STASHI .sys, .reu, .sz {
+REUI .sys, .reu, .sz, 0
}
!MACRO FETCHI .sys, .reu, .sz {
+REUI .sys, .reu, .sz, 1
}
!MACRO ASLWM .addr {
ASL .addr+0
ROL .addr+1
}
!MACRO ADDWM .dst, .src {
CLC
LDA .dst+0
ADC .src+0
STA .dst+0
LDA .dst+1
ADC .src+1
STA .dst+1
}