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
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
|
/* code16c8x.c */
/*****************************************************************************/
/* AS-Portierung */
/* */
/* AS-Codegenerator PIC16C8x */
/* */
/* Historie: 21.8.1996 Grundsteinlegung */
/* 7. 7.1998 Fix Zugriffe auf CharTransTable wg. signed chars */
/* 18. 8.1998 Bookkeeping-Aufruf bei RES */
/* 3. 1.1999 ChkPC-Anpassung */
/* Sonderadressbereich PIC16C84 */
/* 2. 10.1999 ChkPC wurde nicht angebunden... */
/* */
/*****************************************************************************/
#include "stdinc.h"
#include <string.h>
#include "chunks.h"
#include "strutil.h"
#include "asmdef.h"
#include "asmsub.h"
#include "asmpars.h"
#include "codepseudo.h"
#include "codevars.h"
/*---------------------------------------------------------------------------*/
typedef struct
{
char *Name;
Word Code;
} FixedOrder;
typedef struct
{
char *Name;
Word Code;
Byte DefaultDir;
} AriOrder;
#define D_CPU16C64 0
#define D_CPU16C84 1
#define FixedOrderCnt 7
#define LitOrderCnt 7
#define AriOrderCnt 14
#define BitOrderCnt 4
#define FOrderCnt 2
static FixedOrder *FixedOrders;
static FixedOrder *LitOrders;
static AriOrder *AriOrders;
static FixedOrder *BitOrders;
static FixedOrder *FOrders;
static CPUVar CPU16C64,CPU16C84;
/*--------------------------------------------------------------------------*/
static void AddFixed(char *NName, Word NCode)
BEGIN
if (InstrZ>=FixedOrderCnt) exit(255);
FixedOrders[InstrZ].Name=NName;
FixedOrders[InstrZ++].Code=NCode;
END
static void AddLit(char *NName, Word NCode)
BEGIN
if (InstrZ>=LitOrderCnt) exit(255);
LitOrders[InstrZ].Name=NName;
LitOrders[InstrZ++].Code=NCode;
END
static void AddAri(char *NName, Word NCode, Byte NDir)
BEGIN
if (InstrZ>=AriOrderCnt) exit(255);
AriOrders[InstrZ].Name=NName;
AriOrders[InstrZ].Code=NCode;
AriOrders[InstrZ++].DefaultDir=NDir;
END
static void AddBit(char *NName, Word NCode)
BEGIN
if (InstrZ>=BitOrderCnt) exit(255);
BitOrders[InstrZ].Name=NName;
BitOrders[InstrZ++].Code=NCode;
END
static void AddF(char *NName, Word NCode)
BEGIN
if (InstrZ>=FOrderCnt) exit(255);
FOrders[InstrZ].Name=NName;
FOrders[InstrZ++].Code=NCode;
END
static void InitFields(void)
BEGIN
FixedOrders=(FixedOrder *) malloc(sizeof(FixedOrder)*FixedOrderCnt); InstrZ=0;
AddFixed("CLRW" , 0x0100);
AddFixed("NOP" , 0x0000);
AddFixed("CLRWDT", 0x0064);
AddFixed("OPTION", 0x0062);
AddFixed("SLEEP" , 0x0063);
AddFixed("RETFIE", 0x0009);
AddFixed("RETURN", 0x0008);
LitOrders=(FixedOrder *) malloc(sizeof(FixedOrder)*LitOrderCnt); InstrZ=0;
AddLit("ADDLW", 0x3e00);
AddLit("ANDLW", 0x3900);
AddLit("IORLW", 0x3800);
AddLit("MOVLW", 0x3000);
AddLit("RETLW", 0x3400);
AddLit("SUBLW", 0x3c00);
AddLit("XORLW", 0x3a00);
AriOrders=(AriOrder *) malloc(sizeof(AriOrder)*AriOrderCnt); InstrZ=0;
AddAri("ADDWF" , 0x0700, 0);
AddAri("ANDWF" , 0x0500, 0);
AddAri("COMF" , 0x0900, 1);
AddAri("DECF" , 0x0300, 1);
AddAri("DECFSZ", 0x0b00, 1);
AddAri("INCF" , 0x0a00, 1);
AddAri("INCFSZ", 0x0f00, 1);
AddAri("IORWF" , 0x0400, 0);
AddAri("MOVF" , 0x0800, 0);
AddAri("RLF" , 0x0d00, 1);
AddAri("RRF" , 0x0c00, 1);
AddAri("SUBWF" , 0x0200, 0);
AddAri("SWAPF" , 0x0e00, 1);
AddAri("XORWF" , 0x0600, 0);
BitOrders=(FixedOrder *) malloc(sizeof(FixedOrder)*BitOrderCnt); InstrZ=0;
AddBit("BCF" , 0x1000);
AddBit("BSF" , 0x1400);
AddBit("BTFSC", 0x1800);
AddBit("BTFSS", 0x1c00);
FOrders=(FixedOrder *) malloc(sizeof(FixedOrder)*FOrderCnt); InstrZ=0;
AddF("CLRF" , 0x0180);
AddF("MOVWF", 0x0080);
END
static void DeinitFields(void)
BEGIN
free(FixedOrders);
free(LitOrders);
free(AriOrders);
free(BitOrders);
free(FOrders);
END
/*--------------------------------------------------------------------------*/
static Word ROMEnd(void)
BEGIN
switch (MomCPU-CPU16C64)
BEGIN
case D_CPU16C64: return 0x7ff;
case D_CPU16C84: return 0x3ff;
default: return 0;
END
END
static Word EvalFExpression(char *Asc, Boolean *OK)
BEGIN
LongInt h;
h=EvalIntExpression(Asc,UInt9,OK);
if (*OK)
BEGIN
ChkSpace(SegData); return (h & 0x7f);
END
else return 0;
END
static Boolean DecodePseudo(void)
BEGIN
Word Size;
Boolean ValOK;
int z;
char *p;
TempResult t;
LongInt MinV,MaxV;
if (Memo("SFR"))
BEGIN
CodeEquate(SegData,0,511);
return True;
END
if (Memo("RES"))
BEGIN
if (ArgCnt!=1) WrError(1110);
else
BEGIN
FirstPassUnknown=False;
Size=EvalIntExpression(ArgStr[1],Int16,&ValOK);
if (FirstPassUnknown) WrError(1820);
if ((ValOK) AND (NOT FirstPassUnknown))
BEGIN
DontPrint=True;
CodeLen=Size;
BookKeeping();
END
END
return True;
END
if (Memo("DATA"))
BEGIN
MaxV=(ActPC==SegCode)?16383:255; MinV=(-((MaxV+1) >> 1));
if (ArgCnt==0) WrError(1110);
else
BEGIN
ValOK=True;
for (z=1; z<=ArgCnt; z++)
if (ValOK)
BEGIN
FirstPassUnknown=False;
EvalExpression(ArgStr[z],&t);
if ((FirstPassUnknown) AND (t.Typ==TempInt)) t.Contents.Int&=MaxV;
switch (t.Typ)
BEGIN
case TempInt:
if (ChkRange(t.Contents.Int,MinV,MaxV))
if (ActPC==SegCode) WAsmCode[CodeLen++]=t.Contents.Int & MaxV;
else BAsmCode[CodeLen++]=t.Contents.Int & MaxV;
break;
case TempFloat:
WrError(1135); ValOK=False;
break;
case TempString:
for (p=t.Contents.Ascii; *p!='\0'; p++)
if (ActPC==SegCode)
WAsmCode[CodeLen++]=CharTransTable[((usint) *p)&0xff];
else
BAsmCode[CodeLen++]=CharTransTable[((usint) *p)&0xff];
break;
default:
ValOK=False;
END
END
if (NOT ValOK) CodeLen=0;
END
return True;
END
if (Memo("ZERO"))
BEGIN
if (ArgCnt!=1) WrError(1110);
else
BEGIN
FirstPassUnknown=False;
Size=EvalIntExpression(ArgStr[1],Int16,&ValOK);
if (FirstPassUnknown) WrError(1820);
if ((ValOK) AND (NOT FirstPassUnknown))
if (Size << 1>MaxCodeLen) WrError(1920);
else
BEGIN
CodeLen=Size;
memset(WAsmCode,0,2*Size);
END
END
return True;
END
return False;
END
static void MakeCode_16c8x(void)
BEGIN
Boolean OK;
Word AdrWord;
int z;
CodeLen=0; DontPrint=False;
/* zu ignorierendes */
if (Memo("")) return;
/* Pseudoanweisungen */
if (DecodePseudo()) return;
/* Anweisungen ohne Argument */
for (z=0; z<FixedOrderCnt; z++)
if (Memo(FixedOrders[z].Name))
BEGIN
if (ArgCnt!=0) WrError(1110);
else
BEGIN
CodeLen=1; WAsmCode[0]=FixedOrders[z].Code;
if (Memo("OPTION")) WrError(130);
END
return;
END
/* nur ein Literal als Argument */
for (z=0; z<LitOrderCnt; z++)
if (Memo(LitOrders[z].Name))
BEGIN
if (ArgCnt!=1) WrError(1110);
else
BEGIN
AdrWord=EvalIntExpression(ArgStr[1],Int8,&OK);
if (OK)
BEGIN
CodeLen=1; WAsmCode[0]=LitOrders[z].Code+(AdrWord & 0xff);
END
END
return;
END
/* W-mit-f-Operationen */
for (z=0; z<AriOrderCnt; z++)
if (Memo(AriOrders[z].Name))
BEGIN
if ((ArgCnt==0) OR (ArgCnt>2)) WrError(1110);
else
BEGIN
AdrWord=EvalFExpression(ArgStr[1],&OK);
if (OK)
BEGIN
WAsmCode[0]=AriOrders[z].Code+AdrWord;
if (ArgCnt==1)
BEGIN
CodeLen=1; WAsmCode[0]+=AriOrders[z].DefaultDir << 7;
END
else if (strcasecmp(ArgStr[2],"W")==0) CodeLen=1;
else if (strcasecmp(ArgStr[2],"F")==0)
BEGIN
CodeLen=1; WAsmCode[0]+=0x80;
END
else
BEGIN
AdrWord=EvalIntExpression(ArgStr[2],UInt1,&OK);
if (OK)
BEGIN
CodeLen=1; WAsmCode[0]+=AdrWord << 7;
END
END
END
END
return;
END
for (z=0; z<BitOrderCnt; z++)
if (Memo(BitOrders[z].Name))
BEGIN
if (ArgCnt!=2) WrError(1110);
else
BEGIN
AdrWord=EvalIntExpression(ArgStr[2],UInt3,&OK);
if (OK)
BEGIN
WAsmCode[0]=EvalFExpression(ArgStr[1],&OK);
if (OK)
BEGIN
CodeLen=1; WAsmCode[0]+=BitOrders[z].Code+(AdrWord << 7);
END
END
END
return;
END
for (z=0; z<FOrderCnt; z++)
if (Memo(FOrders[z].Name))
BEGIN
if (ArgCnt!=1) WrError(1110);
else
BEGIN
AdrWord=EvalFExpression(ArgStr[1],&OK);
if (OK)
BEGIN
CodeLen=1; WAsmCode[0]=FOrders[z].Code+AdrWord;
END
END
return;
END
if (Memo("TRIS"))
BEGIN
if (ArgCnt!=1) WrError(1110);
else
BEGIN
FirstPassUnknown=False;
AdrWord=EvalIntExpression(ArgStr[1],UInt3,&OK);
if (FirstPassUnknown) AdrWord=5;
if (OK)
if (ChkRange(AdrWord,5,6))
BEGIN
CodeLen=1; WAsmCode[0]=0x0060+AdrWord;
ChkSpace(SegData); WrError(130);
END
END
return;
END
if ((Memo("CALL")) OR (Memo("GOTO")))
BEGIN
if (ArgCnt!=1) WrError(1110);
else
BEGIN
AdrWord=EvalIntExpression(ArgStr[1],Int16,&OK);
if (OK)
if (AdrWord>ROMEnd()) WrError(1320);
else
BEGIN
ChkSpace(SegCode);
if (((ProgCounter() ^ AdrWord) & 0x800)!=0)
WAsmCode[CodeLen++]=0x118a+((AdrWord & 0x800) >> 1); /* BCF/BSF 10,3 */
if (((ProgCounter() ^ AdrWord) & 0x1000)!=0)
WAsmCode[CodeLen++]=0x120a+((AdrWord & 0x400) >> 2); /* BCF/BSF 10,4 */
if (Memo("CALL")) WAsmCode[CodeLen++]=0x2000+(AdrWord & 0x7ff);
else WAsmCode[CodeLen++]=0x2800+(AdrWord & 0x7ff);
END
END
return;
END
WrXError(1200,OpPart);
END
static Boolean IsDef_16c8x(void)
BEGIN
return (Memo("SFR"));
END
static Boolean ChkPC_16c8x(LargeWord Addr)
BEGIN
if ((ActPC == SegCode) AND (Addr > SegLimits[SegCode]))
BEGIN
return ((Addr >= 0x2000) AND (Addr <= 0x2007));
END
else return (Addr <= SegLimits[ActPC]);
END
static void SwitchFrom_16c8x(void)
BEGIN
DeinitFields();
END
static void SwitchTo_16c8x(void)
BEGIN
TurnWords=False; ConstMode=ConstModeMoto; SetIsOccupied=False;
PCSymbol="*"; HeaderID=0x70; NOPCode=0x0000;
DivideChars=","; HasAttrs=False;
ValidSegs=(1<<SegCode)+(1<<SegData);
Grans[SegCode]=2; ListGrans[SegCode]=2; SegInits[SegCode]=0;
SegLimits[SegCode] = ROMEnd() + 0x300;
Grans[SegData]=1; ListGrans[SegData]=1; SegInits[SegData]=0;
SegLimits[SegData] = 0x1ff;
ChkPC = ChkPC_16c8x;
MakeCode=MakeCode_16c8x; IsDef=IsDef_16c8x;
SwitchFrom=SwitchFrom_16c8x; InitFields();
END
void code16c8x_init(void)
BEGIN
CPU16C64=AddCPU("16C64",SwitchTo_16c8x);
CPU16C84=AddCPU("16C84",SwitchTo_16c8x);
END
|