-
Notifications
You must be signed in to change notification settings - Fork 1
/
BasTo6809.2.Compile.bas
6935 lines (6701 loc) · 360 KB
/
BasTo6809.2.Compile.bas
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
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
$ScreenHide
$Console
_Dest _Console
' - Now REM's are removed from everyline after the line is sent to the .asm file as it is, so the compiler won't have to deal with them.
Dim Array(270000) As _Unsigned _Byte
Dim DataArray(270000) As _Unsigned _Byte
Dim DataArrayCount As Integer
Dim NumericVariable$(100000)
Dim NumericVariableCount As Integer
Dim StringVariable$(100000)
Dim StringVariableCounter As Integer
Dim NumericArrayVariables$(100000), NumericArrayDimensions(100000) As Integer, NumericArrayDimensionsVal$(100000)
Dim StringArrayVariables$(100000), StringArrayDimensions(100000) As Integer, StringArrayDimensionsVal$(100000)
Dim GeneralCommands$(2000)
Dim GeneralCommandsCount As Integer
Dim NumericCommands$(2000)
Dim NumericCommandsCount As Integer
Dim StringCommands$(2000)
Dim StringCommandsCount As Integer
Dim OperatorCommands$(2000)
Dim OperatorCommandsCount As Integer
Dim GeneralCommandsFound$(2000)
Dim GeneralCommandsFoundCount As Integer
Dim NumericCommandsFound$(2000)
Dim NumericCommandsFoundCount As Integer
Dim StringCommandsFound$(2000)
Dim StringCommandsFoundCount As Integer
Dim DefLabel$(10000)
Dim DefVar(1000) As Integer
DefLabelCount = 0
DefVarCount = 0
' Need to keep track of FOR LOOPs
Dim FORSTack(100)
' Stuff for IF/THEN/ELSE/ENDIF
Dim IFSTack(100) As Integer 'If Stack
Dim ElseStack(100) As Integer ' Else Stack
Dim ELSELocation(100) As Integer 'Flag if the IF has an ELSE
Dim D As Integer
Dim values(100) As Double ' Predefine a large enough array for values
Dim ops(100) As String ' Predefine a large enough array for operators
' Handle command line options
FI = 0
count = _CommandCount
If count = 0 Then
Print "Compiler has no options given to it"
System
End If
nt = 0: newp = 0: endp = 0: BranchCheck = 0: StringArraySize = 255: KeepTempFiles = 0
Optimize = 2 ' Default to optimize level 2
For check = 1 To count
N$ = Command$(check)
If LCase$(Left$(N$, 2)) = "-c" Then BASICMode = Val(Right$(N$, Len(N$) - 2)): GoTo CheckNextCMDOption
If LCase$(Left$(N$, 2)) = "-s" Then StringArraySize = Val(Right$(N$, Len(N$) - 2)): GoTo CheckNextCMDOption
If LCase$(Left$(N$, 2)) = "-o" Then Optimize = Val(Right$(N$, Len(N$) - 2)): GoTo CheckNextCMDOption
If LCase$(Left$(N$, 2)) = "-b" Then BranchCheck = Val(Right$(N$, Len(N$) - 2)): GoTo CheckNextCMDOption
If LCase$(Left$(N$, 2)) = "-v" Then Verbose = Val(Right$(N$, Len(N$) - 2)): GoTo CheckNextCMDOption
If LCase$(Left$(N$, 2)) = "-k" Then KeepTempFiles = 1: GoTo CheckNextCMDOption
' check if we got a file name yet if so then the next filename will be output
OutName$ = N$
CheckNextCMDOption:
Next check
FName$ = "BasicTokenized.bin"
Open FName$ For Append As #1
length = LOF(1)
Close #1
If length < 1 Then Print "Error file: "; FName$; " is 0 bytes. Or doesn't exist.": Kill FName$: System
If Verbose > 0 Then Print "Length of Input file in bytes:"; length
Open FName$ For Binary As #1
Get #1, , INArray()
Close #1
Filesize = length
Open "Basic_Commands/BasTo6809_CommandsGeneral.dat" For Input As #1
GeneralCommandsCount = 0
While EOF(1) = 0
Line Input #1, i$
GeneralCommandsCount = GeneralCommandsCount + 1
GeneralCommands$(GeneralCommandsCount) = i$
Wend
Close #1
Open "Basic_Commands/BasTo6809_CommandsNumeric.dat" For Input As #1
NumericCommandsCount = 0
While EOF(1) = 0
Line Input #1, i$
NumericCommandsCount = NumericCommandsCount + 1
NumericCommands$(NumericCommandsCount) = i$
Wend
Close #1
Open "Basic_Commands/BasTo6809_CommandsString.dat" For Input As #1
StringCommandsCount = 0
While EOF(1) = 0
Line Input #1, i$
StringCommandsCount = StringCommandsCount + 1
StringCommands$(StringCommandsCount) = i$
Wend
Close #1
Open "Basic_Commands/BasTo6809_CommandsOperators.dat" For Input As #1
OperatorCommandsCount = 0
While EOF(1) = 0
Line Input #1, i$
i$ = Right$(i$, Len(i$) - 1)
i$ = Left$(i$, InStr(i$, ",") - 2)
OperatorCommandsCount = OperatorCommandsCount + 1
OperatorCommands$(OperatorCommandsCount) = i$
Wend
Close #1
' Fill the Array() with the Tokenized version of the BASIC program
FName$ = "BasicTokenized.bin"
Open FName$ For Append As #1
length = LOF(1)
Close #1
If length < 1 Then Print "Error file: "; FName$; " is 0 bytes. Or doesn't exist.": Kill FName$: End
If Verbose > 0 Then Print "Length of Input file in bytes:"; length
Open FName$ For Binary As #1
Get #1, , Array()
Close #1
Check$ = "REM": GoSub FindGenCommandNumber ' Gets the General Command number of Check$, returns with number in ii, Found=1 if found and Found=0 if not found
REM_CMD = ii
Check$ = "'": GoSub FindGenCommandNumber ' Gets the General Command number of Check$, returns with number in ii, Found=1 if found and Found=0 if not found
REM_Apostraphe_CMD = ii
Check$ = "STEP": GoSub FindGenCommandNumber ' Gets the General Command number of Check$, returns with number in ii, Found=1 if found and Found=0 if not found
STEP_CMD = ii
Check$ = "LET": GoSub FindGenCommandNumber ' Gets the General Command number of Check$, returns with number in ii, Found=1 if found and Found=0 if not found
LET_CMD = ii
Check$ = "TO": GoSub FindGenCommandNumber ' Gets the General Command number of Check$, returns with number in ii, Found=1 if found and Found=0 if not found
TO_CMD = ii
Check$ = "GOTO": GoSub FindGenCommandNumber ' Gets the General Command number of Check$, returns with number in ii, Found=1 if found and Found=0 if not found
GOTO_CMD = ii
Check$ = "GOSUB": GoSub FindGenCommandNumber ' Gets the General Command number of Check$, returns with number in ii, Found=1 if found and Found=0 if not found
GOSUB_CMD = ii
Check$ = "SELECT": GoSub FindGenCommandNumber ' Gets the General Command number of Check$, returns with number in ii, Found=1 if found and Found=0 if not found
SELECT_CMD = ii
Check$ = "ON": GoSub FindGenCommandNumber ' Gets the General Command number of Check$, returns with number in ii, Found=1 if found and Found=0 if not found
ON_CMD = ii
Check$ = "OFF": GoSub FindGenCommandNumber ' Gets the General Command number of Check$, returns with number in ii, Found=1 if found and Found=0 if not found
OFF_CMD = ii
Check$ = "PSET": GoSub FindGenCommandNumber ' Gets the General Command number of Check$, returns with number in ii, Found=1 if found and Found=0 if not found
PSET_CMD = ii
Check$ = "PRESET": GoSub FindGenCommandNumber ' Gets the General Command number of Check$, returns with number in ii, Found=1 if found and Found=0 if not found
PRESET_CMD = ii
Check$ = "DO": GoSub FindGenCommandNumber ' Gets the General Command number of Check$, returns with number in ii, Found=1 if found and Found=0 if not found
DO_CMD = ii
Check$ = "FOR": GoSub FindGenCommandNumber ' Gets the General Command number of Check$, returns with number in ii, Found=1 if found and Found=0 if not found
FOR_CMD = ii
Check$ = "WHILE": GoSub FindGenCommandNumber ' Gets the General Command number of Check$, returns with number in ii, Found=1 if found and Found=0 if not found
WHILE_CMD = ii
Check$ = "UNTIL": GoSub FindGenCommandNumber ' Gets the General Command number of Check$, returns with number in ii, Found=1 if found and Found=0 if not found
UNTIL_CMD = ii
Check$ = "CASE": GoSub FindGenCommandNumber ' Gets the General Command number of Check$, returns with number in ii, Found=1 if found and Found=0 if not found
CASE_CMD = ii
Check$ = "EVERYCASE": GoSub FindGenCommandNumber ' Gets the General Command number of Check$, returns with number in ii, Found=1 if found and Found=0 if not found
EVERYCASE_CMD = ii
Check$ = "IS": GoSub FindGenCommandNumber ' Gets the General Command number of Check$, returns with number in ii, Found=1 if found and Found=0 if not found
IS_CMD = ii
Check$ = "TIMER": GoSub FindGenCommandNumber ' Gets the General Command number of Check$, returns with number in ii, Found=1 if found and Found=0 if not found
TIMER_CMD = ii
Check$ = "END": GoSub FindGenCommandNumber ' Gets the General Command number of Check$, returns with number in ii, Found=1 if found and Found=0 if not found
END_CMD = ii
Check$ = "IF": GoSub FindGenCommandNumber ' Gets the General Command number of Check$, returns with number in ii, Found=1 if found and Found=0 if not found
IF_CMD = ii
Check$ = "THEN": GoSub FindGenCommandNumber ' Gets the General Command number of Check$, returns with number in ii, Found=1 if found and Found=0 if not found
THEN_CMD = ii
Check$ = "ELSE": GoSub FindGenCommandNumber ' Gets the General Command number of Check$, returns with number in ii, Found=1 if found and Found=0 if not found
ELSE_CMD = ii
Check$ = "TAB": GoSub FindNumCommandNumber ' Gets the Numeric Command number of Check$, returns with number in ii, Found=1 if found and Found=0 if not found
TAB_CMD = ii
x = 0
INx = 0
lc = 0
LineCount = 0
StringVariableCounter = 0 ' String variable name count
CommandsUsedCounter = 0 ' Counter for unique commmands used
NumArrayVarsUsedCounter = 0 ' Counter for number of NumericArrays used
StringArrayVarsUsedCounter = 0 ' Counter for number of String Array Variables used
' Fill the arrays from files
NumericVariableCount = 0
Open "NumericVariablesUsed.txt" For Input As #1
While EOF(1) = 0
Input #1, NumericVariable$(NumericVariableCount)
NumericVariableCount = NumericVariableCount + 1
Wend
Close #1
StringVariableCounter = 0
Open "StringVariablesUsed.txt" For Input As #1
While EOF(1) = 0
Input #1, StringVariable$(StringVariableCounter)
StringVariableCounter = StringVariableCounter + 1
Wend
Close #1
GeneralCommandsFoundCount = 0
Open "GeneralCommandsFound.txt" For Input As #1
While EOF(1) = 0
Input #1, GeneralCommandsFound$(GeneralCommandsFoundCount)
GeneralCommandsFoundCount = GeneralCommandsFoundCount + 1
Wend
Close #1
StringCommandsFoundCount = 0
Open "StringCommandsFound.txt" For Input As #1
While EOF(1) = 0
Input #1, StringCommandsFound$(StringCommandsFoundCount)
StringCommandsFoundCount = StringCommandsFoundCount + 1
Wend
Close #1
NumericCommandsFoundCount = 0
Open "NumericCommandsFound.txt" For Input As #1
While EOF(1) = 0
Input #1, NumericCommandsFound$(NumericCommandsFoundCount)
NumericCommandsFoundCount = NumericCommandsFoundCount + 1
Wend
Close #1
NumericArrayVarsUsedCounter = 0
Open "NumericArrayVarsUsed.txt" For Input As #1
While EOF(1) = 0
Input #1, NumericArrayVariables$(NumericArrayVarsUsedCounter)
Input #1, NumericArrayDimensions(NumericArrayVarsUsedCounter)
NumericArrayVarsUsedCounter = NumericArrayVarsUsedCounter + 1
Wend
Close #1
StringArrayVarsUsedCounter = 0
Open "StringArrayVarsUsed.txt" For Input As #1
While EOF(1) = 0
Input #1, StringArrayVariables$(StringArrayVarsUsedCounter)
Input #1, StringArrayDimensions(StringArrayVarsUsedCounter)
StringArrayVarsUsedCounter = StringArrayVarsUsedCounter + 1
Wend
Close #1
DefLabelCount = 0
Open "DefFNUsed.txt" For Input As #1
While EOF(1) = 0
Input #1, DefLabel$(DefLabelCount)
DefLabelCount = DefLabelCount + 1
Wend
Close #1
DefVarCount = 0
Open "DefVarUsed.txt" For Input As #1
While EOF(1) = 0
Input #1, DefVar(DefVarCount)
DefVarCount = DefVarCount + 1
Wend
Close #1
' Start writing to the .asm file
Open OutName$ For Append As #1
' Main process loop
' Found a general command, add it to the list and tokenize it
' Tokens for variables types and Commands
' F0 = Numeric Array Variable
' F1 = String Array Variable
' F2 = Regular Numeric Variable
' F3 = Regular String Variable
' F5 = + EOL($0D) or + Colon($3A)
' FC = Operator Command
' FD = String Command
' FE = Numeric Command
' FF = General Command
x = 0
vOld = 0
DoAnotherLine:
If Array(x) = &HF5 Then
x = x + 2 ' Skip past Colon or EOL
End If
If vOld <> Asc(":") Then
' We are still on the same line, don't check for a label or line number
v = Array(x): x = x + 1
Else
v = 0
End If
While x < Filesize
' Do if we didn't just process a colon otherwise we're still on the same line so don't look for a label or line number
' Every Tokenized BASIC line starts with a byte that is the length of the Line number/Label
' If it's zero there is no line number or label on this line
OldLineLabel$ = linelabel$
linelabel$ = ""
If v = 0 Then
linelabel$ = OldLineLabel$ + "b"
GoTo SkipLabel ' Skip getting a line number or label from lines that don't have them
End If
For l = 1 To v
v = Array(x): x = x + 1
linelabel$ = linelabel$ + Chr$(v)
Next l
If Verbose > 1 And linelabel$ <> "" Then Print "Working on Line: "; linelabel$
Print #1, "_L"; linelabel$
SkipLabel:
' Decode line so we can print it as normal in the .asm file
C$ = ""
Start = x ' Save where we are
v = Array(x): x = x + 1
If v = &HF5 And Array(x) = &H0D Then vOld = &H0D: v = Array(x): x = x + 1: GoTo DoAnotherLine
Do Until v = &HF5 And (Array(x) = &H0D Or Array(x) = &H3A) ' Is it the end of a line? or colon?
If v >= &HF0 Then
Lastv = v
GoSub DecodeToken ' return with decoded command/variable in Temp$
C$ = C$ + Temp$
If Lastv = &HFF Then C$ = C$ + " " ' Add a space after a general command
v = 0
Else
C$ = C$ + Chr$(v)
End If
v = Array(x): x = x + 1
Loop
v = Array(x): x = x + 1
vOld = v ' Save it as we might have reached a colon
' Print the line we are working on to the .asm file
If C$ <> "" Then Print #1, "; "; C$: C$ = ""
x = Start ' Restore where to start (new line or after a colon)
'Check if this line starts with a REM or '
'Check for REM or '
If Array(x) = &HFF Then
v = (Array(x + 1)) * 256 + Array(x + 2)
If v = REM_CMD Or v = REM_Apostraphe_CMD Then
' this line starts with a REM, handle it
x = x + 3
GoSub DoREM ' Go handle a new line that starts with a REM or '
GoTo DoAnotherLine ' Jump to the general command pointed at by V, Ends with a RETURN
End If
End If
' Check for a REMarks on the rest of this line, and modify line so the REMarks are skipped
RemStart = 0
Check1 = REM_CMD \ 256: Check2 = REM_CMD And 255
Check3 = REM_Apostraphe_CMD \ 256: Check4 = REM_Apostraphe_CMD And 255
GoSub GetGenExpression ' Returns with single expression in GenExpression$
Do Until GenExpression$ = Chr$(&HF5) + Chr$(&H0D) Or GenExpression$ = Chr$(&HF5) + Chr$(&H3A)
If GenExpression$ = Chr$(&HFF) + Chr$(Check1) + Chr$(Check2) Or GenExpression$ = Chr$(&HFF) + Chr$(Check3) + Chr$(Check4) Then
' This line has a REM, copy stuff before the REM to the end of the line and move x pointer to the start of actual commands
RemStart = x - 4: Exit Do
Else
Expression$ = Expression$ + GenExpression$
End If
GoSub GetGenExpression ' Returns with single expression in GenExpression$
Loop
If RemStart > 0 Then
' this line has remarks to be ignored
' x points at the start of the next line or just after a colon
Endx = x - 3 'Ignore the $F5 & $0D or $3A
AmountToCopy = RemStart - Start
Difference = Endx - RemStart
For ii = Endx To Endx - AmountToCopy Step -1
Array(ii) = Array(ii - Difference)
Next ii
Start = Endx - AmountToCopy
End If
' Handle the actual line here:
x = Start ' Restore where to start (new line or after a colon)
' Figure out what type of token we have and deal with it
v = Array(x): x = x + 1 ' get the token
If Verbose > 3 Then Print "Token is: "; Hex$(v)
If v < &HF0 And v > &HF3 And v <> &HFF Then
Print "Error on or just after "; linelabel; " Needs either a variable or a General command, but found ";
If v = &HFC Then Print "Operator Command": System
If v = &HFD Then Print "String Command": System
If v = &HFE Then Print "Numeric Command": System
Print "Bad syntax on";: GoTo FoundError
End If
If v = &HFF Then
' Found a general command
v = Array(x) * 256 + Array(x + 1): x = x + 2
If v = LET_CMD Then
'We have the LET command, ignore this
v = Array(x): x = x + 1 ' get the variable to handle
Else
If Verbose > 3 Then Print "Found a General command: "; GeneralCommands$(v)
GoSub JumpToGeneralCommand
GoTo DoAnotherLine ' Jump to the general command pointed at by V, Ends with a RETURN
End If
End If
'Print "v="; Hex$(v)
If v = &HF0 Then GoSub HandleNumericArray: GoTo DoAnotherLine
If v = &HF1 Then GoSub HandleStringArray: GoTo DoAnotherLine
If v = &HF2 Then GoSub HandleNumericVariable: GoTo DoAnotherLine
If v = &HF3 Then GoSub HandleStringVariable: GoTo DoAnotherLine
Wend
Print #1, "EXITProgram:"
A$ = "ORCC": B$ = "#$50": C$ = "Turn off the interrupts": GoSub AssemOut
' Restore the IRQ jump address
A$ = "LDX": B$ = "$FFFE": C$ = "Get the RESET location": GoSub AssemOut
A$ = "CMPX": B$ = "#$8C1B": C$ = "Check if it's a CoCo 3": GoSub AssemOut
A$ = "BNE": B$ = "RestoreCoCo1": C$ = "Setup IRQ, using CoCo 1 IRQ Jump location": GoSub AssemOut
A$ = "LDX": B$ = "#$FEF7": C$ = "X = Address for the COCO 3 IRQ JMP": GoSub AssemOut
A$ = "BRA": B$ = ">": C$ = "Skip ahead": GoSub AssemOut
Z$ = "RestoreCoCo1": GoSub AssemOut
A$ = "LDX": B$ = "#$010C": C$ = "X = Address for the COCO 1 IRQ JMP": GoSub AssemOut
Z$ = "!"
' Restore it
A$ = "LDU": B$ = "#OriginalIRQ": C$ = "U = Address of the original IRQ": GoSub AssemOut
A$ = "LDA": B$ = ",U": C$ = "A = Branch Instruction": GoSub AssemOut
A$ = "STA": B$ = ",X": C$ = "Save Branch Instruction": GoSub AssemOut
A$ = "LDD": B$ = "1,U": C$ = "D = address": GoSub AssemOut
A$ = "STD": B$ = "1,X": C$ = "Restore the Address of the IRQ": GoSub AssemOut
Print #1, "RestoreStack:"
A$ = "LDS": B$ = "#$0000": C$ = "Selfmodified when this programs starts - this restores S just how BASIC had it": GoSub AssemOut
A$ = "PULS": B$ = "CC,D,DP,X,Y,U,PC": C$ = "Restore the original BASIC Register values and return to BASIC, if it can": GoSub AssemOut
' Add data Table if needed
Print #1, "DataStart:"
If DataArrayCount > 0 Then
For x = 0 To DataArrayCount - 1 Step 4
Print #1, " FQB $";
q1$ = Right$("00" + Hex$(DataArray(x)), 2) + Right$("00" + Hex$(DataArray(x + 1)), 2)
q2$ = Right$("00" + Hex$(DataArray(x + 2)), 2) + Right$("00" + Hex$(DataArray(x + 3)), 2)
Print #1, q1$; q2$; " ;";
Print #1, Right$("0000" + Hex$(x + a), 4); ": ";
Print #1, Right$("00" + Hex$(DataArray(x)), 2); " "; Right$("00" + Hex$(DataArray(x + 1)), 2); " ";
Print #1, Right$("00" + Hex$(DataArray(x + 2)), 2); " "; Right$("00" + Hex$(DataArray(x + 3)), 2)
Next x
End If
A$ = "END": B$ = "START": GoSub AssemOut
Close #1
' Check if we should optimize the program
If Optimize > 0 Then
' Optimize it
' At this point the program will execute but we can remove extra lines of code as the numeric parser always exits with a STD _Var_PF00
' It has been flagged with "*XX We can delete the line above XX*" a line after the last STD _Var_PF00 (that can be erased)
' Let's remove those lines below
Open OutName$ For Input As #1
Open "Temp.txt" For Output As #2
CheckForNumericExtra:
While EOF(1) = 0
Line Input #1, i$
While EOF(1) = 0
Line Input #1, i2$
If i2$ = "*XX We can delete the line above XX*" Then
GoTo CheckForNumericExtra
Else
Print #2, i$
i$ = i2$
End If
Wend
Print #2, i$
Wend
Close #1
Close #2
Kill OutName$ 'Kill the original
Name "Temp.txt" As OutName$ ' Rename Temp.txt to OutName$
End If
If Optimize > 1 Then
' - Add optimize option 2 which will find (similar to):
' LDD xxxx
' STD _Var_PF00
' LDD yyyy
' STD _Var_PF01
' LDD _Var_PF00
' ADDD _Var_PF01
' And replace it with:
' LDD xxxx
' ADDD yyyy
Dim buffer$(6)
fileName$ = OutName$
' Open the input file for reading
Open fileName$ For Input As #1
' Create a temporary output file
outputFile = FreeFile
Open "temp.asm" For Output As #2
Do While Not EOF(1)
' Read the next line
Line Input #1, line$
' Shift the buffer
For i = 1 To 5
buffer$(i) = buffer$(i + 1)
Next i
buffer$(6) = line$
' Check if the buffer matches the pattern
If Left$(buffer$(1), 16) = " LDD " AND _
Left$(buffer$(2), 25) = " STD _Var_PF00" AND _
Left$(buffer$(3), 16) = " LDD " AND _
Left$(buffer$(4), 25) = " STD _Var_PF01" AND _
Left$(buffer$(5), 25) = " LDD _Var_PF00" Then
' Extract the instruction from the last line
lastLine$ = buffer$(6)
lastLine$ = Mid$(lastLine$, 9, InStr(9, lastLine$, " ") - 9)
' Write the replacement lines
Print #2, buffer$(1)
Print #2, " "; lastLine$; " "; Mid$(buffer$(3), 17, Len(buffer$(3)) - 17)
' Clear the buffer
For i = 2 To 6
Line Input #1, line$
buffer$(i) = line$
Next i
Else
' Write the buffered line if it's not part of the pattern
Print #2, buffer$(1)
End If
Loop
' Write the remaining lines in the buffer
For i = 2 To 6
If buffer$(i) <> "" Then
Print #2, buffer$(i)
End If
Next i
' Close the files
Close #1
Close #2
' Replace the original file with the modified file
Kill fileName$
Name "temp.asm" As fileName$
End If
If KeepTempFiles = 0 Then
'Erase the temp files
Kill "NumericVariablesUsed.txt"
Kill "StringVariablesUsed.txt"
Kill "GeneralCommandsFound.txt"
Kill "StringCommandsFound.txt"
Kill "NumericCommandsFound.txt"
Kill "NumericArrayVarsUsed.txt"
Kill "StringArrayVarsUsed.txt"
Kill "DefFNUsed.txt"
Kill "DefVarUsed.txt"
Kill "BASIC_Text.bas"
Kill "BasicTokenized.bin"
Kill "BasicTokenizedB4Pass2.bin"
End If
If Verbose > 0 Then Print "All Done :)"
System
' Returns with X pointing at the memory location for the Numeric Array, D is unchanged
MakeXPointAtNumericArray:
A$ = "PSHS": B$ = "D": C$ = "Save D": GoSub AssemOut
If Verbose > 3 Then Print "Going to deal with Numeric array"
v = Array(x) * 256 + Array(x + 1): x = x + 2
NV$ = NumericArrayVariables$(v)
If Verbose > 3 Then Print "Numeric array variable is: "; NV$
NumDims = Array(x): x = x + 3 ' Consume the $F5 & open bracket
If Verbose > 3 Then Print "Number of dimensons with this array:"; NumDims
If NumDims = 1 Then ' does it only have one dimension? if so it's simpler
' Yes just a single dimension array
If Verbose > 3 Then Print "handling a one dimensional array"
If Verbose > 3 Then Print #1, "; Started handling the array here:"
GoSub GetExpressionB4EndBracket: x = x + 2 ' Get the expression that ends with a close bracket & move past it
ExType = 0: GoSub ParseNumericExpression ' Parse the Numeric Expression returns with D = the value
Else
' Handle multi dimensional arrays
' Offset = (((d1 * NumElements2 + d2) * NumElements3 + d3) * NumElements4 + d4) * size of each element (2 for 16 bit integers) (256 for strings)
If Verbose > 3 Then Print "handling a multi dimensional array"
A$ = "LDX": B$ = "#_ArrayNum_" + NV$ + "+1": C$ = " X points at the 2nd array Element size": GoSub AssemOut ' X points at the 2nd array Element size
A$ = "PSHS": B$ = "X": C$ = "Save X on the stack, so we can point to it and just in case we have arrays inside arrays...": GoSub AssemOut
' Get d1
GoSub GetExpressionB4Comma: x = x + 2 ' Get the value to parse that is before the comma "," move pointer past the comma
ExType = 0: GoSub ParseNumericExpression ' Parse the Numeric Expression returns with D = the value
A$ = "PSHS": B$ = "D": C$ = "Save the Multiplicand": GoSub AssemOut ' D = d1
If NumDims = 2 Then GoTo DoNumArrCloseBracket0 ' skip ahead if we only have 2 dimension in the array
'Get NumElements2
A$ = "LDB": B$ = "[2,S]": C$ = "Get the NumElement2": GoSub AssemOut
A$ = "LDA": B$ = "1,S": C$ = "A = Low byte of the 16 bit number": GoSub AssemOut ' LSB of d1
A$ = "MUL": C$ = "Multiply A * B, result in D": GoSub AssemOut ' D=d1* NumElements2
A$ = "PSHS": B$ = "D": C$ = "Save the result on the stack": GoSub AssemOut ' Save it on the stack
A$ = "INC": B$ = "5,S": C$ = "Increment NumElement LSB pointer": GoSub AssemOut
A$ = "BNE": B$ = ">": C$ = "If LSB <>0 then skip ahead": GoSub AssemOut
A$ = "INC": B$ = "4,S": C$ = "If the LSB just became zero then Increment NumElement MSB pointer": GoSub AssemOut
Z$ = "!": GoSub AssemOut ' Num Element Pointer is now pointing at NumElements3
'Get d2
GoSub GetExpressionB4Comma: x = x + 2 ' Get the value to parse that is before the comma "," move pointer past the comma
ExType = 0: GoSub ParseNumericExpression ' Parse the Numeric Expression returns with D = the value
' Add d2
A$ = "ADDD": B$ = ",S": C$ = "D=D+ old D": GoSub AssemOut
A$ = "STD": B$ = ",S": C$ = "Save New D on the stack": GoSub AssemOut
If Verbose > 2 Then Print "number of dimensions:"; NumDims
If NumDims > 3 Then
For TempNumArray1 = 3 To NumDims - 1 ' Number of dimensions in the array - 1 since last wont have a comma seperating it
' Get NumElementsX
' Get NumElementsX
A$ = "LDB": B$ = "[2,S]": C$ = "Get the NumElement": GoSub AssemOut
A$ = "LDA": B$ = "1,S": C$ = "A = Low byte of the 16 bit number": GoSub AssemOut
A$ = "MUL": C$ = "Multiply A * B, result in D": GoSub AssemOut ' Need 16bit muliply
A$ = "STD": B$ = ",S": C$ = "Save the result on the stack": GoSub AssemOut
A$ = "INC": B$ = "5,S": C$ = "Increment NumElement LSB pointer": GoSub AssemOut
A$ = "BNE": B$ = ">": C$ = "If LSB <>0 then skip ahead": GoSub AssemOut
A$ = "INC": B$ = "4,S": C$ = "If the LSB just became zero then Increment NumElement MSB pointer": GoSub AssemOut
Z$ = "!": GoSub AssemOut
' Add dX
GoSub GetExpressionB4Comma: x = x + 2 ' Get the value to parse that is before the comma "," move pointer past the comma
ExType = 0: GoSub ParseNumericExpression ' Parse the Numeric Expression returns with D = the value
A$ = "ADDD": B$ = ",S": C$ = "D=D+ old D": GoSub AssemOut
A$ = "STD": B$ = ",S": C$ = "Save New D on the stack": GoSub AssemOut
Next TempNumArray1
End If
' Last dimension value ends with a close bracket
DoNumArrCloseBracket0:
' Get NumElementsX
A$ = "LDB": B$ = "[2,S]": C$ = "Get the NumElement": GoSub AssemOut
A$ = "LDA": B$ = "1,S": C$ = "A = Low byte of the 16 bit number": GoSub AssemOut
A$ = "MUL": C$ = "Multiply A * B, result in D": GoSub AssemOut ' Need 16bit multiply
' Add dX
GoSub GetExpressionB4EndBracket: x = x + 2 ' Get the expression that ends with a close bracket & move past it
ExType = 0: GoSub ParseNumericExpression ' Parse the Numeric Expression returns with D = the value
A$ = "ADDD": B$ = ",S": C$ = "D=D+ old D": GoSub AssemOut
A$ = "LEAS": B$ = "6,S": C$ = "Fix the stack": GoSub AssemOut
End If
A$ = "LSLB": GoSub AssemOut
A$ = "ROLA": C$ = "D=D*2, 16 bit integers in the numeric array": GoSub AssemOut
num = NumDims: GoSub NumAsString 'Convert number in Num to a string without spaces as Num$
A$ = "ADDD": B$ = "#_ArrayNum_" + NV$ + "+" + Num$: C$ = "D points at the start of the destination mem location in the array": GoSub AssemOut
A$ = "TFR": B$ = "D,X": C$ = "Make X the pointer to where this array is stored in RAM": GoSub AssemOut
A$ = "PULS": B$ = "D": C$ = "Save the memory location to write the value that this array equals": GoSub AssemOut
Return 'X pointing at the memory location for the Numeric Array, D is unchanged
' Exits with a Return
HandleNumericArray:
If Verbose > 3 Then Print "Going to deal with Numeric array"
v = Array(x) * 256 + Array(x + 1): x = x + 2
NV$ = NumericArrayVariables$(v)
If Verbose > 3 Then Print "Numeric array variable is: "; NV$
NumDims = Array(x): x = x + 3 ' Consume the $F5 & open bracket
If Verbose > 3 Then Print "Number of dimensons with this array:"; NumDims
If NumDims = 1 Then ' does it only have one dimension? if so it's simpler
' Yes just a single dimension array
If Verbose > 3 Then Print "handling a one dimensional array"
If Verbose > 3 Then Print #1, "; Started handling the array here:"
GoSub GetExpressionB4EndBracket: x = x + 2 ' Get the expression that ends with a close bracket & move past it
ExType = 0: GoSub ParseNumericExpression ' Parse the Numeric Expression returns with D = the value
Else
' Handle multi dimensional arrays
' Offset = (((d1 * NumElements2 + d2) * NumElements3 + d3) * NumElements4 + d4) * size of each element (2 for 16 bit integers) (256 for strings)
If Verbose > 3 Then Print "handling a multi dimensional array"
A$ = "LDX": B$ = "#_ArrayNum_" + NV$ + "+1": C$ = "X points at the 2nd array Element size": GoSub AssemOut ' X points at the 2nd array Element size
A$ = "PSHS": B$ = "X": C$ = "Save X on the stack, so we can point to it and just in case we have arrays inside arrays...": GoSub AssemOut
' Get d1
GoSub GetExpressionB4Comma: x = x + 2 ' Get the value to parse that is before the comma "," and move past it
ExType = 0: GoSub ParseNumericExpression ' Parse the Numeric Expression returns with D = the value
A$ = "PSHS": B$ = "D": C$ = "Save the Multiplicand": GoSub AssemOut ' D = d1
If NumDims = 2 Then GoTo DoNumArrCloseBracket1 ' skip ahead if we only have 2 dimension in the array
'Get NumElements2
A$ = "LDB": B$ = "[2,S]": C$ = "Get the NumElement2": GoSub AssemOut
A$ = "LDA": B$ = "1,S": C$ = "A = Low byte of the 16 bit number": GoSub AssemOut ' LSB of d1
A$ = "MUL": C$ = "Multiply A * B, result in D": GoSub AssemOut ' D=d1* NumElements2
A$ = "PSHS": B$ = "D": C$ = "Save the result on the stack": GoSub AssemOut ' Save it on the stack
A$ = "INC": B$ = "5,S": C$ = "Increment NumElement LSB pointer": GoSub AssemOut
A$ = "BNE": B$ = ">": C$ = "If LSB <>0 then skip ahead": GoSub AssemOut
A$ = "INC": B$ = "4,S": C$ = "If the LSB just became zero then Increment NumElement MSB pointer": GoSub AssemOut
Z$ = "!": GoSub AssemOut ' Num Element Pointer is now pointing at NumElements3
'Get d2
GoSub GetExpressionB4Comma: x = x + 2 ' Get the value to parse that is before the comma "," and move past it
ExType = 0: GoSub ParseNumericExpression ' Parse the Numeric Expression returns with D = the value
' Add d2
A$ = "ADDD": B$ = ",S": C$ = "D=D+ old D": GoSub AssemOut
A$ = "STD": B$ = ",S": C$ = "Save New D on the stack": GoSub AssemOut
If Verbose > 2 Then Print "number of dimensions:"; NumDims
If NumDims > 3 Then
For TempNumArray1 = 3 To NumDims - 1 ' Number of dimensions in the array - 1 since last ont have a comma seperating it
' Get NumElementsX
A$ = "LDB": B$ = "[2,S]": C$ = "Get the NumElement": GoSub AssemOut
A$ = "LDA": B$ = "1,S": C$ = "A = Low byte of the 16 bit number": GoSub AssemOut
A$ = "MUL": C$ = "Multiply A * B, result in D": GoSub AssemOut ' Need 16bit muliply
A$ = "STD": B$ = ",S": C$ = "Save the result on the stack": GoSub AssemOut
A$ = "INC": B$ = "5,S": C$ = "Increment NumElement LSB pointer": GoSub AssemOut
A$ = "BNE": B$ = ">": C$ = "If LSB <>0 then skip ahead": GoSub AssemOut
A$ = "INC": B$ = "4,S": C$ = "If the LSB just became zero then Increment NumElement MSB pointer": GoSub AssemOut
Z$ = "!": GoSub AssemOut
' Add dX
GoSub GetExpressionB4Comma: x = x + 2 ' Get the value to parse that is before the comma "," and move past it
ExType = 0: GoSub ParseNumericExpression ' Parse the Numeric Expression returns with D = the value
A$ = "ADDD": B$ = ",S": C$ = "D=D+ old D": GoSub AssemOut
A$ = "STD": B$ = ",S": C$ = "Save New D on the stack": GoSub AssemOut
Next TempNumArray1
End If
DoNumArrCloseBracket1:
' Last dimension value ends with a close bracket
' Get NumElementsX
A$ = "LDB": B$ = "[2,S]": C$ = "Get the NumElement": GoSub AssemOut
A$ = "LDA": B$ = "1,S": C$ = "A = Low byte of the 16 bit number": GoSub AssemOut
A$ = "MUL": C$ = "Multiply A * B, result in D": GoSub AssemOut ' Need 16bit multiply
' Add dX
GoSub GetExpressionB4EndBracket: x = x + 2 ' Get the expression that ends with a close bracket & move past it
ExType = 0: GoSub ParseNumericExpression ' Parse the Numeric Expression returns with D = the value
A$ = "ADDD": B$ = ",S": C$ = "D=D+ old D": GoSub AssemOut
A$ = "LEAS": B$ = "6,S": C$ = "Fix the stack": GoSub AssemOut
End If
A$ = "LSLB": GoSub AssemOut
A$ = "ROLA": C$ = "D=D*2, 16 bit integers in the numeric array": GoSub AssemOut
num = NumDims: GoSub NumAsString 'Convert number in Num to a string without spaces as Num$
A$ = "ADDD": B$ = "#_ArrayNum_" + NV$ + "+" + Num$: C$ = "D points at the start of the destination string": GoSub AssemOut
A$ = "PSHS": B$ = "D": C$ = "Save the memory location to write the value that this array equals": GoSub AssemOut
v = Array(x): x = x + 1
If v <> &HFC Then Print "Syntax error, looking for = sign while getting Numeric Array in";: GoTo FoundError
v = Array(x): x = x + 1
If v <> &H3D Then Print "Syntax error, looking for = sign in while getting Numeric Array in";: GoTo FoundError
'Get an expression that ends with an EOL
GoSub GetExpressionB4EOL ' Get the expression before an End of Line
ExType = 0: GoSub ParseNumericExpression ' Parse the Numeric Expression
A$ = "STD": B$ = "[,S++]": C$ = "Save D in the array, and fix the stack": GoSub AssemOut
Return
' Returns with X pointing at the memory location for the String Array, D is unchanged
MakeXPointAtStringArray:
If Verbose > 3 Then Print "Going to deal with String array"
v = Array(x) * 256 + Array(x + 1): x = x + 2
SV$ = StringArrayVariables$(v)
If Verbose > 3 Then Print "String array variable is: "; SV$
NumDims = Array(x): x = x + 3 ' Consume the $F5 & open bracket
If Verbose > 3 Then Print "Number of dimensons with this array:"; NumDims
If NumDims = 1 Then ' does it only have one dimension? if so it's simpler
' Yes just a single dimension array
If Verbose > 3 Then Print "handling a one dimensional array"
If Verbose > 3 Then Print #1, "; Started handling the array here:"
GoSub GetExpressionB4EndBracket: x = x + 2 ' Get the expression that ends with a close bracket
ExType = 0: GoSub ParseNumericExpression ' Parse the Numeric Expression returns with D = the value
Else
' Handle multi dimensional arrays
' Offset = (((d1 * NumElements2 + d2) * NumElements3 + d3) * NumElements4 + d4) * size of each element (2 for 16 bit integers) (256 for strings)
If Verbose > 3 Then Print "handling a multi dimensional array"
A$ = "LDX": B$ = "#_ArrayStr_" + SV$ + "+1": C$ = "X points at the 2nd array Element size": GoSub AssemOut ' X points at the 2nd array Element size
A$ = "PSHS": B$ = "X": C$ = "Save X on the stack, so we can point to it and just in case we have arrays inside arrays...": GoSub AssemOut
' Get d1
GoSub GetExpressionB4Comma: x = x + 2 ' Get the value to parse that is before the comma "," & move past it
ExType = 0: GoSub ParseNumericExpression ' Parse the Numeric Expression returns with D = the value
A$ = "PSHS": B$ = "D": C$ = "Save the Multiplicand": GoSub AssemOut ' D = d1
If NumDims = 2 Then GoTo DoStrArrCloseBracket0 ' skip ahead if we only have 2 dimension in the array
'Get NumElements2
A$ = "LDB": B$ = "[2,S]": C$ = "Get the NumElement2": GoSub AssemOut
A$ = "LDA": B$ = "1,S": C$ = "A = Low byte of the 16 bit number": GoSub AssemOut ' LSB of d1
A$ = "MUL": C$ = "Multiply A * B, result in D": GoSub AssemOut ' D=d1* NumElements2
A$ = "PSHS": B$ = "D": C$ = "Save the result on the stack": GoSub AssemOut ' Save it on the stack
A$ = "INC": B$ = "5,S": C$ = "Increment NumElement LSB pointer": GoSub AssemOut
A$ = "BNE": B$ = ">": C$ = "If LSB <>0 then skip ahead": GoSub AssemOut
A$ = "INC": B$ = "4,S": C$ = "If the LSB just became zero then Increment NumElement MSB pointer": GoSub AssemOut
Z$ = "!": GoSub AssemOut ' Num Element Pointer is now pointing at NumElements3
'Get d2
GoSub GetExpressionB4Comma: x = x + 2 ' Get the value to parse that is before the comma "," & move past it
ExType = 0: GoSub ParseNumericExpression ' Parse the Numeric Expression returns with D = the value
' Add d2
A$ = "ADDD": B$ = ",S": C$ = "D=D+ old D": GoSub AssemOut
A$ = "STD": B$ = ",S": C$ = "Save New D on the stack": GoSub AssemOut
If Verbose > 2 Then Print "number of dimensions:"; NumDims
If NumDims > 3 Then
For TempNumArray1 = 3 To NumDims - 1 ' Number of dimensions in the array - 1 since last wont have a comma seperating it
' Get NumElementsX
A$ = "LDB": B$ = "[2,S]": C$ = "Get the NumElement": GoSub AssemOut
A$ = "LDA": B$ = "1,S": C$ = "A = Low byte of the 16 bit number": GoSub AssemOut
A$ = "MUL": C$ = "Multiply A * B, result in D": GoSub AssemOut ' Need 16bit muliply
A$ = "STD": B$ = ",S": C$ = "Save the result on the stack": GoSub AssemOut
A$ = "INC": B$ = "5,S": C$ = "Increment NumElement LSB pointer": GoSub AssemOut
A$ = "BNE": B$ = ">": C$ = "If LSB <>0 then skip ahead": GoSub AssemOut
A$ = "INC": B$ = "4,S": C$ = "If the LSB just became zero then Increment NumElement MSB pointer": GoSub AssemOut
Z$ = "!": GoSub AssemOut
' Add dX
GoSub GetExpressionB4Comma: x = x + 2 ' Get the value to parse that is before the comma "," & move past it
ExType = 0: GoSub ParseNumericExpression ' Parse the Numeric Expression returns with D = the value
A$ = "ADDD": B$ = ",S": C$ = "D=D+ old D": GoSub AssemOut
A$ = "STD": B$ = ",S": C$ = "Save New D on the stack": GoSub AssemOut
Next TempNumArray1
End If
' Last dimension value ends with a close bracket
DoStrArrCloseBracket0:
' Get NumElementsX
A$ = "LDB": B$ = "[2,S]": C$ = "Get the NumElement": GoSub AssemOut
A$ = "LDA": B$ = "1,S": C$ = "A = Low byte of the 16 bit number": GoSub AssemOut
A$ = "MUL": C$ = "Multiply A * B, result in D": GoSub AssemOut ' Need 16bit multiply
' Add dX
GoSub GetExpressionB4EndBracket: x = x + 2 ' Get the expression that ends with a close bracket & move past it
ExType = 0: GoSub ParseNumericExpression ' Parse the Numeric Expression returns with D = the value
A$ = "ADDD": B$ = ",S": C$ = "D=D+ old D": GoSub AssemOut
A$ = "LEAS": B$ = "6,S": C$ = "Fix the stack": GoSub AssemOut
End If
' * size of each element
If StringArraySize = 255 Then
' We only use B string arrays are 256 bytes each, we can't have more than 255 (actually way less)
A$ = "TFR": B$ = "B,A": C$ = "D = B * 256": GoSub AssemOut
A$ = "CLRB": C$ = Chr$(&H22) + Chr$(&H22): GoSub AssemOut
Else
' A little slower but saves RAM
num = StringArraySize: GoSub NumAsString 'Convert number in Num to a string without spaces as Num$
A$ = "LDA": B$ = "#" + Num$ + "+1": C$ = "String Array size requested by the user +1 because first digit is the string length": GoSub AssemOut
A$ = "MUL": C$ = "D = A * B":: GoSub AssemOut
End If
num = NumDims: GoSub NumAsString 'Convert number in Num to a string without spaces as Num$
A$ = "ADDD": B$ = "#_ArrayStr_" + SV$ + "+" + Num$: C$ = "D points at the start of the destination string": GoSub AssemOut
A$ = "TFR": B$ = "D,X": C$ = "Make X the pointer to where this array is stored in RAM": GoSub AssemOut
Return 'X pointing at the memory location for the Numeric Array, D is unchanged
' Exits with a Return
HandleStringArray:
If Verbose > 3 Then Print "Going to deal with String array"
v = Array(x) * 256 + Array(x + 1): x = x + 2
SV$ = StringArrayVariables$(v)
If Verbose > 3 Then Print "String array variable is: "; SV$
NumDims = Array(x): x = x + 3 ' Consume the $F5 & open bracket
If Verbose > 3 Then Print "Number of dimensons with this array:"; NumDims
If NumDims = 1 Then ' does it only have one dimension? if so it's simpler
' Yes just a single dimension array
If Verbose > 3 Then Print "handling a one dimensional array"
If Verbose > 3 Then Print #1, "; Started handling the array here:"
GoSub GetExpressionB4EndBracket: x = x + 2 ' Get the expression that ends with a close bracket & move past it
ExType = 0: GoSub ParseNumericExpression ' Parse the Numeric Expression returns with D = the value
Else
' Handle multi dimensional arrays
' Offset = (((d1 * NumElements2 + d2) * NumElements3 + d3) * NumElements4 + d4) * size of each element (2 for 16 bit integers) (256 for strings)
If Verbose > 3 Then Print "handling a multi dimensional array"
A$ = "LDX": B$ = "#_ArrayStr_" + SV$ + "+1": C$ = "X points at the 2nd array Element size": GoSub AssemOut ' X points at the 2nd array Element size
A$ = "PSHS": B$ = "X": C$ = "Save X on the stack, so we can point to it and just in case we have arrays inside arrays...": GoSub AssemOut
' Get d1
GoSub GetExpressionB4Comma: x = x + 2 ' Get the value to parse that is before the comma "," & move past it
ExType = 0: GoSub ParseNumericExpression ' Parse the Numeric Expression returns with D = the value
A$ = "PSHS": B$ = "D": C$ = "Save the Multiplicand": GoSub AssemOut ' D = d1
If NumDims = 2 Then GoTo DoStrArrCloseBracket1 ' skip ahead if we only have 2 dimension in the array
'Get NumElements2
A$ = "LDB": B$ = "[2,S]": C$ = "Get the NumElement2": GoSub AssemOut
A$ = "LDA": B$ = "1,S": C$ = "A = Low byte of the 16 bit number": GoSub AssemOut ' LSB of d1
A$ = "MUL": C$ = "Multiply A * B, result in D": GoSub AssemOut ' D=d1* NumElements2
A$ = "PSHS": B$ = "D": C$ = "Save the result on the stack": GoSub AssemOut ' Save it on the stack
A$ = "INC": B$ = "5,S": C$ = "Increment NumElement LSB pointer": GoSub AssemOut
A$ = "BNE": B$ = ">": C$ = "If LSB <>0 then skip ahead": GoSub AssemOut
A$ = "INC": B$ = "4,S": C$ = "If the LSB just became zero then Increment NumElement MSB pointer": GoSub AssemOut
Z$ = "!": GoSub AssemOut ' Num Element Pointer is now pointing at NumElements3
'Get d2
GoSub GetExpressionB4Comma: x = x + 2 ' Get the value to parse that is before the comma "," & move past it
ExType = 0: GoSub ParseNumericExpression ' Parse the Numeric Expression returns with D = the value
' Add d2
A$ = "ADDD": B$ = ",S": C$ = "D=D+ old D": GoSub AssemOut
A$ = "STD": B$ = ",S": C$ = "Save New D on the stack": GoSub AssemOut
If Verbose > 2 Then Print "number of dimensions:"; NumDims
If NumDims > 3 Then
For TempNumArray1 = 3 To NumDims - 1 ' Number of dimensions in the array - 1 since last wont have a comma seperating it
' Get NumElementsX
A$ = "LDB": B$ = "[2,S]": C$ = "Get the NumElement": GoSub AssemOut
A$ = "LDA": B$ = "1,S": C$ = "A = Low byte of the 16 bit number": GoSub AssemOut
A$ = "MUL": C$ = "Multiply A * B, result in D": GoSub AssemOut ' Need 16bit multiply
A$ = "STD": B$ = ",S": C$ = "Save the result on the stack": GoSub AssemOut
A$ = "INC": B$ = "5,S": C$ = "Increment NumElement LSB pointer": GoSub AssemOut
A$ = "BNE": B$ = ">": C$ = "If LSB <>0 then skip ahead": GoSub AssemOut
A$ = "INC": B$ = "4,S": C$ = "If the LSB just became zero then Increment NumElement MSB pointer": GoSub AssemOut
Z$ = "!": GoSub AssemOut
' Add dX
GoSub GetExpressionB4Comma: x = x + 2 ' Get the value to parse that is before the comma "," & move past it
ExType = 0: GoSub ParseNumericExpression ' Parse the Numeric Expression returns with D = the value
A$ = "ADDD": B$ = ",S": C$ = "D=D+ old D": GoSub AssemOut
A$ = "STD": B$ = ",S": C$ = "Save New D on the stack": GoSub AssemOut
Next TempNumArray1
End If
DoStrArrCloseBracket1:
' Last dimension value ends with a close bracket
' Get NumElementsX
A$ = "LDB": B$ = "[2,S]": C$ = "Get the NumElement": GoSub AssemOut
A$ = "LDA": B$ = "1,S": C$ = "A = Low byte of the 16 bit number": GoSub AssemOut
A$ = "MUL": C$ = "Multiply A * B, result in D": GoSub AssemOut ' Need 16bit multiply
' Add dX
GoSub GetExpressionB4EndBracket: x = x + 2 ' Get the expression that ends with a close bracket & move past it
ExType = 0: GoSub ParseNumericExpression ' Parse the Numeric Expression returns with D = the value
A$ = "ADDD": B$ = ",S": C$ = "D=D+ old D": GoSub AssemOut
A$ = "LEAS": B$ = "6,S": C$ = "Fix the stack": GoSub AssemOut
End If
' * size of each element
If StringArraySize = 255 Then
' We only use B string arrays are 256 bytes each, we can't have more than 255 (actually way less)
A$ = "TFR": B$ = "B,A": C$ = "D = B * 256": GoSub AssemOut
A$ = "CLRB": C$ = Chr$(&H22) + Chr$(&H22): GoSub AssemOut
Else
' A little slower but saves RAM
num = StringArraySize: GoSub NumAsString 'Convert number in Num to a string without spaces as Num$
A$ = "LDA": B$ = "#" + Num$ + "+1": C$ = "String Array size requested by the user +1 because first digit is the string length": GoSub AssemOut
A$ = "MUL": C$ = "D = A * B":: GoSub AssemOut
End If
num = NumDims: GoSub NumAsString 'Convert number in Num to a string without spaces as Num$
A$ = "ADDD": B$ = "#_ArrayStr_" + SV$ + "+" + Num$: C$ = "D = D + Start of this array memory": GoSub AssemOut
A$ = "PSHS": B$ = "D": C$ = "Save it on the stack": GoSub AssemOut
v = Array(x): x = x + 1
If v <> &HFC Then Print "Syntax error, looking for = sign while getting String Array in";: GoTo FoundError
v = Array(x): x = x + 1
If v <> &H3D Then Print "Syntax error, looking for = sign while getting String Array in";: GoTo FoundError
GoSub GetExpressionB4EOL ' Get the expression before an End of Line
GoSub ParseStringExpression ' Parse the String Expression, value will end up in _StrVar_PF00
' Copy _StrVar_PF00 to String Array variable
A$ = "PULS": B$ = "X": C$ = "X points at the start of the destination string": GoSub AssemOut
A$ = "LDU": B$ = "#_StrVar_PF00": C$ = "U points at the start of the source string": GoSub AssemOut
A$ = "LDB": B$ = ",U+": C$ = "B = length of the source string, move U to the first location where source data is stored": GoSub AssemOut
A$ = "STB": B$ = ",X+": C$ = "Set the size of the destination string, X now points at the beginning of the destination data": GoSub AssemOut
A$ = "BEQ": B$ = "Done@": C$ = "If the length of the string is zero then don't print it (Skip ahead)": GoSub AssemOut
Z$ = "!"
A$ = "LDA": B$ = ",U+": C$ = "Get a source byte": GoSub AssemOut
A$ = "STA": B$ = ",X+": C$ = "Write the destination byte": GoSub AssemOut
A$ = "DECB": C$ = "Decrement the counter": GoSub AssemOut
A$ = "BNE": B$ = "<": C$ = "Loop until all data is copied to the destination string": GoSub AssemOut
Z$ = "Done@": GoSub AssemOut
Print #1, "" ' Leave a space between sections so Done@ will work for each section
Return
' Exits with a return
HandleNumericVariable:
v = Array(x) * 256 + Array(x + 1): x = x + 2
NV$ = "_Var_" + NumericVariable$(v)
If Verbose > 3 Then Print "Numeric variable is: "; NV$
v = Array(x): x = x + 1
If v <> &HFC Then Print "Syntax error12, looking for = sign in";: GoTo FoundError
v = Array(x): x = x + 1
If v <> &H3D Then Print "Syntax error13, looking for = sign in";: GoTo FoundError
GoSub GetExpressionB4EOL ' Get the expression before an End of Line in Expression$
' Check Expression$ for a variable or numeric commands, if there aren't any, then ExType=0 and NewExpression$ will be the expression without any tokenized characters
GoSub CheckForVariable
If ExType = 0 Then
GoSub EvaluateNewExpression
num = D: GoSub NumAsString 'Convert number in Num to a string without spaces as Num$
A$ = "LDD": B$ = "#" + Num$: C$ = "Since we don't have any variables or numeric commands, this is the calculated value": GoSub AssemOut
Else
ExType = 0: GoSub ParseNumericExpression ' Parse the Numeric Expression
End If
A$ = "STD": B$ = NV$: C$ = "Save Numeric variable": GoSub AssemOut
Return
CheckForVariable:
' Check Expression$ for a variable or numeric command, if there aren't any, then calculate the expression and use that for a LDD
ExType = 0
NewExpression$ = ""
For ii = 1 To Len(Expression$)
ChecForVariable2:
v = Asc(Mid$(Expression$, ii, 1))
If v = &HF5 Or v = &HFC Then ii = ii + 1: GoTo ChecForVariable2
If v > &HEF Then ExType = 2: Return
NewExpression$ = NewExpression$ + Chr$(v)
Next ii
Return
'Exits with a Return
HandleStringVariable:
v = Array(x) * 256 + Array(x + 1): x = x + 2
StringVar$ = "_StrVar_" + StringVariable$(v)
If Verbose > 3 Then Print "String variable is: "; StringVar$
v = Array(x): x = x + 1
If v <> &HFC Then Print "Syntax error14, looking for = sign in";: GoTo FoundError
v = Array(x): x = x + 1
If v <> &H3D Then Print "Syntax error15, looking for = sign in";: GoTo FoundError
GoSub GetExpressionB4EOL ' Get the expression before an End of Line in Expression$
GoSub ParseStringExpression ' Parse the String Expression, value will end up in _StrVar_PF00
' Copy _StrVar_PF00 to string variable
A$ = "LDU": B$ = "#_StrVar_PF00": C$ = "U points at the start of the source string": GoSub AssemOut
A$ = "LDB": B$ = ",U+": C$ = "B = length of the source string, move U to the first location where source data is stored": GoSub AssemOut
A$ = "LDX": B$ = "#" + StringVar$: C$ = "X points at the length of the destination string": GoSub AssemOut
A$ = "STB": B$ = ",X+": C$ = "Set the size of the destination string, X now points at the beginning of the destination data": GoSub AssemOut
A$ = "BEQ": B$ = "Done@": C$ = "If the length of the string is zero then don't print it (Skip ahead)": GoSub AssemOut
Z$ = "!"
A$ = "LDA": B$ = ",U+": C$ = "Get a source byte": GoSub AssemOut
A$ = "STA": B$ = ",X+": C$ = "Write the destination byte": GoSub AssemOut
A$ = "DECB": C$ = "Decrement the counter": GoSub AssemOut
A$ = "BNE": B$ = "<": C$ = "Loop until all data is copied to the destination string": GoSub AssemOut
Z$ = "Done@": GoSub AssemOut
Print #1, "" ' Leave a space between sections so Done@ will work for each section
Return
ConsumeCommentsAndEOL:
If v = &H0D Or v = &H3A Then Return
Do Until v = &HF5 And Array(x) = &H0D 'consume any comments and the EOL
v = Array(x): x = x + 1
Loop
v = Array(x): x = x + 1
Return
SkipUntilEOLColon:
If v = &H0D Or v = &H3A Then Return
Do Until v = &HF5 And (Array(x) = &H0D Or Array(x) = &H3A) ' skip until we find an EOL or a Colon
v = Array(x): x = x + 1
Loop
v = Array(x): x = x + 1
Return
DoFOR:
FORCount = FORCount + 1
FORStackPointer = FORStackPointer + 1
FORSTack(FORStackPointer) = FORCount
v = Array(x): x = x + 1
If v <> &HF2 Then Print "Error getting variable needed in the FOR command on";: GoTo FoundError
'ForJump(Array(x) * 256 + Array(x + 1)) = FORCount ' Set the numeric variable name/number to this ForJump #
CompVar = Array(x) * 256 + Array(x + 1) ' Comparison Variable
' Change the bytes of the "TO" command to a $F50D so we can use the HandleNumericVariable routine to setup the FOR X=Y part
Start = x ' Point to the variable before the = sign
Do Until (v = &HFF And Array(x) * 256 + Array(x + 1) = TO_CMD) Or (v = &HF5 And Array(x) = &H0D)
v = Array(x): x = x + 1
Loop
If v = &HF5 Then v = Array(x): x = x + 1
If v = &H0D Then Print "Error assigning a value to variable in the FOR command on";: GoTo FoundError
' Found the TO command
PointAtTO = x - 1 ' Remember where the TO command is
Array(PointAtTO) = &HF5
Array(PointAtTO + 1) = &H0D ' temporarily change the space before the TO command to a $F50D
x = Start ' Point at the variable before the =
GoSub HandleNumericVariable ' Handle code such as X=Y*3 and returns with value of Y*3 in _Var_X, NV$ has the variable name