122 lines
2.9 KiB
C
122 lines
2.9 KiB
C
/* asoft_detoken: detokenize an applesoft BASIC program */
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/* by Vince Weaver (vince@deater.net) */
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#include <stdio.h>
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#include <string.h> /* strlen() */
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#include <unistd.h> /* getopt() */
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#include "version.h"
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/* Starting at 0x80 */
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char applesoft_tokens[][8]={
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/* 80 */ "END","FOR","NEXT","DATA","INPUT","DEL","DIM","READ",
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/* 88 */ "GR","TEXT","PR #","IN #","CALL","PLOT","HLIN","VLIN",
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/* 90 */ "HGR2","HGR","HCOLOR=","HPLOT","DRAW","XDRAW","HTAB","HOME",
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/* 98 */ "ROT=","SCALE=","SHLOAD","TRACE","NOTRACE","NORMAL","INVERSE","FLASH",
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/* A0 */ "COLOR=","POP","VTAB ","HIMEM:","LOMEM:","ONERR","RESUME","RECALL",
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/* A8 */ "STORE","SPEED=","LET","GOTO","RUN","IF","RESTORE","&",
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/* B0 */ "GOSUB","RETURN","REM","STOP","ON","WAIT","LOAD","SAVE",
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/* B8 */ "DEF FN","POKE","PRINT","CONT","LIST","CLEAR","GET","NEW",
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/* C0 */ "TAB(","TO","FN","SPC(","THEN","AT","NOT","STEP",
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/* C8 */ "+","-","*","/","^","AND","OR",">",
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/* D0 */ "=","<","SGN","INT","ABS","USR","FRE","SCRN (",
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/* D8 */ "PDL","POS","SQR","RND","LOG","EXP","COS","SIN",
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/* E0 */ "TAN","ATN","PEEK","LEN","STR$","VAL","ASC","CHR$",
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/* E8 */ "LEFT$","RIGHT$","MID$","","","","","",
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/* F0 */ "","","","","","","","",
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/* F8 */ "","","","","","(","(","("
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};
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int main(int argc, char **argv) {
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int ch1,i;
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int size1,size2;
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int line1,line2;
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int link1,link2,link;
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int debug=0,print_link=0;
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int offset=0x801;
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int c;
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FILE *fff;
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/* Check command line arguments */
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while ((c = getopt (argc, argv,"dl"))!=-1) {
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switch (c) {
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case 'd':
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debug=1;
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break;
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case 'l':
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print_link=1;
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break;
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}
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}
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/* No file specified, used stdin */
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if (optind==argc) {
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fff=stdin;
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}
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else {
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fff=fopen(argv[optind],"r");
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if (fff==NULL) {
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fprintf(stderr,"Error, could not open %s\n",argv[optind]);
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return -1;
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}
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}
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/* read size, first two bytes */
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size1=fgetc(fff);
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size2=fgetc(fff);
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if (debug) fprintf(stderr,"File size: %x %x\n",size1,size2);
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while(!feof(fff)) {
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/* link points to the next line */
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/* assumes asoft program starts at address $801 */
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link1=fgetc(fff);
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link2=fgetc(fff);
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link=(link2<<8)|link1;
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offset+=2;
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if (print_link) printf("*%04X",link);
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/* link==0 indicates EOF */
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if (link==0) goto the_end;
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/* line number is little endian 16-bit value */
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line1=fgetc(fff);
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line2=fgetc(fff);
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if (feof(fff)) goto the_end;
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printf("%4d ",((line2)<<8)+line1);
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offset+=2;
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/* repeat until EOL character (0) */
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while( (ch1=fgetc(fff))!=0 ) {
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offset++;
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/* if > 0x80 it's a token */
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if (ch1>=0x80) {
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/* Leading space */
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fputc(' ',stdout);
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for(i=0;i<strlen(applesoft_tokens[ch1-0x80]);i++) {
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fputc(applesoft_tokens[ch1-0x80][i],stdout);
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}
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/* Trailing space, but not if REM */
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if ((ch1-0x80)!=0x32) fputc(' ',stdout);
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}
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/* otherwise it is an ascii char */
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else {
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fputc(ch1,stdout);
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}
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}
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offset++;
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printf("\n");
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if (link!=offset) {
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fprintf(stderr,"WARNING! link!=offset %x %x\n",link,offset);
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}
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}
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the_end:;
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return 0;
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}
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