mirror of
https://github.com/deater/dos33fsprogs.git
synced 2024-11-01 01:06:33 +00:00
391 lines
8.0 KiB
C
391 lines
8.0 KiB
C
/* asoft_compact */
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/* make applesoft code as compact as possible */
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/* + Renumber lines to be as short as possible */
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/* + Remove extraneous "LET" commands */
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/* + Transform "THEN GOTO" to "THEN" */
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/* + Make variables as short as possible */
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/* + Remove REM statements */
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/* + Combine lines right up to 255 char limit */
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/* Example */
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/* demo.bas = 22,219 bytes */
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/* tokenized = 17,407 bytes */
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/* compacted = */
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#include <stdio.h>
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#include <string.h> /* strlen() */
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#include <stdlib.h>
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#include "version.h"
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#define LOW(_x) ((_x)&0xff)
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#define HIGH(_x) (((_x)>>8)&0xff)
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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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#define TOKEN_END 0
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#define TOKEN_FOR 1
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#define TOKEN_NEXT 2
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#define TOKEN_DATA 3
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#define TOKEN_INPUT 4
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#define TOKEN_DEL 5
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#define TOKEN_DIM 6
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#define TOKEN_READ 7
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#define TOKEN_GR 8
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#define TOKEN_TEXT 9
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#define TOKEN_PR 10
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#define TOKEN_IN 11
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#define TOKEN_CALL 12
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#define TOKEN_PLOT 13
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#define TOKEN_HLIN 14
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#define TOKEN_VLIN 15
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#define TOKEN_HGR2 16
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#define TOKEN_HGR 17
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#define TOKEN_HCOLOR 18
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#define TOKEN_HPLOT 19
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#define TOKEN_DRAW 20
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#define TOKEN_XDRAW 21
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#define TOKEN_HTAB 22
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#define TOKEN_HOME 23
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#define TOKEN_ROT 24
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#define TOKEN_SCALE 25
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#define TOKEN_SHLOAD 26
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#define TOKEN_TRACE 27
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#define TOKEN_NOTRACE 28
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#define TOKEN_NORMAL 29
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#define TOKEN_INVERSE 30
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#define TOKEN_FLASH 31
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#define TOKEN_COLOR 32
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#define TOKEN_POP 33
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#define TOKEN_VTAB 34
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#define TOKEN_HIMEM 35
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#define TOKEN_LOMEM 36
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#define TOKEN_ONERR 37
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#define TOKEN_RESUME 38
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#define TOKEN_RECALL 39
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#define TOKEN_STORE 40
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#define TOKEN_SPEED 41
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#define TOKEN_LET 42
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#define TOKEN_GOTO 43
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#define TOKEN_RUN 44
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#define TOKEN_IF 45
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#define TOKEN_RESTORE 46
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#define TOKEN_AMP 47
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#define TOKEN_GOSUB 48
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#define TOKEN_RETURN 49
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#define TOKEN_REM 50
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#define TOKEN_STOP 51
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#define TOKEN_ON 52
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#define TOKEN_WAIT 53
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#define TOKEN_LOAD 54
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#define TOKEN_SAVE 55
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#define TOKEN_DEFFN 56
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#define TOKEN_POKE 57
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#define TOKEN_PRINT 58
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#define TOKEN_CONT 59
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#define TOKEN_LIST 60
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#define TOKEN_CLEAR 61
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#define TOKEN_GET 62
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#define TOKEN_NEW 63
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#define TOKEN_TAB 64
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#define TOKEN_TO 65
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#define TOKEN_FN 66
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#define TOKEN_SPC 67
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#define TOKEN_THEN 68
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#define TOKEN_AT 69
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#define TOKEN_NO 70
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#define TOKEN_STEP 71
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#if 0
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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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#endif
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static void color_red(void) {
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fprintf(stderr,"%c[1;31;40m",27);
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}
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static void color_green(void) {
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fprintf(stderr,"%c[1;32;40m",27);
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}
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static void color_cyan(void) {
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fprintf(stderr,"%c[1;36;40m",27);
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}
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static void color_yellow(void) {
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fprintf(stderr,"%c[1;33;40m",27);
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}
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static void color_normal(void) {
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fprintf(stderr,"%c[0m",27);
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}
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static int linenums[65536]; /* lazy */
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static int output[65536];
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static void print_int(int value, int *offset) {
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unsigned char buffer[16];
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int pointer=15;
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int r,q;
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q=value;
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while(1) {
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r=q%10;
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q/=10;
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buffer[pointer]=r+'0';
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if (q==0) break;
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pointer--;
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}
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while(pointer<16) {
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output[*offset]=buffer[pointer];
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pointer++;
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(*offset)++;
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}
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}
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int main(int argc, char **argv) {
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int ch1;
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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=1;
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int token,last_token=0;
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int line_no=0;
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int i;
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FILE *fff;
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int offset,link_offset;
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if (argc<2) {
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fprintf(stderr,"Usage: %s FILENAME -1 -2 -3 -4\n",argv[0]);
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exit(1);
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}
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fff=fopen(argv[1],"r");
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if (fff==NULL) {
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fprintf(stderr,"Error opening %s\n",argv[1]);
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exit(1);
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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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link1=fgetc(fff);
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link2=fgetc(fff);
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link=(link1<<8)|link2;
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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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color_red();
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fprintf(stderr,"%4d ",((line2)<<8)+line1);
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color_normal();
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/* repeat until EOL character (0) */
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while(1) {
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ch1=fgetc(fff);
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after_read:
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if (ch1==0) break;
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/* if > 0x80 it's a token */
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if (ch1>=0x80) {
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color_green();
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fprintf(stderr,"%s",applesoft_tokens[ch1-0x80]);
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color_normal();
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last_token=ch1&0x7f;
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}
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/* otherwise it is an ascii char */
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else {
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if (ch1<0x20) {
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color_cyan();
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fprintf(stderr,"%d",ch1);
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color_normal();
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}
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if ((ch1>='0') && (ch1<='9')) {
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if ((last_token==TOKEN_GOTO) ||
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(last_token==TOKEN_GOSUB) ||
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(last_token==TOKEN_THEN)) {
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line_no=ch1-'0';
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while(1) {
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ch1=fgetc(fff);
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if ((ch1<'0') || (ch1>'9')) break;
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line_no*=10;
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line_no+=(ch1-'0');
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}
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color_yellow();
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fprintf(stderr,"%d",line_no);
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color_normal();
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linenums[line_no]++;
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goto after_read;
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}
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}
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fputc(ch1,stderr);
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}
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}
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fprintf(stderr,"\n");
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}
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the_end:;
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fprintf(stderr,"Used Line Numbers:\n");
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for(i=0;i<65536;i++) {
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if(linenums[i]) fprintf(stderr,"\t%d\t%d\n",i,linenums[i]);
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}
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rewind(fff);
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/*********************/
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/* Create new output */
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/*********************/
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/* skip size bytes */
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offset=2;
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size1=fgetc(fff);
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size2=fgetc(fff);
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while(!feof(fff)) {
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link_offset=offset;
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link1=fgetc(fff);
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link2=fgetc(fff);
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link=(link1<<8)|link2;
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output[offset]=link1;
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output[offset+1]=link2;
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/* link==0 indicates end */
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if (link==0) break;
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offset+=2;
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/* line number is little endian 16-bit value */
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// line_offset=offset;
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line1=fgetc(fff);
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line2=fgetc(fff);
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output[offset]=line1;
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output[offset+1]=line2;
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offset+=2;
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if (feof(fff)) break;
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/* repeat until EOL character (0) */
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while(1) {
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ch1=fgetc(fff);
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after_read2:
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if (ch1==0) break;
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/* if > 0x80 it's a token */
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if (ch1>=0x80) {
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token=ch1&0x7f;
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if (token==TOKEN_LET) {
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/* Skip superfluous LET */
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}
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else if ((token==TOKEN_GOTO) && (last_token==TOKEN_THEN)) {
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/* Skip superfluous GOTO if THEN GOTO */
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}
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else {
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output[offset]=ch1;
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offset++;
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}
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last_token=token;
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}
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/* otherwise it is an ascii char */
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else {
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if ((ch1>='0') && (ch1<='9')) {
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if ((last_token==TOKEN_GOTO) ||
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(last_token==TOKEN_GOSUB) ||
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(last_token==TOKEN_THEN)) {
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line_no=ch1-'0';
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while(1) {
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ch1=fgetc(fff);
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if ((ch1<'0') || (ch1>'9')) break;
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line_no*=10;
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line_no+=(ch1-'0');
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}
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print_int(line_no,&offset);
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goto after_read2;
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}
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}
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output[offset]=ch1;
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offset++;
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}
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}
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output[offset]=0;
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offset++;
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output[link_offset]=LOW(offset+0x7ff);
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output[link_offset+1]=HIGH(offset+0x7ff);
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}
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/* write out our program */
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/* set last link field to $00 $00 which indicates EOF */
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output[offset]='\0';
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output[offset+1]='\0';
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offset+=2;
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/* Set filesize */
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/* -1 to match observed values */
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output[0]=LOW(offset-1);
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output[1]=HIGH(offset-1);
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/* output our file */
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for(i=0;i<offset;i++) putchar(output[i]);
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return 0;
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}
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