mirror of
https://github.com/deater/dos33fsprogs.git
synced 2024-10-31 10:13:35 +00:00
355 lines
7.2 KiB
C
355 lines
7.2 KiB
C
/* Creates an AppleSoft BASIC shape table */
|
|
/* See the AppleSoft manual for info on how this works */
|
|
/* Some online info (I'm looking at you, atariarchives.org) */
|
|
/* is inaccurate */
|
|
|
|
/* Format of table is: */
|
|
/* 1 byte -- num shapes */
|
|
/* 1 byte -- don't care */
|
|
/* offsets (repeats): 2 bytes (low/high) offset from start to each shape */
|
|
/* Data (repeats), 0 at end of each */
|
|
/* data packed in as XX YYY ZZZ */
|
|
/* ZZZ = first dir, YYY = next, XX = last, can only be no-draw as 2 bits */
|
|
/* note XX can't be NUP (00) */
|
|
|
|
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <stdlib.h>
|
|
|
|
#define MAX_SIZE 8192 /* not really, but anything larger would be crazy */
|
|
|
|
static int debug=0,line=1;
|
|
|
|
static unsigned char table[MAX_SIZE];
|
|
|
|
static void set_offset(int current_shape,int current_offset) {
|
|
|
|
table[2+(current_shape*2)]=current_offset&0xff;
|
|
table[2+(current_shape*2)+1]=(current_offset>>8)&0xff;
|
|
}
|
|
|
|
#define LOC_A 0
|
|
#define LOC_B 1
|
|
#define LOC_C 2
|
|
|
|
static void warn_if_zero(unsigned char byte, int line) {
|
|
|
|
/* Check to see if we're accidentally ignoring bytes */
|
|
if (byte==0) {
|
|
fprintf(stderr,
|
|
"Warning, all-0 byte will be ignored on line %d!\n",
|
|
line);
|
|
}
|
|
|
|
if ((byte&0xf8)==0) {
|
|
fprintf(stderr,
|
|
"Warning, ignoring C and B due to 0 on line %d!\n",
|
|
line);
|
|
}
|
|
}
|
|
|
|
static void print_usage(char *exe) {
|
|
|
|
printf("Usage:\t%s [-h] [-a] [-b] [-x]\n\n",exe);
|
|
printf("\t-h\tprint this help message\n");
|
|
printf("\t-a\toutput shape table in applesoft BASIC format\n");
|
|
printf("\t-b\toutput shape table in binary format for appleiibot\n");
|
|
printf("\t-x\toutput shape table in hex format for assembly language\n");
|
|
printf("\n");
|
|
exit(1);
|
|
}
|
|
|
|
static int get_token(char *token, FILE *fff) {
|
|
|
|
int ch;
|
|
int ptr=0;
|
|
|
|
/* skip leading spaces/comments */
|
|
while(1) {
|
|
ch=fgetc(fff);
|
|
if (ch<0) return -1;
|
|
|
|
/* Skip comment to end of line */
|
|
if (ch=='#') {
|
|
while(ch!='\n') ch=fgetc(fff);
|
|
}
|
|
|
|
if ((ch==' ') || (ch=='\t') || (ch=='\n')) {
|
|
if (ch=='\n') line++;
|
|
continue;
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
while(1) {
|
|
token[ptr]=ch;
|
|
ptr++;
|
|
|
|
ch=fgetc(fff);
|
|
if (ch<0) return -1;
|
|
|
|
if ((ch==' ') || (ch=='\t') || (ch=='\n')) {
|
|
if (ch=='\n') line++;
|
|
break;
|
|
}
|
|
}
|
|
token[ptr]=0;
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
#define OUTPUT_BASIC 0
|
|
#define OUTPUT_BINARY 1
|
|
#define OUTPUT_HEX 2
|
|
|
|
int main(int argc, char **argv) {
|
|
|
|
char string[BUFSIZ];
|
|
int result;
|
|
int table_size=0;
|
|
int num_shapes=0;
|
|
int current_offset=0,current_shape=0;
|
|
int i;
|
|
|
|
int command=0,sub_pointer;
|
|
|
|
int output_type=OUTPUT_BASIC;
|
|
|
|
if (argc<2) {
|
|
output_type=OUTPUT_BASIC;
|
|
}
|
|
else {
|
|
if (argv[1][0]=='-') {
|
|
|
|
switch(argv[1][1]) {
|
|
|
|
case 'h':
|
|
print_usage(argv[0]);
|
|
break;
|
|
case 'b':
|
|
output_type=OUTPUT_BINARY;
|
|
break;
|
|
case 'a':
|
|
output_type=OUTPUT_BASIC;
|
|
break;
|
|
case 'x':
|
|
output_type=OUTPUT_HEX;
|
|
break;
|
|
case 'd':
|
|
debug=1;
|
|
break;
|
|
default:
|
|
printf("Unknown options %s\n",argv[1]);
|
|
print_usage(argv[0]);
|
|
}
|
|
}
|
|
}
|
|
|
|
result=get_token(string,stdin);
|
|
if (result<0) {
|
|
fprintf(stderr,"Error getting number\n");
|
|
return -1;
|
|
}
|
|
|
|
num_shapes=atoi(string);
|
|
if (num_shapes<1) {
|
|
fprintf(stderr,"Error getting numshapes\n");
|
|
return -2;
|
|
}
|
|
if (debug) fprintf(stderr,"Number of shapes = %d\n",num_shapes);
|
|
|
|
table[0]=num_shapes;
|
|
table[1]=0;
|
|
|
|
current_shape=0;
|
|
current_offset=2+2*(num_shapes);
|
|
|
|
for(current_shape=0;current_shape<num_shapes;current_shape++) {
|
|
|
|
set_offset(current_shape,current_offset);
|
|
|
|
/* Find START */
|
|
|
|
while(1) {
|
|
result=get_token(string,stdin);
|
|
if (result<0) {
|
|
fprintf(stderr,"Unexpected EOF, no START!\n");
|
|
return -1;
|
|
}
|
|
|
|
if (!strcmp(string,"START")) {
|
|
if (debug) {
|
|
fprintf(stderr,"STARTING SHAPE %d\n",
|
|
current_shape);
|
|
}
|
|
break;
|
|
|
|
}
|
|
}
|
|
|
|
/* READ DATA */
|
|
sub_pointer=LOC_A;
|
|
|
|
while(1) {
|
|
result=get_token(string,stdin);
|
|
if (result<0) {
|
|
fprintf(stderr,"Unexpected end of file! No STOP\n");
|
|
return -2;
|
|
}
|
|
|
|
if (!strcmp(string,"STOP")) {
|
|
if (debug) fprintf(stderr,"STOP\n");
|
|
break;
|
|
}
|
|
|
|
/* yes, this is inefficient... */
|
|
|
|
if (!strcmp(string,"NUP")) {
|
|
if (debug) fprintf(stderr,"NUP\n");
|
|
command=0;
|
|
}
|
|
else if (!strcmp(string,"NRT")) {
|
|
if (debug) fprintf(stderr,"NRT\n");
|
|
command=1;
|
|
}
|
|
else if (!strcmp(string,"NDN")) {
|
|
if (debug) fprintf(stderr,"NDN\n");
|
|
command=2;
|
|
}
|
|
else if (!strcmp(string,"NLT")) {
|
|
if (debug) fprintf(stderr,"NLT\n");
|
|
command=3;
|
|
}
|
|
else if (!strcmp(string,"UP")) {
|
|
if (debug) fprintf(stderr,"UP\n");
|
|
command=4;
|
|
}
|
|
else if (!strcmp(string,"RT")) {
|
|
if (debug) fprintf(stderr,"RT\n");
|
|
command=5;
|
|
}
|
|
else if (!strcmp(string,"DN")) {
|
|
if (debug) fprintf(stderr,"DN\n");
|
|
command=6;
|
|
}
|
|
else if (!strcmp(string,"LT")) {
|
|
if (debug) fprintf(stderr,"LT\n");
|
|
command=7;
|
|
}
|
|
else if (!strcmp(string,"NOP")) {
|
|
if (debug) fprintf(stderr,"NOP\n");
|
|
command=8;
|
|
}
|
|
else {
|
|
fprintf(stderr,"Unknown command '%s'",string);
|
|
}
|
|
|
|
if (sub_pointer==LOC_A) {
|
|
table[current_offset]=(command&0x7);
|
|
sub_pointer=LOC_B;
|
|
}
|
|
else if (sub_pointer==LOC_B) {
|
|
table[current_offset]|=((command&0x7)<<3);
|
|
sub_pointer=LOC_C;
|
|
}
|
|
else {
|
|
/* Try to fit in LOC_C. */
|
|
|
|
/* This can only hold no-draw moves */
|
|
/* Also a LOC_C of 0 is ignored */
|
|
if ((command&0x4) || (command==0)) {
|
|
|
|
/* Write to LOC_A instead */
|
|
|
|
warn_if_zero(table[current_offset],line);
|
|
|
|
current_offset++;
|
|
table[current_offset]=(command&0x7);
|
|
sub_pointer=LOC_B;
|
|
}
|
|
else {
|
|
/* write to LOC_C */
|
|
|
|
if (current_offset==8) {
|
|
}
|
|
else {
|
|
table[current_offset]|=((command&0x3)<<6);
|
|
}
|
|
|
|
warn_if_zero(table[current_offset],line);
|
|
|
|
current_offset++;
|
|
sub_pointer=LOC_A;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (sub_pointer!=LOC_A) current_offset++;
|
|
|
|
table[current_offset]=0; current_offset++;
|
|
|
|
}
|
|
|
|
table_size=current_offset;
|
|
|
|
if (output_type==OUTPUT_BINARY) {
|
|
unsigned char header[4];
|
|
int offset=0x6000;
|
|
|
|
header[0]=offset&0xff;
|
|
header[1]=(offset>>8)&0xff;
|
|
header[2]=table_size&0xff;
|
|
header[3]=(table_size>>8)&0xff;
|
|
|
|
fprintf(stderr,"Be sure to POKE 232,%d : POKE 233,%d\n"
|
|
"\tto let applesoft know the location of the table\n",
|
|
offset&0xff,(offset>>8)&0xff);
|
|
|
|
fwrite(header,sizeof(unsigned char),4,stdout);
|
|
|
|
fwrite(table,sizeof(unsigned char),table_size,stdout);
|
|
}
|
|
else if (output_type==OUTPUT_BASIC) {
|
|
|
|
/* put near highmem */
|
|
int address=0x1ff0-table_size;
|
|
|
|
printf("10 HIMEM:%d\n",address);
|
|
printf("20 POKE 232,%d:POKE 233,%d\n",(address&0xff),(address>>8)&0xff);
|
|
printf("30 FOR L=%d TO %d: READ B:POKE L,B:NEXT L\n",
|
|
address,(address+table_size)-1);
|
|
printf("35 HGR:ROT=0:SCALE=2\n");
|
|
printf("40 FOR I=1 TO %d: XDRAW I AT I*10,100:NEXT I\n",
|
|
num_shapes);
|
|
printf("90 END\n");
|
|
|
|
for(i=0;i<current_offset;i++) {
|
|
if(i%10==0) printf("%d DATA ",100+i/10);
|
|
printf("%d",table[i]);
|
|
if ((i%10==9)||(i==current_offset-1)) printf("\n");
|
|
else printf(",");
|
|
}
|
|
|
|
}
|
|
else if (output_type==OUTPUT_HEX) {
|
|
|
|
for(i=0;i<current_offset;i++) {
|
|
if(i%8==0) printf(".byte\t");
|
|
printf("$%02x",table[i]);
|
|
if ((i%8==7)||(i==current_offset-1)) printf("\n");
|
|
else printf(",");
|
|
}
|
|
|
|
}
|
|
else {
|
|
fprintf(stderr,"Error, unknown output type %d\n",
|
|
output_type);
|
|
}
|
|
|
|
return 0;
|
|
}
|