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#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <time.h>
#include "bas.h"
#undef DUMP_TABLES
#ifdef DUMP_TABLES
#include "tokens.c"
#include "aplus_tokens.c"
#include "bxl_tokens.c"
#endif
/* there are a few more BXL commands past 0x55, but they have no
A+ equivalents. */
#define LAST_BXL_CMD 0x55
#define LAST_BXL_OP 0x65
/* cmd_table[basic_token] or op_table[basic_token] gives the equivalent
A+ token. note that there's no "GO TO" or "COM" in A+, we translate
those as GOTO and DIM. */
unsigned char cmd_table[] = {
/* Atari BASIC: */
/* REM DATA INPUT COLOR LIST ENTER LET IF:*/
0x00, 0x01, 0x02, 0x3f, 0x03, 0x04, 0x05, 0x06, /* 0x00 - 0x07 */
/* FOR NEXT GOTO GO<sp>TO GOSUB TRAP BYE CONT: */
0x07, 0x08, 0x09, 0x09, 0x0b, 0x0c, 0x0d, 0x0e, /* 0x08 - 0x0f */
/* COM CLOSE CLR DEG DIM END NEW OPEN: */
0x12, 0x0f, 0x10, 0x11, 0x12, 0x19, 0x1a, 0x1b, /* 0x10 - 0x17 */
/* LOAD SAVE STATUS NOTE POINT XIO ON POKE: */
0x1c, 0x1d, 0x1e, 0x1f, 0x20, 0x21, 0x22, 0x23, /* 0x18 - 0x1f */
/* PRINT RAD READ RESTORE RETURN RUN STOP POP: */
0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, 0x2c, /* 0x20 - 0x27 */
/* ? GET PUT GRAPHICS PLOT POSITION DOS DRAWTO: */
0x2d, 0x2e, 0x2f, 0x40, 0x41, 0x42, 0x38, 0x43, /* 0x28 - 0x2f */
/* SETCOLOR LOCATE SOUND LPRINT CSAVE CLOAD <silent-let> ERROR-: */
0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x52, 0x53, /* 0x30 - 0x37 */
/* BASIC XL: */
/* WHILE ENDWHILE TRACEOFF TRACE ELSE ENDIF DPOKE LOMEM: */
0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x24, 0x30, /* 0x38-0x3f */
/* DEL RPUT RGET BPUT BGET TAB CP ERASE: */
0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x39, /* 0x40-0x47 */
/* PROTECT UNPROTECT DIR RENAME MOVE MISSILE PMCLR PMCOLOR: */
0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x4a, 0x4b, 0x4c, /* 0x48-0x4f */
/* PMGRAPHICS PMMOVE PMWIDTH SET LVAR RENUM: */
0x4d, 0x4e, 0x4f, 0x50, 0x51, 0x0a, /* 0x50-0x55 */
};
/* 0xff means "untranslatable". these are:
BUMP( FIND( HEX$ RANDOM(
...though BUMP( and FIND( do have A+ equivalents (they just need
a left paren inserted after) */
unsigned char op_table[] = {
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0,
0x0e, /* convert BXL hex const to decimal */
0, 0, 0, 0,
/* these are the same, 0x12-0x1b */
0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b,
/* 0x1c-0x2a off by one due to USING inserted at 0x1c */
0x1d, 0x1e, 0x1f, 0x20, 0x21, 0x22, 0x23, 0x24,
0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b,
/* 0x2b-0x43 off by 3 due to ! and & */
0x2e, 0x2f, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35,
0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d,
0x3e, 0x3f, 0x40, 0x41, 0x42, 0x43, 0x44, 0x45,
0x46,
/* 0x44-0x50 */
0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, 0x50, 0x51,
0x52, 0x53, 0x54, 0x55, 0x56,
/* 0x51-0x54 (last BASIC) */
0x58, 0x59, 0x5a, 0x5b,
/* BXL stuff, 0x55-0x5f */
0x1c, 0xff /* % */, 0x2c, 0x2d,
0xff, /* string array semicolon */
0xff, /* BUMP( (TODO: A+ token 0x47 plus a paren) */
0xff, /* FIND( (TODO: A+ token 0x48 plus a paren) */
0xff, /* HEX$ */
0xff, /* RANDOM( */
0x49, /* DPEEK */
0x57, /* SYS */
0x5c, /* VSTICK */
0x5d, /* HSTICK */
0x5e, /* PMADR */
0x5f, /* ERR */
0x60, /* TAB */
0x61, /* PEN */
};
#ifdef DUMP_TABLES
void dump_tables(void) {
int i;
for(i = 0; i <= LAST_BXL_CMD; i++) {
const char *b, *ap = aplus_cmds[cmd_table[i]];
if(i <= last_command)
b = commands[i];
else
b = bxl_cmds[i - 0x38];
printf("%02x: %s %s%s\n", i, b, ap, (strcmp(b, ap) == 0) ? " SAME" : "");
}
printf("\n\n");
for(i = 0x12; i <= LAST_BXL_OP; i++) {
int j = op_table[i];;
const char *b, *ap;
if(j == 0xff)
ap = "(not in A+)";
else
ap = aplus_ops[j];
if(i <= last_operator)
b = operators[i];
else
b = bxl_ops[i - 0x55];
printf("%02x: %s %s%s\n", i, b, ap, (strcmp(b, ap) == 0) ? " SAME" : "");
}
}
#endif
void print_help(void) {
printf("%s [input-file] [output-file]\n", self);
}
void parse_args(int argc, char **argv) {
int opt;
while( (opt = getopt(argc, argv, "v")) != -1) {
switch(opt) {
case 'v': verbose = 1; break;
case 'h': print_help(); exit(0);
default:
print_help();
exit(1);
}
}
if(optind == argc)
die("No input file given.");
else
open_input(argv[optind]);
if(++optind == argc)
die("No output file given.");
else
output_filename = argv[optind];
if(argv[++optind])
die("Only one input and one output file allowed.");
}
CALLBACK(conv_cmd) {
if(tok > LAST_BXL_CMD) {
fprintf(stderr, "%s: Invalid cmd token %02x at line %d, pos %04x, skipping.\n",
self, tok, lineno, pos);
return;
}
program[pos] = cmd_table[tok];
if(verbose)
fprintf(stderr, "cmd tok %02x converted to %02x at line %d, pos %04x\n", tok, program[pos], lineno, pos);
}
CALLBACK(conv_op) {
unsigned char newtok;
if(tok < 0x12 && tok != OP_HEXCONST) return;
if(tok > LAST_BXL_OP) {
fprintf(stderr, "%s: Invalid op token %02x at line %d, pos %04x, skipping.\n",
self, tok, lineno, pos);
return;
}
newtok = op_table[tok];
if(newtok == 0xff) {
fprintf(stderr, "%s: BXL op token %02x at line %d, pos %04x, has no A+ equivalent, skipping.\n",
self, tok, lineno, pos);
return;
}
program[pos] = newtok;
if(verbose)
fprintf(stderr, "op tok %02x converted to %02x at line %d, pos %04x\n", tok, program[pos], lineno, pos);
}
int main(int argc, char **argv) {
#ifdef DUMP_TABLES
dump_tables(); exit(0);
#endif
set_self(*argv);
parse_general_args(argc, argv, print_help);
parse_args(argc, argv);
readfile();
parse_header();
on_cmd_token = conv_cmd;
on_exp_token = conv_op;
allow_hex_const = 1;
walk_all_code();
open_output(output_filename);
writefile();
return 0;
}
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