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/*
* Copyright (c) 2012, Brian Swetland
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <string.h>
#include <ctype.h>
#include "emulator.h"
extern u16 *disassemble(u16 *pc, char *out);
void dumpheader(void) {
fprintf(stderr,
"PC SP OV A B C X Y Z I J Instruction\n"
"---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- -----------\n");
}
void dumpstate(struct dcpu *d) {
char out[128];
disassemble(d->m + d->pc, out);
fprintf(stderr,
"%04x %04x %04x %04x %04x %04x %04x %04x %04x %04x %04x %s\n",
d->pc, d->sp, d->ov,
d->r[0], d->r[1], d->r[2], d->r[3],
d->r[4], d->r[5], d->r[6], d->r[7],
out);
}
void load(struct dcpu *d, const char *fn) {
FILE *fp;
char buf[128];
u16 n = 0;
if (!(fp = fopen(fn, "r"))) {
fprintf(stderr, "cannot open: %s\n", fn);
exit(1);
}
while (!feof(fp) && fgets(buf, 128, fp)) {
if (!isalnum(buf[0]))
continue;
d->m[n++] = strtoul(buf, 0, 16);
}
fprintf(stderr,"< LOADED %d WORDS >\n", n);
fclose(fp);
}
int main(int argc, char **argv) {
struct dcpu d;
memset(&d, 0, sizeof(d));
load(&d, argc > 1 ? argv[1] : "out.hex");
dumpheader();
for (;;) {
dumpstate(&d);
dcpu_step(&d);
}
return 0;
}