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collapseos/tools/emul/runbin/runbin.c
2019-12-02 17:28:01 -05:00

28 lines
557 B
C

#include <stdint.h>
#include <stdio.h>
#include "../emul.h"
/* runbin loads binary from stdin directly in memory address 0 then runs it
* until it halts. The return code is the value of the register A at halt time.
*/
int main()
{
Machine *m = emul_init();
// read stdin in mem
int i = 0;
int c = getchar();
while (c != EOF) {
m->mem[i] = c & 0xff;
i++;
c = getchar();
}
if (!i) {
fprintf(stderr, "No input, aborting\n");
return 1;
}
emul_loop();
return m->cpu.R1.br.A;
}