mirror of
https://github.com/deater/dos33fsprogs.git
synced 2024-11-09 07:09:55 +00:00
51 lines
798 B
C
51 lines
798 B
C
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
#include <string.h>
|
|
|
|
#include <math.h>
|
|
|
|
#include "gr-sim.h"
|
|
#include "tfv_utils.h"
|
|
#include "tfv_zp.h"
|
|
#include "6502_emulate.h"
|
|
|
|
int main(int argc, char **argv) {
|
|
|
|
int yy;
|
|
|
|
grsim_init();
|
|
gr();
|
|
|
|
yy=0;
|
|
printf("****yy=%d\n",yy);
|
|
|
|
y=yy; // ldy #0
|
|
x=3; // ldx #3
|
|
L1:
|
|
ram[0x3c]=x; // stx $3c
|
|
a=x; // txa
|
|
asl(); // asl
|
|
bit_mem(0x3c); // bit $3c
|
|
if (z==1) goto L3; // beq L3
|
|
ora_mem(0x3c); // ora $3c
|
|
eor(0xff); // eor #$ff
|
|
and(0x7e); // and #$7e
|
|
L2:
|
|
if (c==1) goto L3; // bcs L3
|
|
lsr(); // lsr
|
|
if (z==0) goto L2; // bne L2
|
|
|
|
a=y; // tya
|
|
printf("%x=%x\n",x,a); // sta nibtbl, x
|
|
y++; // iny
|
|
L3:
|
|
x++; // inx
|
|
if (!(x&0x80)) goto L1; // bpl L1
|
|
|
|
|
|
|
|
return 0;
|
|
}
|
|
|