mirror of
https://github.com/deater/dos33fsprogs.git
synced 2025-02-05 21:34:30 +00:00
c05084c289
probably broke something, but this also was a pain as was often accidentally using the vars, especially X and Y
51 lines
798 B
C
51 lines
798 B
C
#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <string.h>
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#include <math.h>
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#include "gr-sim.h"
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#include "tfv_utils.h"
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#include "tfv_zp.h"
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#include "6502_emulate.h"
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int main(int argc, char **argv) {
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int yy;
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grsim_init();
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gr();
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yy=0;
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printf("****yy=%d\n",yy);
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Y=yy; // ldy #0
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X=3; // ldx #3
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L1:
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ram[0x3c]=X; // stx $3c
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A=X; // txa
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asl(); // asl
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bit_mem(0x3c); // bit $3c
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if (Z==1) goto L3; // beq L3
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ora_mem(0x3c); // ora $3c
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eor(0xff); // eor #$ff
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and(0x7e); // and #$7e
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L2:
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if (C==1) goto L3; // bcs L3
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lsr(); // lsr
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if (Z==0) goto L2; // bne L2
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A=Y; // tya
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printf("%x=%x\n",X,A); // sta nibtbl, x
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Y++; // iny
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L3:
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X++; // inx
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if (!(X&0x80)) goto L1; // bpl L1
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return 0;
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}
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