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3b2: Fix STRCPY instruction

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STRCPY must increment both source and destination pointers (R0 and R1).
This commit is contained in:
Seth Morabito 2019-08-11 22:47:00 -07:00
parent 69ec377834
commit ab27a53014
1 changed files with 5 additions and 8 deletions
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13
3B2/3b2_cpu.c
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@ -3018,14 +3018,11 @@ t_stat sim_instr(void)
break;
case STRCPY:
a = 0;
b = 0;
do {
b = read_b(R[0] + a, ACC_AF);
write_b(R[1] + a, (uint8) b);
a++;
} while (b != '\0');
while ((a = read_b(R[0], ACC_AF)) != '\0') {
write_b(R[1], (uint8) a);
R[0]++;
R[1]++;
}
break;
case TSTW:
a = cpu_read_op(src1);