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cbmbasic does stuff! panics at FF9C (which does not exist!)

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This commit is contained in:
Michael Steil 2010-09-22 09:53:46 +00:00
parent cec8c325bc
commit 4b4ebc82dd
2 changed files with 17 additions and 2 deletions
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19
perfect6502.c
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@ -443,6 +443,7 @@ writeDataBus(uint8_t x)
uint8_t mRead(uint16_t a)
{
printf("PEEK($%04X) = $%02X\n", a, memory[a]);
return memory[a];
}
@ -703,14 +704,18 @@ initChip()
console.log(string);
#endif
#if 1
int i;
for (i = 0; i < 8; i++) {
setHigh(clk0);
setLow(clk0);
}
#endif
setHigh(res);
#if 0
for (i = 0; i < 18; i++)
halfStep();
#endif
cycle = 0;
// chipStatus();
}
@ -742,9 +747,19 @@ go(n)
#ifdef DEBUG
printf("%s\n", __func__);
#endif
#if 0
memcpy(memory, code, sizeof(code));
code[0xfffc] = 0x00;
code[0xfffd] = 0x00;
memory[0xfffc] = 0x00;
memory[0xfffd] = 0x00;
#else
FILE *f;
f = fopen("cbmbasic.bin", "r");
fread(memory + 0xA000, 1, 17591, f);
fclose(f);
memory[0xfffc] = 0x94;
memory[0xfffd] = 0xE3;
#endif
steps();
}