bug fix for setup_idt
the setup_idt() has not configured default ISR for all interrupt.
CPU lookup IVT and set 0x0:0x0 (cs:ip) as interrupt handler entry
when received an unexpected interrupt which not setup ISR via
set_realmode_int in setup_idt().
howerver, the 0x0:0x0 point to IVT-self and executing it caused
invalid opcode exception, which the interrupt vector is 6, and the
handler bios_intfake not fixing this problem, this makes CPU run
into a infinite loop.
diff --git a/main.c b/main.c
index 699cc1a..8ac2a68 100644
--- a/main.c
+++ b/main.c
@@ -19,7 +19,7 @@
static void setup_idt(void)
{
int i;
- for (i = 0; i < 0x1f; i++)
+ for (i = 0; i < 0x100; i++)
set_realmode_int(i, bios_intfake);
for (i = 8; i < 16; i++)
set_realmode_int(i, bios_irq);
