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Implemented NMI mask register for XT machines.

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Fixed PC200 NMI stuff.
This commit is contained in:
TomW 2014-09-27 18:39:06 +01:00
commit 7eacf1408a
9 changed files with 54 additions and 8 deletions
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15
src/nmi.c Normal file
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@ -0,0 +1,15 @@
#include "ibm.h"
#include "nmi.h"
int nmi_mask;
void nmi_write(uint16_t port, uint8_t val, void *p)
{
nmi_mask = val & 0x80;
}
void nmi_init()
{
io_sethandler(0x00a0, 0x0001, NULL, NULL, NULL, nmi_write, NULL, NULL, NULL);
nmi_mask = 0;
}