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Implement port 0x70 NMI mask. Patch from Greatpsycho.

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This commit is contained in:
SarahW 2017-07-19 19:35:01 +01:00
commit 8b433633c0
4 changed files with 11 additions and 3 deletions
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3
src/scat.c
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@ -5,6 +5,7 @@
#include "mem.h"
#include "scat.h"
#include "x86.h"
#include "nmi.h"
static uint8_t scat_regs[256];
static int scat_index;
@ -395,7 +396,7 @@ uint8_t scat_read(uint16_t port, void *priv)
switch (scat_index)
{
case SCAT_MISCELLANEOUS_STATUS:
val = (scat_regs[scat_index] & 0xbf) | ((mem_a20_key & 2) << 5);
val = (scat_regs[scat_index] & 0x3f) | (~nmi_mask & 0x80) | ((mem_a20_key & 2) << 5);
break;
case SCAT_DRAM_CONFIGURATION:
val = (scat_regs[scat_index] & 0x8f) | (cpu_waitstates == 1 ? 0 : 0x10);