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queen: intercept OOB access to PIIX4 device [Peter Ferrie]

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Peter Ferrie 2015-03-18 22:53:45 -07:00
parent 3dee27e730
commit 1477c0133e
1 changed files with 5 additions and 0 deletions
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5
src/mame/drivers/queen.c
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@ -151,6 +151,11 @@ static void intel82439tx_pci_w(device_t *busdevice, device_t *device, int functi
static UINT8 piix4_config_r(device_t *busdevice, device_t *device, int function, int reg)
{
if ((function >= 4) && (function <= 7))
{
return 0; // BIOS performs a brute-force scan for devices
}
queen_state *state = busdevice->machine().driver_data<queen_state>();
// osd_printf_debug("PIIX4: read %d, %02X\n", function, reg);
assert(function >= 0 && function < ARRAY_LENGTH(state->m_piix4_config_reg));