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Improved PIA6821 interface. (no whatsnew)

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This commit is contained in:
Curt Coder 2010-07-16 12:01:50 +00:00
parent 6daac9bee5
commit b4e69db3c3
2 changed files with 7 additions and 7 deletions
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4
src/mame/machine/mcr.c
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@ -607,7 +607,7 @@ static WRITE_LINE_DEVICE_HANDLER( zwackery_pia_irq )
static TIMER_CALLBACK( zwackery_493_off_callback )
{
running_device *pia = machine->device("pia0");
pia6821_ca1_w(pia, 0, 0);
pia6821_ca1_w(pia, 0);
}
@ -615,7 +615,7 @@ static TIMER_CALLBACK( zwackery_493_callback )
{
running_device *pia = machine->device("pia0");
pia6821_ca1_w(pia, 0, 1);
pia6821_ca1_w(pia, 1);
timer_set(machine, machine->primary_screen->scan_period(), NULL, 0, zwackery_493_off_callback);
}

10
src/mame/machine/qix.c
View File

@ -253,7 +253,7 @@ MACHINE_START( qixmcu )
WRITE_LINE_DEVICE_HANDLER( qix_vsync_changed )
{
running_device *pia = device->machine->device("sndpia0");
pia6821_cb1_w(pia, 0, state);
pia6821_cb1_w(pia, state);
}
@ -511,8 +511,8 @@ static WRITE8_DEVICE_HANDLER( slither_76489_0_w )
sn76496_w(device->machine->device("sn1"), 0, data);
/* clock the ready line going back into CB1 */
pia6821_cb1_w(device, 0, 0);
pia6821_cb1_w(device, 0, 1);
pia6821_cb1_w(device, 0);
pia6821_cb1_w(device, 1);
}
@ -522,8 +522,8 @@ static WRITE8_DEVICE_HANDLER( slither_76489_1_w )
sn76496_w(device->machine->device("sn2"), 0, data);
/* clock the ready line going back into CB1 */
pia6821_cb1_w(device, 0, 0);
pia6821_cb1_w(device, 0, 1);
pia6821_cb1_w(device, 0);
pia6821_cb1_w(device, 1);
}