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Updated firefox to use "new" tms5220 interface

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This commit is contained in:
Couriersud 2009-09-21 21:49:01 +00:00
parent e70cc33bd5
commit 1031a08ed8
1 changed files with 14 additions and 6 deletions
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20
src/mame/drivers/firefox.c
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@ -304,20 +304,28 @@ static UINT8 riot_porta_r(const device_config *device, UINT8 olddata)
return (main_to_sound_flag << 7) | (sound_to_main_flag << 6) | 0x10 | (tms5220_readyq_r(tms) << 2);
}
static UINT8 riot_portb_r(const device_config *device, UINT8 olddata)
{
const device_config *tms = devtag_get_device(device->machine, "tms");
return tms5220_status_r(tms, 0);
}
static void riot_porta_w(const device_config *device, UINT8 newdata, UINT8 olddata)
{
const device_config *tms = devtag_get_device(device->machine, "tms");
/* handle 5220 read */
if ((olddata & 2) != 0 && (newdata & 2) == 0)
riot6532_portb_in_set(device, tms5220_status_r(tms, 0), 0xff);
tms5220_rsq_w(tms, (newdata>>1) & 1);
/* handle 5220 write */
if ((olddata & 1) != 0 && (newdata & 1) == 0)
tms5220_data_w(tms, 0, riot6532_portb_out_get(device));
tms5220_wsq_w(tms, newdata & 1);
}
static void riot_portb_w(const device_config *device, UINT8 newdata, UINT8 olddata)
{
const device_config *tms = devtag_get_device(device->machine, "tms");
tms5220_data_w(tms, 0, newdata);
}
static void riot_irq(const device_config *device, int state)
{
@ -640,9 +648,9 @@ GFXDECODE_END
static const riot6532_interface riot_intf =
{
riot_porta_r,
NULL,
riot_portb_r,
riot_porta_w,
NULL,
riot_portb_w,
riot_irq
};