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tms5110 now exhibits Rom Clock signal

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This commit is contained in:
Couriersud 2009-09-19 00:37:00 +00:00
parent 0f22beeead
commit 611759686d
2 changed files with 32 additions and 1 deletions
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31
src/emu/sound/tms5110.c
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@ -173,6 +173,9 @@ struct _tms5110_state
const UINT8 *table;
sound_stream *stream;
INT32 speech_rom_bitnum;
emu_timer *romclk_timer;
UINT8 romclk_state;
};
@ -1116,7 +1119,33 @@ READ8_DEVICE_HANDLER( m58817_status_r )
return (tms->talk_status << 0); /*CTL1 = still talking ? */
}
WRITE8_DEVICE_HANDLER( tms5110_ctl_w );
/******************************************************************************
tms5110_romclk_r -- read status of romclk
******************************************************************************/
static TIMER_CALLBACK( romclk_timer_cb )
{
tms5110_state *tms = get_safe_token(ptr);
tms->romclk_state = !tms->romclk_state;
}
READ8_DEVICE_HANDLER( tms5110_romclk_r )
{
tms5110_state *tms = get_safe_token(device);
/* bring up to date first */
stream_update(tms->stream);
/* create and start timer if necessary */
if (tms->romclk_timer == NULL)
{
tms->romclk_timer = timer_alloc(device->machine, romclk_timer_cb, (void *) device);
timer_adjust_periodic(tms->romclk_timer, ATTOTIME_IN_HZ(device->clock / 40), 0, ATTOTIME_IN_HZ(device->clock / 40));
}
return tms->romclk_state;
}

2
src/emu/sound/tms5110.h
View File

@ -29,6 +29,8 @@ WRITE8_DEVICE_HANDLER( tms5110_ctl_w );
READ8_DEVICE_HANDLER( tms5110_ctl_r );
WRITE8_DEVICE_HANDLER( tms5110_pdc_w );
READ8_DEVICE_HANDLER( tms5110_romclk_r );
/* m58817 status line */
READ8_DEVICE_HANDLER( m58817_status_r );