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Minor gameplan changes in attempts to get leprechn music playing again.

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This commit is contained in:
Aaron Giles 2008-07-24 08:38:06 +00:00
parent 56d6052e1f
commit 4900606a62
3 changed files with 19 additions and 32 deletions
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2
src/emu/machine/6532riot.c
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@ -176,7 +176,7 @@ static TIMER_CALLBACK( timer_end_callback )
if (riot->timerstate == TIMER_COUNTING)
{
riot->timerstate = TIMER_FINISHING;
timer_adjust_oneshot(riot->timer, ticks_to_attotime(255, riot->clock), 0);
timer_adjust_oneshot(riot->timer, ticks_to_attotime(256, riot->clock), 0);
/* signal timer IRQ as well */
riot->irqstate |= TIMER_FLAG;

44
src/mame/drivers/gameplan.c
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@ -127,32 +127,33 @@ static const struct via6522_interface via_1_interface =
static WRITE8_HANDLER( audio_reset_w )
{
cpunum_set_input_line(machine, 1, INPUT_LINE_RESET, (data & 1) ? CLEAR_LINE : ASSERT_LINE);
gameplan_state *state = machine->driver_data;
cpunum_set_input_line(machine, 1, INPUT_LINE_RESET, data ? CLEAR_LINE : ASSERT_LINE);
if (data == 0)
{
device_reset(state->riot);
cpu_boost_interleave(attotime_zero, ATTOTIME_IN_USEC(10));
}
}
static WRITE8_HANDLER( audio_cmd_w )
{
gameplan_state *state = machine->driver_data;
state->audio_cmd = data & 0x7f;
riot6532_porta_in_set(state->riot, data, 0x7f);
}
static WRITE8_HANDLER( audio_trigger_w )
{
gameplan_state *state = machine->driver_data;
UINT8 cmd = (data << 7) | (state->audio_cmd & 0x7f);
soundlatch_w(machine, 0, cmd);
riot6532_porta_in_set(state->riot, cmd, 0xff);
riot6532_porta_in_set(state->riot, data << 7, 0x80);
}
static const struct via6522_interface via_2_interface =
{
0, soundlatch2_r, /*inputs : A/B */
0, soundlatch_r, /*inputs : A/B */
0, 0, 0, 0, /*inputs : CA/B1,CA/B2 */
audio_cmd_w, 0, /*outputs: A/B */
0, 0, audio_trigger_w, audio_reset_w, /*outputs: CA/B1,CA/B2 */
@ -170,27 +171,23 @@ static const struct via6522_interface via_2_interface =
static void r6532_irq(const device_config *device, int state)
{
cpunum_set_input_line(device->machine, 1, 0, state);
if (state == ASSERT_LINE)
cpu_boost_interleave(attotime_zero, ATTOTIME_IN_USEC(10));
}
static UINT8 r6532_soundlatch_r(const device_config *device, UINT8 olddata)
static void r6532_soundlatch_w(const device_config *device, UINT8 newdata, UINT8 olddata)
{
return soundlatch_r(device->machine, 0);
}
static void r6532_soundlatch2_w(const device_config *device, UINT8 newdata, UINT8 olddata)
{
soundlatch2_w(device->machine, 0, newdata);
soundlatch_w(device->machine, 0, newdata);
}
static const riot6532_interface r6532_interface =
{
r6532_soundlatch_r, /* port A read handler */
NULL, /* port A read handler */
NULL, /* port B read handler */
NULL, /* port A write handler */
r6532_soundlatch2_w, /* port B write handler */
r6532_soundlatch_w, /* port B write handler */
r6532_irq /* IRQ callback */
};
@ -213,7 +210,6 @@ static MACHINE_START( gameplan )
/* register for save states */
state_save_register_global(state->current_port);
state_save_register_global(state->audio_cmd);
}
@ -242,8 +238,6 @@ static ADDRESS_MAP_START( gameplan_main_map, ADDRESS_SPACE_PROGRAM, 8 )
AM_RANGE(0x2000, 0x200f) AM_MIRROR(0x07f0) AM_READWRITE(via_0_r, via_0_w) /* VIA 1 */
AM_RANGE(0x2800, 0x280f) AM_MIRROR(0x07f0) AM_READWRITE(via_1_r, via_1_w) /* VIA 2 */
AM_RANGE(0x3000, 0x300f) AM_MIRROR(0x07f0) AM_READWRITE(via_2_r, via_2_w) /* VIA 3 */
AM_RANGE(0x3800, 0x3fff) AM_NOP
AM_RANGE(0x4000, 0x7fff) AM_NOP
AM_RANGE(0x8000, 0xffff) AM_ROM
ADDRESS_MAP_END
@ -258,12 +252,9 @@ ADDRESS_MAP_END
static ADDRESS_MAP_START( gameplan_audio_map, ADDRESS_SPACE_PROGRAM, 8 )
AM_RANGE(0x0000, 0x007f) AM_MIRROR(0x1780) AM_RAM /* 6532 internal RAM */
AM_RANGE(0x0800, 0x081f) AM_MIRROR(0x17e0) AM_DEVREADWRITE(RIOT6532, "riot", riot6532_r, riot6532_w)
AM_RANGE(0x2000, 0x9fff) AM_NOP
AM_RANGE(0xa000, 0xa000) AM_MIRROR(0x1ffc) AM_WRITE(AY8910_control_port_0_w)
AM_RANGE(0xa001, 0xa001) AM_MIRROR(0x1ffc) AM_READ(AY8910_read_port_0_r)
AM_RANGE(0xa002, 0xa002) AM_MIRROR(0x1ffc) AM_WRITE(AY8910_write_port_0_w)
AM_RANGE(0xa002, 0xa002) AM_MIRROR(0x1ffc) AM_NOP
AM_RANGE(0xc000, 0xdfff) AM_NOP
AM_RANGE(0xe000, 0xe7ff) AM_MIRROR(0x1800) AM_ROM
ADDRESS_MAP_END
@ -272,12 +263,9 @@ ADDRESS_MAP_END
static ADDRESS_MAP_START( leprechn_audio_map, ADDRESS_SPACE_PROGRAM, 8 )
AM_RANGE(0x0000, 0x007f) AM_MIRROR(0x1780) AM_RAM /* 6532 internal RAM */
AM_RANGE(0x0800, 0x081f) AM_MIRROR(0x17e0) AM_DEVREADWRITE(RIOT6532, "riot", riot6532_r, riot6532_w)
AM_RANGE(0x2000, 0x9fff) AM_NOP
AM_RANGE(0xa000, 0xa000) AM_MIRROR(0x1ffc) AM_WRITE(AY8910_control_port_0_w)
AM_RANGE(0xa001, 0xa001) AM_MIRROR(0x1ffc) AM_READ(AY8910_read_port_0_r)
AM_RANGE(0xa002, 0xa002) AM_MIRROR(0x1ffc) AM_WRITE(AY8910_write_port_0_w)
AM_RANGE(0xa002, 0xa002) AM_MIRROR(0x1ffc) AM_NOP
AM_RANGE(0xc000, 0xdfff) AM_NOP
AM_RANGE(0xe000, 0xefff) AM_MIRROR(0x1000) AM_ROM
ADDRESS_MAP_END

1
src/mame/includes/gameplan.h
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@ -20,7 +20,6 @@ struct _gameplan_state
{
/* machine state */
UINT8 current_port;
UINT8 audio_cmd;
UINT8 *trvquest_question;
const device_config *riot;