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deprecat.h

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This commit is contained in:
Angelo Salese 2011-05-10 00:27:44 +00:00
parent bac241c60c
commit 9641b7ef1b
1 changed files with 46 additions and 77 deletions
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123
src/mame/drivers/halleys.c
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@ -19,6 +19,8 @@ Halley's Comet, 1986 Taito
instead of costly bitmaps.
- Ben Bero Beh has collision problems with the falling fireballs and a minor
priority glitch with the "Elevator Action" baddies.
- IRQ system needs a complete rewrite
- De-achoize the blitter code
* Halley's Comet's undocumented DIP switches only work if the player1 start button
is depressed during boot-up.
@ -160,7 +162,6 @@ Video sync 6 F Video sync Post 6 F Post
#include "emu.h"
#include "cpu/z80/z80.h"
#include "includes/taitoipt.h"
#include "deprecat.h"
#include "cpu/m6809/m6809.h"
#include "sound/ay8910.h"
@ -1526,88 +1527,57 @@ static READ8_HANDLER( debug_r )
//**************************************************************************
// Interrupt and Hardware Handlers
static INTERRUPT_GEN( halleys_interrupt )
static TIMER_DEVICE_CALLBACK( halleys_scanline )
{
halleys_state *state = device->machine().driver_data<halleys_state>();
UINT8 latch_data;
halleys_state *state = timer.machine().driver_data<halleys_state>();
int scanline = param;
switch (cpu_getiloops(device))
/* TODO: fix this */
switch (scanline)
{
case 0:
/*
How the custom chips handle sound latching is largely unknown.
Halley's Comet dumps sound commands to register ff8a so
rapidly the AY8910 core sometimes fails to reset itself and
the music stops. Masking sound NMI is not enough to ensure
successive writes are processed properly so it is advisable to
queue sound commands or make the main CPU yield for a minimum
of 600 Z80 cycles. Furthermore, soundlatch NMI interval should
not be too much shorter than music IRQ's period(27306667ns),
and must be longer in case of a reset(00).
Current implementation is quite safe although not 100% foul-proof.
*/
if (state->m_latch_delay) state->m_latch_delay--; else
if (state->m_ffcount)
{
state->m_ffcount--;
latch_data = state->m_sound_fifo[state->m_fftail];
state->m_fftail = (state->m_fftail + 1) & (MAX_SOUNDS - 1);
state->m_latch_delay = (latch_data) ? 0 : 4;
soundlatch_w( device->memory().space(AS_PROGRAM), 0, latch_data);
cputag_set_input_line(device->machine(), "audiocpu", INPUT_LINE_NMI, PULSE_LINE);
}
case 248:
// clear collision list of this frame unconditionally
state->m_collision_count = 0;
break;
break;
// In Halley's Comet, NMI is used exclusively to handle coin input
case 1:
device_set_input_line(device, INPUT_LINE_NMI, PULSE_LINE);
break;
case 56*3:
cputag_set_input_line(timer.machine(),"maincpu", INPUT_LINE_NMI, PULSE_LINE);
break;
// FIRQ drives gameplay; we need both types of NMI each frame.
case 2:
state->m_mVectorType = 1; device_set_input_line(device, M6809_FIRQ_LINE, ASSERT_LINE);
break;
case 56*2:
state->m_mVectorType = 1; cputag_set_input_line(timer.machine(),"maincpu", M6809_FIRQ_LINE, ASSERT_LINE);
break;
case 3:
state->m_mVectorType = 0; device_set_input_line(device, M6809_FIRQ_LINE, ASSERT_LINE);
break;
case 56:
state->m_mVectorType = 0; cputag_set_input_line(timer.machine(),"maincpu", M6809_FIRQ_LINE, ASSERT_LINE);
break;
}
}
static INTERRUPT_GEN( benberob_interrupt )
static TIMER_DEVICE_CALLBACK( benberob_scanline )
{
halleys_state *state = device->machine().driver_data<halleys_state>();
UINT8 latch_data;
halleys_state *state = timer.machine().driver_data<halleys_state>();
int scanline = param;
switch (cpu_getiloops(device))
/* TODO: fix this */
switch (scanline)
{
case 0:
if (state->m_latch_delay) state->m_latch_delay--; else
if (state->m_ffcount)
{
state->m_ffcount--;
latch_data = state->m_sound_fifo[state->m_fftail];
state->m_fftail = (state->m_fftail + 1) & (MAX_SOUNDS - 1);
state->m_latch_delay = (latch_data) ? 0 : 4;
soundlatch_w(device->memory().space(AS_PROGRAM), 0, latch_data);
cputag_set_input_line(device->machine(), "audiocpu", INPUT_LINE_NMI, PULSE_LINE);
}
break;
case 248:
break;
case 1:
device_set_input_line(device, INPUT_LINE_NMI, PULSE_LINE);
break;
case 56*3:
cputag_set_input_line(timer.machine(),"maincpu", INPUT_LINE_NMI, PULSE_LINE);
break;
case 2:
case 3:
case 56*2:
case 56*1:
// FIRQ must not happen when the blitter is being updated or it'll cause serious screen artifacts
if (!state->m_blitter_busy) device_set_input_line(device, M6809_FIRQ_LINE, ASSERT_LINE); else state->m_firq_level++;
break;
if (!state->m_blitter_busy) cputag_set_input_line(timer.machine(),"maincpu", M6809_FIRQ_LINE, ASSERT_LINE); else state->m_firq_level++;
break;
}
}
@ -1639,12 +1609,10 @@ static WRITE8_DEVICE_HANDLER( sndnmi_msk_w )
static WRITE8_HANDLER( soundcommand_w )
{
halleys_state *state = space->machine().driver_data<halleys_state>();
if (state->m_ffcount < MAX_SOUNDS)
{
state->m_ffcount++;
state->m_sound_fifo[state->m_ffhead] = state->m_io_ram[0x8a] = data;
state->m_ffhead = (state->m_ffhead + 1) & (MAX_SOUNDS - 1);
}
state->m_io_ram[0x8a] = data;
soundlatch_w(space,offset,data);
cputag_set_input_line(space->machine(), "audiocpu", INPUT_LINE_NMI, PULSE_LINE);
}
@ -1733,7 +1701,7 @@ static INPUT_PORTS_START( benberob )
PORT_DIPSETTING( 0x08, "3" )
PORT_DIPSETTING( 0x10, "4" )
PORT_DIPSETTING( 0x18, "5" )
PORT_DIPSETTING( 0x00, "Infinite (Cheat)" )
PORT_DIPSETTING( 0x00, DEF_STR( Infinite ) )
PORT_DIPUNKNOWN( 0x20, IP_ACTIVE_LOW )
PORT_DIPNAME( 0x40, 0x40, DEF_STR( Flip_Screen ) ) /* TO DO : confirm OFF/ON when screen flipping emulated */
PORT_DIPSETTING( 0x40, DEF_STR( Off ) )
@ -1796,7 +1764,7 @@ static INPUT_PORTS_START( benberob )
PORT_DIPNAME( 0x20, 0x20, "Show Year" )
PORT_DIPSETTING( 0x00, DEF_STR( No ) )
PORT_DIPSETTING( 0x20, DEF_STR( Yes ) )
PORT_DIPNAME( 0x40, 0x40, "No Hit (Cheat)" )
PORT_DIPNAME( 0x40, 0x40, "No Hit" )
PORT_DIPSETTING( 0x40, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_DIPNAME( 0x80, 0x80, "Maximum Credits" )
@ -1875,10 +1843,10 @@ static INPUT_PORTS_START( halleys )
However, they enable debug features if you press START1 during the boot sequence. */
PORT_START("DSW3") /* 0xff97 */
PORT_DIPUNUSED_DIPLOC( 0x01, IP_ACTIVE_LOW, "SW2:1" )
PORT_DIPNAME( 0x02, 0x02, "Free Play (Cheat)" ) PORT_DIPLOCATION("SW2:2")
PORT_DIPNAME( 0x02, 0x02, DEF_STR( Free_Play ) ) PORT_DIPLOCATION("SW2:2")
PORT_DIPSETTING( 0x02, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_DIPNAME( 0x1c, 0x1c, "Start Area (Cheat)" ) PORT_DIPLOCATION("SW2:3,4,5")
PORT_DIPNAME( 0x1c, 0x1c, "Start Area" ) PORT_DIPLOCATION("SW2:3,4,5")
PORT_DIPSETTING( 0x1c, "1 (Earth)" )
PORT_DIPSETTING( 0x18, "4 (Venus)" )
PORT_DIPSETTING( 0x14, "7 (Mercury)" )
@ -1888,10 +1856,10 @@ static INPUT_PORTS_START( halleys )
PORT_DIPSETTING( 0x04, "19 (Uranus)" )
PORT_DIPSETTING( 0x00, "22 (Saturn)" )
PORT_DIPUNUSED_DIPLOC( 0x20, IP_ACTIVE_LOW, "SW2:6" )
PORT_DIPNAME( 0x40, 0x40, "Invincibility (Cheat)") PORT_DIPLOCATION("SW2:7")
PORT_DIPNAME( 0x40, 0x40, "Invincibility") PORT_DIPLOCATION("SW2:7")
PORT_DIPSETTING( 0x40, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_DIPNAME( 0x80, 0x80, "Infinite Lives (Cheat)" ) PORT_DIPLOCATION("SW2:8")
PORT_DIPNAME( 0x80, 0x80, "Infinite Lives" ) PORT_DIPLOCATION("SW2:8")
PORT_DIPSETTING( 0x80, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
@ -1983,7 +1951,7 @@ static const ay8910_interface ay8910_config =
static MACHINE_CONFIG_START( halleys, halleys_state )
MCFG_CPU_ADD("maincpu", M6809, XTAL_19_968MHz/12) /* verified on pcb */
MCFG_CPU_PROGRAM_MAP(halleys_map)
MCFG_CPU_VBLANK_INT_HACK(halleys_interrupt, 4)
MCFG_TIMER_ADD_SCANLINE("scantimer", halleys_scanline, "screen", 0, 1)
MCFG_CPU_ADD("audiocpu", Z80, XTAL_6MHz/2) /* verified on pcb */
MCFG_CPU_PROGRAM_MAP(sound_map)
@ -2027,7 +1995,8 @@ MACHINE_CONFIG_END
static MACHINE_CONFIG_DERIVED( benberob, halleys )
MCFG_CPU_MODIFY("maincpu")
MCFG_CPU_CLOCK(XTAL_19_968MHz/12) /* not verified but pcb identical to halley's comet */
MCFG_CPU_VBLANK_INT_HACK(benberob_interrupt, 4)
MCFG_TIMER_MODIFY("scantimer")
MCFG_TIMER_CALLBACK(benberob_scanline)
MCFG_SCREEN_MODIFY("screen")
MCFG_SCREEN_UPDATE(benberob)