summaryrefslogtreecommitdiffstatshomepage
path: root/src/mame/drivers/exzisus.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/mame/drivers/exzisus.c')
-rw-r--r--src/mame/drivers/exzisus.c83
1 files changed, 34 insertions, 49 deletions
diff --git a/src/mame/drivers/exzisus.c b/src/mame/drivers/exzisus.c
index 2afad924eea..a122bfc9b57 100644
--- a/src/mame/drivers/exzisus.c
+++ b/src/mame/drivers/exzisus.c
@@ -46,39 +46,35 @@ TODO:
***************************************************************************/
-WRITE8_MEMBER(exzisus_state::exzisus_cpua_bankswitch_w)
+WRITE8_MEMBER(exzisus_state::cpua_bankswitch_w)
{
- UINT8 *RAM = memregion("cpua")->base();
-
if ( (data & 0x0f) != m_cpua_bank )
{
m_cpua_bank = data & 0x0f;
if (m_cpua_bank >= 2)
{
- membank("bank2")->set_base(&RAM[ 0x10000 + ( (m_cpua_bank - 2) * 0x4000 ) ] );
+ membank("bank2")->set_entry(m_cpua_bank - 2);
}
}
flip_screen_set(data & 0x40);
}
-WRITE8_MEMBER(exzisus_state::exzisus_cpub_bankswitch_w)
+WRITE8_MEMBER(exzisus_state::cpub_bankswitch_w)
{
- UINT8 *RAM = memregion("cpub")->base();
-
if ( (data & 0x0f) != m_cpub_bank )
{
m_cpub_bank = data & 0x0f;
if (m_cpub_bank >= 2)
{
- membank("bank1")->set_base(&RAM[ 0x10000 + ( (m_cpub_bank - 2) * 0x4000 ) ] );
+ membank("bank1")->set_entry(m_cpub_bank - 2);
}
}
flip_screen_set(data & 0x40);
}
-WRITE8_MEMBER(exzisus_state::exzisus_coincounter_w)
+WRITE8_MEMBER(exzisus_state::coincounter_w)
{
coin_lockout_w(machine(), 0,~data & 0x01);
coin_lockout_w(machine(), 1,~data & 0x02);
@@ -86,34 +82,14 @@ WRITE8_MEMBER(exzisus_state::exzisus_coincounter_w)
coin_counter_w(machine(), 1,data & 0x08);
}
-READ8_MEMBER(exzisus_state::exzisus_sharedram_ab_r)
-{
- return m_sharedram_ab[offset];
-}
-
-READ8_MEMBER(exzisus_state::exzisus_sharedram_ac_r)
-{
- return m_sharedram_ac[offset];
-}
-
-WRITE8_MEMBER(exzisus_state::exzisus_sharedram_ab_w)
-{
- m_sharedram_ab[offset] = data;
-}
-
-WRITE8_MEMBER(exzisus_state::exzisus_sharedram_ac_w)
-{
- m_sharedram_ac[offset] = data;
-}
-
// is it ok that cpub_reset refers to cpuc?
-WRITE8_MEMBER(exzisus_state::exzisus_cpub_reset_w)
+WRITE8_MEMBER(exzisus_state::cpub_reset_w)
{
m_cpuc->set_input_line(INPUT_LINE_RESET, PULSE_LINE);
}
#if 0
-// without exzisus_cpub_reset_w, the following patch would be needed for
+// without cpub_reset_w, the following patch would be needed for
// the RAM check to work
DRIVER_INIT_MEMBER(exzisus_state,exzisus)
{
@@ -137,38 +113,38 @@ DRIVER_INIT_MEMBER(exzisus_state,exzisus)
static ADDRESS_MAP_START( cpua_map, AS_PROGRAM, 8, exzisus_state )
AM_RANGE(0x0000, 0x7fff) AM_ROM
AM_RANGE(0x8000, 0xbfff) AM_ROMBANK("bank2")
- AM_RANGE(0xc000, 0xc5ff) AM_READWRITE(exzisus_objectram_1_r, exzisus_objectram_1_w) AM_SHARE("objectram1")
- AM_RANGE(0xc600, 0xdfff) AM_READWRITE(exzisus_videoram_1_r, exzisus_videoram_1_w) AM_SHARE("videoram1")
- AM_RANGE(0xe000, 0xefff) AM_READWRITE(exzisus_sharedram_ac_r, exzisus_sharedram_ac_w) AM_SHARE("sharedram_ac")
- AM_RANGE(0xf400, 0xf400) AM_WRITE(exzisus_cpua_bankswitch_w)
- AM_RANGE(0xf404, 0xf404) AM_WRITE(exzisus_cpub_reset_w) // ??
- AM_RANGE(0xf800, 0xffff) AM_READWRITE(exzisus_sharedram_ab_r, exzisus_sharedram_ab_w) AM_SHARE("sharedram_ab")
+ AM_RANGE(0xc000, 0xc5ff) AM_RAM AM_SHARE("objectram1")
+ AM_RANGE(0xc600, 0xdfff) AM_RAM AM_SHARE("videoram1")
+ AM_RANGE(0xe000, 0xefff) AM_RAM AM_SHARE("sharedram_ac")
+ AM_RANGE(0xf400, 0xf400) AM_WRITE(cpua_bankswitch_w)
+ AM_RANGE(0xf404, 0xf404) AM_WRITE(cpub_reset_w) // ??
+ AM_RANGE(0xf800, 0xffff) AM_RAM AM_SHARE("sharedram_ab")
ADDRESS_MAP_END
static ADDRESS_MAP_START( cpub_map, AS_PROGRAM, 8, exzisus_state )
AM_RANGE(0x0000, 0x7fff) AM_ROM
AM_RANGE(0x8000, 0xbfff) AM_ROMBANK("bank1")
- AM_RANGE(0xc000, 0xc5ff) AM_READWRITE(exzisus_objectram_0_r, exzisus_objectram_0_w) AM_SHARE("objectram0")
- AM_RANGE(0xc600, 0xdfff) AM_READWRITE(exzisus_videoram_0_r, exzisus_videoram_0_w) AM_SHARE("videoram0")
+ AM_RANGE(0xc000, 0xc5ff) AM_RAM AM_SHARE("objectram0")
+ AM_RANGE(0xc600, 0xdfff) AM_RAM AM_SHARE("videoram0")
AM_RANGE(0xe000, 0xefff) AM_RAM
AM_RANGE(0xf000, 0xf000) AM_READNOP AM_DEVWRITE("tc0140syt", tc0140syt_device, master_port_w)
AM_RANGE(0xf001, 0xf001) AM_DEVREADWRITE("tc0140syt", tc0140syt_device, master_comm_r, master_comm_w)
AM_RANGE(0xf400, 0xf400) AM_READ_PORT("P1")
- AM_RANGE(0xf400, 0xf400) AM_WRITE(exzisus_cpub_bankswitch_w)
+ AM_RANGE(0xf400, 0xf400) AM_WRITE(cpub_bankswitch_w)
AM_RANGE(0xf401, 0xf401) AM_READ_PORT("P2")
AM_RANGE(0xf402, 0xf402) AM_READ_PORT("SYSTEM")
- AM_RANGE(0xf402, 0xf402) AM_WRITE(exzisus_coincounter_w)
+ AM_RANGE(0xf402, 0xf402) AM_WRITE(coincounter_w)
AM_RANGE(0xf404, 0xf404) AM_READ_PORT("DSWA")
AM_RANGE(0xf404, 0xf404) AM_WRITENOP // ??
AM_RANGE(0xf405, 0xf405) AM_READ_PORT("DSWB")
- AM_RANGE(0xf800, 0xffff) AM_READWRITE(exzisus_sharedram_ab_r, exzisus_sharedram_ab_w)
+ AM_RANGE(0xf800, 0xffff) AM_RAM AM_SHARE("sharedram_ab")
ADDRESS_MAP_END
static ADDRESS_MAP_START( cpuc_map, AS_PROGRAM, 8, exzisus_state )
AM_RANGE(0x0000, 0x7fff) AM_ROM
- AM_RANGE(0x8000, 0x85ff) AM_READWRITE(exzisus_objectram_1_r, exzisus_objectram_1_w)
- AM_RANGE(0x8600, 0x9fff) AM_READWRITE(exzisus_videoram_1_r, exzisus_videoram_1_w)
- AM_RANGE(0xa000, 0xafff) AM_READWRITE(exzisus_sharedram_ac_r, exzisus_sharedram_ac_w)
+ AM_RANGE(0x8000, 0x85ff) AM_RAM AM_SHARE("objectram1")
+ AM_RANGE(0x8600, 0x9fff) AM_RAM AM_SHARE("videoram1")
+ AM_RANGE(0xa000, 0xafff) AM_RAM AM_SHARE("sharedram_ac")
AM_RANGE(0xb000, 0xbfff) AM_RAM
ADDRESS_MAP_END
@@ -234,6 +210,15 @@ INPUT_PORTS_END
***************************************************************************/
+void exzisus_state::machine_start()
+{
+ membank("bank1")->configure_entries(0, 16, memregion("cpub")->base() + 0x10000, 0x4000);
+ membank("bank2")->configure_entries(0, 16, memregion("cpua")->base() + 0x10000, 0x4000);
+
+ save_item(NAME(m_cpua_bank));
+ save_item(NAME(m_cpub_bank));
+}
+
static const gfx_layout charlayout =
{
8, 8,
@@ -279,7 +264,7 @@ static MACHINE_CONFIG_START( exzisus, exzisus_state )
MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(0))
MCFG_SCREEN_SIZE(32*8, 32*8)
MCFG_SCREEN_VISIBLE_AREA(0*8, 32*8-1, 2*8, 30*8-1)
- MCFG_SCREEN_UPDATE_DRIVER(exzisus_state, screen_update_exzisus)
+ MCFG_SCREEN_UPDATE_DRIVER(exzisus_state, screen_update)
MCFG_SCREEN_PALETTE("palette")
MCFG_GFXDECODE_ADD("gfxdecode", "palette", exzisus)
@@ -424,6 +409,6 @@ ROM_START( exzisust )
ROM_LOAD( "b23-05.16l", 0x00800, 0x00400, CRC(87f0f69a) SHA1(37df6fd56245fab9beaabfd86fd8f95d7c42c2a5) )
ROM_END
-GAME( 1987, exzisus, 0, exzisus, exzisus, driver_device, 0, ROT0, "Taito Corporation", "Exzisus (Japan, dedicated)", 0 )
-GAME( 1987, exzisusa, exzisus, exzisus, exzisus, driver_device, 0, ROT0, "Taito Corporation", "Exzisus (Japan, conversion)", 0 )
-GAME( 1987, exzisust, exzisus, exzisus, exzisus, driver_device, 0, ROT0, "Taito Corporation (TAD license)", "Exzisus (TAD license)", 0 )
+GAME( 1987, exzisus, 0, exzisus, exzisus, driver_device, 0, ROT0, "Taito Corporation", "Exzisus (Japan, dedicated)", GAME_SUPPORTS_SAVE )
+GAME( 1987, exzisusa, exzisus, exzisus, exzisus, driver_device, 0, ROT0, "Taito Corporation", "Exzisus (Japan, conversion)", GAME_SUPPORTS_SAVE )
+GAME( 1987, exzisust, exzisus, exzisus, exzisus, driver_device, 0, ROT0, "Taito Corporation (TAD license)", "Exzisus (TAD license)", GAME_SUPPORTS_SAVE )