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darius.cpp: Break up "IOC" handlers (nw)

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This commit is contained in:
AJR 2017-11-25 11:15:44 -05:00
parent 986ab35d64
commit 293cbcbd4b
2 changed files with 24 additions and 63 deletions
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80
src/mame/drivers/darius.cpp
View File

@ -170,65 +170,21 @@ WRITE16_MEMBER(darius_state::cpua_ctrl_w)
GAME INPUTS
**********************************************************/
READ16_MEMBER(darius_state::darius_ioc_r)
READ16_MEMBER(darius_state::coin_r)
{
switch (offset)
{
case 0x01:
return (m_ciu->master_comm_r(space, 0) & 0xff); /* sound interface read */
case 0x04:
return ioport("P1")->read();
case 0x05:
return ioport("P2")->read();
case 0x06:
return ioport("SYSTEM")->read();
case 0x07:
return m_coin_word; /* bits 3&4 coin lockouts, must return zero */
case 0x08:
return ioport("DSW")->read();
}
logerror("CPU #0 PC %06x: warning - read unmapped ioc offset %06x\n",space.device().safe_pc(),offset);
return 0xff;
return m_coin_word; /* bits 3&4 coin lockouts, must return zero */
}
WRITE16_MEMBER(darius_state::darius_ioc_w)
WRITE16_MEMBER(darius_state::coin_w)
{
switch (offset)
{
case 0x00: /* sound interface write */
m_ciu->master_port_w(space, 0, data & 0xff);
return;
case 0x01: /* sound interface write */
m_ciu->master_comm_w(space, 0, data & 0xff);
return;
case 0x28: /* unknown, written by both cpus - always 0? */
//popmessage(" address %04x value %04x",offset,data);
return;
case 0x30: /* coin control */
/* bits 7,5,4,0 used on reset */
/* bit 4 used whenever bg is blanked ? */
machine().bookkeeping().coin_lockout_w(0, ~data & 0x02);
machine().bookkeeping().coin_lockout_w(1, ~data & 0x04);
machine().bookkeeping().coin_counter_w(0, data & 0x08);
machine().bookkeeping().coin_counter_w(1, data & 0x40);
m_coin_word = data & 0xffff;
//popmessage(" address %04x value %04x",offset,data);
return;
}
logerror("CPU #0 PC %06x: warning - write unmapped ioc offset %06x with %04x\n",space.device().safe_pc(),offset,data);
/* coin control */
/* bits 7,5,4,0 used on reset */
/* bit 4 used whenever bg is blanked ? */
machine().bookkeeping().coin_lockout_w(0, ~data & 0x02);
machine().bookkeeping().coin_lockout_w(1, ~data & 0x04);
machine().bookkeeping().coin_counter_w(0, data & 0x08);
machine().bookkeeping().coin_counter_w(1, data & 0x40);
m_coin_word = data;
}
@ -240,8 +196,16 @@ static ADDRESS_MAP_START( darius_map, AS_PROGRAM, 16, darius_state )
AM_RANGE(0x000000, 0x05ffff) AM_ROM
AM_RANGE(0x080000, 0x08ffff) AM_RAM /* main RAM */
AM_RANGE(0x0a0000, 0x0a0001) AM_WRITE(cpua_ctrl_w)
AM_RANGE(0x0b0000, 0x0b0001) AM_DEVWRITE("watchdog", watchdog_timer_device, reset16_w)
AM_RANGE(0xc00000, 0xc0007f) AM_READWRITE(darius_ioc_r, darius_ioc_w) /* inputs, sound */
AM_RANGE(0x0b0000, 0x0b0001) AM_DEVREADWRITE("watchdog", watchdog_timer_device, reset16_r, reset16_w)
AM_RANGE(0xc00000, 0xc00001) AM_READNOP AM_DEVWRITE8("ciu", pc060ha_device, master_port_w, 0x00ff)
AM_RANGE(0xc00002, 0xc00003) AM_DEVREADWRITE8("ciu", pc060ha_device, master_comm_r, master_comm_w, 0x00ff)
AM_RANGE(0xc00008, 0xc00009) AM_READ_PORT("P1")
AM_RANGE(0xc0000a, 0xc0000b) AM_READ_PORT("P2")
AM_RANGE(0xc0000c, 0xc0000d) AM_READ_PORT("SYSTEM")
AM_RANGE(0xc0000e, 0xc0000f) AM_READ(coin_r)
AM_RANGE(0xc00010, 0xc00011) AM_READ_PORT("DSW")
AM_RANGE(0xc00050, 0xc00051) AM_NOP // unknown, written by both cpus - always 0?
AM_RANGE(0xc00060, 0xc00061) AM_WRITE(coin_w)
AM_RANGE(0xd00000, 0xd0ffff) AM_DEVREADWRITE("pc080sn", pc080sn_device, word_r, word_w) /* tilemaps */
AM_RANGE(0xd20000, 0xd20003) AM_DEVWRITE("pc080sn", pc080sn_device, yscroll_word_w)
AM_RANGE(0xd40000, 0xd40003) AM_DEVWRITE("pc080sn", pc080sn_device, xscroll_word_w)
@ -256,7 +220,7 @@ ADDRESS_MAP_END
static ADDRESS_MAP_START( darius_cpub_map, AS_PROGRAM, 16, darius_state )
AM_RANGE(0x000000, 0x03ffff) AM_ROM
AM_RANGE(0x040000, 0x04ffff) AM_RAM /* local RAM */
AM_RANGE(0xc00000, 0xc0007f) AM_WRITE(darius_ioc_w) /* only writes $c00050 (?) */
AM_RANGE(0xc00050, 0xc00051) AM_NOP // unknown, written by both cpus - always 0?
AM_RANGE(0xd80000, 0xd80fff) AM_DEVWRITE("palette", palette_device, write) AM_SHARE("palette")
AM_RANGE(0xe00100, 0xe00fff) AM_RAM AM_SHARE("spriteram")
AM_RANGE(0xe01000, 0xe02fff) AM_RAM AM_SHARE("share2")

7
src/mame/includes/darius.h
View File

@ -6,7 +6,6 @@
*************************************************************************/
#include "audio/taitosnd.h"
#include "sound/flt_vol.h"
#include "sound/msm5205.h"
#include "video/pc080sn.h"
@ -27,7 +26,6 @@ public:
m_cpub(*this, "cpub"),
m_adpcm(*this, "adpcm"),
m_pc080sn(*this, "pc080sn"),
m_ciu(*this, "ciu"),
m_filter0_0l(*this, "filter0.0l"),
m_filter0_0r(*this, "filter0.0r"),
m_filter0_1l(*this, "filter0.1l"),
@ -72,7 +70,6 @@ public:
required_device<cpu_device> m_cpub;
required_device<cpu_device> m_adpcm;
required_device<pc080sn_device> m_pc080sn;
required_device<pc060ha_device> m_ciu;
required_device<filter_volume_device> m_filter0_0l;
required_device<filter_volume_device> m_filter0_0r;
@ -96,8 +93,8 @@ public:
required_device<palette_device> m_palette;
DECLARE_WRITE16_MEMBER(cpua_ctrl_w);
DECLARE_READ16_MEMBER(darius_ioc_r);
DECLARE_WRITE16_MEMBER(darius_ioc_w);
DECLARE_READ16_MEMBER(coin_r);
DECLARE_WRITE16_MEMBER(coin_w);
DECLARE_WRITE8_MEMBER(sound_bankswitch_w);
DECLARE_WRITE8_MEMBER(adpcm_command_w);
DECLARE_WRITE8_MEMBER(darius_fm0_pan);