Sprinter/mame
2
0
Fork 0
mirror of https://github.com/holub/mame synced 2025-04-22 08:22:15 +03:00
Code Issues Actions Packages Projects Releases Wiki Activity

bigevglf: Soundlatch modernization (nw)

Browse Source
This commit is contained in:
AJR 2018-02-17 22:41:04 -05:00
parent 576d271bf7
commit c6b9727c7f
2 changed files with 23 additions and 101 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

105
src/mame/drivers/bigevglf.cpp
View File

@ -62,6 +62,7 @@ J1100072A
#include "cpu/m6805/m6805.h"
#include "cpu/z80/z80.h"
#include "machine/input_merger.h"
#include "sound/ay8910.h"
#include "sound/dac.h"
#include "sound/volt_reg.h"
@ -78,73 +79,11 @@ WRITE8_MEMBER(bigevglf_state::beg_banking_w)
membank("bank1")->set_entry(m_beg_bank & 0xff); /* empty sockets for IC37-IC44 ROMS */
}
TIMER_CALLBACK_MEMBER(bigevglf_state::from_sound_latch_callback)
{
m_from_sound = param & 0xff;
m_sound_state |= 2;
}
WRITE8_MEMBER(bigevglf_state::beg_fromsound_w)/* write to D800 sets bit 1 in status */
{
machine().scheduler().synchronize(timer_expired_delegate(FUNC(bigevglf_state::from_sound_latch_callback),this), (m_audiocpu->pc() << 16) | data);
}
READ8_MEMBER(bigevglf_state::beg_fromsound_r)
{
/* set a timer to force synchronization after the read */
machine().scheduler().synchronize();
return m_from_sound;
}
READ8_MEMBER(bigevglf_state::beg_soundstate_r)
{
uint8_t ret = m_sound_state;
/* set a timer to force synchronization after the read */
machine().scheduler().synchronize();
m_sound_state &= ~2; /* read from port 21 clears bit 1 in status */
return ret;
}
READ8_MEMBER(bigevglf_state::soundstate_r)
{
/* set a timer to force synchronization after the read */
machine().scheduler().synchronize();
return m_sound_state;
}
TIMER_CALLBACK_MEMBER(bigevglf_state::nmi_callback)
{
if (m_sound_nmi_enable)
m_audiocpu->set_input_line(INPUT_LINE_NMI, PULSE_LINE);
else
m_pending_nmi = 1;
m_sound_state &= ~1;
}
WRITE8_MEMBER(bigevglf_state::sound_command_w)/* write to port 20 clears bit 0 in status */
{
m_for_sound = data;
machine().scheduler().synchronize(timer_expired_delegate(FUNC(bigevglf_state::nmi_callback),this), data);
}
READ8_MEMBER(bigevglf_state::sound_command_r)/* read from D800 sets bit 0 in status */
{
m_sound_state |= 1;
return m_for_sound;
}
WRITE8_MEMBER(bigevglf_state::nmi_disable_w)
{
m_sound_nmi_enable = 0;
}
WRITE8_MEMBER(bigevglf_state::nmi_enable_w)
{
m_sound_nmi_enable = 1;
if (m_pending_nmi)
{
m_audiocpu->set_input_line(INPUT_LINE_NMI, PULSE_LINE);
m_pending_nmi = 0;
}
uint8_t sound_state = m_soundlatch[0]->pending_r() ? 0 : 1;
sound_state |= m_soundlatch[1]->pending_r() ? 2 : 0;
return sound_state;
}
TIMER_CALLBACK_MEMBER(bigevglf_state::deferred_ls74_w)
@ -359,8 +298,9 @@ ADDRESS_MAP_START(bigevglf_state::bigevglf_sub_portmap)
AM_RANGE(0x0e, 0x0e) AM_WRITENOP /* 0-enable MCU, 1-keep reset line ASSERTED; D0 goes to the input of ls74 and the /Q of this ls74 goes to reset line on 68705 */
AM_RANGE(0x10, 0x17) AM_WRITE(beg13_a_clr_w)
AM_RANGE(0x18, 0x1f) AM_WRITE(beg13_b_set_w)
AM_RANGE(0x20, 0x20) AM_READWRITE(beg_fromsound_r, sound_command_w)
AM_RANGE(0x21, 0x21) AM_READ(beg_soundstate_r)
AM_RANGE(0x20, 0x20) AM_DEVREAD("soundlatch2", generic_latch_8_device, read)
AM_RANGE(0x20, 0x20) AM_DEVWRITE("soundlatch1", generic_latch_8_device, write)
AM_RANGE(0x21, 0x21) AM_READ(soundstate_r)
ADDRESS_MAP_END
@ -376,9 +316,11 @@ ADDRESS_MAP_START(bigevglf_state::sound_map)
AM_RANGE(0xca00, 0xca0d) AM_DEVWRITE("msm", msm5232_device, write)
AM_RANGE(0xcc00, 0xcc00) AM_WRITENOP
AM_RANGE(0xce00, 0xce00) AM_WRITENOP
AM_RANGE(0xd800, 0xd800) AM_READWRITE(sound_command_r, beg_fromsound_w) /* write to D800 sets bit 1 in status */
AM_RANGE(0xda00, 0xda00) AM_READWRITE(soundstate_r, nmi_enable_w)
AM_RANGE(0xdc00, 0xdc00) AM_WRITE(nmi_disable_w)
AM_RANGE(0xd800, 0xd800) AM_DEVREAD("soundlatch1", generic_latch_8_device, read)
AM_RANGE(0xd800, 0xd800) AM_DEVWRITE("soundlatch2", generic_latch_8_device, write) /* write to D800 sets bit 1 in status */
AM_RANGE(0xda00, 0xda00) AM_READ(soundstate_r)
AM_RANGE(0xda00, 0xda00) AM_DEVWRITE("soundnmi", input_merger_device, in_set<1>) // enable NMI
AM_RANGE(0xdc00, 0xdc00) AM_DEVWRITE("soundnmi", input_merger_device, in_clear<1>) // disable NMI
AM_RANGE(0xde00, 0xde00) AM_READNOP AM_DEVWRITE("dac", dac_byte_interface, write) /* signed 8-bit DAC & unknown read */
AM_RANGE(0xe000, 0xefff) AM_READNOP /* space for diagnostics ROM */
ADDRESS_MAP_END
@ -412,16 +354,7 @@ void bigevglf_state::machine_start()
save_item(NAME(m_beg_bank));
save_item(NAME(m_port_select));
save_item(NAME(m_sound_nmi_enable));
save_item(NAME(m_pending_nmi));
save_item(NAME(m_for_sound));
save_item(NAME(m_from_sound));
save_item(NAME(m_sound_state));
save_item(NAME(m_mcu_coin_bit5));
}
void bigevglf_state::machine_reset()
@ -435,12 +368,6 @@ void bigevglf_state::machine_reset()
m_beg_bank = 0;
m_port_select = 0;
m_sound_nmi_enable = 0;
m_pending_nmi = 0;
m_for_sound = 0;
m_from_sound = 0;
m_sound_state = 0;
m_mcu_coin_bit5 = 0;
}
@ -464,6 +391,14 @@ MACHINE_CONFIG_START(bigevglf_state::bigevglf)
2 irqs/frame give good music tempo but also SOUND ERROR in test mode,
4 irqs/frame give SOUND OK in test mode but music seems to be running too fast */
MCFG_GENERIC_LATCH_8_ADD("soundlatch1")
MCFG_GENERIC_LATCH_DATA_PENDING_CB(DEVWRITELINE("soundnmi", input_merger_device, in_w<0>))
MCFG_GENERIC_LATCH_8_ADD("soundlatch2")
MCFG_INPUT_MERGER_ALL_HIGH("soundnmi")
MCFG_INPUT_MERGER_OUTPUT_HANDLER(INPUTLINE("audiocpu", INPUT_LINE_NMI))
MCFG_DEVICE_ADD("bmcu", TAITO68705_MCU, 2000000) /* ??? */
MCFG_QUANTUM_TIME(attotime::from_hz(600)) /* 10 CPU slices per frame - interleaving is forced on the fly */

19
src/mame/includes/bigevglf.h
View File

@ -1,6 +1,7 @@
// license:GPL-2.0+
// copyright-holders:Jarek Burczynski, Tomasz Slanina
#include "sound/msm5232.h"
#include "machine/gen_latch.h"
#include "machine/taito68705interface.h"
#include "screen.h"
@ -16,6 +17,7 @@ public:
m_bmcu(*this, "bmcu"),
m_maincpu(*this, "maincpu"),
m_msm(*this, "msm"),
m_soundlatch(*this, "soundlatch%u", 1),
m_gfxdecode(*this, "gfxdecode"),
m_screen(*this, "screen"),
m_palette(*this, "palette") { }
@ -32,13 +34,6 @@ public:
uint32_t m_plane_selected;
uint32_t m_plane_visible;
/* sound-related */
int m_sound_nmi_enable;
int m_pending_nmi;
uint8_t m_for_sound;
uint8_t m_from_sound;
uint8_t m_sound_state;
/* MCU related */
int m_mcu_coin_bit5;
@ -51,14 +46,7 @@ public:
required_device<cpu_device> m_audiocpu;
optional_device<taito68705_mcu_device> m_bmcu;
DECLARE_WRITE8_MEMBER(beg_banking_w);
DECLARE_WRITE8_MEMBER(beg_fromsound_w);
DECLARE_READ8_MEMBER(beg_fromsound_r);
DECLARE_READ8_MEMBER(beg_soundstate_r);
DECLARE_READ8_MEMBER(soundstate_r);
DECLARE_WRITE8_MEMBER(sound_command_w);
DECLARE_READ8_MEMBER(sound_command_r);
DECLARE_WRITE8_MEMBER(nmi_disable_w);
DECLARE_WRITE8_MEMBER(nmi_enable_w);
DECLARE_WRITE8_MEMBER(beg13_a_clr_w);
DECLARE_WRITE8_MEMBER(beg13_b_clr_w);
DECLARE_WRITE8_MEMBER(beg13_a_set_w);
@ -78,12 +66,11 @@ public:
virtual void machine_reset() override;
virtual void video_start() override;
uint32_t screen_update_bigevglf(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
TIMER_CALLBACK_MEMBER(from_sound_latch_callback);
TIMER_CALLBACK_MEMBER(nmi_callback);
TIMER_CALLBACK_MEMBER(deferred_ls74_w);
void draw_sprites( bitmap_ind16 &bitmap, const rectangle &cliprect );
required_device<cpu_device> m_maincpu;
required_device<msm5232_device> m_msm;
required_device_array<generic_latch_8_device, 2> m_soundlatch;
required_device<gfxdecode_device> m_gfxdecode;
required_device<screen_device> m_screen;
required_device<palette_device> m_palette;