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undrfire: Use ADC0808 device for cbombers

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The 'unknown hardware' for undrfire is mapped at the same place as the
ADC for combers, but it's not fitted on the PCB.
This commit is contained in:
Dirk Best 2018-04-02 11:59:08 +02:00
parent f51a4bf78b
commit 3fc25775f1
2 changed files with 17 additions and 74 deletions
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70
src/mame/drivers/undrfire.cpp
View File

@ -193,6 +193,7 @@ Board contains only 29 ROMs and not much else.
#include "audio/taito_en.h"
#include "cpu/m68000/m68000.h"
#include "machine/adc0808.h"
#include "machine/eepromser.h"
#include "machine/taitoio.h"
#include "machine/watchdog.h"
@ -202,23 +203,6 @@ Board contains only 29 ROMs and not much else.
#include "cbombers.lh"
/***********************************************************
INTERRUPTS
***********************************************************/
void undrfire_state::device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr)
{
switch (id)
{
case TIMER_INTERRUPT5:
m_maincpu->set_input_line(5, HOLD_LINE);
break;
default:
assert_always(false, "Unknown id in undrfire_state::device_timer");
}
}
/**********************************************************
GAME INPUTS
**********************************************************/
@ -258,36 +242,6 @@ WRITE16_MEMBER(undrfire_state::shared_ram_w)
}
}
/* Some unknown hardware byte mapped at $600002-5 */
READ32_MEMBER(undrfire_state::unknown_hardware_r)
{
switch (offset) /* four single bytes are read in sequence at $156e */
{
case 0x00: /* $600002-3 */
{
return 0xffff; // no idea what they should be
}
case 0x01: /* $600004-5 */
{
return 0xffff0000; // no idea what they should be
}
}
return 0x0;
}
WRITE32_MEMBER(undrfire_state::unknown_int_req_w)
{
/* 10000 cycle delay is arbitrary */
timer_set(m_maincpu->cycles_to_attotime(10000), TIMER_INTERRUPT5);
}
READ32_MEMBER(undrfire_state::undrfire_lightgun_r)
{
int x,y;
@ -380,20 +334,6 @@ WRITE32_MEMBER(undrfire_state::cbombers_cpua_ctrl_w)
m_subcpu->set_input_line(INPUT_LINE_RESET, (data & 0x1000) ? CLEAR_LINE : ASSERT_LINE);
}
READ32_MEMBER(undrfire_state::cbombers_adc_r)
{
return (ioport("STEER")->read() << 24);
}
WRITE8_MEMBER(undrfire_state::cbombers_adc_w)
{
/* One interrupt per input port (4 per frame, though only 2 used).
1000 cycle delay is arbitrary */
/* TODO: hook it up to offset 0 only otherwise cbomber proto keeps sending irqs.
Could or could not be right. */
if(offset == 0)
timer_set(m_maincpu->cycles_to_attotime(1000), TIMER_INTERRUPT5);
}
/***********************************************************
MEMORY STRUCTURES
@ -408,7 +348,7 @@ void undrfire_state::undrfire_map(address_map &map)
// AM_RANGE(0x304400, 0x304403) AM_RAM // debugging - doesn't change ???
map(0x400000, 0x400003).w(this, FUNC(undrfire_state::motor_control_w)); /* gun vibration */
map(0x500000, 0x500007).rw("tc0510nio", FUNC(tc0510nio_device::read), FUNC(tc0510nio_device::write));
map(0x600000, 0x600007).rw(this, FUNC(undrfire_state::unknown_hardware_r), FUNC(undrfire_state::unknown_int_req_w)); /* int request for unknown hardware */
map(0x600000, 0x600007).noprw(); // space for ADC0809, not fitted on pcb
map(0x700000, 0x7007ff).rw("taito_en:dpram", FUNC(mb8421_device::left_r), FUNC(mb8421_device::left_w));
map(0x800000, 0x80ffff).rw(m_tc0480scp, FUNC(tc0480scp_device::long_r), FUNC(tc0480scp_device::long_w)); /* tilemaps */
map(0x830000, 0x83002f).rw(m_tc0480scp, FUNC(tc0480scp_device::ctrl_long_r), FUNC(tc0480scp_device::ctrl_long_w));
@ -428,7 +368,7 @@ void undrfire_state::cbombers_cpua_map(address_map &map)
map(0x300000, 0x303fff).ram().share("spriteram");
map(0x400000, 0x400003).w(this, FUNC(undrfire_state::cbombers_cpua_ctrl_w));
map(0x500000, 0x500007).rw("tc0510nio", FUNC(tc0510nio_device::read), FUNC(tc0510nio_device::write));
map(0x600000, 0x600007).r(this, FUNC(undrfire_state::cbombers_adc_r)).w(this, FUNC(undrfire_state::cbombers_adc_w));
map(0x600000, 0x600007).rw("adc", FUNC(adc0808_device::data_r), FUNC(adc0808_device::address_offset_start_w)).umask32(0xffffffff);
map(0x700000, 0x7007ff).rw("taito_en:dpram", FUNC(mb8421_device::left_r), FUNC(mb8421_device::left_w));
map(0x800000, 0x80ffff).rw(m_tc0480scp, FUNC(tc0480scp_device::long_r), FUNC(tc0480scp_device::long_w)); /* tilemaps */
map(0x830000, 0x83002f).rw(m_tc0480scp, FUNC(tc0480scp_device::ctrl_long_r), FUNC(tc0480scp_device::ctrl_long_w));
@ -692,6 +632,10 @@ MACHINE_CONFIG_START(undrfire_state::cbombers)
MCFG_EEPROM_SERIAL_93C46_ADD("eeprom")
MCFG_DEVICE_ADD("adc", ADC0809, 500000) // unknown clock
MCFG_ADC0808_EOC_FF_CB(INPUTLINE("maincpu", 5))
MCFG_ADC0808_IN0_CB(IOPORT("STEER"))
MCFG_DEVICE_ADD("tc0510nio", TC0510NIO, 0)
MCFG_TC0510NIO_READ_0_CB(IOPORT("INPUTS0"))
MCFG_TC0510NIO_READ_1_CB(IOPORT("INPUTS1"))

21
src/mame/includes/undrfire.h
View File

@ -36,6 +36,16 @@ public:
m_gfxdecode(*this, "gfxdecode"),
m_palette(*this, "palette") { }
void undrfire(machine_config &config);
void cbombers(machine_config &config);
DECLARE_DRIVER_INIT(undrfire);
DECLARE_DRIVER_INIT(cbombers);
protected:
virtual void video_start() override;
private:
required_device<cpu_device> m_maincpu;
optional_device<cpu_device> m_subcpu;
required_device<tc0100scn_device> m_tc0100scn;
@ -55,29 +65,18 @@ public:
DECLARE_WRITE8_MEMBER(coin_word_w);
DECLARE_READ16_MEMBER(shared_ram_r);
DECLARE_WRITE16_MEMBER(shared_ram_w);
DECLARE_READ32_MEMBER(unknown_hardware_r);
DECLARE_WRITE32_MEMBER(unknown_int_req_w);
DECLARE_READ32_MEMBER(undrfire_lightgun_r);
DECLARE_WRITE32_MEMBER(rotate_control_w);
DECLARE_WRITE32_MEMBER(motor_control_w);
DECLARE_WRITE32_MEMBER(cbombers_cpua_ctrl_w);
DECLARE_READ32_MEMBER(cbombers_adc_r);
DECLARE_WRITE8_MEMBER(cbombers_adc_w);
DECLARE_READ_LINE_MEMBER(frame_counter_r);
DECLARE_DRIVER_INIT(undrfire);
DECLARE_DRIVER_INIT(cbombers);
virtual void video_start() override;
uint32_t screen_update_undrfire(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
uint32_t screen_update_cbombers(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
INTERRUPT_GEN_MEMBER(undrfire_interrupt);
void draw_sprites(screen_device &screen, bitmap_ind16 &bitmap,const rectangle &cliprect,const int *primasks,int x_offs,int y_offs);
void draw_sprites_cbombers(screen_device &screen, bitmap_ind16 &bitmap,const rectangle &cliprect,const int *primasks,int x_offs,int y_offs);
void undrfire(machine_config &config);
void cbombers(machine_config &config);
void cbombers_cpua_map(address_map &map);
void cbombers_cpub_map(address_map &map);
void undrfire_map(address_map &map);
protected:
virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override;
};