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rulechan.cpp: Add PPIs (nw)

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This commit is contained in:
AJR 2019-08-02 23:50:28 -04:00
parent fc90117d37
commit 875b8d3551
1 changed files with 16 additions and 29 deletions
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45
src/mame/drivers/rulechan.cpp
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@ -174,6 +174,7 @@
#include "machine/nvram.h"
#include "machine/eepromser.h"
#include "machine/timer.h"
#include "machine/i8255.h"
#include "video/v9938.h"
#include "sound/ay8910.h"
#include "screen.h"
@ -189,7 +190,7 @@
#define RAM_PSW 0xf078
#define BALLIN (m_ballin >= 2)
#define MOTORON (m_p32 != 0xf0)
#define MOTORON ((m_p32 & 0x0f) != 0x00)
#define LEDNOTNUM (m_led != m_num)
@ -212,13 +213,9 @@ public:
void rulechan_init();
private:
DECLARE_READ8_MEMBER(port0_r);
DECLARE_WRITE8_MEMBER(port0_w);
DECLARE_READ8_MEMBER(port2_r);
DECLARE_READ8_MEMBER(port3_r);
DECLARE_READ8_MEMBER(port30_r);
DECLARE_READ8_MEMBER(port31_r);
DECLARE_WRITE8_MEMBER(port31_w);
DECLARE_WRITE8_MEMBER(port32_w);
DECLARE_READ8_MEMBER(psg_portA_r);
@ -300,17 +297,12 @@ void rulechan_state::main_io(address_map &map)
{
map.global_mask(0xff);
map(0x00, 0x00).rw(FUNC(rulechan_state::port0_r),FUNC(rulechan_state::port0_w)); // Matrix scan line selector - Must be 0xf0 at power-up.
map(0x01, 0x01).portw("EEPROMOUT"); // EEPROM ok.
map(0x02, 0x02).r(FUNC(rulechan_state::port2_r)); // Matrix button read.
map(0x03, 0x03).r(FUNC(rulechan_state::port3_r));
map(0x00, 0x03).rw("ppi0", FUNC(i8255_device::read), FUNC(i8255_device::write));
map(0x10, 0x11).w("ay8910", FUNC(ay8910_device::address_data_w)); // sound ok.
map(0x12, 0x12).r("ay8910", FUNC(ay8910_device::data_r)); // ports ok.
map(0x20, 0x23).rw(m_v9938, FUNC(v9938_device::read), FUNC(v9938_device::write)); // video ok.
map(0x30, 0x30).r(FUNC(rulechan_state::port30_r)); // wheel control.
map(0x31, 0x31).rw(FUNC(rulechan_state::port31_r),FUNC(rulechan_state::port31_w)); // wheel control - read: Must be 0x00 at power-up.
map(0x32, 0x32).w(FUNC(rulechan_state::port32_w)); // wheel control.
map(0x40, 0x43).nopr().nopw();
map(0x30, 0x33).rw("ppi1", FUNC(i8255_device::read), FUNC(i8255_device::write)); // wheel control.
map(0x40, 0x43).nopr().nopw(); // serial communications?
map(0x60, 0x60).nopw(); // Watchdog.
}
@ -319,21 +311,11 @@ void rulechan_state::main_io(address_map &map)
* Read Handlers *
**************************/
READ8_MEMBER(rulechan_state::port0_r)
{
return 0xf0;
}
READ8_MEMBER(rulechan_state::port2_r)
{
return m_keymx[m_sline]->read();
}
READ8_MEMBER(rulechan_state::port3_r)
{
return 0xff;
}
/******************************
Port 30 - Wheel control *
* bit 2 - ball detector *
@ -347,11 +329,6 @@ READ8_MEMBER(rulechan_state::port30_r)
return m_p30;
}
READ8_MEMBER(rulechan_state::port31_r)
{
return 0x00;
}
READ8_MEMBER(rulechan_state::psg_portA_r)
{
m_lamps[60] = (BIT(m_aux->read(), 3)) ? 0 : 1; // Show Operator Key via layout lamp.
@ -744,6 +721,17 @@ void rulechan_state::rulechan(machine_config &config)
TIMER(config, "ball_speed").configure_periodic(FUNC(rulechan_state::ball_speed), attotime::from_hz(60));
TIMER(config, "wheel_speed").configure_periodic(FUNC(rulechan_state::wheel_speed), attotime::from_hz(60));
i8255_device &ppi0(I8255(config, "ppi0"));
ppi0.out_pa_callback().set(FUNC(rulechan_state::port0_w)); // Matrix scan line selector - Must read back as 0xf0 at power-up.
ppi0.out_pb_callback().set_ioport("EEPROMOUT"); // EEPROM ok.
ppi0.in_pc_callback().set(FUNC(rulechan_state::port2_r)); // Matrix button read.
i8255_device &ppi1(I8255(config, "ppi1"));
ppi1.in_pa_callback().set(FUNC(rulechan_state::port30_r));
ppi1.out_pb_callback().set(FUNC(rulechan_state::port31_w)); // Must read back as 0x00 at power-up.
ppi1.out_pc_callback().set(FUNC(rulechan_state::port32_w));
ppi1.tri_pc_callback().set_constant(0xf0); // Motor off at startup
/* video hardware */
v9938_device &v9938(V9938(config, "v9938", VID_CLOCK));
v9938.set_screen_ntsc("screen");
@ -788,7 +776,6 @@ ROM_END
void rulechan_state::rulechan_init()
{
m_p30 = 0x3c;
m_p32 = 0xf0; // Motor off at startup
m_step = 0;
m_updn2 = 0;
m_updn3 = 0;