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ltcasino: Provide IRQ through PIA; clean up tabs in comments (nw)

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This commit is contained in:
AJR 2019-04-01 20:22:53 -04:00
parent 9d85fe1188
commit ad745f79ae
1 changed files with 18 additions and 13 deletions
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31
src/mame/drivers/ltcasino.cpp
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@ -3,25 +3,25 @@
/***************************************************************************
Little Casino
Little Casino II
Little Casino II
Mini Vegas 4in1
Non-Payout 'Gambling' style games
TODO:
- Clocks need to be verified
- Timing is probably wrong, IRQ sources need to be verified
- Timing is probably wrong, IRQ sources need to be verified
- Figure out the rest of the dipswitches
- Keyboard
Notes:
- To enter service mode, press buttons 2 and 4 then reset. Let go
of the buttons once the video test finishes. Some games also
enter service mode if you disable all games via the dipswitches.
Once in service mode, press both buttons 2 and 4 to advance to
next screen.
- The name "Little Casino II" is just reflected by a sticker on the
cabinet - the title screen is still "Little Casino"
- To enter service mode, press buttons 2 and 4 then reset. Let go
of the buttons once the video test finishes. Some games also
enter service mode if you disable all games via the dipswitches.
Once in service mode, press both buttons 2 and 4 to advance to
next screen.
- The name "Little Casino II" is just reflected by a sticker on the
cabinet - the title screen is still "Little Casino"
- Color version of "Little Casino" is undumped (flyer exists)?
@ -70,6 +70,7 @@ Other: Hitachi HD46821P 1MHz NMOS Peripheral Interface Adapter (PIA) x 2
#include "emu.h"
#include "cpu/m6502/m6502.h"
#include "machine/6821pia.h"
#include "machine/input_merger.h"
#include "machine/nvram.h"
#include "sound/ay8910.h"
#include "video/tms9927.h"
@ -494,13 +495,18 @@ void ltcasino_state::ltcasino(machine_config &config)
M6502(config, m_maincpu, 18_MHz_XTAL/16); // clock unknown
m_maincpu->set_addrmap(AS_PROGRAM, &ltcasino_state::main_map);
input_merger_device &mainirq(INPUT_MERGER_ANY_HIGH(config, "mainirq"));
mainirq.output_handler().set_inputline(m_maincpu, m6502_device::IRQ_LINE);
NVRAM(config, "nvram");
PIA6821(config, m_pia[0], 0);
PIA6821(config, m_pia[0]);
m_pia[0]->readpa_handler().set(FUNC(ltcasino_state::input_q_r));
m_pia[0]->writepb_handler().set(FUNC(ltcasino_state::output_r_w));
m_pia[0]->irqa_handler().set("mainirq", FUNC(input_merger_device::in_w<0>));
m_pia[0]->irqb_handler().set("mainirq", FUNC(input_merger_device::in_w<1>));
PIA6821(config, m_pia[1], 0);
PIA6821(config, m_pia[1]);
m_pia[1]->readpa_handler().set(FUNC(ltcasino_state::input_s_r));
m_pia[1]->writepb_handler().set(FUNC(ltcasino_state::output_t_w));
@ -511,8 +517,7 @@ void ltcasino_state::ltcasino(machine_config &config)
m_vtc->set_char_width(8);
m_vtc->set_screen("screen");
m_vtc->set_visarea(48, 463, 0, 255);
m_vtc->vsyn_callback().set_inputline("maincpu", 0); // ?
m_vtc->vsyn_callback().append(m_pia[0], FUNC(pia6821_device::cb2_w)); // ?
m_vtc->vsyn_callback().set(m_pia[0], FUNC(pia6821_device::cb2_w)).invert(); // ? (CA1, CA2 also enabled)
SCREEN(config, m_screen, SCREEN_TYPE_RASTER);
m_screen->set_raw(18_MHz_XTAL/2, 560, 48, 464, 268, 0, 256);