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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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13
src/mame/drivers/ltcasino.cpp
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@ -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);