Sprinter/mame
2
0
Fork 0
mirror of https://github.com/holub/mame synced 2025-05-10 16:21:42 +03:00
Code Issues Actions Packages Projects Releases Wiki Activity

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

Browse Source
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
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

31
src/mame/drivers/ltcasino.cpp
View File

@ -3,25 +3,25 @@
/*************************************************************************** /***************************************************************************
Little Casino Little Casino
Little Casino II Little Casino II
Mini Vegas 4in1 Mini Vegas 4in1
Non-Payout 'Gambling' style games Non-Payout 'Gambling' style games
TODO: TODO:
- Clocks need to be verified - 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 - Figure out the rest of the dipswitches
- Keyboard - Keyboard
Notes: Notes:
- To enter service mode, press buttons 2 and 4 then reset. Let go - To enter service mode, press buttons 2 and 4 then reset. Let go
of the buttons once the video test finishes. Some games also of the buttons once the video test finishes. Some games also
enter service mode if you disable all games via the dipswitches. enter service mode if you disable all games via the dipswitches.
Once in service mode, press both buttons 2 and 4 to advance to Once in service mode, press both buttons 2 and 4 to advance to
next screen. next screen.
- The name "Little Casino II" is just reflected by a sticker on the - The name "Little Casino II" is just reflected by a sticker on the
cabinet - the title screen is still "Little Casino" cabinet - the title screen is still "Little Casino"
- Color version of "Little Casino" is undumped (flyer exists)? - 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 "emu.h"
#include "cpu/m6502/m6502.h" #include "cpu/m6502/m6502.h"
#include "machine/6821pia.h" #include "machine/6821pia.h"
#include "machine/input_merger.h"
#include "machine/nvram.h" #include "machine/nvram.h"
#include "sound/ay8910.h" #include "sound/ay8910.h"
#include "video/tms9927.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 M6502(config, m_maincpu, 18_MHz_XTAL/16); // clock unknown
m_maincpu->set_addrmap(AS_PROGRAM, &ltcasino_state::main_map); 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"); 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]->readpa_handler().set(FUNC(ltcasino_state::input_q_r));
m_pia[0]->writepb_handler().set(FUNC(ltcasino_state::output_r_w)); 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]->readpa_handler().set(FUNC(ltcasino_state::input_s_r));
m_pia[1]->writepb_handler().set(FUNC(ltcasino_state::output_t_w)); 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_char_width(8);
m_vtc->set_screen("screen"); m_vtc->set_screen("screen");
m_vtc->set_visarea(48, 463, 0, 255); m_vtc->set_visarea(48, 463, 0, 255);
m_vtc->vsyn_callback().set_inputline("maincpu", 0); // ? m_vtc->vsyn_callback().set(m_pia[0], FUNC(pia6821_device::cb2_w)).invert(); // ? (CA1, CA2 also enabled)
m_vtc->vsyn_callback().append(m_pia[0], FUNC(pia6821_device::cb2_w)); // ?
SCREEN(config, m_screen, SCREEN_TYPE_RASTER); SCREEN(config, m_screen, SCREEN_TYPE_RASTER);
m_screen->set_raw(18_MHz_XTAL/2, 560, 48, 464, 268, 0, 256); m_screen->set_raw(18_MHz_XTAL/2, 560, 48, 464, 268, 0, 256);