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mame/src/mame/drivers/wmg.cpp
cam900 a936aab036 Make wmg.cpp Working again, nw 
wmg.cpp : Cleanups, Add address_map_bank_device for IO Bankswitching, Add machine_start/reset instead MCFG_MACHINE_START/RESET, Add save state, Fix naming, Fix crash
2018-06-16 23:53:33 +09:00

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// license:BSD-3-Clause
// copyright-holders:Robbbert
/**************************************************************
*
* Williams Multigame (6-game version) driver, by Robbbert,
* 2007/2008.
*
* Thanks to assistance from Peale.
*
**************************************************************/
/*********************************************************************************************************
Game numbers:
0 = The Menu
1 = robotron
2 = joustr
3 = stargate
4 = bubbles
5 = defender
6 = splat
7 = spare position (duplicate of bubbles)
Some documents can be downloaded from http://www.multigame.com/williams.html
Hardware features:
There are 3 boards - the CPU board, the Sound board, and the Widget board.
- The Sound board only has the new sound ROM. The sounds are selected via the bank number from C400.
- The Widget board has the joysticks and buttons connected to it. These are steered to the correct
inputs by a custom-programmed large square XC9572 84-pin chip. This is also controlled by
the bank number from C400.
- The CPU board has 3 components:
-- A DS1225AD 8k x 8 NVRAM. Like the other chips, it is banked, giving each game its own save area.
-- The new cpu ROM, containing code for the 6 games and the menu. Splat and Defender are slightly
modified to work properly on the Robotron hardware. Splat is converted from SC2 to SC1; while
Defender has the I/O devices remapped to suit the hardware.
-- A square custom-programmed 44-pin chip (number rubbed off), which performs all the bank-switching,
the special changes for Defender, the lock feature, and the sound cpu reset. It is not known
which square chip detects and acts on the P1+P2 reset.
Setting it up:
When you first start WMG, you need to initialise the NVRAM properly. Do this by starting wmg,
pressing 1 to cycle through the games list, pressing 2 to run the game. When it says "FACTORY
SETTINGS RESTORED", press F3 to return to the menu. Repeat this procedure for all 6 games.
After that, quit wmg, then restart. On the Setup menu you can personalise the settings with
the 1 and 2 keys. The inputs default to be the same as on the original hardware. You may
change any input individually for each game. Note that the WMG hardware has the Flap and
Inviso buttons wired together. JOUST can be played by 2 players at the same time, player 1
uses the left joystick and the Flap button, while player 2 uses the right joystick and the
Fire button. SPLAT would normally require 4 joysticks, but since the WMG only has 2, it is
limited to a one-player game. Cocktail mode is not supported, WMG must be played on an upright
only. After playing a game, returning to the menu will return to the place you left from. You
can force a return to the Setup by holding F1 and pressing F3. You can also clear out the
menu's NVRAM (not the game's NVRAM), by holding down L and pressing F3.
ToDo:
The game works perfectly. However the code is a bit of a bodge-job, originally for MisfitMAME 0.127.E,
then updated for HBMAME 0.148u1. It could do with a cleanup, and removal of the various hacks. Support
of save-state is also needed.
***********************************************************************************************************/
#include "emu.h"
#include "includes/williams.h"
#include "cpu/m6800/m6800.h"
#include "machine/input_merger.h"
#include "machine/nvram.h"
#include "sound/dac.h"
#include "sound/volt_reg.h"
#include "speaker.h"
#define MASTER_CLOCK (XTAL(12'000'000))
#define SOUND_CLOCK (XTAL(3'579'545))
class wmg_state : public williams_state
{
public:
wmg_state(const machine_config &mconfig, device_type type, const char *tag)
: williams_state(mconfig, type, tag)
, m_p_ram(*this, "nvram")
, m_keyboard(*this, "X%d", 0)
, m_codebank(*this, "codebank")
, m_soundbank(*this, "soundbank")
{ }
void init_wmg();
DECLARE_READ8_MEMBER(wmg_nvram_r);
DECLARE_WRITE8_MEMBER(wmg_nvram_w);
DECLARE_READ8_MEMBER(wmg_pia_0_r);
DECLARE_WRITE8_MEMBER(wmg_c400_w);
DECLARE_WRITE8_MEMBER(wmg_d000_w);
DECLARE_WRITE8_MEMBER(wmg_blitter_w);
DECLARE_WRITE_LINE_MEMBER(wmg_port_select_w);
DECLARE_WRITE8_MEMBER(wmg_sound_reset_w);
DECLARE_WRITE8_MEMBER(wmg_vram_select_w);
DECLARE_CUSTOM_INPUT_MEMBER(wmg_mux_r);
void wmg(machine_config &config);
void wmg_cpu1(address_map &map);
void wmg_cpu2(address_map &map);
void wmg_banked_map(address_map &map);
protected:
virtual void machine_start() override;
virtual void machine_reset() override;
private:
uint8_t m_wmg_c400;
uint8_t m_wmg_d000;
uint8_t m_wmg_port_select;
uint8_t m_wmg_vram_bank;
required_shared_ptr<uint8_t> m_p_ram;
required_ioport_array<17> m_keyboard;
required_memory_bank m_codebank;
required_memory_bank m_soundbank;
};
/*************************************
*
* Address Map
*
*************************************/
void wmg_state::wmg_cpu1(address_map &map)
{
map(0x0000, 0x8fff).bankr("mainbank").writeonly().share("videoram");
map(0x9000, 0xbfff).ram();
map(0xc000, 0xcfff).m(m_bankc000, FUNC(address_map_bank_device::amap8));
map(0xd000, 0xffff).bankr("codebank");
map(0xd000, 0xd000).w(FUNC(wmg_state::wmg_d000_w));
}
void wmg_state::wmg_cpu2(address_map &map)
{
map(0x0000, 0x007f).ram(); /* internal RAM */
map(0x0080, 0x00ff).ram(); /* MC6810 RAM */
map(0x0400, 0x0403).mirror(0x8000).rw(m_pia[2], FUNC(pia6821_device::read), FUNC(pia6821_device::write));
map(0xf000, 0xffff).bankr("soundbank");
}
void wmg_state::wmg_banked_map(address_map &map)
{
map(0x0000, 0x000f).mirror(0x03e0).writeonly().share("paletteram");
map(0x0010, 0x001f).mirror(0x03e0).w(FUNC(williams_state::defender_video_control_w));
map(0x0400, 0x0400).w(FUNC(wmg_state::wmg_c400_w));
map(0x0401, 0x0401).w(FUNC(wmg_state::wmg_sound_reset_w));
map(0x0804, 0x0807).r(FUNC(wmg_state::wmg_pia_0_r)).w(m_pia[0], FUNC(pia6821_device::write));
map(0x080c, 0x080f).rw(m_pia[1], FUNC(pia6821_device::read), FUNC(pia6821_device::write));
map(0x0900, 0x09ff).w(FUNC(wmg_state::wmg_vram_select_w));
map(0x0a00, 0x0a07).w(FUNC(wmg_state::wmg_blitter_w));
map(0x0b00, 0x0bff).r(FUNC(williams_state::williams_video_counter_r));
map(0x0bff, 0x0bff).w(FUNC(williams_state::williams_watchdog_reset_w));
map(0x0c00, 0x0fff).rw(FUNC(wmg_state::wmg_nvram_r), FUNC(wmg_state::wmg_nvram_w));
map(0x1000, 0x4fff).rom().region("maincpu", 0x68000); // Defender roms
/* These next one is actually banked in CPU 1, but its not something Mame can handle very well. Placed here instead. */
map(0xd000, 0xefff).ram().share("nvram");
}
/***************************************************************
*
* Inputs, banked. One set for each game.
* Note: defaults from original games are used.
* JOYSTICK PLAYER(1) is really JOYSTICKLEFT on WMG hardware
* JOYSTICK PLAYER(2) is really JOYSTICKRIGHT on WMG hardware
*
***************************************************************/
static INPUT_PORTS_START( wmg )
PORT_START("IN0")
PORT_BIT( 0xff, IP_ACTIVE_HIGH, IPT_CUSTOM ) PORT_CUSTOM_MEMBER(DEVICE_SELF, wmg_state, wmg_mux_r, "0")
PORT_START("IN1")
PORT_BIT( 0xff, IP_ACTIVE_HIGH, IPT_CUSTOM ) PORT_CUSTOM_MEMBER(DEVICE_SELF, wmg_state, wmg_mux_r, "1")
PORT_START("IN2")
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_OTHER ) PORT_NAME("Auto Up / Manual Down") PORT_TOGGLE PORT_CODE(KEYCODE_F1)
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_OTHER ) PORT_NAME("Advance") PORT_CODE(KEYCODE_F2)
PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_COIN3 )
PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_OTHER ) PORT_NAME("High Score Reset") PORT_CODE(KEYCODE_9)
PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_COIN1 )
PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_COIN2 )
PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_TILT )
PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_UNKNOWN )
/* menu */
PORT_START("X0") // IN000 (game,port,player)
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_JOYSTICK_UP ) PORT_8WAY PORT_NAME("Menu/Left/Up")
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_NAME("Menu/Left/Down")
PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_NAME("Menu/Left/Left")
PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_NAME("Menu/Left/Right")
PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_START1 )
PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_START2 )
PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_JOYSTICKRIGHT_UP ) PORT_8WAY PORT_NAME("Menu/Right/Up")
PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_JOYSTICKRIGHT_DOWN ) PORT_8WAY PORT_NAME("Menu/Right/Down")
PORT_START("X1") // IN010
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_JOYSTICKRIGHT_LEFT ) PORT_8WAY PORT_NAME("Menu/Right/Left")
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_JOYSTICKRIGHT_RIGHT ) PORT_8WAY PORT_NAME("Menu/Right/Right")
PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_NAME("Menu/Fire")
PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_BUTTON2 ) PORT_NAME("Menu/Thrust")
PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_BUTTON3 ) PORT_NAME("Menu/Smart Bomb")
PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_BUTTON4 ) PORT_NAME("Menu/Hyperspace")
PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_BUTTON5 ) PORT_NAME("Menu/Reverse")
PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_BUTTON6 ) PORT_NAME("Menu/Inviso or Flap")
/* robotron */
PORT_START("X2") // IN100
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_JOYSTICK_UP ) PORT_8WAY PORT_NAME("Robotron/Left/Move Up")
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_NAME("Robotron/Left/Move Down")
PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_NAME("Robotron/Left/Move Left")
PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_NAME("Robotron/Left/Move Right")
PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_START2 )
PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_START1 )
PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_JOYSTICKRIGHT_UP ) PORT_8WAY PORT_NAME("Robotron/Right/Fire Up")
PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_JOYSTICKRIGHT_DOWN ) PORT_8WAY PORT_NAME("Robotron/Right/Fire Down")
PORT_START("X3") // IN110
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_JOYSTICKRIGHT_LEFT ) PORT_8WAY PORT_NAME("Robotron/Right/Fire Left")
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_JOYSTICKRIGHT_RIGHT ) PORT_8WAY PORT_NAME("Robotron/Right/Fire Right")
PORT_BIT( 0xfc, IP_ACTIVE_HIGH, IPT_UNKNOWN )
/* joust */
PORT_START("X4") // IN201
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT ) PORT_2WAY PORT_PLAYER(1) PORT_NAME("Joust/P1/Left")
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_2WAY PORT_PLAYER(1) PORT_NAME("Joust/P1/Right")
PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_BUTTON6 ) PORT_NAME("Joust/P1/Flap")
PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_START2 )
PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_START1 )
PORT_BIT( 0xc8, IP_ACTIVE_HIGH, IPT_UNUSED )
PORT_START("X5") // IN202
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT ) PORT_2WAY PORT_PLAYER(2) PORT_NAME("Joust/P2/Left")
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_2WAY PORT_PLAYER(2) PORT_NAME("Joust/P2/Right")
PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_NAME("Joust/P2/Flap")
PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_START2 )
PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_START1 )
PORT_BIT( 0xc8, IP_ACTIVE_HIGH, IPT_UNUSED )
PORT_START("X6") // IN210
PORT_BIT( 0xff, IP_ACTIVE_HIGH, IPT_UNUSED )
/* stargate */
PORT_START("X7") // IN300
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_NAME("Stargate/Fire")
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_BUTTON2 ) PORT_NAME("Stargate/Thrust")
PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_BUTTON3 ) PORT_NAME("Stargate/Smart Bomb")
PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_BUTTON4 ) PORT_NAME("Stargate/Hyperspace")
PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_START2 )
PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_START1 )
PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_BUTTON5 ) PORT_NAME("Stargate/Reverse")
PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_JOYSTICK_DOWN ) PORT_2WAY PORT_NAME("Stargate/Down")
PORT_START("X8") // IN310
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_JOYSTICK_UP ) PORT_2WAY PORT_NAME("Stargate/Up")
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_BUTTON6 ) PORT_NAME("Stargate/Inviso")
PORT_BIT( 0xfc, IP_ACTIVE_HIGH, IPT_UNKNOWN )
/* bubbles */
PORT_START("X9") // IN400
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_JOYSTICK_UP ) PORT_8WAY PORT_NAME("Bubbles/Up")
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_NAME("Bubbles/Down")
PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_NAME("Bubbles/Left")
PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_NAME("Bubble/Right")
PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_START2 )
PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_START1 )
PORT_BIT( 0xc0, IP_ACTIVE_HIGH, IPT_UNKNOWN )
PORT_START("X10") // IN410
PORT_BIT( 0xff, IP_ACTIVE_HIGH, IPT_UNKNOWN )
/* defender */
PORT_START("X11") // IN500
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_NAME("Defender/Fire")
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_BUTTON2 ) PORT_NAME("Defender/Thrust")
PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_BUTTON3 ) PORT_NAME("Defender/Smart Bomb")
PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_BUTTON4 ) PORT_NAME("Defender/Hyperspace")
PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_START2 )
PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_START1 )
PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_BUTTON5 ) PORT_NAME("Defender/Reverse")
PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_JOYSTICK_DOWN) PORT_2WAY PORT_NAME("Defender/Down")
PORT_START("X12") // IN510
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_JOYSTICK_UP ) PORT_2WAY PORT_NAME("Defender/Up")
PORT_BIT( 0xfe, IP_ACTIVE_HIGH, IPT_UNKNOWN )
/* splat - there are no P2 controls, so it can only be played by a single player */
PORT_START("X13") // IN601
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_JOYSTICK_UP ) PORT_8WAY PORT_PLAYER(1) PORT_NAME("Splat/P1/Left/Move Up")
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_PLAYER(1) PORT_NAME("Splat/P1/Left/Move Down")
PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_PLAYER(1) PORT_NAME("Splat/P1/Left/Move Left")
PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_PLAYER(1) PORT_NAME("Splat/P1/Left/Move Right")
PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_START1 )
PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_START2 )
PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_JOYSTICKRIGHT_UP ) PORT_8WAY PORT_PLAYER(1) PORT_NAME("Splat/P1/Right/Fire Up")
PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_JOYSTICKRIGHT_DOWN ) PORT_8WAY PORT_PLAYER(1) PORT_NAME("Splat/P1/Right/Fire Down")
PORT_START("X14") // IN602
PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_START1 )
PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_START2 )
PORT_BIT( 0xcf, IP_ACTIVE_HIGH, IPT_UNKNOWN )
PORT_START("X15") // IN611
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_JOYSTICKRIGHT_LEFT ) PORT_8WAY PORT_PLAYER(1) PORT_NAME("Splat/P1/Right/Fire Left")
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_JOYSTICKRIGHT_RIGHT ) PORT_8WAY PORT_PLAYER(1) PORT_NAME("Splat/P1/Right/Fire Right")
PORT_BIT( 0xfc, IP_ACTIVE_HIGH, IPT_UNKNOWN )
PORT_START("X16") // IN612
PORT_BIT( 0xff, IP_ACTIVE_HIGH, IPT_UNKNOWN )
INPUT_PORTS_END
/*************************************
*
* NVRAM (8k x 8), banked
*
*************************************/
READ8_MEMBER( wmg_state::wmg_nvram_r )
{
return m_p_ram[offset+(m_wmg_c400<<10)];
}
WRITE8_MEMBER( wmg_state::wmg_nvram_w )
{
m_p_ram[offset+(m_wmg_c400<<10)] = data;
}
/*************************************
*
* Blitter
*
*************************************/
WRITE8_MEMBER( wmg_state::wmg_blitter_w )
{
williams_blitter_w(m_maincpu->space(AS_PROGRAM), offset, data, mem_mask);
}
/*************************************
*
* Bankswitching
*
*************************************/
/* switches the banks around when given a game number.
The hardware has a lock feature, so that once a bank is selected, the next choice must be the menu */
WRITE8_MEMBER( wmg_state::wmg_c400_w )
{
data &= 7;
if (m_wmg_c400 == data)
return;
if ((data == 0) || (m_wmg_c400 == 0)) // we must be going to/from the menu
{
m_wmg_c400 = data;
wmg_d000_w( space, 0, 0); // select i/o
m_mainbank->set_entry(m_wmg_vram_bank ? (1+m_wmg_c400) : 0); // Gfx etc
m_codebank->set_entry(data); // Code
m_soundbank->set_entry(data); // Sound
m_soundcpu->reset();
}
}
WRITE8_MEMBER( wmg_state::wmg_sound_reset_w )
{
/* This resets the sound card when bit 0 is low */
if (!BIT(data, 0)) m_soundcpu->reset();
}
WRITE8_MEMBER( wmg_state::wmg_vram_select_w )
{
/* VRAM/ROM banking from bit 0 */
m_wmg_vram_bank = BIT(data, 0);
m_mainbank->set_entry(m_wmg_vram_bank ? (1+m_wmg_c400) : 0);
/* cocktail flip from bit 1 */
m_cocktail = BIT(data, 1);
}
// if defender, choose a rom, else enable i/o
WRITE8_MEMBER( wmg_state::wmg_d000_w )
{
data &= 15;
if (m_wmg_d000 == data)
return;
// defender && data > 0
if ((m_wmg_c400 == 5) && (data))
{
// replace i/o with defender roms
switch (data)
{
/* pages 1,2,3,7 map to ROM banks */
case 1:
case 2:
case 3:
m_bankc000->set_bank(data);
break;
case 7:
m_bankc000->set_bank(4);
break;
default:
printf("Unknown bank %X selected\n",data);
}
}
else
// everything else - choose i/o space
if (data == 0)
{
/* install the i/o devices into c000-cfff */
m_bankc000->set_bank(0);
}
m_wmg_d000 = data;
}
void wmg_state::machine_start()
{
uint8_t *cpu = memregion("maincpu")->base();
uint8_t *snd = memregion("soundcpu")->base();
m_mainbank->configure_entry(0, m_videoram);
m_mainbank->configure_entries(1, 8, &cpu[0x10000], 0x10000); // Gfx etc
m_codebank->configure_entries(0, 8, &cpu[0x1d000], 0x10000); // Code
m_soundbank->configure_entries(0, 8, &snd[0x10000], 0x1000); // Sound
save_item(NAME(m_wmg_c400));
save_item(NAME(m_wmg_d000));
save_item(NAME(m_wmg_port_select));
save_item(NAME(m_wmg_vram_bank));
}
void wmg_state::machine_reset()
{
address_space &space1 = m_maincpu->space(AS_PROGRAM);
m_wmg_c400=0xff;
m_wmg_d000=0xff;
m_wmg_port_select=0;
m_wmg_vram_bank=0;
wmg_c400_w( space1, 0, 0);
m_maincpu->reset();
}
/*************************************
*
* Input selector code
*
*************************************/
WRITE_LINE_MEMBER( wmg_state::wmg_port_select_w )
{
m_wmg_port_select = state | (m_wmg_c400 << 1);
}
CUSTOM_INPUT_MEMBER(wmg_state::wmg_mux_r)
{
const char *port = (const char *)param;
if (port[0] == '0')
{
uint8_t ports[17] = { 0,0,2,2,5,4,7,7,9,9,11,11,14,13,9,9 };
return m_keyboard[ports[m_wmg_port_select]]->read();
}
else
{
uint8_t ports[17] = { 1,1,3,3,6,6,8,8,10,10,12,12,16,15,10,10 };
return m_keyboard[ports[m_wmg_port_select]]->read();
}
}
READ8_MEMBER( wmg_state::wmg_pia_0_r )
{
/* if player presses P1 and P2 in a game, return to the menu.
Since there is no code in rom to handle this, it must be a hardware feature
which probably just resets the cpu. */
uint8_t data = m_pia[0]->read(space, offset);
if ((m_wmg_c400) && (offset == 0) && ((data & 0x30) == 0x30)) // P1 and P2 pressed
{
wmg_c400_w( space, 0, 0);
m_maincpu->reset();
}
return data;
}
/*************************************
*
* Driver Initialisation
*
*************************************/
void wmg_state::init_wmg()
{
m_blitter_config = WILLIAMS_BLITTER_SC1;
m_blitter_clip_address = 0xc000;
}
/*************************************
*
* Machine Driver
*
*************************************/
MACHINE_CONFIG_START(wmg_state::wmg)
/* basic machine hardware */
MCFG_DEVICE_ADD("maincpu", MC6809E, MASTER_CLOCK/3/4)
MCFG_DEVICE_PROGRAM_MAP(wmg_cpu1)
MCFG_DEVICE_ADD("soundcpu", M6808, SOUND_CLOCK)
MCFG_DEVICE_PROGRAM_MAP(wmg_cpu2)
MCFG_NVRAM_ADD_0FILL("nvram")
MCFG_DEVICE_ADD("bankc000", ADDRESS_MAP_BANK, 0)
MCFG_DEVICE_PROGRAM_MAP(wmg_banked_map)
MCFG_ADDRESS_MAP_BANK_ENDIANNESS(ENDIANNESS_BIG)
MCFG_ADDRESS_MAP_BANK_DATA_WIDTH(8)
MCFG_ADDRESS_MAP_BANK_ADDR_WIDTH(16)
MCFG_ADDRESS_MAP_BANK_STRIDE(0x1000)
// set a timer to go off every 32 scanlines, to toggle the VA11 line and update the screen
MCFG_TIMER_DRIVER_ADD_SCANLINE("scan_timer", williams_state, williams_va11_callback, "screen", 0, 32)
// also set a timer to go off on scanline 240
MCFG_TIMER_DRIVER_ADD_SCANLINE("240_timer", williams_state, williams_count240_callback, "screen", 0, 240)
MCFG_WATCHDOG_ADD("watchdog")
/* video hardware */
MCFG_SCREEN_ADD("screen", RASTER)
MCFG_SCREEN_VIDEO_ATTRIBUTES(VIDEO_UPDATE_SCANLINE | VIDEO_ALWAYS_UPDATE)
MCFG_SCREEN_RAW_PARAMS(MASTER_CLOCK*2/3, 512, 6, 298, 260, 7, 247)
MCFG_SCREEN_UPDATE_DRIVER(williams_state, screen_update_williams)
MCFG_VIDEO_START_OVERRIDE(williams_state,williams)
MCFG_PALETTE_ADD("palette", 256)
MCFG_PALETTE_INIT_OWNER(williams_state,williams)
/* sound hardware */
SPEAKER(config, "speaker").front_center();
MCFG_DEVICE_ADD("dac", MC1408, 0) MCFG_SOUND_ROUTE(ALL_OUTPUTS, "speaker", 0.25) // unknown DAC
MCFG_DEVICE_ADD("vref", VOLTAGE_REGULATOR, 0) MCFG_VOLTAGE_REGULATOR_OUTPUT(5.0)
MCFG_SOUND_ROUTE(0, "dac", 1.0, DAC_VREF_POS_INPUT) MCFG_SOUND_ROUTE(0, "dac", -1.0, DAC_VREF_NEG_INPUT)
/* pia */
MCFG_INPUT_MERGER_ANY_HIGH("mainirq")
MCFG_INPUT_MERGER_OUTPUT_HANDLER(INPUTLINE("maincpu", M6809_IRQ_LINE))
MCFG_INPUT_MERGER_ANY_HIGH("soundirq")
MCFG_INPUT_MERGER_OUTPUT_HANDLER(INPUTLINE("soundcpu", M6808_IRQ_LINE))
MCFG_DEVICE_ADD("pia_0", PIA6821, 0)
MCFG_PIA_READPA_HANDLER(IOPORT("IN0"))
MCFG_PIA_READPB_HANDLER(IOPORT("IN1"))
MCFG_PIA_CB2_HANDLER(WRITELINE(*this, wmg_state, wmg_port_select_w))
MCFG_DEVICE_ADD("pia_1", PIA6821, 0)
MCFG_PIA_READPA_HANDLER(IOPORT("IN2"))
MCFG_PIA_WRITEPB_HANDLER(WRITE8(*this, williams_state, williams_snd_cmd_w))
MCFG_PIA_IRQA_HANDLER(WRITELINE("mainirq", input_merger_any_high_device, in_w<0>))
MCFG_PIA_IRQB_HANDLER(WRITELINE("mainirq", input_merger_any_high_device, in_w<1>))
MCFG_DEVICE_ADD("pia_2", PIA6821, 0)
MCFG_PIA_WRITEPA_HANDLER(WRITE8("dac", dac_byte_interface, data_w))
MCFG_PIA_IRQA_HANDLER(WRITELINE("soundirq", input_merger_any_high_device, in_w<0>))
MCFG_PIA_IRQB_HANDLER(WRITELINE("soundirq", input_merger_any_high_device, in_w<1>))
MACHINE_CONFIG_END
/*************************************
*
* Roms
*
*************************************/
ROM_START( wmg )
ROM_REGION( 0x90000, "maincpu", 0 )
ROM_LOAD( "wmg.cpu", 0x10000, 0x80000, CRC(975516ec) SHA1(571aaf9bff8ebfc36448cd9394b47bcfae7d1b83) )
/* This little HACK! lets the menu boot up.
It patches a jump to some new code, which sets a few memory locations, and sets the stack pointer.
Then it jumps back to continue the main run. */
ROM_COPY( "maincpu", 0x1e0da, 0x1f800, 0x0001b )
ROM_FILL( 0x1f81b, 1, 0x7e )
ROM_FILL( 0x1f81c, 1, 0xe0 )
ROM_FILL( 0x1f81d, 1, 0xba )
ROM_FILL( 0x1e0b7, 1, 0x7e )
ROM_FILL( 0x1e0b8, 1, 0xf8 )
ROM_FILL( 0x1e0b9, 1, 0x00 )
ROM_REGION( 0x18000, "soundcpu", 0 )
ROM_LOAD( "wmg.snd", 0x10000, 0x8000, CRC(1d08990e) SHA1(7bfb29426b3876f113e6ec3bc6c2fce9d2d1eb0c) )
ROM_REGION( 0x0400, "proms", 0 )
ROM_LOAD( "decoder.4", 0x0000, 0x0200, CRC(e6631c23) SHA1(9988723269367fb44ef83f627186a1c88cf7877e) )
ROM_LOAD( "decoder.6", 0x0200, 0x0200, CRC(83faf25e) SHA1(30002643d08ed983a6701a7c4b5ee74a2f4a1adb) )
ROM_END
/*******************************************************
*
* Game Driver
*
*******************************************************/
GAME( 2001, wmg, 0, wmg, wmg, wmg_state, init_wmg, ROT0, "hack (Clay Cowgill)", "Williams Multigame", 0 )
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