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funworld/4roses.cpp improvements:

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* Hooked both PIAs 6821 for I/O.
* Tied basic input lines.
* Added/fixed documentation and notes.
* Some cleanups.
This commit is contained in:
Roberto Fresca 2024-04-15 02:26:18 +02:00
parent 65b5718e0c
commit e5839a29ef
1 changed files with 59 additions and 50 deletions
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109
src/mame/funworld/4roses.cpp
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@ -29,6 +29,7 @@
1x M27C512 (4.10).
PLDs: 1x PALCE22V10H (read protected)
2x MACH210-15JC-18JI EEPLDs
Clock: 1x 16MHz Crystal.
@ -43,10 +44,15 @@
GENERAL NOTES:
- The game is based on Funworld/Tab/CMC games, but the hardware is completely different.
It has more complex improvements (encryption, MCU, banks, etc...)
It has more complex improvements (encryption, MCU, banks, etc...)
- The program ROM is encrypted.
- The color palettes are stored in a normal ROM.
- The code initializes a couple of inexistent PIAs 6821 that handle the I/O, so surely
these are emulated/simulated. However, set Rugby has both physical PIAs in the PCB.
***********************************************************************************
@ -54,7 +60,23 @@
Memory Map
----------
$0000 - $7FFF Still unknown...
$0000 - $07FF NVRAM
$0800 - $0803 PIA 6821 #0 (rugby, simulated in 4roses)
$0A00 - $0A03 PIA 6821 #1 (rugby, simulated in 4roses)
$0C00 - $0C00 AY-8910 data R
$0C01 - $0C01 AY-8910 data & address W
$0E00 - $0E00 CRTC 6845 address
$0E01 - $0E01 CRTC 6845 register
$4000 - $4FFF Video RAM (4roses).
$5000 - $5FFF Color/attr RAM (4roses).
$6000 - $6FFF Video RAM (rugby).
$7000 - $7FFF Color/attr RAM (rugby).
$8000 - $FFFF ROM Space.
@ -160,13 +182,11 @@
*** TO DO ***
- Decrypt the program ROMs.
- Fix memory map.
- Fix GFX decode.
- Fix color decode routines.
- Proper inputs.
- MCU simulation.
- Dump/decap the MCU.
- Decap/dump the MCUs.
***********************************************************************************/
@ -176,6 +196,7 @@
#include "funworld.h"
#include "cpu/m6502/m65c02.h"
#include "machine/6821pia.h"
#include "machine/nvram.h"
#include "sound/ay8910.h"
#include "video/mc6845.h"
@ -228,6 +249,7 @@ private:
void rugby_opcodes_map(address_map &map);
};
/**********************
* Read/Write Handlers *
**********************/
@ -241,6 +263,8 @@ private:
void _4roses_state::_4roses_map(address_map &map)
{
map(0x0000, 0x07ff).ram(); // .share("nvram");
map(0x0800, 0x0803).rw("pia0", FUNC(pia6821_device::read), FUNC(pia6821_device::write)); // non existent in the hardware, but initialized and operated.
map(0x0a00, 0x0a03).rw("pia1", FUNC(pia6821_device::read), FUNC(pia6821_device::write)); // non existent in the hardware, but initialized and operated.
map(0x0c00, 0x0c00).r("ay8910", FUNC(ay8910_device::data_r));
map(0x0c00, 0x0c01).w("ay8910", FUNC(ay8910_device::address_data_w));
map(0x0e00, 0x0e00).w("crtc", FUNC(mc6845_device::address_w));
@ -290,9 +314,12 @@ void _4roses_state::_4roses_opcodes_map(address_map &map)
map(0x8000, 0xffff).rom().region("maincpu", 0x8000);
}
void rugby_state::rugby_map(address_map &map)
{
map(0x0000, 0x07ff).ram(); // .share("nvram");
map(0x0800, 0x0803).rw("pia0", FUNC(pia6821_device::read), FUNC(pia6821_device::write));
map(0x0a00, 0x0a03).rw("pia1", FUNC(pia6821_device::read), FUNC(pia6821_device::write));
map(0x0c00, 0x0c00).r("ay8910", FUNC(ay8910_device::data_r));
map(0x0c00, 0x0c01).w("ay8910", FUNC(ay8910_device::address_data_w));
map(0x0e00, 0x0e00).w("crtc", FUNC(mc6845_device::address_w));
@ -394,32 +421,6 @@ static INPUT_PORTS_START( 4roses )
PORT_DIPNAME( 0x80, 0x80, DEF_STR( Unknown ) )
PORT_DIPSETTING( 0x80, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_START("SW2") /* this bank is x4 DIP switches */
PORT_DIPNAME( 0x01, 0x01, DEF_STR( Unknown ) )
PORT_DIPSETTING( 0x01, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_DIPNAME( 0x02, 0x02, DEF_STR( Unknown ) )
PORT_DIPSETTING( 0x02, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_DIPNAME( 0x04, 0x04, DEF_STR( Unknown ) )
PORT_DIPSETTING( 0x04, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_DIPNAME( 0x08, 0x08, DEF_STR( Unknown ) )
PORT_DIPSETTING( 0x08, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_DIPNAME( 0x10, 0x10, DEF_STR( Unknown ) )
PORT_DIPSETTING( 0x10, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_DIPNAME( 0x20, 0x20, DEF_STR( Unknown ) )
PORT_DIPSETTING( 0x20, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_DIPNAME( 0x40, 0x40, DEF_STR( Unknown ) )
PORT_DIPSETTING( 0x40, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_DIPNAME( 0x80, 0x80, DEF_STR( Unknown ) )
PORT_DIPSETTING( 0x80, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
INPUT_PORTS_END
@ -429,14 +430,14 @@ INPUT_PORTS_END
static const gfx_layout charlayout =
{
/* WRONG... Must be changed */
// WRONG... Must be changed
4,
8,
// 0x1000,
RGN_FRAC(1,2),
0x1000,
// RGN_FRAC(1,2),
4,
// { 0, 4, 0x8000*8, 0x8000*8+4 },
{ RGN_FRAC(0,2), RGN_FRAC(0,2) + 4, RGN_FRAC(1,2), RGN_FRAC(1,2) + 4 },
{ 0, 4, 0x8000*8, 0x8000*8+4 },
// { RGN_FRAC(0,2), RGN_FRAC(0,2) + 4, RGN_FRAC(1,2), RGN_FRAC(1,2) + 4 },
{ 3, 2, 1, 0 },
{ 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8 },
8*4*2
@ -458,36 +459,44 @@ GFXDECODE_END
void _4roses_state::_4roses(machine_config &config)
{
/* basic machine hardware */
M65C02(config, m_maincpu, MASTER_CLOCK/8); /* 2MHz, guess */
// basic machine hardware
M65C02(config, m_maincpu, MASTER_CLOCK/8); // 2MHz, guess
m_maincpu->set_addrmap(AS_PROGRAM, &_4roses_state::_4roses_map);
m_maincpu->set_addrmap(AS_OPCODES, &_4roses_state::_4roses_opcodes_map);
// NVRAM(config, "nvram", nvram_device::DEFAULT_ALL_0);
/* video hardware */
pia6821_device &pia0(PIA6821(config, "pia0"));
pia0.readpa_handler().set_ioport("IN0");
pia0.readpb_handler().set_ioport("IN1");
pia6821_device &pia1(PIA6821(config, "pia1"));
pia1.readpa_handler().set_ioport("IN2");
pia1.readpb_handler().set_ioport("SW1");
// video hardware
screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER));
screen.set_refresh_hz(60);
screen.set_vblank_time(ATTOSECONDS_IN_USEC(0));
screen.set_size((124+1)*4, (30+1)*8); /* guess. taken from funworld games */
screen.set_visarea(0*4, 96*4-1, 0*8, 29*8-1); /* guess. taken from funworld games */
screen.set_size((124+1)*4, (30+1)*8); // guess. taken from funworld games
screen.set_visarea(0*4, 96*4-1, 0*8, 29*8-1); // guess. taken from funworld games
screen.set_screen_update(FUNC(_4roses_state::screen_update_funworld));
GFXDECODE(config, m_gfxdecode, "palette", gfx_4roses);
PALETTE(config, "palette", FUNC(_4roses_state::funworld_palette), 0x1000);
mc6845_device &crtc(MC6845(config, "crtc", MASTER_CLOCK/8)); /* 2MHz, guess */
mc6845_device &crtc(MC6845(config, "crtc", MASTER_CLOCK/8)); // 2MHz, guess
crtc.set_screen("screen");
crtc.set_show_border_area(false);
crtc.set_char_width(4);
//crtc.out_vsync_callback().set_inputline(m_maincpu, INPUT_LINE_NMI);
/* sound hardware */
// sound hardware
SPEAKER(config, "mono").front_center();
AY8910(config, "ay8910", MASTER_CLOCK/8).add_route(ALL_OUTPUTS, "mono", 2.5); /* 2MHz, guess */
AY8910(config, "ay8910", MASTER_CLOCK/8).add_route(ALL_OUTPUTS, "mono", 2.5); // 2MHz, guess
}
void rugby_state::rugby(machine_config &config)
@ -504,10 +513,10 @@ void rugby_state::rugby(machine_config &config)
*************************/
ROM_START( 4roses )
ROM_REGION( 0x10000, "maincpu", 0 ) /* encrypted program ROM...*/
ROM_REGION( 0x10000, "maincpu", 0 ) // encrypted program ROM...
ROM_LOAD( "4.10.u32", 0x00000, 0x10000, CRC(e94440e9) SHA1(b2f81ba79f1f40ed35e45fd80c17eb8529ccdb4c) )
ROM_REGION( 0x0400, "mcu", 0 ) /* protected... no dump available */
ROM_REGION( 0x0400, "mcu", 0 ) // protected... no dump available
ROM_LOAD( "ep87c750ebpn_no_dump.u41", 0x0000, 0x0400, NO_DUMP )
ROM_REGION( 0x80000, "gfx1", 0 )
@ -522,10 +531,10 @@ ROM_START( 4roses )
ROM_END
ROM_START( 4rosesa )
ROM_REGION( 0x10000, "maincpu", 0 ) /* encrypted program ROM...*/
ROM_REGION( 0x10000, "maincpu", 0 ) // encrypted program ROM...
ROM_LOAD( "4.u15", 0x00000, 0x10000, CRC(66bb5b67) SHA1(438371c3918f0a285cb19caa650739df9fb24800) )
ROM_REGION( 0x0400, "mcu", 0 ) /* protected... no dump available */
ROM_REGION( 0x0400, "mcu", 0 ) // protected... no dump available
ROM_LOAD( "ep87c750ebpn_no_dump.u41", 0x0000, 0x0400, NO_DUMP )
ROM_REGION( 0x80000, "gfx1", 0 )
@ -549,10 +558,10 @@ no cpu... cpu seem a 44 plcc chip with name scratched off...
pcb is almost the same as "Four Roses"
*/
ROM_START( rugby )
ROM_REGION( 0x10000, "maincpu", 0 ) /* encrypted program ROM...*/
ROM_REGION( 0x10000, "maincpu", 0 ) // encrypted program ROM...
ROM_LOAD( "rugby1.u15", 0x00000, 0x10000, CRC(6ac45fa7) SHA1(dba936d236d57172e56143a9858e5052009e4346) )
ROM_REGION( 0x0400, "mcu", 0 ) /* protected... no dump available */
ROM_REGION( 0x0400, "mcu", 0 ) // protected... no dump available
ROM_LOAD( "ep87c750ebpn_no_dump.u41", 0x0000, 0x0400, NO_DUMP )
ROM_REGION( 0x80000, "gfx1", 0 )