// license:MAME
// copyright-holders:Robbbert
/***************************************************************************
Poly/Proteus (New Zealand)
10/07/2011 Skeleton driver.
http://www.cs.otago.ac.nz/homepages/andrew/poly/Poly.htm
Andrew has supplied the roms for -bios 1
It uses a 6809 for all main functions. There is a Z80 for CP/M, but all
of the roms are 6809 code.
The keyboard controller is one of those custom XR devices.
Will use the terminal keyboard instead.
With bios 1, after entering your userid and password, you get a black
screen. This is normal, because it joins to a network which isn't there.
ToDo:
- Almost Everything!
- Connect up the device ports & lines
- Find out about graphics mode and how it is selected
- Fix Keyboard so that the Enter key tells BASIC to do something
- Find out how to make 2nd teletext screen to display
- Banking
****************************************************************************/
#include "emu.h"
#include "cpu/m6809/m6809.h"
#include "cpu/z80/z80.h"
#include "machine/6821pia.h"
#include "machine/6840ptm.h"
#include "machine/6850acia.h"
#include "machine/clock.h"
#include "machine/mc6854.h"
#include "video/saa5050.h"
#include "machine/keyboard.h"
#include "sound/speaker.h"
#define KEYBOARD_TAG "keyboard"
class poly_state : public driver_device
{
public:
poly_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag),
m_maincpu(*this, "maincpu"),
m_pia0(*this, "pia0"),
m_pia1(*this, "pia1"),
m_acia(*this, "acia"),
m_ptm(*this, "ptm"),
m_speaker(*this, "speaker"),
m_videoram(*this, "videoram")
{
}
DECLARE_WRITE8_MEMBER(kbd_put);
DECLARE_READ8_MEMBER(pia1_b_in);
DECLARE_READ8_MEMBER(videoram_r);
DECLARE_WRITE_LINE_MEMBER(write_acia_clock);
DECLARE_WRITE8_MEMBER( ptm_o2_callback );
DECLARE_WRITE8_MEMBER( ptm_o3_callback );
protected:
virtual void machine_reset();
private:
required_device<cpu_device> m_maincpu;
required_device<pia6821_device> m_pia0;
required_device<pia6821_device> m_pia1;
required_device<acia6850_device> m_acia;
required_device<ptm6840_device> m_ptm;
required_device<speaker_sound_device> m_speaker;
required_shared_ptr<UINT8> m_videoram;
UINT8 m_term_data;
};
static ADDRESS_MAP_START(poly_mem, AS_PROGRAM, 8, poly_state)
ADDRESS_MAP_UNMAP_HIGH
AM_RANGE(0x0000,0x9fff) AM_RAM
AM_RANGE(0xa000,0xcfff) AM_ROM
AM_RANGE(0xd000,0xdfff) AM_RAM
AM_RANGE(0xe000,0xe003) AM_DEVREADWRITE("pia0", pia6821_device, read, write) //video control PIA 6821
AM_RANGE(0xe004,0xe004) AM_DEVREADWRITE("acia", acia6850_device, status_r, control_w)
AM_RANGE(0xe005,0xe005) AM_DEVREADWRITE("acia", acia6850_device, data_r, data_w)
//AM_RANGE(0xe006, 0xe006) // baud rate controller (0=9600,2=4800,4=2400,6=1200,8=600,A=300)
AM_RANGE(0xe00c,0xe00f) AM_DEVREADWRITE("pia1", pia6821_device, read, write) //keyboard PIA 6821
AM_RANGE(0xe020,0xe027) AM_DEVREADWRITE("ptm", ptm6840_device, read, write) //timer 6840
AM_RANGE(0xe030,0xe037) AM_DEVREADWRITE("adlc", mc6854_device, read, write) //Data Link Controller 6854
AM_RANGE(0xe040,0xe040) AM_NOP //Set protect flip-flop after 1 E-cycle
AM_RANGE(0xe050,0xe05f) AM_RAM //Dynamic Address Translater (arranges memory banks)
// AM_RANGE(0xe060,0xe060) Select Map 1
// AM_RANGE(0xe070,0xe070) Select Map 2
AM_RANGE(0xe800,0xebbf) AM_RAM AM_SHARE("videoram")
AM_RANGE(0xebc0,0xebff) AM_RAM
AM_RANGE(0xec00,0xefbf) AM_RAM // screen 2 AM_SHARE("videoram")
AM_RANGE(0xefc0,0xefff) AM_RAM
AM_RANGE(0xf000,0xffff) AM_ROM
ADDRESS_MAP_END
/* Input ports */
static INPUT_PORTS_START( poly )
INPUT_PORTS_END
void poly_state::machine_reset()
{
}
READ8_MEMBER( poly_state::pia1_b_in )
{
// return ascii key value, bit 7 is the strobe value
UINT8 data = m_term_data;
m_term_data &= 0x7f;
return data;
}
READ8_MEMBER( poly_state::videoram_r )
{
return m_videoram[offset];
}
WRITE8_MEMBER( poly_state::kbd_put )
{
m_term_data = data | 0x80;
m_pia1->cb1_w(1);
m_pia1->cb1_w(0);
}
WRITE_LINE_MEMBER( poly_state::write_acia_clock )
{
m_acia->write_txc(state);
m_acia->write_rxc(state);
}
WRITE8_MEMBER( poly_state::ptm_o2_callback )
{
m_ptm->set_c1(data);
}
WRITE8_MEMBER( poly_state::ptm_o3_callback )
{
m_speaker->level_w(data);
}
static MACHINE_CONFIG_START( poly, poly_state )
/* basic machine hardware */
MCFG_CPU_ADD("maincpu", M6809E, XTAL_12MHz / 3) // 12.0576MHz
MCFG_CPU_PROGRAM_MAP(poly_mem)
/* video hardware */
MCFG_SCREEN_ADD("screen", RASTER)
MCFG_SCREEN_REFRESH_RATE(50)
MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500))
MCFG_SCREEN_SIZE(40 * 12, 24 * 20)
MCFG_SCREEN_VISIBLE_AREA(0, 40 * 12 - 1, 0, 24 * 20 - 1)
MCFG_SCREEN_UPDATE_DEVICE("saa5050", saa5050_device, screen_update)
/* sound hardware */
MCFG_SPEAKER_STANDARD_MONO("mono")
MCFG_SOUND_ADD("speaker", SPEAKER_SOUND, 0)
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50)
/* Devices */
MCFG_DEVICE_ADD("saa5050", SAA5050, 6000000)
MCFG_SAA5050_D_CALLBACK(READ8(poly_state, videoram_r))
MCFG_SAA5050_SCREEN_SIZE(40, 24, 40)
MCFG_DEVICE_ADD("pia0", PIA6821, 0)
MCFG_PIA_IRQA_HANDLER(DEVWRITELINE("maincpu", m6809e_device, irq_line))
MCFG_PIA_IRQB_HANDLER(DEVWRITELINE("maincpu", m6809e_device, irq_line))
MCFG_DEVICE_ADD("pia1", PIA6821, 0)
MCFG_PIA_READPB_HANDLER(READ8(poly_state, pia1_b_in))
// CB1 kbd strobe
MCFG_PIA_IRQA_HANDLER(DEVWRITELINE("maincpu", m6809e_device, irq_line))
MCFG_PIA_IRQB_HANDLER(DEVWRITELINE("maincpu", m6809e_device, irq_line))
MCFG_DEVICE_ADD("ptm", PTM6840, 0)
MCFG_PTM6840_INTERNAL_CLOCK(XTAL_12MHz / 3)
MCFG_PTM6840_EXTERNAL_CLOCKS(0, 0, 0)
MCFG_PTM6840_OUT1_CB(WRITE8(poly_state, ptm_o2_callback))
MCFG_PTM6840_OUT2_CB(WRITE8(poly_state, ptm_o3_callback))
MCFG_PTM6840_IRQ_CB(INPUTLINE("maincpu", M6809_IRQ_LINE))
MCFG_DEVICE_ADD("acia", ACIA6850, 0)
//MCFG_ACIA6850_TXD_HANDLER(DEVWRITELINE("rs232", rs232_port_device, write_txd))
//MCFG_ACIA6850_RTS_HANDLER(DEVWRITELINE("rs232", rs232_port_device, write_rts))
//MCFG_DEVICE_ADD("acia_clock", CLOCK, 1)
//MCFG_CLOCK_SIGNAL_HANDLER(WRITELINE(poly_state, write_acia_clock))
MCFG_DEVICE_ADD("adlc", MC6854, 0)
MCFG_DEVICE_ADD(KEYBOARD_TAG, GENERIC_KEYBOARD, 0)
MCFG_GENERIC_KEYBOARD_CB(WRITE8(poly_state, kbd_put))
MACHINE_CONFIG_END
/* ROM definition */
ROM_START( poly1 )
ROM_REGION( 0x10000, "maincpu", 0 )
ROM_SYSTEM_BIOS(0, "bios0", "Standalone")
ROMX_LOAD( "v3bas1.bin", 0xa000, 0x1000, CRC(2c5276cb) SHA1(897cb9c2456ddb0f316a8c3b8aa56706056cc1dd), ROM_BIOS(1) )
ROMX_LOAD( "v3bas2.bin", 0xb000, 0x1000, CRC(30f99447) SHA1(a26170113a968ccd8df7db1b0f256a2198054037), ROM_BIOS(1) )
ROMX_LOAD( "v3bas3.bin", 0xc000, 0x1000, CRC(89ea5b27) SHA1(e37a61d3dd78fb40bc43c70af9714ce3f75fd895), ROM_BIOS(1) )
ROMX_LOAD( "v3bas4.bin", 0x9000, 0x1000, CRC(c16c1209) SHA1(42f3b0bce32aafab14bc0500fb13bd456730875c), ROM_BIOS(1) )
// boot rom
ROMX_LOAD( "plrt16v3e9.bin", 0xf000, 0x1000, CRC(453c10a0) SHA1(edfbc3d83710539c01093e89fe1b47dfe1e68acd), ROM_BIOS(1) )
ROM_SYSTEM_BIOS(1, "bios1", "Terminal")
// supplied by Andrew Trotman, author of Poly1 emulator (PolyROM v3.4)
ROMX_LOAD( "v2bas1.bin", 0xa000, 0x1000, CRC(f8c5adc4) SHA1(b1a16d7d996909185495b15a52afa697324e1f8d), ROM_BIOS(2) )
ROMX_LOAD( "v2bas2.bin", 0xb000, 0x1000, CRC(a2b0fa4d) SHA1(05ab723eb2e2b09325380a1a72da5ade401847d1), ROM_BIOS(2) )
ROMX_LOAD( "v2bas3.bin", 0xc000, 0x1000, CRC(04a58be5) SHA1(729fa02c76783213e40bb179e60c09d4b439ab90), ROM_BIOS(2) )
ROMX_LOAD( "v2bas4.bin", 0x9000, 0x1000, CRC(328fe790) SHA1(43dca92092b27627603d3588f91cf9eca24ed29f), ROM_BIOS(2) )
ROMX_LOAD( "slrt14_00f9.bin", 0xf000, 0x1000, CRC(6559a2ce) SHA1(7c38f449ca122342732123b56992ed0c446406c2), ROM_BIOS(2) )
ROM_END
/* Driver */
/* YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS */
COMP( 1981, poly1, 0, 0, poly, poly, driver_device, 0, "Polycorp", "Poly-1 Educational Computer", GAME_NOT_WORKING )