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(MESS) Votrtnt: connected acia and rs232

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This commit is contained in:
Robbbert 2013-06-10 04:29:59 +00:00
parent e434c2ba8d
commit 2c64811116
1 changed files with 27 additions and 64 deletions
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91
src/mess/drivers/votrtnt.c
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@ -25,22 +25,17 @@
* *
* ToDo: * ToDo:
* - Votrax device needs considerable improvement in sound quality. * - Votrax device needs considerable improvement in sound quality.
* - Reconnect the ACIA when serial coms become viable in MESS. *
* *
******************************************************************************/ ******************************************************************************/
/* Core includes */ /* Core includes */
#include "emu.h" #include "emu.h"
#include "cpu/m6800/m6800.h" #include "cpu/m6800/m6800.h"
#include "votrtnt.lh"
/* Components */
#include "sound/votrax.h"
#include "machine/6850acia.h" #include "machine/6850acia.h"
#include "machine/serial.h"
/* For testing */ #include "sound/votrax.h"
#include "machine/terminal.h" #include "votrtnt.lh"
class votrtnt_state : public driver_device class votrtnt_state : public driver_device
@ -49,34 +44,14 @@ public:
votrtnt_state(const machine_config &mconfig, device_type type, const char *tag) votrtnt_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag), : driver_device(mconfig, type, tag),
m_maincpu(*this, "maincpu"), m_maincpu(*this, "maincpu"),
m_terminal(*this, TERMINAL_TAG),
//m_acia(*this, "acia_0"),
m_votrax(*this, "votrax") m_votrax(*this, "votrax")
{ } { }
required_device<cpu_device> m_maincpu; required_device<cpu_device> m_maincpu;
required_device<generic_terminal_device> m_terminal;
//required_device<> m_acia;
required_device<votrax_sc01_device> m_votrax; required_device<votrax_sc01_device> m_votrax;
DECLARE_READ8_MEMBER(votrtnt_acia_status_r);
DECLARE_READ8_MEMBER(votrtnt_acia_data_r);
DECLARE_WRITE8_MEMBER(votrtnt_kbd_put);
UINT8 m_term_data;
UINT8 m_term_status;
virtual void machine_reset(); virtual void machine_reset();
}; };
READ8_MEMBER( votrtnt_state::votrtnt_acia_status_r )
{
return m_term_status;
}
READ8_MEMBER( votrtnt_state::votrtnt_acia_data_r )
{
m_term_status = 0xe2;
return m_term_data;
}
/****************************************************************************** /******************************************************************************
Address Maps Address Maps
@ -86,10 +61,8 @@ static ADDRESS_MAP_START(6802_mem, AS_PROGRAM, 8, votrtnt_state)
ADDRESS_MAP_UNMAP_HIGH ADDRESS_MAP_UNMAP_HIGH
ADDRESS_MAP_GLOBAL_MASK(0x6fff) ADDRESS_MAP_GLOBAL_MASK(0x6fff)
AM_RANGE(0x0000, 0x03ff) AM_RAM AM_MIRROR(0xc00)/* RAM, 2114*2 (0x400 bytes) mirrored 4x */ AM_RANGE(0x0000, 0x03ff) AM_RAM AM_MIRROR(0xc00)/* RAM, 2114*2 (0x400 bytes) mirrored 4x */
//AM_RANGE(0x2000, 0x2000) AM_NOP AM_MIRROR(0xffe)//AM_DEVREADWRITE("acia_0",aciastat_r,aciactrl_w)/* 6850 ACIA */ AM_RANGE(0x2000, 0x2000) AM_MIRROR(0xffe) AM_DEVREADWRITE("acia", acia6850_device, status_read, control_write)
//AM_RANGE(0x2001, 0x2001) AM_NOP AM_MIRROR(0xffe)//AM_DEVREADWRITE("acia_0",aciadata_r,aciadata_w)/* 6850 ACIA */ AM_RANGE(0x2001, 0x2001) AM_MIRROR(0xffe) AM_DEVREADWRITE("acia", acia6850_device, data_read, data_write)
AM_RANGE(0x2000, 0x2000) AM_MIRROR(0xffe) AM_READ(votrtnt_acia_status_r) AM_WRITENOP// temp testing
AM_RANGE(0x2001, 0x2001) AM_MIRROR(0xffe) AM_READ(votrtnt_acia_data_r) AM_DEVWRITE(TERMINAL_TAG, generic_terminal_device, write) // temp testing
AM_RANGE(0x4000, 0x5fff) AM_DEVWRITE("votrax", votrax_sc01_device, write) /* low 6 bits write to 6 bit input of sc-01-a; high 2 bits are ignored (but by adding a buffer chip could be made to control the inflection bits of the sc-01-a which are normally grounded on the tnt) */ AM_RANGE(0x4000, 0x5fff) AM_DEVWRITE("votrax", votrax_sc01_device, write) /* low 6 bits write to 6 bit input of sc-01-a; high 2 bits are ignored (but by adding a buffer chip could be made to control the inflection bits of the sc-01-a which are normally grounded on the tnt) */
AM_RANGE(0x6000, 0x6fff) AM_ROM /* ROM in potted block */ AM_RANGE(0x6000, 0x6fff) AM_ROM /* ROM in potted block */
ADDRESS_MAP_END ADDRESS_MAP_END
@ -101,7 +74,7 @@ ADDRESS_MAP_END
static INPUT_PORTS_START(votrtnt) static INPUT_PORTS_START(votrtnt)
PORT_START("DSW1") /* not connected to cpu, each switch is connected directly to the output of a 4040 counter dividing the cpu m1? clock to feed the 6850 ACIA. Setting more than one switch on is a bad idea. see tnt_schematic.jpg */ PORT_START("DSW1") /* not connected to cpu, each switch is connected directly to the output of a 4040 counter dividing the cpu m1? clock to feed the 6850 ACIA. Setting more than one switch on is a bad idea. see tnt_schematic.jpg */
PORT_DIPNAME( 0xFF, 0x00, "Baud Rate" ) PORT_DIPLOCATION("SW1:1,2,3,4,5,6,7,8") PORT_DIPNAME( 0xFF, 0x80, "Baud Rate" ) PORT_DIPLOCATION("SW1:1,2,3,4,5,6,7,8")
PORT_DIPSETTING( 0x01, "75" ) PORT_DIPSETTING( 0x01, "75" )
PORT_DIPSETTING( 0x02, "150" ) PORT_DIPSETTING( 0x02, "150" )
PORT_DIPSETTING( 0x04, "300" ) PORT_DIPSETTING( 0x04, "300" )
@ -114,19 +87,27 @@ INPUT_PORTS_END
void votrtnt_state::machine_reset() void votrtnt_state::machine_reset()
{ {
m_term_data = 0;
m_term_status = 0xe2;
} }
WRITE8_MEMBER( votrtnt_state::votrtnt_kbd_put ) static ACIA6850_INTERFACE( acia_intf )
{ {
m_term_data = data; 153600,
m_term_status = 0xe3; 153600,
} DEVCB_DEVICE_LINE_MEMBER("rs232", serial_port_device, rx),
DEVCB_DEVICE_LINE_MEMBER("rs232", serial_port_device, tx),
DEVCB_DEVICE_LINE_MEMBER("rs232", rs232_port_device, cts_r),
DEVCB_DEVICE_LINE_MEMBER("rs232", rs232_port_device, rts_w),
DEVCB_NULL,
DEVCB_NULL
};
static GENERIC_TERMINAL_INTERFACE( votrtnt_terminal_intf ) static const rs232_port_interface rs232_intf =
{ {
DEVCB_DRIVER_MEMBER(votrtnt_state, votrtnt_kbd_put) DEVCB_NULL,
DEVCB_NULL,
DEVCB_NULL,
DEVCB_NULL,
DEVCB_NULL
}; };
static struct votrax_sc01_interface votrtnt_votrax_interface = static struct votrax_sc01_interface votrtnt_votrax_interface =
@ -147,14 +128,13 @@ static MACHINE_CONFIG_START( votrtnt, votrtnt_state )
//MCFG_DEFAULT_LAYOUT(layout_votrtnt) //MCFG_DEFAULT_LAYOUT(layout_votrtnt)
/* serial hardware */ /* serial hardware */
//MCFG_ACIA6850_ADD("acia_0", acia_intf) MCFG_ACIA6850_ADD("acia", acia_intf)
MCFG_RS232_PORT_ADD("rs232", rs232_intf, default_rs232_devices, "serial_terminal")
/* sound hardware */ /* sound hardware */
MCFG_SPEAKER_STANDARD_MONO("mono") MCFG_SPEAKER_STANDARD_MONO("mono")
MCFG_VOTRAX_SC01_ADD("votrax", 1700000, votrtnt_votrax_interface ) /* 1.70 MHz? needs verify */ MCFG_VOTRAX_SC01_ADD("votrax", 1700000, votrtnt_votrax_interface ) /* 1.70 MHz? needs verify */
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.00) MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.00)
MCFG_GENERIC_TERMINAL_ADD(TERMINAL_TAG, votrtnt_terminal_intf)
MACHINE_CONFIG_END MACHINE_CONFIG_END
@ -169,26 +149,9 @@ ROM_START(votrtnt)
ROM_END ROM_END
/******************************************************************************
Stuff that belongs in machine/votrtnt.c
******************************************************************************/
/*
static ACIA6850_INTERFACE( acia_intf )
{
9600, // rx clock, actually based on dipswitches
9600, // tx clock, actually based on dipswitches
DEVCB_NULL, // rx callback
DEVCB_NULL, // tx callback
DEVCB_NULL,
DEVCB_NULL,
DEVCB_NULL,
DEVCB_NULL
};*/
/****************************************************************************** /******************************************************************************
Drivers Drivers
******************************************************************************/ ******************************************************************************/
/* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS */ /* YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS */
COMP( 1980, votrtnt, 0, 0, votrtnt, votrtnt, driver_device, 0, "Votrax", "Type 'N Talk", GAME_NOT_WORKING ) COMP( 1980, votrtnt, 0, 0, votrtnt, votrtnt, driver_device, 0, "Votrax", "Type 'N Talk", GAME_NOT_WORKING )