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Machines promoted to working

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----------------------------
TeleVideo Model 910 [R. Belmont, AJR]
This commit is contained in:
AJR 2018-01-21 11:11:48 -05:00
parent 803f511de2
commit 224cd30cba
1 changed files with 35 additions and 28 deletions
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63
src/mame/drivers/tv910.cpp
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@ -1,9 +1,8 @@
// license:BSD-3-Clause
// copyright-holders: R. Belmont
// copyright-holders:R. Belmont, AJR
/***************************************************************************
TeleVideo TV-910 / 910 Plus
Preliminary driver by R. Belmont
TeleVideo Model 910 / 910 Plus
Hardware:
6502 CPU
@ -13,10 +12,14 @@
IRQ = ACIA gated with flip-flop driven by CRTC VBlank (not wire-OR)
NMI = AY-5-3600 keyboard char present
Esc-V (with a capital V) brings up the self-test screen.
TODO:
- Attributes might not all be correct (Esc-V brings up test screen)
- DIP switches don't all appear to have the expected effects
- Keyboard hookup isn't quite right
- Reverse attribute handling on the self-test screen doesn't seem
to match the picture shown in the Operator's Manual
- Make 910 keyboard into a device since the similar Model 925 uses
a 950-compatible serial keyboard instead (with a second ACIA)
- Add printer port and remaining DIP switches
****************************************************************************/
@ -31,7 +34,7 @@
#include "screen.h"
#include "speaker.h"
#define ACIA_TAG "acia1"
#define ACIA_TAG "acia"
#define CRTC_TAG "crtc"
#define RS232_TAG "rs232"
#define KBDC_TAG "ay3600"
@ -85,7 +88,7 @@ private:
required_shared_ptr<uint8_t> m_vram;
required_region_ptr<uint8_t> m_chrrom;
required_device<ay3600_device> m_ay3600;
required_memory_region m_kbdrom;
required_region_ptr<uint8_t> m_kbdrom;
required_ioport m_kbspecial;
required_device<beep_device> m_beep;
required_ioport m_dsw1;
@ -196,10 +199,8 @@ WRITE_LINE_MEMBER(tv910_state::ay3600_data_ready_w)
{
if (state == ASSERT_LINE)
{
uint8_t *decode = m_kbdrom->base();
m_lastchar = m_ay3600->b_r();
m_transchar = decode[m_lastchar];
m_transchar = m_kbdrom[m_lastchar];
m_strobe = 1;
m_maincpu->set_input_line(M6502_NMI_LINE, ASSERT_LINE);
@ -359,23 +360,23 @@ static INPUT_PORTS_START( tv910 )
PORT_DIPSETTING( 0xf, "19200" )
PORT_DIPNAME( 0x10, 0x00, "Word Length" ) PORT_DIPLOCATION("S1:5")
PORT_DIPSETTING( 0x00, "8 Bits" )
PORT_DIPSETTING( 0x10, "7 Bits" )
PORT_DIPSETTING( 0x00, "8 data bits" )
PORT_DIPSETTING( 0x10, "7 data bits" )
PORT_DIPNAME( 0x20, 0x00, "Parity" ) PORT_DIPLOCATION("S1:6")
PORT_DIPSETTING( 0x00, "No Parity" )
PORT_DIPSETTING( 0x20, "Send Parity" )
PORT_DIPSETTING( 0x00, "No parity" )
PORT_DIPSETTING( 0x20, "Send parity" )
PORT_DIPNAME( 0x40, 0x00, "Parity Type" ) PORT_DIPLOCATION("S1:7")
PORT_DIPSETTING( 0x00, "Odd Parity" )
PORT_DIPSETTING( 0x40, "Even Parity" )
PORT_DIPSETTING( 0x00, "Odd" )
PORT_DIPSETTING( 0x40, "Even" )
PORT_DIPNAME( 0x80, 0x00, "Stop Bits" ) PORT_DIPLOCATION("S1:8")
PORT_DIPSETTING( 0x00, "1" )
PORT_DIPSETTING( 0x80, "2" )
PORT_START("DSW1")
PORT_DIPNAME( 0x01, 0x00, "CR Code" ) PORT_DIPLOCATION("S1:10") // TCHAR0
PORT_DIPNAME( 0x01, 0x01, "CR Code" ) PORT_DIPLOCATION("S1:10") // TCHAR0
PORT_DIPSETTING( 0x00, "CR only" )
PORT_DIPSETTING( 0x01, "CRLF" )
@ -394,14 +395,14 @@ static INPUT_PORTS_START( tv910 )
PORT_DIPSETTING( 0x10, "50 Hz" )
PORT_DIPNAME( 0x60, 0x00, "Cursor Type" ) PORT_DIPLOCATION("S2:4,5")
PORT_DIPSETTING( 0x00, "Blinking Block" )
PORT_DIPSETTING( 0x40, "Blinking Underline" )
PORT_DIPSETTING( 0x20, "Steady Block" )
PORT_DIPSETTING( 0x60, "Steady Underline" )
PORT_DIPSETTING( 0x00, "Blinking block" )
PORT_DIPSETTING( 0x40, "Blinking underline" )
PORT_DIPSETTING( 0x20, "Steady block" )
PORT_DIPSETTING( 0x60, "Steady underline" )
PORT_DIPNAME( 0x80, 0x00, "Conversation Mode" ) PORT_DIPLOCATION("S2:6") // F/HDX
PORT_DIPSETTING( 0x00, "Half Duplex" )
PORT_DIPSETTING( 0x80, "Full Duplex" )
PORT_DIPSETTING( 0x00, "Half duplex" )
PORT_DIPSETTING( 0x80, "Full duplex" )
PORT_DIPNAME( 0x100, 0x100, "Colors" ) PORT_DIPLOCATION("S2:7") // BOW/WOB
PORT_DIPSETTING( 0x00, "Black characters on green screen" )
@ -423,6 +424,14 @@ INPUT_PORTS_END
void tv910_state::machine_start()
{
// DCD needs to be driven somehow, or else the terminal will complain
auto *acia = subdevice<mos6551_device>(ACIA_TAG);
auto *rs232 = subdevice<rs232_port_device>(RS232_TAG);
if (rs232->get_card_device() == nullptr)
acia->write_dcd(0);
// DSR is tied to GND
acia->write_dsr(0);
}
void tv910_state::machine_reset()
@ -531,12 +540,10 @@ MACHINE_CONFIG_START(tv910_state::tv910)
MCFG_MOS6551_IRQ_HANDLER(DEVWRITELINE("mainirq", input_merger_device, in_w<1>))
MCFG_MOS6551_TXD_HANDLER(DEVWRITELINE(RS232_TAG, rs232_port_device, write_txd))
MCFG_MOS6551_RTS_HANDLER(DEVWRITELINE(RS232_TAG, rs232_port_device, write_rts))
MCFG_MOS6551_DTR_HANDLER(DEVWRITELINE(RS232_TAG, rs232_port_device, write_dtr))
MCFG_RS232_PORT_ADD(RS232_TAG, default_rs232_devices, nullptr)
MCFG_RS232_RXD_HANDLER(DEVWRITELINE(ACIA_TAG, mos6551_device, write_rxd))
MCFG_RS232_DCD_HANDLER(DEVWRITELINE(ACIA_TAG, mos6551_device, write_dcd))
MCFG_RS232_DSR_HANDLER(DEVWRITELINE(ACIA_TAG, mos6551_device, write_dsr))
MCFG_RS232_CTS_HANDLER(DEVWRITELINE(ACIA_TAG, mos6551_device, write_cts))
MCFG_SPEAKER_STANDARD_MONO("mono")
@ -557,5 +564,5 @@ ROM_START( tv910 )
ROM_END
/* Driver */
// YEAR NAME PARENT COMPAT MACHINE INPUT STATE INIT COMPANY FULLNAME FLAGS
COMP( 1981, tv910, 0, 0, tv910, tv910, tv910_state, 0, "TeleVideo", "TV910", MACHINE_NOT_WORKING )
// YEAR NAME PARENT COMPAT MACHINE INPUT STATE INIT COMPANY FULLNAME FLAGS
COMP( 1981, tv910, 0, 0, tv910, tv910, tv910_state, 0, "TeleVideo Systems", "TeleVideo Model 910", 0 )