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---------------------------------- ADM-31 Data Display Terminal [Bitsavers]
This commit is contained in:
AJR
parent
19f7c33663
commit
5e969d8d97
@ -3711,6 +3711,7 @@ files {
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MAME_DIR .. "src/mame/drivers/acd.cpp",
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MAME_DIR .. "src/mame/drivers/aceex.cpp",
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MAME_DIR .. "src/mame/drivers/adm23.cpp",
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MAME_DIR .. "src/mame/drivers/adm31.cpp",
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MAME_DIR .. "src/mame/drivers/akaiax80.cpp",
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MAME_DIR .. "src/mame/drivers/alcat7100.cpp",
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MAME_DIR .. "src/mame/drivers/alesis_qs.cpp",
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@ -249,6 +249,7 @@ const double XTAL::known_xtals[] = {
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18'720'000, /* 18.72_MHz_XTAL Nokia MikroMikko 1 */
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18'869'600, /* 18.8696_MHz_XTAL Memorex 2178 */
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19'339'600, /* 19.3396_MHz_XTAL TeleVideo TVI-955 80-column display clock */
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19'584'000, /* 19.584_MHz_XTAL ADM-42 */
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19'600'000, /* 19.6_MHz_XTAL Universal Mr. Do - Model 8021 PCB */
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19'602'000, /* 19.602_MHz_XTAL Ampex 210+ 80-column display clock */
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19'660'800, /* 19.6608_MHz_XTAL Euro League (bootleg), labeled as "UKI 19.6608 20PF" */
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145
src/mame/drivers/adm31.cpp
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145
src/mame/drivers/adm31.cpp
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@ -0,0 +1,145 @@
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// license:BSD-3-Clause
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// copyright-holders:AJR
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/****************************************************************************
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Skeleton driver for ADM-31 terminal.
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The ADM-31 and ADM-42 Data Display Terminals were Lear Siegler, Inc.'s
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first microprocessor-based video terminals, introduced in 1978 as the
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respective successors to their earlier ADM-1A and ADM-2 "smart"
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terminals. The original ADM-31 model was apparently rebranded in 1980
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as the ADM-31 Intermediate Terminal, and the ADM-32 was released a few
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months later.
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While the ADM-31 and ADM-32 only support 2 pages of display memory, the
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ADM-42 could be upgraded to 8. Enhancements over the ADM-31 offered by
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both the ADM-42 and ADM-32 include a status line, a larger monitor and
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a detachable keyboard. Several other expansion options were offered for
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the ADM-42, including synchronous serial and parallel printer ports.
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****************************************************************************/
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#include "emu.h"
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//#include "bus/rs232/rs232.h"
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#include "cpu/m6800/m6800.h"
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#include "machine/com8116.h"
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#include "machine/input_merger.h"
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#include "machine/6821pia.h"
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#include "machine/6850acia.h"
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#include "video/tms9927.h"
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#include "screen.h"
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class adm31_state : public driver_device
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{
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public:
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adm31_state(const machine_config &mconfig, device_type type, const char *tag)
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: driver_device(mconfig, type, tag)
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, m_maincpu(*this, "maincpu")
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, m_acia(*this, "acia%u", 1U)
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, m_vtac(*this, "vtac")
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, m_chargen(*this, "chargen")
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{
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}
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void adm31(machine_config &mconfig);
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protected:
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virtual void machine_start() override;
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private:
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u32 screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
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void mem_map(address_map &map);
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required_device<cpu_device> m_maincpu;
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required_device_array<acia6850_device, 2> m_acia;
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required_device<crt5027_device> m_vtac;
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required_region_ptr<u8> m_chargen;
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};
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void adm31_state::machine_start()
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{
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}
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u32 adm31_state::screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect)
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{
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return 0;
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}
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void adm31_state::mem_map(address_map &map)
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{
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map(0x0000, 0x03ff).ram();
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map(0x7000, 0x7000).nopw();
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map(0x7800, 0x7803).rw("pia", FUNC(pia6821_device::read), FUNC(pia6821_device::write));
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map(0x7900, 0x7900).portr("7900");
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map(0x7a00, 0x7a01).rw(m_acia[0], FUNC(acia6850_device::read), FUNC(acia6850_device::write));
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map(0x7c00, 0x7c01).rw(m_acia[1], FUNC(acia6850_device::read), FUNC(acia6850_device::write));
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map(0x7d00, 0x7d00).portr("7D00");
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map(0x7e00, 0x7e00).portr("7E00");
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map(0x7f00, 0x7f0f).rw(m_vtac, FUNC(crt5027_device::read), FUNC(crt5027_device::write));
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map(0x8000, 0x8fff).ram();
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map(0xe000, 0xffff).rom().region("program", 0);
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}
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static INPUT_PORTS_START(adm31)
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PORT_START("7900")
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PORT_BIT(0xff, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_START("7D00")
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PORT_BIT(0xff, IP_ACTIVE_LOW, IPT_UNKNOWN)
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PORT_START("7E00")
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PORT_DIPNAME(0x02, 0x02, "Refresh Rate")
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PORT_DIPSETTING(0x00, "50 Hz")
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PORT_DIPSETTING(0x02, "60 Hz")
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PORT_BIT(0xfd, IP_ACTIVE_LOW, IPT_UNKNOWN)
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INPUT_PORTS_END
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void adm31_state::adm31(machine_config &config)
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{
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M6800(config, m_maincpu, 19.584_MHz_XTAL / 20);
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m_maincpu->set_addrmap(AS_PROGRAM, &adm31_state::mem_map);
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INPUT_MERGER_ANY_HIGH(config, "mainirq").output_handler().set_inputline(m_maincpu, M6800_IRQ_LINE);
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PIA6821(config, "pia");
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ACIA6850(config, m_acia[0]);
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m_acia[0]->irq_handler().set("mainirq", FUNC(input_merger_device::in_w<0>));
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ACIA6850(config, m_acia[1]);
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m_acia[0]->irq_handler().set("mainirq", FUNC(input_merger_device::in_w<1>));
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com8116_device &brg(COM8116(config, "brg", 5.0688_MHz_XTAL));
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brg.fr_handler().set(m_acia[0], FUNC(acia6850_device::write_rxc));
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brg.fr_handler().append(m_acia[0], FUNC(acia6850_device::write_txc));
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brg.ft_handler().set(m_acia[1], FUNC(acia6850_device::write_rxc));
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brg.ft_handler().append(m_acia[1], FUNC(acia6850_device::write_txc));
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screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER));
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screen.set_raw(19.584_MHz_XTAL, 1020, 0, 800, 320, 0, 300);
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screen.set_screen_update(FUNC(adm31_state::screen_update));
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CRT5027(config, m_vtac, 19.584_MHz_XTAL / 10);
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m_vtac->set_screen("screen");
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m_vtac->set_char_width(10);
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}
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ROM_START(adm31)
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ROM_REGION(0x2000, "program", 0)
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ROM_LOAD("adm-31-u62.bin", 0x0000, 0x0800, CRC(57e557a5) SHA1(cb3021ab570c279cbaa673b5de8fa1ca9eb48188))
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ROM_LOAD("adm-31-u63.bin", 0x0800, 0x0800, CRC(1268a59c) SHA1(f0cd8562e0d5faebf84d8decaa848ff28f2ac637))
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ROM_LOAD("adm-31-u64.bin", 0x1000, 0x0800, CRC(8939fa00) SHA1(00f6a8a49e51a9501cd9d1e2aae366fb070a5a1d))
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ROM_LOAD("adm-31-u65.bin", 0x1800, 0x0800, CRC(53e4e2f1) SHA1(bf30241815c790de3354e1acfe84e760c889cbb1))
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ROM_REGION(0x0800, "chargen", 0)
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ROM_LOAD("chargen.bin", 0x0000, 0x0800, NO_DUMP)
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ROM_END
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COMP(1978, adm31, 0, 0, adm31, adm31, adm31_state, empty_init, "Lear Siegler", "ADM-31 Data Display Terminal", MACHINE_IS_SKELETON)
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@ -907,6 +907,9 @@ adam // Coleco Adam
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@source:adm23.cpp
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adm23 //
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@source:adm31.cpp
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adm31 //
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@source:adp.cpp
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fashiong // (c) 1997
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fashiong2 // (c) 1997
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@ -21,6 +21,7 @@ acrnsys.cpp
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acvirus.cpp
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adam.cpp
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adm23.cpp
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adm31.cpp
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advision.cpp
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agat.cpp
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aim65.cpp
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