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Diffstat (limited to 'src/mame/drivers/altos2.cpp')
-rw-r--r-- | src/mame/drivers/altos2.cpp | 186 |
1 files changed, 0 insertions, 186 deletions
diff --git a/src/mame/drivers/altos2.cpp b/src/mame/drivers/altos2.cpp deleted file mode 100644 index 0cf4ee4165c..00000000000 --- a/src/mame/drivers/altos2.cpp +++ /dev/null @@ -1,186 +0,0 @@ -// license:BSD-3-Clause -// copyright-holders:AJR -/*********************************************************************************************************************************** - -2017-11-03 Skeleton - -Altos II terminal. Green screen. - -Chips: Z80A, 2x Z80DART, Z80CTC, X2210D, 2x CRT9006, CRT9007, CRT9021A, 8x 6116 - -Other: Beeper. Crystals: 4.9152, 8.000, 40.000 - -Keyboard: P8035L CPU, undumped 2716 labelled "358_2758", XTAL marked "4608-300-107 KSS4C" - -************************************************************************************************************************************/ - -#include "emu.h" -#include "cpu/z80/z80.h" -#include "machine/z80daisy.h" -#include "machine/z80ctc.h" -#include "machine/z80dart.h" -#include "machine/x2212.h" -#include "sound/beep.h" -//#include "video/crt9006.h" -#include "video/crt9007.h" -//#include "video/crt9021.h" -#include "screen.h" -#include "speaker.h" - -class altos2_state : public driver_device -{ -public: - altos2_state(const machine_config &mconfig, device_type type, const char *tag) - : driver_device(mconfig, type, tag) - , m_maincpu(*this, "maincpu") - , m_novram(*this, "novram") - , m_vpac(*this, "vpac") - , m_bell(*this, "bell") - , m_p_chargen(*this, "chargen") - , m_p_videoram(*this, "videoram") - { } - - void altos2(machine_config &config); - -private: - DECLARE_READ8_MEMBER(vpac_r); - DECLARE_WRITE8_MEMBER(vpac_w); - DECLARE_WRITE8_MEMBER(video_mode_w); - - u32 screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect); - - virtual void machine_reset() override; - void io_map(address_map &map); - void mem_map(address_map &map); - - required_device<z80_device> m_maincpu; - required_device<x2210_device> m_novram; - required_device<crt9007_device> m_vpac; - required_device<beep_device> m_bell; - required_region_ptr<u8> m_p_chargen; - required_shared_ptr<u8> m_p_videoram; -}; - -void altos2_state::machine_reset() -{ - m_novram->recall(ASSERT_LINE); - m_novram->recall(CLEAR_LINE); -} - -READ8_MEMBER(altos2_state::vpac_r) -{ - return m_vpac->read(space, offset >> 1); -} - -WRITE8_MEMBER(altos2_state::vpac_w) -{ - m_vpac->write(space, offset >> 1, data); -} - -WRITE8_MEMBER(altos2_state::video_mode_w) -{ - if (BIT(data, 5)) - { - // D5 = 1 for 132-column mode - m_vpac->set_unscaled_clock(40_MHz_XTAL / 12); - m_vpac->set_character_width(6); - } - else - { - // D5 = 0 for 80-column mode - m_vpac->set_unscaled_clock(40_MHz_XTAL / 20); - m_vpac->set_character_width(10); - } - - m_bell->set_state(BIT(data, 4)); - - //logerror("Writing %02X to mode register at %s\n", data, machine().describe_context()); -} - -u32 altos2_state::screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect) -{ - return 0; -} - -void altos2_state::mem_map(address_map &map) -{ - map(0x0000, 0x3fff).rom().region("roms", 0); - map(0xc000, 0xffff).ram().share("videoram"); -} - -void altos2_state::io_map(address_map &map) -{ - map.global_mask(0xff); - map.unmap_value_high(); - map(0x00, 0x03).rw("dart1", FUNC(z80dart_device::ba_cd_r), FUNC(z80dart_device::ba_cd_w)); - map(0x04, 0x07).rw("dart2", FUNC(z80dart_device::ba_cd_r), FUNC(z80dart_device::ba_cd_w)); - map(0x08, 0x0b).rw("ctc", FUNC(z80ctc_device::read), FUNC(z80ctc_device::write)); - map(0x0c, 0x0c).w(FUNC(altos2_state::video_mode_w)); - map(0x40, 0x7f).rw(m_novram, FUNC(x2210_device::read), FUNC(x2210_device::write)); - map(0x80, 0xff).rw(FUNC(altos2_state::vpac_r), FUNC(altos2_state::vpac_w)); -} - -static INPUT_PORTS_START(altos2) -INPUT_PORTS_END - -static const z80_daisy_config daisy_chain[] = -{ - { "dart1" }, - { "dart2" }, - { "ctc" }, - { nullptr } -}; - -void altos2_state::altos2(machine_config &config) -{ - Z80(config, m_maincpu, 8_MHz_XTAL / 2); - m_maincpu->set_addrmap(AS_PROGRAM, &altos2_state::mem_map); - m_maincpu->set_addrmap(AS_IO, &altos2_state::io_map); - m_maincpu->set_daisy_config(daisy_chain); - - z80ctc_device &ctc(Z80CTC(config, "ctc", 8_MHz_XTAL / 2)); - ctc.intr_callback().set_inputline(m_maincpu, INPUT_LINE_IRQ0); - ctc.set_clk<0>(4.9152_MHz_XTAL / 4); - ctc.set_clk<1>(4.9152_MHz_XTAL / 4); - ctc.set_clk<2>(4.9152_MHz_XTAL / 4); - ctc.zc_callback<0>().set("dart1", FUNC(z80dart_device::txca_w)); - ctc.zc_callback<0>().append("dart1", FUNC(z80dart_device::rxca_w)); - ctc.zc_callback<1>().set("dart2", FUNC(z80dart_device::rxca_w)); - ctc.zc_callback<1>().append("dart2", FUNC(z80dart_device::txca_w)); - ctc.zc_callback<2>().set("dart1", FUNC(z80dart_device::rxtxcb_w)); - - z80dart_device &dart1(Z80DART(config, "dart1", 8_MHz_XTAL / 2)); - dart1.out_int_callback().set_inputline(m_maincpu, INPUT_LINE_IRQ0); - - z80dart_device &dart2(Z80DART(config, "dart2", 8_MHz_XTAL / 2)); // channel B not used for communications - dart2.out_int_callback().set_inputline(m_maincpu, INPUT_LINE_IRQ0); - dart2.out_dtrb_callback().set(m_novram, FUNC(x2210_device::store)).invert(); // FIXME: no inverter should be needed - - X2210(config, m_novram); - - screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER)); - screen.set_raw(40_MHz_XTAL / 2, 960, 0, 800, 347, 0, 325); - screen.set_screen_update(FUNC(altos2_state::screen_update)); - - CRT9007(config, m_vpac, 40_MHz_XTAL / 20); - m_vpac->set_screen("screen"); - m_vpac->set_character_width(10); - m_vpac->int_callback().set("ctc", FUNC(z80ctc_device::trg3)); - - SPEAKER(config, "mono").front_center(); - BEEP(config, m_bell, 1000).add_route(ALL_OUTPUTS, "mono", 0.50); -} - -ROM_START( altos2 ) - ROM_REGION( 0x4000, "roms", 0 ) - ROM_LOAD( "us_v1.2_15732.u32", 0x0000, 0x2000, CRC(a85f7be0) SHA1(3cfa954c916258d86f7f745d10ec2ff5e33261b3) ) - ROM_LOAD( "us_v1.2_15733.u19", 0x2000, 0x2000, CRC(45ebe88a) SHA1(33f16b382a2b365122ebf5e5f7312f8afa45ad15) ) - - ROM_REGION( 0x2000, "chargen", 0 ) - ROM_LOAD( "us_v1.1_14410.u34", 0x0000, 0x2000, CRC(0ebb78bf) SHA1(96a1f7d34ff35037cbbc93049c0e2b9c9f11f1db) ) - - ROM_REGION( 0x0800, "keyboard", 0 ) - ROM_LOAD( "358_7258", 0x0000, 0x0800, NO_DUMP ) -ROM_END - -COMP(1983, altos2, 0, 0, altos2, altos2, altos2_state, empty_init, "Altos Computer Systems", "Altos II Terminal", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_GRAPHICS) |