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Diffstat (limited to 'src/mame/drivers/ti931.cpp')
-rw-r--r-- | src/mame/drivers/ti931.cpp | 144 |
1 files changed, 0 insertions, 144 deletions
diff --git a/src/mame/drivers/ti931.cpp b/src/mame/drivers/ti931.cpp deleted file mode 100644 index 9cec2549a9b..00000000000 --- a/src/mame/drivers/ti931.cpp +++ /dev/null @@ -1,144 +0,0 @@ -// license:BSD-3-Clause -// copyright-holders:AJR -/******************************************************************************* - - Skeleton driver for TI Model 931 RS-232/fiber-optic video display terminal. - -*******************************************************************************/ - -#include "emu.h" -#include "cpu/z80/z80.h" -//#include "bus/rs232/rs232.h" -#include "machine/nvram.h" -#include "machine/z80ctc.h" -#include "machine/z80dart.h" -#include "video/scn2674.h" -#include "screen.h" - -class ti931_state : public driver_device -{ -public: - ti931_state(const machine_config &mconfig, device_type type, const char *tag) - : driver_device(mconfig, type, tag) - , m_maincpu(*this, "maincpu") - , m_pvtc(*this, "pvtc") - , m_chargen(*this, "chargen") - { - } - - void ti931(machine_config &config); - -private: - SCN2672_DRAW_CHARACTER_MEMBER(draw_character); - - void mem_map(address_map &map); - void io_map(address_map &map); - void char_map(address_map &map); - void attr_map(address_map &map); - - required_device<z80_device> m_maincpu; - required_device<scn2672_device> m_pvtc; - required_region_ptr<u8> m_chargen; -}; - -SCN2672_DRAW_CHARACTER_MEMBER(ti931_state::draw_character) -{ - u16 dots = m_chargen[(charcode & 0x7f) << 4 | linecount]; - const bool half_shift = BIT(dots, 7); - dots = (dots & 0x7f) << 1; - - // TODO: attributes - for (int i = 0; i < 9; i++) - { - if (!half_shift) - dots <<= 1; - bitmap.pix32(y, x++) = BIT(dots, 8) ? rgb_t::white() : rgb_t::black(); - if (half_shift) - dots <<= 1; - bitmap.pix32(y, x++) = BIT(dots, 8) ? rgb_t::white() : rgb_t::black(); - } -} - -void ti931_state::mem_map(address_map &map) -{ - map(0x0000, 0x7fff).rom().region("program", 0); - map(0x8000, 0x87ff).ram().share("charram"); - map(0x8800, 0x8fff).ram().share("attrram"); - map(0x9000, 0x97ff).ram().share("nvram"); - map(0x9800, 0x9fff).ram(); // also NVRAM? -} - -void ti931_state::io_map(address_map &map) -{ - map.global_mask(0xff); - map(0x00, 0x03).rw("ctc", FUNC(z80ctc_device::read), FUNC(z80ctc_device::write)); - map(0x08, 0x0b).rw("dart", FUNC(z80dart_device::cd_ba_r), FUNC(z80dart_device::cd_ba_w)); - map(0x10, 0x17).rw(m_pvtc, FUNC(scn2672_device::read), FUNC(scn2672_device::write)); -} - -void ti931_state::char_map(address_map &map) -{ - map(0x0000, 0x07ff).ram().share("charram"); // HM6116LP-3 -} - -void ti931_state::attr_map(address_map &map) -{ - map(0x0000, 0x07ff).ram().share("attrram"); // HM6116LP-3 -} - -static INPUT_PORTS_START(ti931) -INPUT_PORTS_END - -static const z80_daisy_config daisy_chain[] = -{ - { "dart" }, - { nullptr } -}; - -void ti931_state::ti931(machine_config &config) -{ - Z80(config, m_maincpu, 22.1184_MHz_XTAL / 6); // MK3880N-4 - m_maincpu->set_addrmap(AS_PROGRAM, &ti931_state::mem_map); - m_maincpu->set_addrmap(AS_IO, &ti931_state::io_map); - m_maincpu->set_daisy_config(daisy_chain); - - NVRAM(config, "nvram", nvram_device::DEFAULT_ALL_0); // HM6116LP-3 or TC5517APL + battery - - z80ctc_device &ctc(Z80CTC(config, "ctc", 22.1184_MHz_XTAL / 6)); // Z8340APS - ctc.set_clk<0>(22.1184_MHz_XTAL / 12); - ctc.set_clk<1>(22.1184_MHz_XTAL / 12); - ctc.set_clk<2>(22.1184_MHz_XTAL / 12); // possibly different from the other two - ctc.zc_callback<0>().set("dart", FUNC(z80dart_device::rxtxcb_w)); - ctc.zc_callback<1>().set("dart", FUNC(z80dart_device::rxca_w)); - ctc.zc_callback<1>().append("dart", FUNC(z80dart_device::txca_w)); - // No CTC interrupts - - z80dart_device &dart(Z80DART(config, "dart", 22.1184_MHz_XTAL / 6)); // Z8370APS - dart.out_int_callback().set_inputline(m_maincpu, INPUT_LINE_IRQ0); - - screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER)); - screen.set_raw(22.1184_MHz_XTAL * 2, 954 * 2, 0, 720 * 2, 389, 0, 350); - screen.set_screen_update("pvtc", FUNC(scn2672_device::screen_update)); - - SCN2672(config, m_pvtc, 22.1184_MHz_XTAL / 9); // SCN2672B (with SCB2677B) - m_pvtc->set_screen("screen"); - m_pvtc->set_character_width(9 * 2); - m_pvtc->set_addrmap(0, &ti931_state::char_map); - m_pvtc->set_addrmap(1, &ti931_state::attr_map); - m_pvtc->set_display_callback(FUNC(ti931_state::draw_character)); - m_pvtc->intr_callback().set_inputline(m_maincpu, INPUT_LINE_NMI); -} - -ROM_START(ti931) - ROM_REGION(0x8000, "program", ROMREGION_ERASEFF) - ROM_LOAD("2229208-0003_xu9.bin", 0x0000, 0x2000, CRC(a3c43008) SHA1(4bcce64487ed2b72cc8bc898c1c85291d9b766ab)) - ROM_LOAD("2229209-0003_xu7.bin", 0x2000, 0x2000, CRC(49481614) SHA1(b69b0b1f27f7e8910dbf501c00098b816e8920d7)) - ROM_LOAD("2229221-0003_xu5.bin", 0x4000, 0x2000, CRC(30f28d08) SHA1(81709b7d90899f5d9ea66026b2cf6add698e17c1)) - // XU3 socket is unpopulated - - ROM_REGION(0x0800, "chargen", 0) - ROM_LOAD("2229199-2_xu1.bin", 0x0000, 0x0800, CRC(f76bb2bb) SHA1(57ec0392a2b5798eef43f0408347402c2941cee1)) // 01/29/85 CTE -ROM_END - -COMP(1983, ti931, 0, 0, ti931, ti931, ti931_state, empty_init, "Texas Instruments", "Model 931 Video Display Terminal", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_GRAPHICS | MACHINE_NO_SOUND) - |