diff options
Diffstat (limited to 'src/mame/drivers/tv950.cpp')
-rw-r--r-- | src/mame/drivers/tv950.cpp | 365 |
1 files changed, 0 insertions, 365 deletions
diff --git a/src/mame/drivers/tv950.cpp b/src/mame/drivers/tv950.cpp deleted file mode 100644 index 50380a53fbe..00000000000 --- a/src/mame/drivers/tv950.cpp +++ /dev/null @@ -1,365 +0,0 @@ -// license:BSD-3-Clause -// copyright-holders:R. Belmont, Robbbert -/*************************************************************************** - - 2013-09-10 Skeleton driver for Televideo TV950 - 2016-07-30 Preliminary not-so-skeleton driver - - TODO: - - VIA T2 counter mode emulation - - CRTC reset and drawing - - Bidirectional communications mode - - Hardware: - 6502A CPU - 6545 CRTC - 6522A VIA, wired to count HSYNCs and to enable the 6502 to pull RESET on the CRTC - 3x 6551 ACIA 1 for the keyboard, 1 for the modem port, 1 for the printer port - - VIA hookup (see schematics): - PA3 = beep? - PA5 = inverse video - PA6 = IRQ in - PA7 = force blank - PB6 = Hblank in - PB7 = out speaker - CA1 = reset CRTC in - CA2 = reset CRTC out - CB2 = blink timer - - IRQ = ACIAs (all 3 ORed together) - NMI = 6522 VIA's IRQ line - - http://www.bitsavers.org/pdf/televideo/950/Model_950_Terminal_Theory_of_Operation_26Jan1981.pdf - http://www.bitsavers.org/pdf/televideo/950/2002100_Model_950_Maintenance_Manual_Nov1983.pdf - http://www.bitsavers.org/pdf/televideo/950/B300002-001_Model_950_Operators_Manual_Feb81.pdf - -****************************************************************************/ - -#include "emu.h" -#include "bus/rs232/rs232.h" -#include "cpu/m6502/m6502.h" -#include "machine/input_merger.h" -#include "machine/6522via.h" -#include "machine/mos6551.h" -#include "machine/tv950kb.h" -#include "video/mc6845.h" -#include "screen.h" - -#define MASTER_CLOCK XTAL(23'814'000) - -class tv950_state : public driver_device -{ -public: - tv950_state(const machine_config &mconfig, device_type type, const char *tag) - : driver_device(mconfig, type, tag) - , m_maincpu(*this, "maincpu") - , m_via(*this, "via") - , m_crtc(*this, "crtc") - , m_uart(*this, "a%uuart", 49U) - , m_keyboard(*this, "keyboard") - , m_vram(*this, "vram") - , m_gfx(*this, "graphics") - , m_dsw(*this, "DSW%u", 0U) - { } - - void tv950(machine_config &config); - -protected: - virtual void machine_start() override; - virtual void machine_reset() override; - -private: - DECLARE_WRITE8_MEMBER(via_a_w); - DECLARE_WRITE8_MEMBER(via_b_w); - DECLARE_READ8_MEMBER(via_b_r); - DECLARE_WRITE_LINE_MEMBER(crtc_vs_w); - MC6845_UPDATE_ROW(crtc_update_row); - MC6845_ON_UPDATE_ADDR_CHANGED(crtc_update_addr); - - DECLARE_WRITE8_MEMBER(row_addr_w); - DECLARE_WRITE_LINE_MEMBER(via_crtc_reset_w); - - void tv950_mem(address_map &map); - - uint8_t m_via_row; - uint8_t m_attr_row; - uint8_t m_attr_screen; - - required_device<m6502_device> m_maincpu; - required_device<via6522_device> m_via; - required_device<r6545_1_device> m_crtc; - required_device_array<mos6551_device, 3> m_uart; - required_device<tv950kb_device> m_keyboard; - required_shared_ptr<uint8_t> m_vram; - required_region_ptr<uint16_t> m_gfx; - required_ioport_array<4> m_dsw; - - int m_row_addr; - int m_row; -}; - -void tv950_state::machine_start() -{ - m_uart[0]->write_dcd(0); - m_uart[0]->write_dsr(0); - m_uart[2]->write_cts(0); -} - -void tv950_state::tv950_mem(address_map &map) -{ - map.unmap_value_high(); - map(0x0000, 0x07ff).ram(); - map(0x2000, 0x3fff).ram().share("vram"); // VRAM - map(0x8100, 0x8100).rw(m_crtc, FUNC(r6545_1_device::status_r), FUNC(r6545_1_device::address_w)); - map(0x8101, 0x8101).rw(m_crtc, FUNC(r6545_1_device::register_r), FUNC(r6545_1_device::register_w)); - map(0x9000, 0x9000).w(FUNC(tv950_state::row_addr_w)); - map(0x9300, 0x9303).rw(m_uart[0], FUNC(mos6551_device::read), FUNC(mos6551_device::write)); // CS0 = AB9 - map(0x9500, 0x9503).rw(m_uart[2], FUNC(mos6551_device::read), FUNC(mos6551_device::write)); // CS0 = AB10 - map(0x9900, 0x9903).rw(m_uart[1], FUNC(mos6551_device::read), FUNC(mos6551_device::write)); // CS0 = AB11 - map(0xb100, 0xb10f).m(m_via, FUNC(via6522_device::map)); - map(0xe000, 0xffff).rom().region("maincpu", 0); -} - - -/* Input ports */ -static INPUT_PORTS_START( tv950 ) - PORT_START("DSW0") - PORT_DIPNAME( 0x01, 0x00, "S01") - PORT_DIPSETTING( 0x00, DEF_STR( On )) - PORT_DIPSETTING( 0x01, DEF_STR( Off )) - PORT_DIPNAME( 0x02, 0x00, "S02") - PORT_DIPSETTING( 0x00, DEF_STR( On )) - PORT_DIPSETTING( 0x02, DEF_STR( Off )) - PORT_DIPNAME( 0x04, 0x00, "S03") - PORT_DIPSETTING( 0x00, DEF_STR( On )) - PORT_DIPSETTING( 0x04, DEF_STR( Off )) - PORT_DIPNAME( 0x08, 0x00, "S04") - PORT_DIPSETTING( 0x00, DEF_STR( On )) - PORT_DIPSETTING( 0x08, DEF_STR( Off )) - PORT_DIPNAME( 0x10, 0x00, "S05") - PORT_DIPSETTING( 0x00, DEF_STR( On )) - PORT_DIPSETTING( 0x10, DEF_STR( Off )) - PORT_DIPNAME( 0x20, 0x20, "S06") - PORT_DIPSETTING( 0x00, DEF_STR( On )) - PORT_DIPSETTING( 0x20, DEF_STR( Off )) - PORT_BIT( 0xc0, IP_ACTIVE_LOW, IPT_UNUSED ) - - PORT_START("DSW1") - PORT_DIPNAME( 0x01, 0x00, "S07") - PORT_DIPSETTING( 0x00, DEF_STR( On )) - PORT_DIPSETTING( 0x01, DEF_STR( Off )) - PORT_DIPNAME( 0x02, 0x00, "S08") - PORT_DIPSETTING( 0x00, DEF_STR( On )) - PORT_DIPSETTING( 0x02, DEF_STR( Off )) - PORT_DIPNAME( 0x04, 0x00, "S09") - PORT_DIPSETTING( 0x00, DEF_STR( On )) - PORT_DIPSETTING( 0x04, DEF_STR( Off )) - PORT_DIPNAME( 0x08, 0x00, "S10") - PORT_DIPSETTING( 0x00, DEF_STR( On )) - PORT_DIPSETTING( 0x08, DEF_STR( Off )) - PORT_DIPNAME( 0x10, 0x00, "S11") - PORT_DIPSETTING( 0x00, DEF_STR( On )) - PORT_DIPSETTING( 0x10, DEF_STR( Off )) - PORT_DIPNAME( 0x20, 0x20, "S12") - PORT_DIPSETTING( 0x00, DEF_STR( On )) - PORT_DIPSETTING( 0x20, DEF_STR( Off )) - PORT_BIT( 0xc0, IP_ACTIVE_LOW, IPT_UNUSED ) - - PORT_START("DSW2") - PORT_DIPNAME( 0x01, 0x00, "S13") - PORT_DIPSETTING( 0x00, DEF_STR( On )) - PORT_DIPSETTING( 0x01, DEF_STR( Off )) - PORT_DIPNAME( 0x02, 0x00, "S14") - PORT_DIPSETTING( 0x00, DEF_STR( On )) - PORT_DIPSETTING( 0x02, DEF_STR( Off )) - PORT_DIPNAME( 0x04, 0x00, "S15") - PORT_DIPSETTING( 0x00, DEF_STR( On )) - PORT_DIPSETTING( 0x04, DEF_STR( Off )) - PORT_DIPNAME( 0x08, 0x00, "S16") - PORT_DIPSETTING( 0x00, DEF_STR( On )) - PORT_DIPSETTING( 0x08, DEF_STR( Off )) - PORT_DIPNAME( 0x10, 0x00, "S17") - PORT_DIPSETTING( 0x00, DEF_STR( On )) - PORT_DIPSETTING( 0x10, DEF_STR( Off )) - PORT_DIPNAME( 0x20, 0x20, "S18") - PORT_DIPSETTING( 0x00, DEF_STR( On )) - PORT_DIPSETTING( 0x20, DEF_STR( Off )) - PORT_BIT( 0xc0, IP_ACTIVE_LOW, IPT_UNUSED ) - - PORT_START("DSW3") - PORT_DIPNAME( 0x01, 0x00, "S19") - PORT_DIPSETTING( 0x00, DEF_STR( On )) - PORT_DIPSETTING( 0x01, DEF_STR( Off )) - PORT_DIPNAME( 0x02, 0x00, "S20") - PORT_DIPSETTING( 0x00, DEF_STR( On )) - PORT_DIPSETTING( 0x02, DEF_STR( Off )) - PORT_BIT( 0xfc, IP_ACTIVE_LOW, IPT_UNUSED ) -INPUT_PORTS_END - - -void tv950_state::machine_reset() -{ - m_row = 0; - m_via_row = 0; - m_attr_row = 0; - m_attr_screen = 0; -} - -WRITE_LINE_MEMBER(tv950_state::crtc_vs_w) -{ - m_attr_screen = 0; -} - -WRITE_LINE_MEMBER(tv950_state::via_crtc_reset_w) -{ - //printf("via_crtc_reset_w: %d\n", state); - m_via->write_ca1(state); - - if (!state) - { - //m_crtc->device_reset(); - } -} - -WRITE8_MEMBER(tv950_state::row_addr_w) -{ - m_row_addr = data; -} - -WRITE8_MEMBER(tv950_state::via_a_w) -{ - m_via_row = ~data & 15; - // PA4, 5, 7 to do -} - -WRITE8_MEMBER(tv950_state::via_b_w) -{ - // bit 3 of m_via_row must be active as well? - m_keyboard->rx_w(!BIT(data, 7)); -} - -READ8_MEMBER(tv950_state::via_b_r) -{ - uint8_t data = 0xff; - for (int n = 0; n < 4; n++) - if (BIT(m_via_row, n)) - data &= m_dsw[n]->read(); - return data; -} - -MC6845_ON_UPDATE_ADDR_CHANGED( tv950_state::crtc_update_addr ) -{ -} - -MC6845_UPDATE_ROW( tv950_state::crtc_update_row ) -{ - if (ra) - m_attr_row = m_attr_screen; - else - m_attr_screen = m_attr_row; - - uint32_t *p = &bitmap.pix32(m_row); - rgb_t fg(255,255,255,255); - rgb_t bg(0,0,0,0); - - for(uint8_t x = 0; x < x_count; x++) - { - uint8_t chr = m_vram[ma + x]; - if ((chr & 0x90)==0x90) - m_attr_row = chr & 15; - uint16_t data = m_gfx[chr * 16 + (m_row % 10)]; - if (x == cursor_x) - data ^= 0xff; - // apply attributes... - - for (uint8_t i = 0; i < 14; i++) - *p++ = BIT( data, 13-i ) ? fg : bg; - } - m_row = (m_row + 1) % 250; -} - -void tv950_state::tv950(machine_config &config) -{ - /* basic machine hardware */ - M6502(config, m_maincpu, MASTER_CLOCK/14); - m_maincpu->set_addrmap(AS_PROGRAM, &tv950_state::tv950_mem); - - input_merger_device &mainirq(INPUT_MERGER_ANY_HIGH(config, "mainirq")); // open collector - mainirq.output_handler().set_inputline(m_maincpu, m6502_device::IRQ_LINE); - mainirq.output_handler().append(m_via, FUNC(via6522_device::write_pa6)).invert(); - - screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER)); - screen.set_raw(MASTER_CLOCK, 1200, 0, 1120, 370, 0, 250); // not real values - screen.set_screen_update("crtc", FUNC(r6545_1_device::screen_update)); - - // there are many 6845 CRTC submodels, the Theory of Operation manual references the Rockwell R6545-1 specificially. - R6545_1(config, m_crtc, MASTER_CLOCK/14); - m_crtc->set_screen("screen"); - m_crtc->set_show_border_area(false); - m_crtc->set_char_width(14); - m_crtc->set_update_row_callback(FUNC(tv950_state::crtc_update_row)); - m_crtc->set_on_update_addr_change_callback(FUNC(tv950_state::crtc_update_addr)); - m_crtc->out_hsync_callback().set(m_via, FUNC(via6522_device::write_pb6)).invert(); - m_crtc->out_vsync_callback().set(FUNC(tv950_state::crtc_vs_w)); - m_crtc->set_screen(nullptr); - - VIA6522(config, m_via, MASTER_CLOCK/14); - //m_via->irq_handler().set_inputline(m_maincpu, M6502_NMI_LINE); - m_via->writepa_handler().set(FUNC(tv950_state::via_a_w)); - m_via->writepb_handler().set(FUNC(tv950_state::via_b_w)); - m_via->readpb_handler().set(FUNC(tv950_state::via_b_r)); - m_via->ca2_handler().set(FUNC(tv950_state::via_crtc_reset_w)); - //m_via->cb2_handler().set(FUNC(tv950_state::via_blink_rate_w)); - - MOS6551(config, m_uart[0], MASTER_CLOCK/14).set_xtal(MASTER_CLOCK/13); // for keyboard - m_uart[0]->irq_handler().set("mainirq", FUNC(input_merger_device::in_w<0>)); - - MOS6551(config, m_uart[1], MASTER_CLOCK/14).set_xtal(MASTER_CLOCK/13); // for main port - m_uart[1]->irq_handler().set("mainirq", FUNC(input_merger_device::in_w<1>)); - m_uart[1]->dtr_handler().set("p3", FUNC(rs232_port_device::write_dtr)); - m_uart[1]->rts_handler().set("p3", FUNC(rs232_port_device::write_rts)); - m_uart[1]->txd_handler().set("p3", FUNC(rs232_port_device::write_txd)); - - MOS6551(config, m_uart[2], MASTER_CLOCK/14).set_xtal(MASTER_CLOCK/13); // for printer port - m_uart[2]->irq_handler().set("mainirq", FUNC(input_merger_device::in_w<2>)); - m_uart[2]->txd_handler().set("p4", FUNC(rs232_port_device::write_txd)); // to pin 3 (RXD) - m_uart[2]->rts_handler().set("p4", FUNC(rs232_port_device::write_rts)); // to pin 5 (CTS) - m_uart[2]->dtr_handler().set("p4", FUNC(rs232_port_device::write_dtr)); // to pin 6 (DSR) - - TV950_KEYBOARD(config, m_keyboard); - m_keyboard->tx_cb().set(m_uart[0], FUNC(mos6551_device::write_rxd)); - - rs232_port_device &p3(RS232_PORT(config, "p3", default_rs232_devices, nullptr)); // main port - p3.dsr_handler().set(m_uart[1], FUNC(mos6551_device::write_dsr)); - p3.dcd_handler().set(m_uart[1], FUNC(mos6551_device::write_dcd)); - p3.rxd_handler().set(m_uart[1], FUNC(mos6551_device::write_rxd)); - p3.cts_handler().set(m_uart[1], FUNC(mos6551_device::write_cts)); - - rs232_port_device &p4(RS232_PORT(config, "p4", default_rs232_devices, nullptr)); // printer port - p4.dsr_handler().set(m_uart[2], FUNC(mos6551_device::write_dsr)); // from pin 20 (DTR) - p4.rxd_handler().set(m_uart[2], FUNC(mos6551_device::write_rxd)); // from pin 2 (TXD) -} - -/* ROM definition */ -ROM_START( tv950 ) - ROM_REGION(0x2000, "maincpu", 0) - ROM_LOAD( "180000-001a_a41_eb17.bin", 0x001000, 0x001000, CRC(b7187cc5) SHA1(41cc8fd51661314e03ee7e00cc1e206e9a694d92) ) - ROM_LOAD( "180000-007a_a42_67d3.bin", 0x000000, 0x001000, CRC(3ef2e6fb) SHA1(21ccfd2b50c37b715eed67671b82faa4d75fc6bb) ) - - ROM_REGION16_LE(0x2000, "graphics", 0) - ROM_LOAD16_BYTE( "180000-002a_a33_9294.bin", 0x000001, 0x001000, CRC(eaf4f346) SHA1(b4c531626846f3f055ddc086ac24fdb1b34f3f8e) ) - ROM_LOAD16_BYTE( "180000-003a_a32_7ebf.bin", 0x000000, 0x001000, CRC(783ca0b6) SHA1(1cec9a9a56ef5795809f7ca7cd2e3f61b27e698d) ) - - ROM_REGION(0x10000, "user1", 0) - // came with "tv950.zip" - ROM_LOAD( "180000-43i.a25", 0x0000, 0x1000, CRC(ac6f0bfc) SHA1(2a3863700405fbb9e510613559d78fceee3544e8) ) - ROM_LOAD( "180000-44i.a20", 0x0000, 0x1000, CRC(db91a727) SHA1(e94724ed1a563fb846f4203ae6523ee6b4c6577f) ) - // came with "tv950kbd.zip" - ROM_LOAD( "1800000-003a.a32", 0x0000, 0x1000, CRC(eaef0138) SHA1(7198851299fce07c95d18e32cbfbe936c0dbec2a) ) - ROM_LOAD( "1800000-002a.a33", 0x0000, 0x1000, CRC(856dd85c) SHA1(e2570017e098b0e1ead7749e9c2ac40be2367433) ) -ROM_END - -/* Driver */ -// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS -COMP( 1981, tv950, 0, 0, tv950, tv950, tv950_state, empty_init, "TeleVideo", "Model 950 Video Display Terminal", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_SOUND ) |