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Diffstat (limited to 'src/mame/drivers/vta2000.cpp')
-rw-r--r-- | src/mame/drivers/vta2000.cpp | 239 |
1 files changed, 0 insertions, 239 deletions
diff --git a/src/mame/drivers/vta2000.cpp b/src/mame/drivers/vta2000.cpp deleted file mode 100644 index 23e2226eafe..00000000000 --- a/src/mame/drivers/vta2000.cpp +++ /dev/null @@ -1,239 +0,0 @@ -// license:BSD-3-Clause -// copyright-holders:Robbbert -/*************************************************************************** - - VTA-2000 Terminal - - board images : http://fotki.yandex.ru/users/lodedome/album/93699?p=0 - - BDP-15 board only - - 29/11/2010 Skeleton driver. - -Better known on the net as BTA2000-15m. -It is a green-screen terminal, using RS232, and supposedly VT100 compatible. -The top line is a status line. - -Note: port 0 bit 4 is NOT a speaker bit. See code at 027B. - -****************************************************************************/ - -#include "emu.h" -#include "cpu/i8085/i8085.h" -#include "machine/i8251.h" -#include "machine/pit8253.h" -#include "machine/pic8259.h" -#include "sound/spkrdev.h" -#include "emupal.h" -#include "screen.h" -#include "speaker.h" - - -class vta2000_state : public driver_device -{ -public: - vta2000_state(const machine_config &mconfig, device_type type, const char *tag) - : driver_device(mconfig, type, tag) - , m_maincpu(*this, "maincpu") - , m_mainpit(*this, "mainpit") - , m_speaker(*this, "speaker") - , m_p_videoram(*this, "videoram") - , m_p_chargen(*this, "chargen") - { } - - void vta2000(machine_config &config); -private: - DECLARE_WRITE8_MEMBER(output_00); - DECLARE_WRITE_LINE_MEMBER(speaker_w); - - uint32_t screen_update_vta2000(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); - - void mem_map(address_map &map); - void io_map(address_map &map); - - virtual void machine_reset() override; - required_device<cpu_device> m_maincpu; - required_device<pit8253_device> m_mainpit; - required_device<speaker_sound_device> m_speaker; - required_shared_ptr<uint8_t> m_p_videoram; - required_region_ptr<u8> m_p_chargen; -}; - -WRITE8_MEMBER(vta2000_state::output_00) -{ - m_mainpit->write_gate0(BIT(data, 4)); -} - -WRITE_LINE_MEMBER(vta2000_state::speaker_w) -{ - m_speaker->level_w(state); -} - -void vta2000_state::mem_map(address_map &map) -{ - map.unmap_value_high(); - map(0x0000, 0x5fff).rom().region("roms", 0); - map(0x8000, 0xc7ff).ram().share("videoram"); - map(0xc800, 0xc8ff).rom().region("roms", 0x5000); -} - -void vta2000_state::io_map(address_map &map) -{ - map.unmap_value_high(); - map(0x00, 0x00).w(FUNC(vta2000_state::output_00)); - map(0x20, 0x21).rw("pic", FUNC(pic8259_device::read), FUNC(pic8259_device::write)); - map(0xc0, 0xc0).rw("usart", FUNC(i8251_device::data_r), FUNC(i8251_device::data_w)); - map(0xc3, 0xc3).rw("usart", FUNC(i8251_device::status_r), FUNC(i8251_device::control_w)); - map(0xc8, 0xcb).w("brgpit", FUNC(pit8253_device::write)); - map(0xe0, 0xe3).rw("mainpit", FUNC(pit8253_device::read), FUNC(pit8253_device::write)); -} - -/* Input ports */ -static INPUT_PORTS_START( vta2000 ) -INPUT_PORTS_END - - -void vta2000_state::machine_reset() -{ -} - -uint32_t vta2000_state::screen_update_vta2000(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) -/* Cursor is missing. */ -{ - static uint8_t framecnt=0; - uint8_t y,ra,gfx,attr,fg,bg; - uint16_t sy=0,ma=0,x,xx=0,chr; - - framecnt++; - - for (y = 0; y < 25; y++) - { - for (ra = 0; ra < 12; ra++) - { - uint16_t *p = &bitmap.pix16(sy++); - - xx = ma << 1; - for (x = ma; x < ma + 80; x++) - { - chr = m_p_videoram[xx++]; - attr = m_p_videoram[xx++]; - - if ((chr & 0x60)==0x60) - chr+=256; - - gfx = m_p_chargen[(chr<<4) | ra ]; - bg = 0; - - /* Process attributes */ - if (BIT(attr, 4)) - { - gfx ^= 0xff; // reverse video - bg = 2; - } - if (BIT(attr, 0)) - fg = 2; // highlight - else - fg = 1; - if ((BIT(attr, 1)) && (BIT(framecnt, 5))) - gfx = 0; // blink - if ((BIT(attr, 5)) && (ra == 10)) - { - gfx = 0xff; // underline - fg = 2; - } - - /* Display a scanline of a character */ - *p++ = BIT(gfx, 7) ? fg : bg; - *p++ = BIT(gfx, 6) ? fg : bg; - *p++ = BIT(gfx, 5) ? fg : bg; - *p++ = BIT(gfx, 4) ? fg : bg; - *p++ = BIT(gfx, 3) ? fg : bg; - *p++ = BIT(gfx, 2) ? fg : bg; - *p++ = BIT(gfx, 1) ? fg : bg; - *p++ = BIT(gfx, 0) ? fg : bg; - } - } - if (y) - ma+=132; - else - ma+=80; - } - return 0; -} - - -/* F4 Character Displayer */ -static const gfx_layout vta2000_charlayout = -{ - 8, 16, /* 8 x 16 characters */ - 512, /* 128 characters */ - 1, /* 1 bits per pixel */ - { 0 }, /* no bitplanes */ - /* x offsets */ - { 0, 1, 2, 3, 4, 5, 6, 7 }, - /* y offsets */ - { 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8, 8*8, 9*8, 10*8, 11*8, 12*8, 13*8, 14*8, 15*8 }, - 8*16 /* every char takes 16 bytes */ -}; - -static GFXDECODE_START( gfx_vta2000 ) - GFXDECODE_ENTRY( "chargen", 0x0000, vta2000_charlayout, 0, 1 ) -GFXDECODE_END - -void vta2000_state::vta2000(machine_config &config) -{ - /* basic machine hardware */ - I8080(config, m_maincpu, XTAL(4'000'000) / 4); - m_maincpu->set_addrmap(AS_PROGRAM, &vta2000_state::mem_map); - m_maincpu->set_addrmap(AS_IO, &vta2000_state::io_map); - m_maincpu->set_irq_acknowledge_callback("pic", FUNC(pic8259_device::inta_cb)); - - PIT8253(config, m_mainpit, 0); - m_mainpit->set_clk<0>(500'000); - m_mainpit->out_handler<0>().set(FUNC(vta2000_state::speaker_w)); - - pic8259_device &pic(PIC8259(config, "pic", 0)); - pic.in_sp_callback().set_constant(0); - pic.out_int_callback().set_inputline(m_maincpu, 0); - - i8251_device &usart(I8251(config, "usart", XTAL(4'000'000) / 4)); - usart.rxrdy_handler().set("pic", FUNC(pic8259_device::ir4_w)); - - pit8253_device &brgpit(PIT8253(config, "brgpit", 0)); - brgpit.set_clk<0>(1'228'800); // maybe - brgpit.set_clk<1>(1'228'800); - brgpit.out_handler<0>().set("usart", FUNC(i8251_device::write_rxc)); - brgpit.out_handler<1>().set("usart", FUNC(i8251_device::write_txc)); // or vice versa? - - /* video hardware */ - screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER, rgb_t::green())); - screen.set_refresh_hz(50); - screen.set_vblank_time(ATTOSECONDS_IN_USEC(2500)); /* not accurate */ - screen.set_size(80*8, 25*12); - screen.set_visarea(0, 80*8-1, 0, 25*12-1); - screen.set_screen_update(FUNC(vta2000_state::screen_update_vta2000)); - screen.set_palette("palette"); - - PALETTE(config, "palette", palette_device::MONOCHROME_HIGHLIGHT); - GFXDECODE(config, "gfxdecode", "palette", gfx_vta2000); - - SPEAKER(config, "mono").front_center(); - SPEAKER_SOUND(config, m_speaker).add_route(ALL_OUTPUTS, "mono", 0.5); -} - - -/* ROM definition */ -ROM_START( vta2000 ) - ROM_REGION( 0x6000, "roms", 0 ) - ROM_LOAD( "bdp-15_11.rom", 0x4000, 0x2000, CRC(d4abe3e9) SHA1(ab1973306e263b0f66f2e1ede50cb5230f8d69d5) ) - ROM_LOAD( "bdp-15_12.rom", 0x2000, 0x2000, CRC(4a5fe332) SHA1(f1401c26687236184fec0558cc890e796d7d5c77) ) - ROM_LOAD( "bdp-15_13.rom", 0x0000, 0x2000, CRC(b6b89d90) SHA1(0356d7ba77013b8a79986689fb22ef4107ef885b) ) - - ROM_REGION(0x2000, "chargen", ROMREGION_INVERT ) - ROM_LOAD( "bdp-15_14.rom", 0x0000, 0x2000, CRC(a1dc4f8e) SHA1(873fd211f44713b713d73163de2d8b5db83d2143) ) -ROM_END - -/* Driver */ - -// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS -COMP( 19??, vta2000, 0, 0, vta2000, vta2000, vta2000_state, empty_init, "<unknown>", "VTA2000-15m", MACHINE_NOT_WORKING ) |