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https://github.com/holub/mame
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New machines marked as NOT_WORKING
---------------------------------- Insight Enterprises Z80 SBC (Prototype?) [Dirk Best, Tech Time Traveller]
This commit is contained in:
Dirk Best
parent
0712ac147e
commit
f288a2af04
@ -4504,6 +4504,7 @@ files {
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MAME_DIR .. "src/mame/drivers/ibm3153.cpp",
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MAME_DIR .. "src/mame/drivers/icatel.cpp",
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MAME_DIR .. "src/mame/drivers/icebox.cpp",
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MAME_DIR .. "src/mame/drivers/iez80.cpp",
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MAME_DIR .. "src/mame/drivers/if800.cpp",
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MAME_DIR .. "src/mame/drivers/ikt5a.cpp",
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MAME_DIR .. "src/mame/drivers/imsai.cpp",
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232
src/mame/drivers/iez80.cpp
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232
src/mame/drivers/iez80.cpp
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@ -0,0 +1,232 @@
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// license: BSD-3-Clause
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// copyright-holders: Dirk Best
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/***************************************************************************
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Insight Enterprises Z80 Single Board Computer
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Possibly a prototype or part of a larger system. A video with more
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info is available at https://www.youtube.com/watch?v=_z1kBb-Zwpg.
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TODO:
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- Verify device hookup
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- Figure out what's at 0x20, 0x21, 0x3c, 0x3d
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- Hook up FDC
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- Hook up CRT8002 (video attributes)
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- Much more
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***************************************************************************/
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#include "emu.h"
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#include "cpu/z80/z80.h"
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#include "machine/upd765.h"
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#include "machine/z80ctc.h"
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#include "machine/z80dma.h"
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#include "machine/z80pio.h"
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#include "machine/z80sio.h"
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#include "video/tms9927.h"
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#include "emupal.h"
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#include "screen.h"
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namespace {
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//**************************************************************************
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// TYPE DEFINITIONS
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//**************************************************************************
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class iez80_state : public driver_device
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{
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public:
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iez80_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_crtc(*this, "crtc"),
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m_palette(*this, "palette"),
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m_chargen(*this, "chargen"),
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m_vram(*this, "vram")
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{ }
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void iez80(machine_config &config);
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protected:
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virtual void machine_start() override;
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virtual void machine_reset() override;
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private:
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required_device<z80_device> m_maincpu;
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required_device<crt5037_device> m_crtc;
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required_device<palette_device> m_palette;
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required_region_ptr<uint8_t> m_chargen;
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required_shared_ptr<uint8_t> m_vram;
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void mem_map(address_map &map);
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void io_map(address_map &map);
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uint32_t screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
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};
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//**************************************************************************
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// ADDRESS MAPS
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//**************************************************************************
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void iez80_state::mem_map(address_map &map)
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{
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map(0x0000, 0x0fff).rom().region("maincpu", 0);
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map(0x2000, 0x2fff).ram().share("vram");
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map(0xe000, 0xffff).ram();
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}
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void iez80_state::io_map(address_map &map)
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{
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map.global_mask(0xff);
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// map(0x20, 0x20).lr8([this]() { return machine().rand(); }, "unk20");
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// map(0x21, 0x21).lr8([this]() { return machine().rand(); }, "unk21");
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map(0x24, 0x27).rw("pio", FUNC(z80pio_device::read), FUNC(z80pio_device::write));
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map(0x28, 0x2b).rw("ctc", FUNC(z80ctc_device::read), FUNC(z80ctc_device::write));
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map(0x2c, 0x2f).rw("dart1", FUNC(z80sio_device::ba_cd_r), FUNC(z80sio_device::ba_cd_w));
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map(0x32, 0x32).rw("dma", FUNC(z80dma_device::read), FUNC(z80dma_device::write));
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map(0x38, 0x3b).rw("dart2", FUNC(z80sio_device::ba_cd_r), FUNC(z80sio_device::ba_cd_w));
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// map(0x3c, 0x3c).lr8([this]() { return machine().rand(); }, "unk3c");
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// map(0x3d, 0x3d).lr8([this]() { return machine().rand(); }, "unk3d");
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map(0x40, 0x4f).rw("crtc", FUNC(crt5037_device::read), FUNC(crt5037_device::write));
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}
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//**************************************************************************
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// INPUT DEFINITIONS
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//**************************************************************************
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static INPUT_PORTS_START( iez80 )
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INPUT_PORTS_END
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//**************************************************************************
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// VIDEO EMULATION
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//**************************************************************************
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uint32_t iez80_state::screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect)
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{
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rgb_t const *const pen = m_palette->palette()->entry_list_raw();
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rectangle cursor;
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m_crtc->cursor_bounds(cursor);
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for (int y = 0; y < 24; y++)
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{
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for (int ra = 0; ra < 12; ra++)
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{
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for (int x = 0; x < 80; x++)
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{
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uint8_t chr = m_vram[(y * 160) + (x * 2) + 0];
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// uint8_t attr = m_vram[(y * 160) + (x * 2) + 1];
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uint8_t data = m_chargen[((chr << 4) | ra) & 0x7ff];
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if (cursor.contains(x * 8, y * 12))
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data ^= 0xff;
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// draw 8 pixels of the char
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for (int i = 0; i < 8; i++)
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bitmap.pix(y * 12 + ra, x * 8 + i) = pen[BIT(data, 7 - i)];
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}
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}
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}
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return 0;
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}
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static const gfx_layout crt8002_charlayout =
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{
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8, 12,
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RGN_FRAC(1,1),
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1,
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{ 0 },
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{ STEP8(0,1) },
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{ 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8, 8*8, 9*8, 10*8, 11*8 },
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8*16
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};
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static GFXDECODE_START( gfx_crt8002 )
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GFXDECODE_ENTRY("chargen", 0, crt8002_charlayout, 0, 1)
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GFXDECODE_END
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//**************************************************************************
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// MACHINE EMULATION
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//**************************************************************************
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void iez80_state::machine_start()
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{
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}
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void iez80_state::machine_reset()
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{
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}
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//**************************************************************************
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// MACHINE DEFINTIONS
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//**************************************************************************
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static const z80_daisy_config daisy_chain[] =
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{
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{ "ctc" },
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{ nullptr }
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};
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void iez80_state::iez80(machine_config &config)
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{
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Z80(config, m_maincpu, 2'500'000); // unknown clock
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m_maincpu->set_addrmap(AS_PROGRAM, &iez80_state::mem_map);
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m_maincpu->set_addrmap(AS_IO, &iez80_state::io_map);
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m_maincpu->set_daisy_config(daisy_chain);
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Z80DMA(config, "dma", 4'000'000); // unknown clock
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z80ctc_device& ctc(Z80CTC(config, "ctc", 4'000'000)); // unknown clock
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ctc.intr_callback().set_inputline(m_maincpu, INPUT_LINE_IRQ0);
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Z80PIO(config, "pio", 4'000'000); // unknown clock
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Z80DART(config, "dart1", 4'000'000); // unknown clock (5.0688_MHz_XTAL near)
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Z80DART(config, "dart2", 4'000'000); // unknown clock (5.0688_MHz_XTAL near)
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// video hardware
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screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER));
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screen.set_raw(17'550'000, 816, 0, 640, 358, 0, 288); // unknown clock, hand-tuned to ~60fps
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screen.set_screen_update(FUNC(iez80_state::screen_update));
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GFXDECODE(config, "gfxdecode", "palette", gfx_crt8002);
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PALETTE(config, m_palette, palette_device::MONOCHROME);
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CRT5037(config, m_crtc, 17'550'000 / 8); // unknown clock
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m_crtc->set_char_width(8);
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m_crtc->set_screen("screen");
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}
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//**************************************************************************
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// ROM DEFINITIONS
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//**************************************************************************
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ROM_START( iez80 )
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ROM_REGION(0x1000, "maincpu", 0)
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ROM_LOAD("iez80.bin", 0x0000, 0x1000, CRC(d73137d2) SHA1(a340a47c5f37bbef244d35d581ff0beeeec5d677))
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ROM_REGION(0x800, "chargen", 0)
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ROM_LOAD("8002.bin", 0x0000, 0x0800, CRC(fdd6eb13) SHA1(a094d416e66bdab916e72238112a6265a75ca690))
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ROM_END
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} // anonymous namespace
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//**************************************************************************
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// SYSTEM DRIVERS
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//**************************************************************************
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// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS
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COMP( 1983, iez80, 0, 0, iez80, iez80, iez80_state, empty_init, "Insight Enterprises", "Z80 SBC (Prototype?)", MACHINE_IS_SKELETON )
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@ -16731,6 +16731,9 @@ v1 //
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@source:ie15.cpp
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ie15 //
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@source:iez80.cpp
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iez80 //
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@source:if800.cpp
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if800 //
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@ -429,6 +429,7 @@ ibmpcjr.cpp
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icatel.cpp
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icebox.cpp
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ie15.cpp
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iez80.cpp
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if800.cpp
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ikt5a.cpp
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imds2.cpp
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