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https://github.com/holub/mame
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-ex1280: Added skeleton device for Vectrix EX1280 ISA card. [Ryan Holtz, Bitsavers]
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mooglyguy
parent
bb01fc2a81
commit
d808dd967a
@ -1426,6 +1426,8 @@ if (BUSES["ISA"]~=null) then
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MAME_DIR .. "src/devices/bus/isa/svga_cirrus.h",
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MAME_DIR .. "src/devices/bus/isa/ega.cpp",
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MAME_DIR .. "src/devices/bus/isa/ega.h",
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MAME_DIR .. "src/devices/bus/isa/ex1280.cpp",
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MAME_DIR .. "src/devices/bus/isa/ex1280.h",
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MAME_DIR .. "src/devices/bus/isa/pgc.cpp",
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MAME_DIR .. "src/devices/bus/isa/pgc.h",
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MAME_DIR .. "src/devices/bus/isa/vga.cpp",
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216
src/devices/bus/isa/ex1280.cpp
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216
src/devices/bus/isa/ex1280.cpp
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@ -0,0 +1,216 @@
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// license:BSD-3-Clause
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// copyright-holders:Ryan Holtz
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#include "emu.h"
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#include "ex1280.h"
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DEFINE_DEVICE_TYPE(ISA16_EX1280, isa16_ex1280_device, "ex1280", "Vectrix EX1280")
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//-------------------------------------------------
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// isa16_ex1280_device - constructor
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//-------------------------------------------------
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isa16_ex1280_device::isa16_ex1280_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
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: device_t(mconfig, ISA16_EX1280, tag, owner, clock)
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, device_isa16_card_interface(mconfig, *this)
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, m_cpu(*this, "maincpu")
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, m_ramdac(*this, "ramdac")
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, m_screen(*this, "screen")
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{
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}
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//-------------------------------------------------
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// device_start - device-specific startup
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//-------------------------------------------------
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void isa16_ex1280_device::device_start()
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{
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set_isa_device();
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save_item(NAME(m_flags));
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}
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//-------------------------------------------------
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// device_reset - device-specific reset
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//-------------------------------------------------
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void isa16_ex1280_device::device_reset()
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{
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m_vram.clear();
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m_vram.resize(0xa00000);
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m_flags = 0x0002;
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}
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//-------------------------------------------------
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// main_map - memory map for the card's TMS34010
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//-------------------------------------------------
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void isa16_ex1280_device::main_map(address_map &map)
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{
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map(0x00000000, 0x009fffff).rw(FUNC(isa16_ex1280_device::vram_r), FUNC(isa16_ex1280_device::vram_w));
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map(0x04000000, 0x04000fff).rw(FUNC(isa16_ex1280_device::regs_r), FUNC(isa16_ex1280_device::regs_w));
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map(0xfff00000, 0xfffbffff).ram();
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map(0xfffc0000, 0xffffffff).rom().region("ex1280", 0);
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}
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//-------------------------------------------------
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// device_add_mconfig - add device configuration
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//-------------------------------------------------
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void isa16_ex1280_device::device_add_mconfig(machine_config &config)
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{
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TMS34010(config, m_cpu, 64000000);
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m_cpu->set_addrmap(AS_PROGRAM, &isa16_ex1280_device::main_map);
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m_cpu->set_halt_on_reset(false);
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m_cpu->set_pixel_clock(64000000);
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m_cpu->set_pixels_per_clock(1);
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m_cpu->set_scanline_rgb32_callback(FUNC(isa16_ex1280_device::scanline_update));
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m_cpu->set_shiftreg_in_callback(FUNC(isa16_ex1280_device::to_shiftreg)); /* write to shiftreg function */
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m_cpu->set_shiftreg_out_callback(FUNC(isa16_ex1280_device::from_shiftreg)); /* read from shiftreg function */
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m_cpu->set_screen(m_screen);
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SCREEN(config, m_screen, SCREEN_TYPE_RASTER);
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m_screen->set_refresh_hz(60);
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m_screen->set_vblank_time(ATTOSECONDS_IN_USEC(2500)); // Not accurate
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m_screen->set_size(640, 480);
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m_screen->set_visarea(0, 640-1, 0, 480-1);
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m_screen->set_screen_update(m_cpu, FUNC(tms34010_device::tms340x0_rgb32));
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m_screen->screen_vblank().set(FUNC(isa16_ex1280_device::vblank_w));
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BT451(config, m_ramdac, 0);
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}
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//-------------------------------------------------
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// regs_r - register read handler
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//-------------------------------------------------
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READ16_MEMBER(isa16_ex1280_device::regs_r)
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{
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uint16_t data = 0;
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if (offset == 0)
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{
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data = m_flags;
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}
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else if (offset == 4)
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{
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data = 0x0000;
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}
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logerror("%s: regs_r: %08x: %04x & %04x\n", machine().describe_context(), 0x04000000 | (offset << 1), data, mem_mask);
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return data;
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}
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//-------------------------------------------------
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// regs_w - register write handler
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//-------------------------------------------------
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WRITE16_MEMBER(isa16_ex1280_device::regs_w)
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{
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logerror("%s: regs_w: %08x = %04x & %04x\n", machine().describe_context(), 0x04000000 | (offset << 1), data, mem_mask);
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}
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//-------------------------------------------------
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// vram_r - VRAM direct read handler
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//-------------------------------------------------
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READ16_MEMBER(isa16_ex1280_device::vram_r)
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{
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logerror("vram_r: %08x = %04x\n", offset, m_vram[offset]);
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return m_vram[offset];
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}
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//-------------------------------------------------
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// vram_r - VRAM direct write handler
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//-------------------------------------------------
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WRITE16_MEMBER(isa16_ex1280_device::vram_w)
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{
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logerror("vram_r: %08x = %04x & %04x\n", offset, data, mem_mask);
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COMBINE_DATA(&m_vram[offset]);
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}
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//-------------------------------------------------
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// scanline_update -
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//-------------------------------------------------
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TMS340X0_SCANLINE_RGB32_CB_MEMBER(isa16_ex1280_device::scanline_update)
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{
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uint16_t *src = &m_vram[params->rowaddr << 8];
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uint32_t *dest = &bitmap.pix32(scanline);
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const pen_t *pens = m_ramdac->pens();
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int coladdr = params->coladdr << 1;
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/* copy the non-blanked portions of this scanline */
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for (int x = params->heblnk; x < params->hsblnk; x += 4)
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{
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uint16_t pixels = src[coladdr++];
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dest[x + 0] = pens[pixels & 0x0f];
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dest[x + 1] = pens[(pixels >> 4) & 0x0f];
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dest[x + 2] = pens[(pixels >> 8) & 0x0f];
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dest[x + 3] = pens[(pixels >> 12) & 0x0f];
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}
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}
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//-------------------------------------------------
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// to_shiftreg - handle VRAM->TMS shift register
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//-------------------------------------------------
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TMS340X0_TO_SHIFTREG_CB_MEMBER(isa16_ex1280_device::to_shiftreg)
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{
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printf("address to shiftreg: %08x\n", address);
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if (address < 0xa00000)
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{
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memcpy(shiftreg, &m_vram[address >> 4], 0x400);
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}
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}
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//---------------------------------------------------
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// from_shiftreg - handle TMS shift register->VRAM
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//---------------------------------------------------
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TMS340X0_FROM_SHIFTREG_CB_MEMBER(isa16_ex1280_device::from_shiftreg)
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{
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printf("address from shiftreg: %08x\n", address);
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if (address < 0xa00000)
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{
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memcpy(&m_vram[address >> 4], shiftreg, 0x400);
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}
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}
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//-------------------------------------------------
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// vblank_w - toggle vblank bit(?)
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//-------------------------------------------------
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WRITE_LINE_MEMBER(isa16_ex1280_device::vblank_w)
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{
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//m_flags &= ~(1 << 1);
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//m_flags |= (state << 1);
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}
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//-------------------------------------------------
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// rom_region - device-specific ROM region
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//-------------------------------------------------
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ROM_START( ex1280 )
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ROM_REGION16_LE(0x8000, "ex1280", 0)
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ROM_LOAD16_BYTE("hbv10lo.bin", 0x0000, 0x4000, CRC(4de578b8) SHA1(cd7bc7859dd44f978adca7506afb0a1a73cb1121) )
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ROM_LOAD16_BYTE("hbv10hi.bin", 0x0001, 0x4000, CRC(b87caa0c) SHA1(88c19cf36cb98e59810dad2a2f1f0e6c884cd7eb) )
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ROM_END
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const tiny_rom_entry *isa16_ex1280_device::device_rom_region() const
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{
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return ROM_NAME( ex1280 );
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}
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62
src/devices/bus/isa/ex1280.h
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62
src/devices/bus/isa/ex1280.h
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@ -0,0 +1,62 @@
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// license:BSD-3-Clause
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// copyright-holders:Ryan Holtz
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#ifndef MAME_BUS_ISA_EX1280_H
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#define MAME_BUS_ISA_EX1280_H
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#pragma once
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#include "isa.h"
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#include "cpu/tms34010/tms34010.h"
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#include "video/bt45x.h"
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#include "screen.h"
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//**************************************************************************
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// TYPE DEFINITIONS
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//**************************************************************************
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// ======================> isa16_ex1280_device
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class isa16_ex1280_device : public device_t,
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public device_isa16_card_interface
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{
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public:
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// construction/destruction
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isa16_ex1280_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
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// Flag non working features
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static constexpr feature_type unemulated_features() { return feature::GRAPHICS | feature::PALETTE; }
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protected:
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// device-level overrides
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virtual void device_start() override;
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virtual void device_reset() override;
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// optional information overrides
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virtual void device_add_mconfig(machine_config &config) override;
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virtual const tiny_rom_entry *device_rom_region() const override;
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DECLARE_READ16_MEMBER(vram_r);
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DECLARE_WRITE16_MEMBER(vram_w);
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DECLARE_READ16_MEMBER(regs_r);
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DECLARE_WRITE16_MEMBER(regs_w);
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DECLARE_WRITE_LINE_MEMBER(vblank_w);
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required_device<tms34010_device> m_cpu;
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required_device<bt451_device> m_ramdac;
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required_device<screen_device> m_screen;
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TMS340X0_TO_SHIFTREG_CB_MEMBER(to_shiftreg);
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TMS340X0_FROM_SHIFTREG_CB_MEMBER(from_shiftreg);
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TMS340X0_SCANLINE_RGB32_CB_MEMBER(scanline_update);
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void main_map(address_map &map);
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std::vector<uint16_t> m_vram;
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uint16_t m_flags;
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};
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// device type definition
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DECLARE_DEVICE_TYPE(ISA16_EX1280, isa16_ex1280_device)
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#endif // MAME_BUS_ISA_EX1280_H
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@ -23,6 +23,7 @@
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#include "svga_trident.h"
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#include "num9rev.h"
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#include "eis_hgb107x.h"
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#include "ex1280.h"
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// storage
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#include "fdc.h"
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@ -209,6 +210,7 @@ void pc_isa16_cards(device_slot_interface &device)
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device.option_add("bt542bh", BT542BH);
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device.option_add("bt545s", BT545S);
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device.option_add("dcb", NOVELL_DCB);
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device.option_add("ex1280", ISA16_EX1280);
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device.option_add("ultra12f", ULTRA12F);
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device.option_add("ultra14f", ULTRA14F);
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device.option_add("ultra24f", ULTRA24F); // actually an EISA card
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