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https://github.com/holub/mame
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mac: Initial support for the Sigma Designs LaserView monochrome NuBus video card [Al Kossow, R. Belmont]
This commit is contained in:
arbee
parent
7697fb631e
commit
6f3f0b805e
@ -2389,6 +2389,8 @@ if (BUSES["NUBUS"]~=null) then
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MAME_DIR .. "src/devices/bus/nubus/bootbug.h",
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MAME_DIR .. "src/devices/bus/nubus/quadralink.cpp",
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MAME_DIR .. "src/devices/bus/nubus/quadralink.h",
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MAME_DIR .. "src/devices/bus/nubus/laserview.cpp",
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MAME_DIR .. "src/devices/bus/nubus/laserview.h",
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MAME_DIR .. "src/devices/bus/nubus/pds30_cb264.cpp",
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MAME_DIR .. "src/devices/bus/nubus/pds30_cb264.h",
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MAME_DIR .. "src/devices/bus/nubus/pds30_procolor816.cpp",
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209
src/devices/bus/nubus/laserview.cpp
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209
src/devices/bus/nubus/laserview.cpp
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@ -0,0 +1,209 @@
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// license:BSD-3-Clause
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// copyright-holders:R. Belmont
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/***************************************************************************
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Sigma Designs fixed-resolution monochrome video card
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1664x1200 or 832x600 according to the ad, can't find the 1664 mode.
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VRAM at Fs000000, mirrored at Fs900000.
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Fs0BFFEC: write 0x04 to enable VBL, 0x01 to ack VBL
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***************************************************************************/
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#include "emu.h"
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#include "laserview.h"
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#include "screen.h"
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#define LASERVIEW_SCREEN_NAME "laserview_screen"
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#define LASERVIEW_ROM_REGION "laserview_rom"
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#define VRAM_SIZE (0x40000)
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ROM_START( laserview )
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ROM_REGION(0x8000, LASERVIEW_ROM_REGION, 0)
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ROM_LOAD( "lva-m2-00020_v3.00.bin", 0x000000, 0x008000, CRC(569d1fb7) SHA1(fd505505226abb5fea7c10ed14e8841077ef1be6) )
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ROM_END
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//**************************************************************************
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// GLOBAL VARIABLES
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//**************************************************************************
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DEFINE_DEVICE_TYPE(NUBUS_LASERVIEW, nubus_laserview_device, "nb_laserview", "Sigma Designs LaserView video card")
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//-------------------------------------------------
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// device_add_mconfig - add device configuration
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//-------------------------------------------------
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void nubus_laserview_device::device_add_mconfig(machine_config &config)
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{
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screen_device &screen(SCREEN(config, LASERVIEW_SCREEN_NAME, SCREEN_TYPE_RASTER));
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screen.set_screen_update(FUNC(nubus_laserview_device::screen_update));
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screen.set_size(832,600);
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screen.set_visarea(0, 832-1, 0, 600-1);
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screen.set_refresh_hz(70);
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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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const tiny_rom_entry *nubus_laserview_device::device_rom_region() const
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{
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return ROM_NAME( laserview );
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}
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//**************************************************************************
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// LIVE DEVICE
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//**************************************************************************
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//-------------------------------------------------
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// nubus_laserview_device - constructor
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//-------------------------------------------------
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nubus_laserview_device::nubus_laserview_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) :
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nubus_laserview_device(mconfig, NUBUS_LASERVIEW, tag, owner, clock)
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{
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}
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nubus_laserview_device::nubus_laserview_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock) :
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device_t(mconfig, type, tag, owner, clock),
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device_nubus_card_interface(mconfig, *this),
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m_vbl_disable(0)
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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 nubus_laserview_device::device_start()
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{
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uint32_t slotspace;
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install_declaration_rom(this, LASERVIEW_ROM_REGION, true);
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slotspace = get_slotspace();
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// printf("[laserview %p] slotspace = %x\n", this, slotspace);
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m_vram.resize(VRAM_SIZE);
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install_bank(slotspace, slotspace+VRAM_SIZE-1, "bank_laserview", &m_vram[0]);
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install_bank(slotspace+0x900000, slotspace+0x900000+VRAM_SIZE-1, "bank_laserview2", &m_vram[0]);
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nubus().install_device(slotspace+0xB0000, slotspace+0xBFFFF, read32_delegate(*this, FUNC(nubus_laserview_device::regs_r)), write32_delegate(*this, FUNC(nubus_laserview_device::regs_w)));
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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 nubus_laserview_device::device_reset()
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{
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m_vbl_disable = 1;
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m_prot_state = 0;
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m_toggle = 0;
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memset(&m_vram[0], 0, VRAM_SIZE);
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m_palette[0] = rgb_t(255, 255, 255);
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m_palette[1] = rgb_t(0, 0, 0);
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}
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/***************************************************************************
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Viking 1024x768 B&W card section
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***************************************************************************/
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uint32_t nubus_laserview_device::screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect)
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{
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uint32_t *scanline;
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int x, y;
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uint8_t pixels;
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if (!m_vbl_disable)
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{
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raise_slot_irq();
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}
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for (y = 0; y < 600; y++)
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{
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scanline = &bitmap.pix32(y);
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for (x = 0; x < 832/8; x++)
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{
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pixels = m_vram[(y * 104) + (BYTE4_XOR_BE(x)) + 0x20];
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*scanline++ = m_palette[(pixels>>7)&1];
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*scanline++ = m_palette[(pixels>>6)&1];
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*scanline++ = m_palette[(pixels>>5)&1];
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*scanline++ = m_palette[(pixels>>4)&1];
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*scanline++ = m_palette[(pixels>>3)&1];
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*scanline++ = m_palette[(pixels>>2)&1];
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*scanline++ = m_palette[(pixels>>1)&1];
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*scanline++ = m_palette[(pixels&1)];
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}
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}
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return 0;
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}
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WRITE32_MEMBER( nubus_laserview_device::regs_w )
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{
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// printf("%08x to regs @ %x mask %08x\n", data, offset, mem_mask);
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switch (offset)
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{
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case 0x3ffb:
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if ((data & 0xff) == 0x04)
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{
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m_vbl_disable = 0;
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}
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else if ((data & 0xff) == 01)
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{
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lower_slot_irq();
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}
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else
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{
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m_vbl_disable = 1;
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lower_slot_irq();
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}
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break;
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}
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}
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READ32_MEMBER( nubus_laserview_device::regs_r )
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{
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//f (offset != 0x3fc1) printf("Read regs_r @ %x mask %08x\n", offset, mem_mask);
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switch (offset)
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{
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case 0x3fc1:
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m_toggle ^= 1;
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if (m_toggle)
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{
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return 0x01010101;
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}
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else
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{
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return 0;
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}
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machine().debug_break();
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break;
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case 0x3fc2:
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if (m_prot_state == 0)
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{
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m_prot_state = 1;
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return 0;
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}
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return 0x02000000;
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case 0x3fff:
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m_prot_state = 0;
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return 0xfeffffff;
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}
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return 0xffffffff;
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}
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50
src/devices/bus/nubus/laserview.h
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50
src/devices/bus/nubus/laserview.h
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@ -0,0 +1,50 @@
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// license:BSD-3-Clause
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// copyright-holders:R. Belmont
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#ifndef MAME_BUS_NUBUS_LASERVIEW_H
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#define MAME_BUS_NUBUS_LASERVIEW_H
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#pragma once
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#include "nubus.h"
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//**************************************************************************
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// TYPE DEFINITIONS
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//**************************************************************************
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// ======================> nubus_laserview_device
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class nubus_laserview_device :
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public device_t,
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public device_nubus_card_interface
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{
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public:
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// construction/destruction
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nubus_laserview_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
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protected:
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nubus_laserview_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock);
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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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private:
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DECLARE_READ32_MEMBER(regs_r);
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DECLARE_WRITE32_MEMBER(regs_w);
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uint32_t screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
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std::vector<uint8_t> m_vram;
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uint32_t m_vbl_disable, m_palette[2];
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int m_prot_state;
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int m_toggle;
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};
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// device type definition
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DECLARE_DEVICE_TYPE(NUBUS_LASERVIEW, nubus_laserview_device)
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#endif // MAME_BUS_NUBUS_LASERVIEW_H
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@ -73,6 +73,7 @@
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#include "bus/nubus/nubus_m2video.h"
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#include "bus/nubus/bootbug.h"
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#include "bus/nubus/quadralink.h"
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#include "bus/nubus/laserview.h"
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#include "bus/nubus/pds30_cb264.h"
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#include "bus/nubus/pds30_procolor816.h"
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#include "bus/nubus/pds30_sigmalview.h"
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@ -881,6 +882,7 @@ static void mac_nubus_cards(device_slot_interface &device)
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device.option_add("enetnb", NUBUS_APPLEENET); /* Apple NuBus Ethernet */
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device.option_add("bootbug", NUBUS_BOOTBUG); /* Brigent BootBug debugger card */
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device.option_add("quadralink", NUBUS_QUADRALINK); /* AE Quadralink serial card */
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device.option_add("laserview", NUBUS_LASERVIEW); /* Sigma Designs LaserView monochrome video card */
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}
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static void mac_pds030_cards(device_slot_interface &device)
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