diff options
Diffstat (limited to 'src/devices/bus/sbus/cgthree.cpp')
-rw-r--r-- | src/devices/bus/sbus/cgthree.cpp | 121 |
1 files changed, 0 insertions, 121 deletions
diff --git a/src/devices/bus/sbus/cgthree.cpp b/src/devices/bus/sbus/cgthree.cpp deleted file mode 100644 index 091efef3b21..00000000000 --- a/src/devices/bus/sbus/cgthree.cpp +++ /dev/null @@ -1,121 +0,0 @@ -// license:BSD-3-Clause -// copyright-holders:Ryan Holtz -/*************************************************************************** - - Sun cgthree color video controller - -***************************************************************************/ - -#include "emu.h" -#include "cgthree.h" -#include "screen.h" - -DEFINE_DEVICE_TYPE(SBUS_CGTHREE, sbus_cgthree_device, "cgthree", "Sun cgthree SBus Video") - -void sbus_cgthree_device::mem_map(address_map &map) -{ - map(0x00000000, 0x01ffffff).rw(FUNC(sbus_cgthree_device::unknown_r), FUNC(sbus_cgthree_device::unknown_w)); - map(0x00000000, 0x000007ff).r(FUNC(sbus_cgthree_device::rom_r)); - map(0x00400000, 0x0040000f).m(m_ramdac, FUNC(bt458_device::map)).umask32(0xff000000); - map(0x007ff800, 0x007ff81f).rw(FUNC(sbus_cgthree_device::regs_r), FUNC(sbus_cgthree_device::regs_w)); - map(0x00800000, 0x008fffff).rw(FUNC(sbus_cgthree_device::vram_r), FUNC(sbus_cgthree_device::vram_w)); - map(0x00bff800, 0x00cff7ff).rw(FUNC(sbus_cgthree_device::vram_r), FUNC(sbus_cgthree_device::vram_w)); -} - -ROM_START( sbus_cgthree ) - ROM_REGION32_BE(0x800, "prom", ROMREGION_ERASEFF) - ROM_LOAD( "sunw,501-1415.bin", 0x0000, 0x0800, CRC(d1eb6f4d) SHA1(9bef98b2784b6e70167337bb27cd07952b348b5a)) -ROM_END - -const tiny_rom_entry *sbus_cgthree_device::device_rom_region() const -{ - return ROM_NAME( sbus_cgthree ); -} - -void sbus_cgthree_device::device_add_mconfig(machine_config &config) -{ - SCREEN(config, m_screen, SCREEN_TYPE_RASTER); - m_screen->set_screen_update(FUNC(sbus_cgthree_device::screen_update)); - m_screen->set_raw(92.9405_MHz_XTAL, 1504, 0, 1152, 937, 0, 900); - - BT458(config, m_ramdac, 0); -} - -sbus_cgthree_device::sbus_cgthree_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) - : device_t(mconfig, SBUS_CGTHREE, tag, owner, clock) - , device_sbus_card_interface(mconfig, *this) - , m_rom(*this, "prom") - , m_screen(*this, "screen") - , m_ramdac(*this, "ramdac") -{ -} - -void sbus_cgthree_device::device_start() -{ - m_vram = std::make_unique<uint32_t[]>(0x100000/4); - save_pointer(NAME(m_vram), 0x100000/4); -} - -void sbus_cgthree_device::device_reset() -{ -} - -void sbus_cgthree_device::install_device() -{ - m_sbus->install_device(m_base, m_base + 0x1ffffff, *this, &sbus_cgthree_device::mem_map); -} - -uint32_t sbus_cgthree_device::screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect) -{ - const pen_t *pens = m_ramdac->pens(); - uint8_t *vram = (uint8_t *)&m_vram[0]; - - for (int y = 0; y < 900; y++) - { - uint32_t *scanline = &bitmap.pix32(y); - for (int x = 0; x < 1152; x++) - { - const uint8_t pixel = vram[y * 1152 + BYTE4_XOR_BE(x)]; - *scanline++ = pens[pixel]; - } - } - - return 0; -} - -READ32_MEMBER(sbus_cgthree_device::unknown_r) -{ - logerror("%s: unknown_r: %08x & %08x\n", machine().describe_context(), offset << 2, mem_mask); - return 0; -} - -WRITE32_MEMBER(sbus_cgthree_device::unknown_w) -{ - logerror("%s: unknown_w: %08x = %08x & %08x\n", machine().describe_context(), offset << 2, data, mem_mask); -} - -READ8_MEMBER(sbus_cgthree_device::regs_r) -{ - logerror("%s: regs_r: Unimplemented: %08x\n", machine().describe_context(), 0x7ff800 + offset); - return 0; -} - -WRITE8_MEMBER(sbus_cgthree_device::regs_w) -{ - logerror("%s: regs_w: Unimplemented: %08x = %02x\n", machine().describe_context(), 0x7ff800 + offset, data); -} - -READ32_MEMBER(sbus_cgthree_device::rom_r) -{ - return ((uint32_t*)m_rom->base())[offset]; -} - -READ32_MEMBER(sbus_cgthree_device::vram_r) -{ - return m_vram[offset]; -} - -WRITE32_MEMBER(sbus_cgthree_device::vram_w) -{ - COMBINE_DATA(&m_vram[offset]); -} |