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k037122.cpp: Update hardware information (#6759)
* k037122.cpp: Update hardware information hornet.cpp: Add screen raw parameters (verified in both voodoo and K037122 display timing parameters), Add notes * k037122.cpp: Adjust value in display timing is still unknown * k037122.cpp: Adjust display timing register
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cam900
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@ -1157,7 +1157,7 @@ void hornet_state::hornet(machine_config &config)
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// PCB description at top doesn't mention any EEPROM on the base board...
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// EEPROM_93C46_16BIT(config, "eeprom");
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VOODOO_1(config, m_voodoo[0], STD_VOODOO_1_CLOCK);
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VOODOO_1(config, m_voodoo[0], XTAL(50'000'000));
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m_voodoo[0]->set_fbmem(2);
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m_voodoo[0]->set_tmumem(4,0);
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m_voodoo[0]->set_screen_tag("screen");
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@ -1168,10 +1168,8 @@ void hornet_state::hornet(machine_config &config)
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/* video hardware */
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screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER));
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// Screeen size and timing is re-calculated later in voodoo card
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screen.set_refresh_hz(60);
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screen.set_size(64 * 8, 48 * 8);
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screen.set_visarea(0, 64 * 8 - 1, 0, 48 * 8 - 1);
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// default 24KHz parameter in both 037122 and voodoo, input clock correct? (58~Hz Vsync, 50MHz/3 or 64MHz/4?)
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screen.set_raw(XTAL(64'000'000) / 4, 644, 41, 41 + 512, 428, 27, 27 + 384);
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screen.set_screen_update(FUNC(hornet_state::screen_update));
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PALETTE(config, "palette").set_entries(65536);
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@ -1223,13 +1221,13 @@ void hornet_state::sscope(machine_config &config)
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m_k037122_1->set_screen("lscreen");
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m_k037122_1->set_palette("palette");
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K037122(config, m_k037122_2, 0);
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K037122(config, m_k037122_2, 0); // unknown input clock
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m_k037122_2->set_screen("rscreen");
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m_k037122_2->set_palette("palette");
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m_voodoo[0]->set_screen_tag("lscreen");
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VOODOO_1(config, m_voodoo[1], STD_VOODOO_1_CLOCK);
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VOODOO_1(config, m_voodoo[1], XTAL(50'000'000));
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m_voodoo[1]->set_fbmem(2);
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m_voodoo[1]->set_tmumem(4, 0);
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m_voodoo[1]->set_screen_tag("rscreen");
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@ -1242,17 +1240,13 @@ void hornet_state::sscope(machine_config &config)
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config.device_remove("screen");
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screen_device &lscreen(SCREEN(config, "lscreen", SCREEN_TYPE_RASTER));
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// Screeen size and timing is re-calculated later in voodoo card
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lscreen.set_refresh_hz(60);
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lscreen.set_size(512, 384);
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lscreen.set_visarea(0, 512 - 1, 0, 384 - 1);
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// default 24KHz parameter in both 037122 and voodoo, input clock correct? (58~Hz Vsync, 50MHz/3 or 64MHz/4?)
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lscreen.set_raw(XTAL(64'000'000) / 4, 644, 41, 41 + 512, 428, 27, 27 + 384);
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lscreen.set_screen_update(FUNC(hornet_state::screen_update));
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screen_device &rscreen(SCREEN(config, "rscreen", SCREEN_TYPE_RASTER));
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// Screeen size and timing is re-calculated later in voodoo card
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rscreen.set_refresh_hz(60);
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rscreen.set_size(512, 384);
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rscreen.set_visarea(0, 512 - 1, 0, 384 - 1);
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// default 24KHz parameter in both 037122 and voodoo, input clock correct? (58~Hz Vsync, 50MHz/3 or 64MHz/4?)
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rscreen.set_raw(XTAL(64'000'000) / 4, 644, 41, 41 + 512, 428, 27, 27 + 384);
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rscreen.set_screen_update(FUNC(hornet_state::screen_update_rscreen));
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/* ADC12138(config, m_adc12138_2, 0);
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@ -2,6 +2,60 @@
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// copyright-holders:Fabio Priuli,Acho A. Tang, R. Belmont
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/*
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Konami 037122
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This chip has CLUT, CRTC, Variable size single tilemap
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Color lookup table is 16 bit BRG format, total 8192 entries (256 color per each tile * 32 banks))
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Color format (4 byte (1x32bit word) per each color)
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Bits Description
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fedcba9876543210 fedcba9876543210
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---------------- xxxxx----------- Blue
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---------------- -----xxxxx------ Red
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---------------- ----------xxxxxx Green
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Tilemap is can be rotated, zoomed, similar as K053936 "simple mode"
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Tilemap size is 256x64 (2048x512 pixels) or 128x64 (1024x512 pixels), Each tile is 8bpp 8x8.
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Tile format (4 byte (1x32bit word) per each tile)
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Bits Description
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fedcba9876543210 fedcba9876543210
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--------x------- ---------------- Flip Y
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---------x------ ---------------- Flip X
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----------xxxxx- ---------------- CLUT Bank index (256 color granularity)
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---------------- --xxxxxxxxxxxxxx Tile code (from character RAM, 8x8 pixel granularity (128 byte))
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Other bits unknown
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Register map
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00-0f Display timing
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20-2f Scroll/ROZ register
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30-3f Control, etc
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Offset Bits Description
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fedcba9876543210 fedcba9876543210
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00 xxxxxxxxxxxxxxxx ---------------- Horizontal total pixels - 1
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---------------- xxxxxxxxxxxxxxxx Horizontal sync width - 1
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04 xxxxxxxxxxxxxxxx ---------------- Horizontal front porch - 5
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---------------- xxxxxxxxxxxxxxxx Horizontal back porch + 5
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08 xxxxxxxxxxxxxxxx ---------------- Vertical total pixels - 1
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---------------- xxxxxxxxxxxxxxxx Vertical sync width - 1
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0c xxxxxxxxxxxxxxxx ---------------- Vertical front porch + 1
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---------------- xxxxxxxxxxxxxxxx Vertical back porch - 2
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20 sxxxxxxxxxxxxxxx ---------------- X counter starting value (12.4 fixed point)
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---------------- sxxxxxxxxxxxxxxx Y counter starting value (12.4 fixed point)
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24 ---------------- sxxxxxxxxxxxxxxx amount to add to the Y counter after each line (4.12 fixed point)
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28 sxxxxxxxxxxxxxxx ---------------- amount to add to the X counter after each horizontal pixel (4.12 fixed point)
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30 ---------------x ---------------- VRAM mapping mode
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---------------0 ---------------- CLUT at 0x00000-0x08000, Display tilemap area at 0x08000-0x18000 (256x64)
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---------------1 ---------------- CLUT at 0x18000-0x20000, Display tilemap area at 0x00000-0x08000 (128x64)
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---------------- -------------xxx Character RAM bank
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Other bits/registers unknown, some registers are used
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TODO:
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- verify and implement scroll, ROZ, display timing registers
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- verify other unknown but used registers
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*/
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#include "emu.h"
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@ -11,6 +11,8 @@ class k037122_device : public device_t,
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public device_gfx_interface
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{
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public:
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static constexpr feature_type imperfect_features() { return feature::GRAPHICS; } // unimplemented tilemap ROZ, scroll registers
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k037122_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
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// configuration
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