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New systems marked not working
------------------------------ B16 EX-II [Mike Stedman]
This commit is contained in:
angelosa
parent
31bec4a4a9
commit
857f41fe05
3 changed files with 90 additions and 31 deletions
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@ -1,20 +1,47 @@
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// license:BSD-3-Clause
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// copyright-holders:Angelo Salese
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/***************************************************************************
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// license: BSD-3-Clause
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// copyright-holders: Angelo Salese
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// thanks-to: Mike Stedman
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/**************************************************************************************************
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Hitachi B(asic Master?) 16
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Hitachi B(asic Master?) 16000 series?
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very preliminary driver by Angelo Salese
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TODO:
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- Barely anything is known about the HW
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- b16ex2: "error message 1101"
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TODO:
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- Driver is all made up of educated guesses (no documentation available)
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===================================================================================================
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0xfcc67 after the ROM checksum to zero (bp 0xfc153 -> SI = 0) -> system boots
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B16 EX-II PCB contents:
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****************************************************************************/
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TIM uPD8253C-5 @ 16B
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DMAC uPD8257C-5 @ 18B
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INTM / INTS 2x uPD8259AC @ 13D / 15D
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Labelless CRTC, Fujitsu 6845 package
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FDC is unpopulated on board, should be a 765 coupled with a SED9420C/AC
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BDC HN65013G025 @ 2A
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CAL HN6223S @ 12K - Near bus slots
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CA HN6022B @ 12L /
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MPX HG61H06R29F @ 9J
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RAC HN60236 - 81005V @ 9H
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A HN60230 - 81007V @ 9F
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PAC HG61H20B12F @ 9D
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DECO HG61H15B19F @ 11D
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KAM HN671105AU @ 16A
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DECI HG61H15B19F @ 2F
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VAP NEC uPD65030G035 @ 4K
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GN NEC uPD65021G030 @ 2K
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4x 32x3 slots, labeled SLOT0 to 3
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11 Jumpers "SH1"
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Several connectors scattered across the board
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Centronics port CN9, Serial port CN8
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2 empty sockets for CN10 / CN11 (DE-9 options?)
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**************************************************************************************************/
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#include "emu.h"
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#include "cpu/i86/i86.h"
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#include "cpu/i86/i286.h"
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#include "machine/am9517a.h"
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#include "video/mc6845.h"
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#include "emupal.h"
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@ -26,29 +53,33 @@ namespace {
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class b16_state : public driver_device
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{
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public:
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b16_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_vram(*this, "vram"),
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m_mc6845(*this, "crtc"),
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m_dma8237(*this, "8237dma"),
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m_maincpu(*this, "maincpu"),
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m_gfxdecode(*this, "gfxdecode"),
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m_palette(*this, "palette"),
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m_char_rom(*this, "pcg")
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b16_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_vram(*this, "vram")
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, m_mc6845(*this, "crtc")
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, m_dma8237(*this, "8237dma")
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, m_gfxdecode(*this, "gfxdecode")
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, m_palette(*this, "palette")
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, m_char_rom(*this, "pcg")
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{ }
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void b16(machine_config &config);
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void b16ex2(machine_config &config);
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protected:
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virtual void video_start() override;
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void b16_map(address_map &map);
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void b16_io(address_map &map);
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void b16ex2_map(address_map &map);
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private:
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uint8_t m_crtc_vreg[0x100]{}, m_crtc_index = 0;
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required_device<cpu_device> m_maincpu;
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required_shared_ptr<uint16_t> m_vram;
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required_device<mc6845_device> m_mc6845;
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required_device<am9517a_device> m_dma8237;
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required_device<cpu_device> m_maincpu;
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required_device<gfxdecode_device> m_gfxdecode;
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required_device<palette_device> m_palette;
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required_region_ptr<uint8_t> m_char_rom;
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@ -63,9 +94,6 @@ private:
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void memory_write_byte(offs_t offset, uint8_t data);
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uint32_t screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
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void b16_io(address_map &map);
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void b16_map(address_map &map);
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};
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#define mc6845_h_char_total (m_crtc_vreg[0])
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@ -135,6 +163,13 @@ void b16_state::b16_map(address_map &map)
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map(0xfc000, 0xfffff).rom().region("ipl", 0);
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}
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void b16_state::b16ex2_map(address_map &map)
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{
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b16_state::b16_map(map);
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map(0x0f8000, 0x0fffff).rom().region("ipl", 0);
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map(0xff8000, 0xffffff).rom().region("ipl", 0);
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}
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uint16_t b16_state::vblank_r()
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{
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return ioport("SYSTEM")->read();
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@ -270,7 +305,7 @@ void b16_state::memory_write_byte(offs_t offset, uint8_t data)
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void b16_state::b16(machine_config &config)
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{
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/* basic machine hardware */
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I8086(config, m_maincpu, XTAL(14'318'181)/2); //unknown xtal
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I8086(config, m_maincpu, XTAL(14'318'181)/2); // unknown xtal, should be 8088 for base machine?
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m_maincpu->set_addrmap(AS_PROGRAM, &b16_state::b16_map);
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m_maincpu->set_addrmap(AS_IO, &b16_state::b16_io);
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@ -297,7 +332,15 @@ void b16_state::b16(machine_config &config)
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// MCFG_PALETTE_INIT_STANDARD(black_and_white) // TODO
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}
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/* ROM definition */
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void b16_state::b16ex2(machine_config &config)
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{
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b16_state::b16(config);
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I80286(config.replace(), m_maincpu, XTAL(16'000'000) / 2); // A80286-8 / S
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m_maincpu->set_addrmap(AS_PROGRAM, &b16_state::b16ex2_map);
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m_maincpu->set_addrmap(AS_IO, &b16_state::b16_io);
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}
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ROM_START( b16 )
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ROM_REGION16_LE( 0x4000, "ipl", ROMREGION_ERASEFF )
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ROM_LOAD( "ipl.rom", 0x0000, 0x4000, CRC(7c1c93d5) SHA1(2a1e63a689c316ff836f21646166b38714a18e03) )
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@ -305,10 +348,26 @@ ROM_START( b16 )
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ROM_REGION( 0x4000/2, "pcg", ROMREGION_ERASE00 )
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ROM_END
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ROM_START( b16ex2 )
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ROM_REGION16_LE( 0x8000, "ipl", ROMREGION_ERASEFF )
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// M27128-L
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ROM_LOAD16_BYTE( "j4c-0072.4b", 0x0001, 0x4000, CRC(7f6e4143) SHA1(afe126639b7161562d93e955c1fc720a93e1596b))
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// M27128-H
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ROM_LOAD16_BYTE( "j5c-0072.6b", 0x0000, 0x4000, CRC(5f3c85ca) SHA1(4988d8e1e763268a62f2a86104db4d106babd242))
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ROM_REGION( 0x4000/2, "pcg", ROMREGION_ERASE00 )
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ROM_REGION( 0x40000, "kanji", ROMREGION_ERASE00 )
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// Both HN62301AP, sockets labeled "KANJI1" and "KANJI2"
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ROM_LOAD( "7l1.11f", 0x00000, 0x20000, NO_DUMP )
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ROM_LOAD( "7m1.12f", 0x20000, 0x20000, NO_DUMP )
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ROM_END
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} // anonymous namespace
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/* Driver */
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/* YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS */
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COMP( 1983, b16, 0, 0, b16, b16, b16_state, empty_init, "Hitachi", "B16", MACHINE_NOT_WORKING | MACHINE_NO_SOUND)
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// TODO: pinpoint MB SKU for both
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// Original would be MB-16001, flyer shows a "Basic Master" subtitle
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COMP( 1982?, b16, 0, 0, b16, b16, b16_state, empty_init, "Hitachi", "B16", MACHINE_NOT_WORKING | MACHINE_NO_SOUND )
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COMP( 1983?, b16ex2, 0, 0, b16ex2, b16, b16_state, empty_init, "Hitachi", "B16 EX-II", MACHINE_NOT_WORKING | MACHINE_NO_SOUND )
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// B16 EX-III known to exist
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@ -12,13 +12,12 @@ References:
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TODO:
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- keyboard break NMI (as per bmjr);
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- Move keyboard timer logic as 6845 hsync callback;
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- Cassette relay doesn't work properly, issuing a LOAD won't autostart a load;
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- Move keyboard timer logic as 6845 hsync callback, fix logic (would key repeat too fast);
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- Cassette baud rate bump (can switch from 600 to 1200 bauds thru $ffd7);
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- implement sound as a bus slot device;
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- implement RAM expansion as bus slots (RAM3 at 0x8000-0xbfff, RAM4 at 0xc000-0xefff);
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- bml3mk5: BANK REG $ffe8 (applies EMS for the RAM expansion?);
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- soft reset will hang the machine;
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- Cassettes requires manual press of play button when issuing a LOAD (verify);
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- Hitachi MB-S1 support (bumps memory map, adds an extra I/O layer);
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**************************************************************************************************/
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@ -19709,6 +19709,7 @@ smondial2 // 1989 Mephisto Super Mondial II
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@source:hitachi/b16.cpp
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b16 //
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b16ex2 //
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@source:hitachi/bmjr.cpp
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bmjr //
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