diff options
Diffstat (limited to 'src/mess/drivers/myb3k.c')
-rw-r--r-- | src/mess/drivers/myb3k.c | 286 |
1 files changed, 0 insertions, 286 deletions
diff --git a/src/mess/drivers/myb3k.c b/src/mess/drivers/myb3k.c deleted file mode 100644 index 96677868c1e..00000000000 --- a/src/mess/drivers/myb3k.c +++ /dev/null @@ -1,286 +0,0 @@ -// license:BSD-3-Clause -// copyright-holders:Angelo Salese -/*************************************************************************** - - Matsushita / Panasonic My Brain 3000 / JB-3000 - - preliminary driver by Angelo Salese - - TODO: - - needs a working floppy image, fdc probably needs IRQ / DRQ lines - hooked up. - -****************************************************************************/ - -#include "emu.h" -#include "cpu/i86/i86.h" -#include "video/mc6845.h" -#include "machine/wd_fdc.h" - -class myb3k_state : public driver_device -{ -public: - myb3k_state(const machine_config &mconfig, device_type type, const char *tag) - : driver_device(mconfig, type, tag), - m_maincpu(*this, "maincpu"), - m_fdc(*this, "fdc"), - m_crtc(*this, "crtc"), - m_floppy0(*this, "fdc:0:8dsdd"), - m_floppy1(*this, "fdc:1:8dsdd"), - m_p_vram(*this, "p_vram"), - m_palette(*this, "palette") { } - - required_device<cpu_device> m_maincpu; - required_device<mb8877_t> m_fdc; - required_device<mc6845_device> m_crtc; - required_device<floppy_image_device> m_floppy0; - required_device<floppy_image_device> m_floppy1; - DECLARE_WRITE8_MEMBER(myb3k_6845_address_w); - DECLARE_WRITE8_MEMBER(myb3k_6845_data_w); - DECLARE_WRITE8_MEMBER(myb3k_video_mode_w); - DECLARE_WRITE8_MEMBER(myb3k_fdc_output_w); - required_shared_ptr<UINT8> m_p_vram; - required_device<palette_device> m_palette; - UINT8 m_crtc_vreg[0x100],m_crtc_index; - UINT8 m_vmode; - virtual void machine_start(); - virtual void machine_reset(); - virtual void video_start(); - UINT32 screen_update_myb3k(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); -}; - -void myb3k_state::video_start() -{ -} - -#define mc6845_h_char_total (m_crtc_vreg[0]) -#define mc6845_h_display (m_crtc_vreg[1]) -#define mc6845_h_sync_pos (m_crtc_vreg[2]) -#define mc6845_sync_width (m_crtc_vreg[3]) -#define mc6845_v_char_total (m_crtc_vreg[4]) -#define mc6845_v_total_adj (m_crtc_vreg[5]) -#define mc6845_v_display (m_crtc_vreg[6]) -#define mc6845_v_sync_pos (m_crtc_vreg[7]) -#define mc6845_mode_ctrl (m_crtc_vreg[8]) -#define mc6845_tile_height (m_crtc_vreg[9]+1) -#define mc6845_cursor_y_start (m_crtc_vreg[0x0a]) -#define mc6845_cursor_y_end (m_crtc_vreg[0x0b]) -#define mc6845_start_addr (((m_crtc_vreg[0x0c]<<8) & 0x3f00) | (m_crtc_vreg[0x0d] & 0xff)) -#define mc6845_cursor_addr (((m_crtc_vreg[0x0e]<<8) & 0x3f00) | (m_crtc_vreg[0x0f] & 0xff)) -#define mc6845_light_pen_addr (((m_crtc_vreg[0x10]<<8) & 0x3f00) | (m_crtc_vreg[0x11] & 0xff)) -#define mc6845_update_addr (((m_crtc_vreg[0x12]<<8) & 0x3f00) | (m_crtc_vreg[0x13] & 0xff)) - - -UINT32 myb3k_state::screen_update_myb3k(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) -{ - int x,y; - int xi,yi; - int dot; - int h_step; - - h_step = 64 >> (m_vmode & 3); - - //popmessage("%02x %d",m_vmode,h_step); - - for(y=0;y<mc6845_v_display;y++) - { - for(x=0;x<mc6845_h_display;x++) - { - /* 8x8 grid gfxs, weird format too ... */ - for(yi=0;yi<mc6845_tile_height;yi++) - { - for(xi=0;xi<8;xi++) - { - dot = (m_p_vram[(x+y*mc6845_h_display)*h_step+yi+0x8000] >> (7-xi)) & 1; - if((yi & ~7 && (!(m_vmode & 4))) || (yi & ~0xf && (m_vmode & 4))) - dot = 0; - - if(y*mc6845_tile_height+yi < 200 && x*8+xi < 320) /* TODO: safety check */ - bitmap.pix16(y*mc6845_tile_height+yi, x*8+xi) = m_palette->pen(dot); - } - } - } - } - - return 0; -} - -WRITE8_MEMBER( myb3k_state::myb3k_6845_address_w ) -{ - m_crtc_index = data; - m_crtc->address_w(space, offset, data); -} - -WRITE8_MEMBER( myb3k_state::myb3k_6845_data_w ) -{ - m_crtc_vreg[m_crtc_index] = data; - m_crtc->register_w(space, offset, data); -} - -WRITE8_MEMBER( myb3k_state::myb3k_video_mode_w ) -{ - /* ---- -x-- interlace mode */ - /* ---- --xx horizontal step count (number of offsets of vram RAM data to skip, 64 >> n) */ - - m_vmode = data; - -} -WRITE8_MEMBER( myb3k_state::myb3k_fdc_output_w ) -{ - /* TODO: complete guesswork! (it just does a 0x24 -> 0x20 in there) */ - floppy_image_device *floppy = NULL; - - if (data & 1) floppy = m_floppy0; - if (data & 2) floppy = m_floppy1; - - if (floppy) - { - floppy->mon_w(!(data & 4) ? 1: 0); - floppy->ss_w((data & 0x10)>>4); - } -} - -static ADDRESS_MAP_START(myb3k_map, AS_PROGRAM, 8, myb3k_state) - ADDRESS_MAP_UNMAP_HIGH - AM_RANGE(0x00000,0x7ffff) AM_RAM - AM_RANGE(0x80000,0x8ffff) AM_NOP - AM_RANGE(0xd0000,0xdffff) AM_RAM AM_SHARE("p_vram") -// AM_RANGE(0xe0000,0xexxxx) option ROM board - AM_RANGE(0xfc000,0xfffff) AM_ROM AM_REGION("ipl", 0) -ADDRESS_MAP_END - -static ADDRESS_MAP_START(myb3k_io, AS_IO, 8, myb3k_state) - ADDRESS_MAP_UNMAP_LOW - AM_RANGE(0x01, 0x01) AM_READ_PORT("DSW1") - AM_RANGE(0x03, 0x03) AM_WRITENOP - AM_RANGE(0x04, 0x04) AM_WRITE(myb3k_video_mode_w) - AM_RANGE(0x06, 0x06) AM_READ_PORT("DSW2") - AM_RANGE(0x1c, 0x1c) AM_WRITE(myb3k_6845_address_w) - AM_RANGE(0x1d, 0x1d) AM_WRITE(myb3k_6845_data_w) - AM_RANGE(0x20, 0x23) AM_DEVREADWRITE("fdc", mb8877_t, read, write) //FDC, almost likely wd17xx - AM_RANGE(0x24, 0x24) AM_WRITE(myb3k_fdc_output_w) -// AM_RANGE(0x520,0x524) mirror of above -ADDRESS_MAP_END - -/* Input ports */ -static INPUT_PORTS_START( myb3k ) - PORT_START("DSW1") - PORT_DIPNAME( 0x01, 0x01, DEF_STR( Unknown ) ) - PORT_DIPSETTING( 0x01, DEF_STR( Off ) ) - PORT_DIPSETTING( 0x00, DEF_STR( On ) ) - PORT_DIPNAME( 0x02, 0x02, DEF_STR( Unknown ) ) - PORT_DIPSETTING( 0x02, DEF_STR( Off ) ) - PORT_DIPSETTING( 0x00, DEF_STR( On ) ) - PORT_DIPNAME( 0x04, 0x04, DEF_STR( Unknown ) ) // - these two plays with the video modes - PORT_DIPSETTING( 0x04, DEF_STR( Off ) ) - PORT_DIPSETTING( 0x00, DEF_STR( On ) ) - PORT_DIPNAME( 0x08, 0x08, DEF_STR( Unknown ) ) // / - PORT_DIPSETTING( 0x08, DEF_STR( Off ) ) - PORT_DIPSETTING( 0x00, DEF_STR( On ) ) - PORT_DIPNAME( 0x10, 0x10, DEF_STR( Unknown ) ) - PORT_DIPSETTING( 0x10, DEF_STR( Off ) ) - PORT_DIPSETTING( 0x00, DEF_STR( On ) ) - PORT_DIPNAME( 0x20, 0x20, DEF_STR( Unknown ) ) - PORT_DIPSETTING( 0x20, DEF_STR( Off ) ) - PORT_DIPSETTING( 0x00, DEF_STR( On ) ) - PORT_DIPNAME( 0x40, 0x40, DEF_STR( Unknown ) ) - PORT_DIPSETTING( 0x40, DEF_STR( Off ) ) - PORT_DIPSETTING( 0x00, DEF_STR( On ) ) - PORT_DIPNAME( 0x80, 0x00, "FDC mapping" ) - PORT_DIPSETTING( 0x80, "0x520-0x524 range" ) - PORT_DIPSETTING( 0x00, "0x20-0x24 range" ) - PORT_START("DSW2") - PORT_DIPNAME( 0x01, 0x01, "ROM information" ) - PORT_DIPSETTING( 0x01, DEF_STR( Off ) ) - PORT_DIPSETTING( 0x00, DEF_STR( On ) ) - PORT_DIPNAME( 0x02, 0x02, DEF_STR( Unknown ) ) - PORT_DIPSETTING( 0x02, DEF_STR( Off ) ) - PORT_DIPSETTING( 0x00, DEF_STR( On ) ) - PORT_DIPNAME( 0x04, 0x04, DEF_STR( Unknown ) ) - PORT_DIPSETTING( 0x04, DEF_STR( Off ) ) - PORT_DIPSETTING( 0x00, DEF_STR( On ) ) - PORT_DIPNAME( 0x08, 0x08, DEF_STR( Unknown ) ) - PORT_DIPSETTING( 0x08, DEF_STR( Off ) ) - PORT_DIPSETTING( 0x00, DEF_STR( On ) ) - PORT_DIPNAME( 0x10, 0x10, DEF_STR( Unknown ) ) - PORT_DIPSETTING( 0x10, DEF_STR( Off ) ) - PORT_DIPSETTING( 0x00, DEF_STR( On ) ) - PORT_DIPNAME( 0x20, 0x20, DEF_STR( Unknown ) ) - PORT_DIPSETTING( 0x20, DEF_STR( Off ) ) - PORT_DIPSETTING( 0x00, DEF_STR( On ) ) - PORT_DIPNAME( 0x40, 0x40, DEF_STR( Unknown ) ) - PORT_DIPSETTING( 0x40, DEF_STR( Off ) ) - PORT_DIPSETTING( 0x00, DEF_STR( On ) ) - PORT_DIPNAME( 0x80, 0x00, DEF_STR( Unknown ) ) - PORT_DIPSETTING( 0x80, DEF_STR( Off ) ) - PORT_DIPSETTING( 0x00, DEF_STR( On ) ) -INPUT_PORTS_END - - -void myb3k_state::machine_start() -{ -} - -void myb3k_state::machine_reset() -{ -} - - -static const gfx_layout myb3k_charlayout = -{ - 8, 8, - 0x400, - 1, - { 0 }, - { STEP8(0,1) }, - { STEP8(0,8) }, - 8*8 -}; - -static GFXDECODE_START( myb3k ) - GFXDECODE_ENTRY( "ipl", 0x0000, myb3k_charlayout, 0, 1 ) -GFXDECODE_END - -static SLOT_INTERFACE_START( myb3k_floppies ) - SLOT_INTERFACE( "525sssd", FLOPPY_525_SSSD ) - SLOT_INTERFACE( "8dsdd", FLOPPY_8_DSDD ) -SLOT_INTERFACE_END - -static MACHINE_CONFIG_START( myb3k, myb3k_state ) - /* basic machine hardware */ - MCFG_CPU_ADD("maincpu", I8088, 4000000) /* unknown clock*/ - MCFG_CPU_PROGRAM_MAP(myb3k_map) - MCFG_CPU_IO_MAP(myb3k_io) - - /* video hardware */ - MCFG_SCREEN_ADD("screen", RASTER) - MCFG_SCREEN_REFRESH_RATE(50) - MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500)) /* not accurate */ - MCFG_SCREEN_SIZE(320, 200) - MCFG_SCREEN_VISIBLE_AREA(0, 320-1, 0, 200-1) - MCFG_SCREEN_UPDATE_DRIVER(myb3k_state, screen_update_myb3k) - MCFG_SCREEN_PALETTE("palette") - - MCFG_GFXDECODE_ADD("gfxdecode", "palette", myb3k) - MCFG_PALETTE_ADD_BLACK_AND_WHITE("palette") - - /* devices */ - MCFG_MC6845_ADD("crtc", H46505, "screen", XTAL_3_579545MHz/4) /* unknown clock, hand tuned to get ~60 fps */ - MCFG_MC6845_SHOW_BORDER_AREA(false) - MCFG_MC6845_CHAR_WIDTH(8) - - MCFG_DEVICE_ADD("fdc", MB8877, 2000000) // unknown type - MCFG_FLOPPY_DRIVE_ADD("fdc:0", myb3k_floppies, "8dsdd", floppy_image_device::default_floppy_formats) - MCFG_FLOPPY_DRIVE_ADD("fdc:1", myb3k_floppies, "8dsdd", floppy_image_device::default_floppy_formats) -MACHINE_CONFIG_END - -/* ROM definition */ -ROM_START( myb3k ) - ROM_REGION( 0x4000, "ipl", ROMREGION_ERASEFF ) - ROM_LOAD( "ipl.rom", 0x0000, 0x4000, CRC(64a864a1) SHA1(d3ccfd28f2938e71a26ae5a0085439a3265f60bf)) -ROM_END - -/* Driver */ - -/* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS */ -COMP( 1982, myb3k, 0, 0, myb3k, myb3k, driver_device, 0, "Panasonic", "MyBrain 3000", MACHINE_NOT_WORKING | MACHINE_NO_SOUND) |