// license:BSD-3-Clause // copyright-holders:Miodrag Milanovic, Robbbert /*************************************************************************** EC-65 16/07/2009 Initial driver. ****************************************************************************/ #include "emu.h" #include "cpu/m6502/m6502.h" #include "cpu/g65816/g65816.h" #include "video/mc6845.h" #include "machine/6821pia.h" #include "machine/6522via.h" #include "machine/mos6551.h" #include "machine/6850acia.h" #include "machine/keyboard.h" #define PIA6821_TAG "pia6821" #define ACIA6850_TAG "acia6850" #define ACIA6551_TAG "acia6551" #define VIA6522_0_TAG "via6522_0" #define VIA6522_1_TAG "via6522_1" #define MC6845_TAG "mc6845" #define KEYBOARD_TAG "keyboard" class ec65_state : public driver_device { public: ec65_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag), m_via_0(*this, VIA6522_0_TAG), m_via_1(*this, VIA6522_1_TAG), m_p_videoram(*this, "videoram"), m_maincpu(*this, "maincpu"), m_palette(*this, "palette") { } DECLARE_WRITE8_MEMBER(kbd_put); MC6845_UPDATE_ROW(crtc_update_row); UINT8 *m_p_chargen; required_device m_via_0; required_device m_via_1; required_shared_ptr m_p_videoram; virtual void machine_reset() override; virtual void video_start() override; required_device m_maincpu; required_device m_palette; }; class ec65k_state : public driver_device { public: ec65k_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag) { } }; static ADDRESS_MAP_START(ec65_mem, AS_PROGRAM, 8, ec65_state) ADDRESS_MAP_UNMAP_HIGH AM_RANGE(0x0000, 0xdfff) AM_RAM AM_RANGE(0xe000, 0xe003) AM_DEVREADWRITE(PIA6821_TAG, pia6821_device, read, write) AM_RANGE(0xe010, 0xe010) AM_DEVREADWRITE(ACIA6850_TAG, acia6850_device, status_r, control_w) AM_RANGE(0xe011, 0xe011) AM_DEVREADWRITE(ACIA6850_TAG, acia6850_device, data_r, data_w) AM_RANGE(0xe100, 0xe10f) AM_DEVREADWRITE(VIA6522_0_TAG, via6522_device, read, write) AM_RANGE(0xe110, 0xe11f) AM_DEVREADWRITE(VIA6522_1_TAG, via6522_device, read, write) AM_RANGE(0xe130, 0xe133) AM_DEVREADWRITE(ACIA6551_TAG, mos6551_device, read, write) AM_RANGE(0xe140, 0xe140) AM_DEVWRITE(MC6845_TAG, mc6845_device, address_w) AM_RANGE(0xe141, 0xe141) AM_DEVREADWRITE(MC6845_TAG, mc6845_device, register_r , register_w) AM_RANGE(0xe400, 0xe7ff) AM_RAM // 1KB on-board RAM AM_RANGE(0xe800, 0xefff) AM_RAM AM_SHARE("videoram") AM_RANGE(0xf000, 0xffff) AM_ROM ADDRESS_MAP_END static ADDRESS_MAP_START(ec65k_mem, AS_PROGRAM, 8, ec65_state) ADDRESS_MAP_UNMAP_HIGH AM_RANGE(0x0000, 0xe7ff) AM_RAM AM_RANGE(0xe800, 0xefff) AM_RAM AM_SHARE("videoram") AM_RANGE(0xf000, 0xffff) AM_ROM ADDRESS_MAP_END /* Input ports */ static INPUT_PORTS_START( ec65 ) INPUT_PORTS_END WRITE8_MEMBER( ec65_state::kbd_put ) { if (data) { m_via_0->write_pa0((data>>0)&1); m_via_0->write_pa1((data>>1)&1); m_via_0->write_pa2((data>>2)&1); m_via_0->write_pa3((data>>3)&1); m_via_0->write_pa4((data>>4)&1); m_via_0->write_pa5((data>>5)&1); m_via_0->write_pa6((data>>6)&1); m_via_0->write_pa7((data>>7)&1); m_via_0->write_ca1(1); m_via_0->write_ca1(0); } } void ec65_state::machine_reset() { m_via_1->write_pb0(1); m_via_1->write_pb1(1); m_via_1->write_pb2(1); m_via_1->write_pb3(1); m_via_1->write_pb4(1); m_via_1->write_pb5(1); m_via_1->write_pb6(1); m_via_1->write_pb7(1); } void ec65_state::video_start() { m_p_chargen = memregion("chargen")->base(); } MC6845_UPDATE_ROW( ec65_state::crtc_update_row ) { const rgb_t *palette = m_palette->palette()->entry_list_raw(); UINT8 chr,gfx,inv; UINT16 mem,x; UINT32 *p = &bitmap.pix32(y); for (x = 0; x < x_count; x++) { inv = (x == cursor_x) ? 0xff : 0; mem = (ma + x) & 0x7ff; chr = m_p_videoram[mem]; /* get pattern of pixels for that character scanline */ gfx = m_p_chargen[(chr<<4) | (ra & 0x0f)] ^ inv; /* Display a scanline of a character */ *p++ = palette[BIT(gfx, 7)]; *p++ = palette[BIT(gfx, 6)]; *p++ = palette[BIT(gfx, 5)]; *p++ = palette[BIT(gfx, 4)]; *p++ = palette[BIT(gfx, 3)]; *p++ = palette[BIT(gfx, 2)]; *p++ = palette[BIT(gfx, 1)]; *p++ = palette[BIT(gfx, 0)]; } } /* F4 Character Displayer */ static const gfx_layout ec65_charlayout = { 8, 8, /* 8 x 8 characters */ 256, /* 256 characters */ 1, /* 1 bits per pixel */ { 0 }, /* no bitplanes */ /* x offsets */ { 0, 1, 2, 3, 4, 5, 6, 7 }, /* y offsets */ { 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8 }, 8*16 /* every char takes 16 bytes */ }; static GFXDECODE_START( ec65 ) GFXDECODE_ENTRY( "chargen", 0x0000, ec65_charlayout, 0, 1 ) GFXDECODE_END static MACHINE_CONFIG_START( ec65, ec65_state ) /* basic machine hardware */ MCFG_CPU_ADD("maincpu",M6502, XTAL_4MHz / 4) MCFG_CPU_PROGRAM_MAP(ec65_mem) /* video hardware */ MCFG_SCREEN_ADD("screen", RASTER) MCFG_SCREEN_REFRESH_RATE(60) MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500)) /* not accurate */ MCFG_SCREEN_SIZE(640, 200) MCFG_SCREEN_VISIBLE_AREA(0, 640 - 1, 0, 200 - 1) MCFG_SCREEN_UPDATE_DEVICE(MC6845_TAG, mc6845_device, screen_update) MCFG_GFXDECODE_ADD("gfxdecode", "palette", ec65) MCFG_PALETTE_ADD_MONOCHROME("palette") MCFG_MC6845_ADD(MC6845_TAG, MC6845, "screen", XTAL_16MHz / 8) MCFG_MC6845_SHOW_BORDER_AREA(false) MCFG_MC6845_CHAR_WIDTH(8) /*?*/ MCFG_MC6845_UPDATE_ROW_CB(ec65_state, crtc_update_row) /* devices */ MCFG_DEVICE_ADD(PIA6821_TAG, PIA6821, 0) MCFG_DEVICE_ADD(ACIA6850_TAG, ACIA6850, 0) MCFG_DEVICE_ADD(VIA6522_0_TAG, VIA6522, XTAL_4MHz / 4) MCFG_DEVICE_ADD(VIA6522_1_TAG, VIA6522, XTAL_4MHz / 4) MCFG_DEVICE_ADD(ACIA6551_TAG, MOS6551, 0) MCFG_MOS6551_XTAL(XTAL_1_8432MHz) MCFG_DEVICE_ADD(KEYBOARD_TAG, GENERIC_KEYBOARD, 0) MCFG_GENERIC_KEYBOARD_CB(WRITE8(ec65_state, kbd_put)) MACHINE_CONFIG_END static MACHINE_CONFIG_START( ec65k, ec65k_state ) /* basic machine hardware */ MCFG_CPU_ADD("maincpu",G65816, XTAL_4MHz) // can use 4,2 or 1 MHz MCFG_CPU_PROGRAM_MAP(ec65k_mem) /* video hardware */ MCFG_SCREEN_ADD("screen", RASTER) MCFG_SCREEN_REFRESH_RATE(60) MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500)) /* not accurate */ MCFG_SCREEN_SIZE(640, 200) MCFG_SCREEN_VISIBLE_AREA(0, 640 - 1, 0, 200 - 1) MCFG_SCREEN_UPDATE_DEVICE(MC6845_TAG, mc6845_device, screen_update) MCFG_GFXDECODE_ADD("gfxdecode", "palette", ec65) MCFG_PALETTE_ADD_MONOCHROME("palette") MCFG_MC6845_ADD(MC6845_TAG, MC6845, "screen", XTAL_16MHz / 8) MCFG_MC6845_SHOW_BORDER_AREA(false) MCFG_MC6845_CHAR_WIDTH(8) /*?*/ MACHINE_CONFIG_END /* ROM definition */ ROM_START( ec65 ) ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF ) ROM_LOAD( "ec65.ic6", 0xf000, 0x1000, CRC(acd928ed) SHA1(e02a688a057ff77294717cf7b887425fed0b1153)) ROM_REGION( 0x1000, "chargen", 0 ) ROM_LOAD( "chargen.ic19", 0x0000, 0x1000, CRC(9b56a28d) SHA1(41c04fd9fb542c50287bc0e366358a61fc4b0cd4)) // Located on VDU card ROM_END ROM_START( ec65k ) ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF ) ROM_LOAD( "ec65k.ic19", 0xf000, 0x1000, CRC(5e5a890a) SHA1(daa006f2179fd156833e11c73b37881cafe5dede)) ROM_REGION( 0x1000, "chargen", 0 ) ROM_LOAD( "chargen.ic19", 0x0000, 0x1000, CRC(9b56a28d) SHA1(41c04fd9fb542c50287bc0e366358a61fc4b0cd4)) // Located on VDU card ROM_END /* Driver */ /* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS */ COMP( 1985, ec65, 0, 0, ec65, ec65, driver_device, 0, "Elektor Electronics", "EC-65", MACHINE_NOT_WORKING | MACHINE_NO_SOUND) COMP( 1985, ec65k, ec65, 0, ec65k, ec65, driver_device, 0, "Elektor Electronics", "EC-65K", MACHINE_NOT_WORKING | MACHINE_NO_SOUND)