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Diffstat (limited to 'src/mame/drivers/jonos.cpp')
-rw-r--r-- | src/mame/drivers/jonos.cpp | 216 |
1 files changed, 0 insertions, 216 deletions
diff --git a/src/mame/drivers/jonos.cpp b/src/mame/drivers/jonos.cpp deleted file mode 100644 index 92a767ec09d..00000000000 --- a/src/mame/drivers/jonos.cpp +++ /dev/null @@ -1,216 +0,0 @@ -// license:BSD-3-Clause -// copyright-holders:Robbbert -/*************************************************************************** - -Jonos Escort - -2013-09-12 Skeleton driver - -It seems there were about 6 models of Escort, mostly Z-80A based running -CP/M. However, this one appears to be an 8085-based terminal. - -Haven't found any info. - -There are interrupt handlers at 5.5 (0x002c) and 6.5 (0x0034). - - -****************************************************************************/ - -#include "emu.h" -#include "cpu/i8085/i8085.h" -#include "machine/keyboard.h" -#include "emupal.h" -#include "screen.h" - - -class jonos_state : public driver_device -{ -public: - jonos_state(const machine_config &mconfig, device_type type, const char *tag) - : driver_device(mconfig, type, tag) - , m_maincpu(*this, "maincpu") - , m_p_videoram(*this, "videoram") - , m_p_chargen(*this, "chargen") - { } - - void jonos(machine_config &config); - -private: - DECLARE_READ8_MEMBER(keyboard_r); - DECLARE_WRITE8_MEMBER(cursor_w); - u32 screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); - void kbd_put(u8 data); - - void jonos_mem(address_map &map); - - u8 m_framecnt; - u8 m_term_data; - u8 m_curs_ctrl; - u16 m_curs_pos; - virtual void machine_reset() override; - required_device<cpu_device> m_maincpu; - required_shared_ptr<u8> m_p_videoram; - required_region_ptr<u8> m_p_chargen; -}; - - - -void jonos_state::jonos_mem(address_map &map) -{ - map.unmap_value_high(); - map(0x0000, 0x0fff).rom().region("roms", 0); - map(0x1800, 0x27ff).ram().share("videoram"); - map(0x3000, 0x3001).w(FUNC(jonos_state::cursor_w)); // unknown device - map(0x4000, 0x4001); // unknown device - map(0x5000, 0x5003).r(FUNC(jonos_state::keyboard_r)); // unknown device - map(0x6000, 0x6001); // unknown device -} - -/* Input ports */ -static INPUT_PORTS_START( jonos ) -INPUT_PORTS_END - -void jonos_state::kbd_put(u8 data) -{ - m_term_data = data; -} - -READ8_MEMBER( jonos_state::keyboard_r ) -{ - if (offset == 0) - { - u8 data = m_term_data; - m_term_data = 0; - return data; - } - else - if (m_term_data && offset == 2) - return 0x20; - - return 0; -} - -WRITE8_MEMBER( jonos_state::cursor_w ) -{ - if (offset == 1) // control byte - m_curs_ctrl = (data == 0x80) ? 1 : 0; - else - if (m_curs_ctrl == 1) - { - m_curs_pos = (m_curs_pos & 0xff00) | data; - m_curs_ctrl++; - } - else - if (m_curs_ctrl == 2) - m_curs_pos = (m_curs_pos & 0xff) | (data << 8); -} - -void jonos_state::machine_reset() -{ - m_curs_ctrl = 0; - m_curs_pos = 0; - m_term_data = 0; -} - -uint32_t jonos_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) -{ - m_framecnt++; - u8 y,ra,chr,gfx,inv; - u16 sy=0,x; - u16 ma = (m_p_videoram[0x7da] + (m_p_videoram[0x7db] << 8)) & 0x7ff; - - for (y = 0; y < 24; y++) - { - for (ra = 0; ra < 12; ra++) - { - u16 *p = &bitmap.pix16(sy++); - u16 cpos = y << 8; - - for (x = ma; x < ma + 80; x++) - { - chr = m_p_videoram[x]; - inv = (BIT(chr, 7) ^ ((cpos == m_curs_pos) && BIT(m_framecnt, 5))) ? 0xff : 0; - chr &= 0x7f; - - if (ra < 8) - gfx = m_p_chargen[(chr<<3) | ra ] ^ inv; - else - gfx = m_p_chargen[(chr<<3) | (ra&7) | 0x400] ^ inv; - - /* Display a scanline of a character */ - *p++ = BIT(gfx, 0); - *p++ = BIT(gfx, 1); - *p++ = BIT(gfx, 2); - *p++ = BIT(gfx, 3); - *p++ = BIT(gfx, 4); - *p++ = BIT(gfx, 5); - *p++ = BIT(gfx, 6); - *p++ = BIT(gfx, 7); - cpos++; - } - } - ma+=80; - if (ma > 0x77f) - ma -= 0x780; - } - return 0; -} - -/* F4 Character Displayer */ -static const gfx_layout jonos_charlayout = -{ - 8, 12, /* 8 x 12 characters */ - 128, /* 128 characters */ - 1, /* 1 bits per pixel */ - { 0 }, /* no bitplanes */ - /* x offsets */ - { 7, 6, 5, 4, 3, 2, 1, 0 }, - /* y offsets */ - { 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8, 1024*8, 1025*8, 1026*8, 1027*8 }, - 8*8 /* every char takes 8 bytes */ -}; - -static GFXDECODE_START( gfx_jonos ) - GFXDECODE_ENTRY( "chargen", 0x0000, jonos_charlayout, 0, 1 ) -GFXDECODE_END - - -void jonos_state::jonos(machine_config &config) -{ - /* basic machine hardware */ - I8085A(config, m_maincpu, XTAL(16'000'000) / 4); - m_maincpu->set_addrmap(AS_PROGRAM, &jonos_state::jonos_mem); - - /* video hardware */ - screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER)); - screen.set_refresh_hz(60); - screen.set_vblank_time(ATTOSECONDS_IN_USEC(2500)); /* not accurate */ - screen.set_screen_update(FUNC(jonos_state::screen_update)); - screen.set_size(640, 288); - screen.set_visarea(0, 639, 0, 287); - screen.set_palette("palette"); - - GFXDECODE(config, "gfxdecode", "palette", gfx_jonos); - PALETTE(config, "palette", palette_device::MONOCHROME); - - generic_keyboard_device &keyboard(GENERIC_KEYBOARD(config, "keyboard", 0)); - keyboard.set_keyboard_callback(FUNC(jonos_state::kbd_put)); -} - - -/* ROM definition */ -ROM_START( jonos ) - ROM_REGION( 0x1000, "roms", 0 ) - ROM_LOAD( "jocrts04.rom", 0x0000, 0x1000, CRC(6a3d4048) SHA1(bdb0bc2c8c4e54261376e4ea3c2827d00d3d89bc) ) - - ROM_REGION( 0x0800, "user1", 0 ) // Z80 code for serial & parallel ports - ROM_LOAD( "joz80.rom", 0x0000, 0x0800, CRC(de1e8998) SHA1(270df08caf30cc8f18e740ef05dc8727a925a5da) ) - - ROM_REGION( 0x0800, "chargen", 0 ) - ROM_LOAD( "jochset0.rom", 0x0000, 0x0800, CRC(1d8e9640) SHA1(74f3604acc71f9bc1e1f9479f6438feda79293a2) ) -ROM_END - -/* Driver */ - -// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS -COMP( 198?, jonos, 0, 0, jonos, jonos, jonos_state, empty_init, "Jonos", "Escort", MACHINE_NOT_WORKING | MACHINE_NO_SOUND) |