diff options
Diffstat (limited to 'src/mame/drivers/bob85.cpp')
-rw-r--r-- | src/mame/drivers/bob85.cpp | 226 |
1 files changed, 226 insertions, 0 deletions
diff --git a/src/mame/drivers/bob85.cpp b/src/mame/drivers/bob85.cpp new file mode 100644 index 00000000000..ce09e503fc3 --- /dev/null +++ b/src/mame/drivers/bob85.cpp @@ -0,0 +1,226 @@ +// license:BSD-3-Clause +// copyright-holders:Miodrag Milanovic +/*************************************************************************** + + BOB85 driver by Miodrag Milanovic + + 2008-05-24 Preliminary driver. + 2009-05-12 Skeleton driver. + 2013-06-02 Working driver. + +Pasting: + 0-F : as is + NEXT : ^ + SMEM : - + GO : X + +Test Paste: + -0600^11^22^33^44^55^66^77^88^99^--0600^ + Now press up-arrow to confirm the data has been entered. + + +****************************************************************************/ + +#include "emu.h" +#include "cpu/i8085/i8085.h" +#include "imagedev/cassette.h" +#include "bob85.lh" + + +class bob85_state : public driver_device +{ +public: + bob85_state(const machine_config &mconfig, device_type type, const char *tag) + : driver_device(mconfig, type, tag), + m_maincpu(*this, "maincpu"), + m_cass(*this, "cassette"), + m_line0(*this, "LINE0"), + m_line1(*this, "LINE1"), + m_line2(*this, "LINE2") { } + + required_device<cpu_device> m_maincpu; + required_device<cassette_image_device> m_cass; + DECLARE_READ8_MEMBER(bob85_keyboard_r); + DECLARE_WRITE8_MEMBER(bob85_7seg_w); + DECLARE_WRITE_LINE_MEMBER(sod_w); + DECLARE_READ_LINE_MEMBER(sid_r); + UINT8 m_prev_key; + UINT8 m_count_key; + virtual void machine_reset(); + +protected: + required_ioport m_line0; + required_ioport m_line1; + required_ioport m_line2; +}; + + + +READ8_MEMBER(bob85_state::bob85_keyboard_r) +{ + UINT8 retVal = 0; + UINT8 line0 = m_line0->read(); + UINT8 line1 = m_line1->read(); + UINT8 line2 = m_line2->read(); + + if (line0) + { + switch(line0) + { + case 0x01 : retVal = 0x80; break; + case 0x02 : retVal = 0x81; break; + case 0x04 : retVal = 0x82; break; + case 0x08 : retVal = 0x83; break; + case 0x10 : retVal = 0x84; break; + case 0x20 : retVal = 0x85; break; + case 0x40 : retVal = 0x86; break; + case 0x80 : retVal = 0x87; break; + default : break; + } + } + + if (line1) + { + switch(line1) + { + case 0x01 : retVal = 0x88; break; + case 0x02 : retVal = 0x89; break; + case 0x04 : retVal = 0x8A; break; + case 0x08 : retVal = 0x8B; break; + case 0x10 : retVal = 0x8C; break; + case 0x20 : retVal = 0x8D; break; + case 0x40 : retVal = 0x8E; break; + case 0x80 : retVal = 0x8F; break; + default : break; + } + } + + if (line2) + { + switch(line2) + { + case 0x01 : retVal |= 0x90; break; + case 0x02 : retVal |= 0xA0; break; + case 0x04 : retVal |= 0xB0; break; + case 0x08 : retVal |= 0xC0; break; + case 0x10 : retVal |= 0xD0; break; + case 0x20 : retVal |= 0xE0; break; + default : break; + } + } + + if (retVal != m_prev_key) + { + m_prev_key = retVal; + m_count_key = 0; + return retVal; + } + else + { + if (m_count_key <1) + { + m_count_key++; + return retVal; + } + else + return 0; + } + + if (retVal == 0) + { + m_prev_key = 0; + m_count_key = 0; + } + + return retVal; +} + +WRITE8_MEMBER(bob85_state::bob85_7seg_w) +{ + output_set_digit_value(offset, BITSWAP8( data,3,2,1,0,7,6,5,4 )); +} + +static ADDRESS_MAP_START( bob85_mem, AS_PROGRAM, 8, bob85_state ) + ADDRESS_MAP_UNMAP_HIGH + AM_RANGE(0x0000, 0x02ff) AM_ROM + AM_RANGE(0x0600, 0x09ff) AM_RAM +ADDRESS_MAP_END + +static ADDRESS_MAP_START( bob85_io, AS_IO, 8, bob85_state ) + ADDRESS_MAP_UNMAP_HIGH + AM_RANGE(0x0a, 0x0a) AM_READ(bob85_keyboard_r) + AM_RANGE(0x0a, 0x0f) AM_WRITE(bob85_7seg_w) +ADDRESS_MAP_END + +/* Input ports */ +static INPUT_PORTS_START( bob85 ) + PORT_START("LINE0") + PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_0) PORT_CHAR('0') + PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_1) PORT_CHAR('1') + PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_2) PORT_CHAR('2') + PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_3) PORT_CHAR('3') + PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_4) PORT_CHAR('4') + PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_5) PORT_CHAR('5') + PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_6) PORT_CHAR('6') + PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_7) PORT_CHAR('7') + + PORT_START("LINE1") + PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_8) PORT_CHAR('8') + PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_9) PORT_CHAR('9') + PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_A) PORT_CHAR('A') + PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_B) PORT_CHAR('B') + PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_C) PORT_CHAR('C') + PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_D) PORT_CHAR('D') + PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_E) PORT_CHAR('E') + PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_F) PORT_CHAR('F') + + PORT_START("LINE2") + PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("GO") PORT_CODE(KEYCODE_X) PORT_CHAR('X') + PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("SMEM") PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') + PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("REC") PORT_CODE(KEYCODE_R) PORT_CHAR('R') + PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("VEK1") PORT_CODE(KEYCODE_Q) PORT_CHAR('Q') + PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("VEK2") PORT_CODE(KEYCODE_W) PORT_CHAR('W') + PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("NEXT") PORT_CODE(KEYCODE_UP) PORT_CHAR('^') + PORT_BIT(0xC0, IP_ACTIVE_HIGH, IPT_UNUSED) +INPUT_PORTS_END + +void bob85_state::machine_reset() +{ +} + +WRITE_LINE_MEMBER( bob85_state::sod_w ) +{ + m_cass->output(state ? +1.0 : -1.0); +} + +READ_LINE_MEMBER( bob85_state::sid_r ) +{ + return m_cass->input() > 0.0; +} + +static MACHINE_CONFIG_START( bob85, bob85_state ) + /* basic machine hardware */ + MCFG_CPU_ADD("maincpu", I8085A, XTAL_5MHz) + MCFG_CPU_PROGRAM_MAP(bob85_mem) + MCFG_CPU_IO_MAP(bob85_io) + MCFG_I8085A_SID(READLINE(bob85_state, sid_r)) + MCFG_I8085A_SOD(WRITELINE(bob85_state, sod_w)) + + /* video hardware */ + MCFG_DEFAULT_LAYOUT(layout_bob85) + + // devices + MCFG_CASSETTE_ADD("cassette") + MCFG_CASSETTE_DEFAULT_STATE(CASSETTE_STOPPED | CASSETTE_MOTOR_ENABLED | CASSETTE_SPEAKER_MUTED) +MACHINE_CONFIG_END + +/* ROM definition */ +ROM_START( bob85 ) + ROM_REGION( 0x600, "maincpu", ROMREGION_ERASEFF ) + ROM_LOAD( "bob85.rom", 0x0000, 0x0300, BAD_DUMP CRC(adde33a8) SHA1(00f26dd0c52005e7705e6cc9cb11a20e572682c6) ) // should be 6 separate 74S287's (256x4) +ROM_END + +/* Driver */ + +/* YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS */ +COMP( 1984, bob85, 0, 0, bob85, bob85, driver_device, 0, "Josef Kratochvil", "BOB-85", MACHINE_NO_SOUND_HW) |