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Diffstat (limited to 'src/mame/drivers/bob85.c')
-rw-r--r--src/mame/drivers/bob85.c226
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diff --git a/src/mame/drivers/bob85.c b/src/mame/drivers/bob85.c
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+++ b/src/mame/drivers/bob85.c
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+// 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)