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-rw-r--r--src/mess/drivers/junior.c261
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diff --git a/src/mess/drivers/junior.c b/src/mess/drivers/junior.c
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+/***************************************************************************
+
+ Elektor Junior
+
+ 17/07/2009 Skeleton driver.
+
+This is heavily based on the KIM-1, the keycodes and operation being
+identical.
+
+Pasting:
+ 0-F : as is
+ + (inc) : ^
+ AD : -
+ DA : =
+ GO : X
+
+(note: DA only works when addressing RAM)
+
+Test Paste:
+ =11^22^33^44^55^66^77^88^99^-0000
+ Now press up-arrow to confirm the data has been entered.
+
+****************************************************************************/
+
+#include "emu.h"
+#include "cpu/m6502/m6502.h"
+#include "machine/6532riot.h"
+#include "junior.lh"
+
+
+class junior_state : public driver_device
+{
+public:
+ junior_state(const machine_config &mconfig, device_type type, const char *tag)
+ : driver_device(mconfig, type, tag),
+ m_riot(*this, "riot")
+ { }
+
+ required_device<device_t> m_riot;
+ DECLARE_READ8_MEMBER(junior_riot_a_r);
+ DECLARE_READ8_MEMBER(junior_riot_b_r);
+ DECLARE_WRITE8_MEMBER(junior_riot_a_w);
+ DECLARE_WRITE8_MEMBER(junior_riot_b_w);
+ DECLARE_WRITE_LINE_MEMBER(junior_riot_irq);
+ UINT8 m_port_a;
+ UINT8 m_port_b;
+ UINT8 m_led_time[6];
+};
+
+
+
+
+static ADDRESS_MAP_START(junior_mem, AS_PROGRAM, 8, junior_state)
+ ADDRESS_MAP_GLOBAL_MASK(0x1FFF)
+ ADDRESS_MAP_UNMAP_HIGH
+ AM_RANGE(0x0000, 0x03ff) AM_RAM // 1K RAM
+ AM_RANGE(0x1a00, 0x1a7f) AM_RAM // 6532 RAM
+ AM_RANGE(0x1a80, 0x1aff) AM_DEVREADWRITE_LEGACY("riot", riot6532_r, riot6532_w)
+ AM_RANGE(0x1c00, 0x1fff) AM_ROM // Monitor
+ADDRESS_MAP_END
+
+
+static INPUT_CHANGED( junior_reset )
+{
+ if (newval == 0)
+ field.machine().firstcpu->reset();
+}
+
+
+/* Input ports */
+static INPUT_PORTS_START( junior )
+PORT_START("LINE0") /* IN0 keys row 0 */
+ PORT_BIT( 0x80, 0x00, IPT_UNUSED )
+ PORT_BIT( 0x40, 0x40, IPT_KEYBOARD ) PORT_NAME("0") PORT_CODE(KEYCODE_0) PORT_CHAR('0')
+ PORT_BIT( 0x20, 0x20, IPT_KEYBOARD ) PORT_NAME("1") PORT_CODE(KEYCODE_1) PORT_CHAR('1')
+ PORT_BIT( 0x10, 0x10, IPT_KEYBOARD ) PORT_NAME("2") PORT_CODE(KEYCODE_2) PORT_CHAR('2')
+ PORT_BIT( 0x08, 0x08, IPT_KEYBOARD ) PORT_NAME("3") PORT_CODE(KEYCODE_3) PORT_CHAR('3')
+ PORT_BIT( 0x04, 0x04, IPT_KEYBOARD ) PORT_NAME("4") PORT_CODE(KEYCODE_4) PORT_CHAR('4')
+ PORT_BIT( 0x02, 0x02, IPT_KEYBOARD ) PORT_NAME("5") PORT_CODE(KEYCODE_5) PORT_CHAR('5')
+ PORT_BIT( 0x01, 0x01, IPT_KEYBOARD ) PORT_NAME("6") PORT_CODE(KEYCODE_6) PORT_CHAR('6')
+
+ PORT_START("LINE1") /* IN1 keys row 1 */
+ PORT_BIT( 0x80, 0x00, IPT_UNUSED )
+ PORT_BIT( 0x40, 0x40, IPT_KEYBOARD ) PORT_NAME("7") PORT_CODE(KEYCODE_7) PORT_CHAR('7')
+ PORT_BIT( 0x20, 0x20, IPT_KEYBOARD ) PORT_NAME("8") PORT_CODE(KEYCODE_8) PORT_CHAR('8')
+ PORT_BIT( 0x10, 0x10, IPT_KEYBOARD ) PORT_NAME("9") PORT_CODE(KEYCODE_9) PORT_CHAR('9')
+ PORT_BIT( 0x08, 0x08, IPT_KEYBOARD ) PORT_NAME("A") PORT_CODE(KEYCODE_A) PORT_CHAR('A')
+ PORT_BIT( 0x04, 0x04, IPT_KEYBOARD ) PORT_NAME("B") PORT_CODE(KEYCODE_B) PORT_CHAR('B')
+ PORT_BIT( 0x02, 0x02, IPT_KEYBOARD ) PORT_NAME("C") PORT_CODE(KEYCODE_C) PORT_CHAR('C')
+ PORT_BIT( 0x01, 0x01, IPT_KEYBOARD ) PORT_NAME("D") PORT_CODE(KEYCODE_D) PORT_CHAR('D')
+
+ PORT_START("LINE2") /* IN2 keys row 2 */
+ PORT_BIT( 0x80, 0x00, IPT_UNUSED )
+ PORT_BIT( 0x40, 0x40, IPT_KEYBOARD ) PORT_NAME("E") PORT_CODE(KEYCODE_E) PORT_CHAR('E')
+ PORT_BIT( 0x20, 0x20, IPT_KEYBOARD ) PORT_NAME("F") PORT_CODE(KEYCODE_F) PORT_CHAR('F')
+ PORT_BIT( 0x10, 0x10, IPT_KEYBOARD ) PORT_NAME("AD") PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-')
+ PORT_BIT( 0x08, 0x08, IPT_KEYBOARD ) PORT_NAME("DA") PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('=')
+ PORT_BIT( 0x04, 0x04, IPT_KEYBOARD ) PORT_NAME("+") PORT_CODE(KEYCODE_UP) PORT_CHAR('^')
+ PORT_BIT( 0x02, 0x02, IPT_KEYBOARD ) PORT_NAME("GO") PORT_CODE(KEYCODE_X) PORT_CHAR('X')
+ PORT_BIT( 0x01, 0x01, IPT_KEYBOARD ) PORT_NAME("PC") PORT_CODE(KEYCODE_F6)
+
+ PORT_START("LINE3") /* IN3 STEP and RESET keys, MODE switch */
+ PORT_BIT( 0x80, 0x00, IPT_UNUSED )
+ PORT_BIT( 0x40, 0x40, IPT_KEYBOARD ) PORT_NAME("sw1: ST") PORT_CODE(KEYCODE_F7)
+ PORT_BIT( 0x20, 0x20, IPT_KEYBOARD ) PORT_NAME("sw2: RST") PORT_CODE(KEYCODE_F3) PORT_CHANGED(junior_reset, NULL)
+ PORT_DIPNAME(0x10, 0x10, "sw3: SS (NumLock)") PORT_CODE(KEYCODE_NUMLOCK) PORT_TOGGLE
+ PORT_DIPSETTING( 0x00, "single step")
+ PORT_DIPSETTING( 0x10, "run")
+ PORT_BIT( 0x08, 0x00, IPT_UNUSED )
+ PORT_BIT( 0x04, 0x00, IPT_UNUSED )
+ PORT_BIT( 0x02, 0x00, IPT_UNUSED )
+ PORT_BIT( 0x01, 0x00, IPT_UNUSED )
+INPUT_PORTS_END
+
+
+
+READ8_MEMBER( junior_state::junior_riot_a_r )
+{
+ UINT8 data = 0xff;
+
+ switch( ( m_port_b >> 1 ) & 0x0f )
+ {
+ case 0:
+ data = ioport("LINE0")->read();
+ break;
+ case 1:
+ data = ioport("LINE1")->read();
+ break;
+ case 2:
+ data = ioport("LINE2")->read();
+ break;
+ }
+ return data;
+
+}
+
+
+READ8_MEMBER( junior_state::junior_riot_b_r )
+{
+ if ( riot6532_portb_out_get(m_riot) & 0x20 )
+ return 0xFF;
+
+ return 0x7F;
+
+}
+
+
+WRITE8_MEMBER( junior_state::junior_riot_a_w )
+{
+ UINT8 idx = ( m_port_b >> 1 ) & 0x0f;
+
+ m_port_a = data;
+
+ if ((idx >= 4 && idx < 10) & ( m_port_a != 0xff ))
+ {
+ output_set_digit_value( idx-4, m_port_a ^ 0x7f );
+ m_led_time[idx - 4] = 10;
+ }
+}
+
+
+WRITE8_MEMBER( junior_state::junior_riot_b_w )
+{
+ UINT8 idx = ( data >> 1 ) & 0x0f;
+
+ m_port_b = data;
+
+ if ((idx >= 4 && idx < 10) & ( m_port_a != 0xff ))
+ {
+ output_set_digit_value( idx-4, m_port_a ^ 0x7f );
+ m_led_time[idx - 4] = 10;
+ }
+}
+
+
+WRITE_LINE_MEMBER( junior_state::junior_riot_irq )
+{
+ cputag_set_input_line(machine(), "maincpu", M6502_IRQ_LINE, state ? HOLD_LINE : CLEAR_LINE);
+}
+
+
+static const riot6532_interface junior_riot_interface =
+{
+ DEVCB_DRIVER_MEMBER(junior_state, junior_riot_a_r),
+ DEVCB_DRIVER_MEMBER(junior_state, junior_riot_b_r),
+ DEVCB_DRIVER_MEMBER(junior_state, junior_riot_a_w),
+ DEVCB_DRIVER_MEMBER(junior_state, junior_riot_b_w),
+ DEVCB_DRIVER_LINE_MEMBER(junior_state, junior_riot_irq)
+};
+
+
+static TIMER_DEVICE_CALLBACK( junior_update_leds )
+{
+ junior_state *state = timer.machine().driver_data<junior_state>();
+ int i;
+
+ for ( i = 0; i < 6; i++ )
+ {
+ if ( state->m_led_time[i] )
+ state->m_led_time[i]--;
+ else
+ output_set_digit_value( i, 0 );
+ }
+}
+
+
+static MACHINE_START( junior )
+{
+ junior_state *state = machine.driver_data<junior_state>();
+ state_save_register_item(machine, "junior", NULL, 0, state->m_port_a );
+ state_save_register_item(machine, "junior", NULL, 0, state->m_port_b );
+}
+
+
+static MACHINE_RESET(junior)
+{
+ junior_state *state = machine.driver_data<junior_state>();
+ int i;
+
+ for ( i = 0; i < 6; i++ )
+ state->m_led_time[i] = 0;
+}
+
+
+static MACHINE_CONFIG_START( junior, junior_state )
+ /* basic machine hardware */
+ MCFG_CPU_ADD("maincpu",M6502, XTAL_1MHz)
+ MCFG_CPU_PROGRAM_MAP(junior_mem)
+ MCFG_QUANTUM_TIME(attotime::from_hz(50))
+
+ MCFG_MACHINE_START( junior )
+ MCFG_MACHINE_RESET(junior)
+
+ /* video hardware */
+ MCFG_DEFAULT_LAYOUT( layout_junior )
+
+ /* Devices */
+ MCFG_RIOT6532_ADD("riot", XTAL_1MHz, junior_riot_interface)
+ MCFG_TIMER_ADD_PERIODIC("led_timer", junior_update_leds, attotime::from_hz(50))
+MACHINE_CONFIG_END
+
+
+/* ROM definition */
+ROM_START( junior )
+ ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF )
+ ROM_DEFAULT_BIOS("orig")
+
+ ROM_SYSTEM_BIOS( 0, "orig", "Original ESS503" )
+ ROMX_LOAD( "ess503.ic2", 0x1c00, 0x0400, CRC(9e804f8c) SHA1(181bdb69fb4711cb008e7966747d4775a5e3ef69), ROM_BIOS(1))
+
+ ROM_SYSTEM_BIOS( 1, "mod-orig", "Mod-Original (2708)" )
+ ROMX_LOAD( "junior-mod.ic2", 0x1c00, 0x0400, CRC(ee8aa69d) SHA1(a132a51603f1a841c354815e6d868b335ac84364), ROM_BIOS(2))
+
+ ROM_SYSTEM_BIOS( 2, "2732", "Just monitor (2732)" )
+ ROMX_LOAD( "junior27321a.ic2", 0x1c00, 0x0400, CRC(e22f24cc) SHA1(a6edb52a9eea5e99624c128065e748e5a3fb2e4c), ROM_BIOS(3))
+ROM_END
+
+/* Driver */
+
+/* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS */
+COMP( 1980, junior, 0, 0, junior, junior, driver_device, 0, "Elektor Electronics", "Junior Computer", GAME_SUPPORTS_SAVE | GAME_NO_SOUND_HW)