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fidelz80: dsc WIP (nw)

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This commit is contained in:
hap 2017-03-26 22:58:09 +02:00
parent 5002529e04
commit 70e66a042e
1 changed files with 51 additions and 3 deletions
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54
src/mame/drivers/fidelz80.cpp
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@ -570,6 +570,12 @@ public:
DECLARE_READ8_MEMBER(vbrc_mcu_t1_r);
DECLARE_READ8_MEMBER(vbrc_mcu_p2_r);
DECLARE_WRITE8_MEMBER(vbrc_ioexp_port_w);
// DSC
void dsc_prepare_display();
DECLARE_WRITE8_MEMBER(dsc_control_w);
DECLARE_WRITE8_MEMBER(dsc_select_w);
DECLARE_READ8_MEMBER(dsc_input_r);
};
@ -1045,6 +1051,45 @@ READ8_MEMBER(fidelz80_state::vbrc_mcu_t1_r)
/******************************************************************************
DSC
******************************************************************************/
// TTL
void fidelz80_state::dsc_prepare_display()
{
// 4 7seg leds
set_display_segmask(0xf, 0xff);
display_matrix(8, 4, m_7seg_data, m_led_select);
}
WRITE8_MEMBER(fidelz80_state::dsc_control_w)
{
// d0-d7: input mux, 7seg data
m_inp_mux = ~data;
m_7seg_data = data;
dsc_prepare_display();
}
WRITE8_MEMBER(fidelz80_state::dsc_select_w)
{
// d4: speaker out
m_dac->write(BIT(~data, 4));
// d0-d3: digit select
m_led_select = data & 0xf;
dsc_prepare_display();
}
READ8_MEMBER(fidelz80_state::dsc_input_r)
{
// d0-d7: multiplexed inputs (active low)
return ~read_inputs(8);
}
/******************************************************************************
Address Maps
******************************************************************************/
@ -1148,9 +1193,12 @@ ADDRESS_MAP_END
// DSC
static ADDRESS_MAP_START( dsc_map, AS_PROGRAM, 8, fidelz80_state )
//ADDRESS_MAP_GLOBAL_MASK(0x7fff)
ADDRESS_MAP_UNMAP_HIGH
AM_RANGE(0x0000, 0x1fff) AM_ROM
AM_RANGE(0xa000, 0xa3ff) AM_RAM
AM_RANGE(0x4000, 0x4000) AM_MIRROR(0x1fff) AM_WRITE(dsc_control_w)
AM_RANGE(0x6000, 0x6000) AM_MIRROR(0x1fff) AM_WRITE(dsc_select_w)
AM_RANGE(0x8000, 0x8000) AM_MIRROR(0x1fff) AM_READ(dsc_input_r)
AM_RANGE(0xa000, 0xa3ff) AM_MIRROR(0x1c00) AM_RAM
ADDRESS_MAP_END
@ -1771,7 +1819,7 @@ ROM_END
ROM_START( damesc )
ROM_REGION( 0x10000, "maincpu", 0 )
ROM_LOAD( "101-1027a01", 0x0000, 0x2000, BAD_DUMP CRC(be1c8ae6) SHA1(e322104600238c36aea9df47ef08673d833d84fe) ) // MOS 2364
ROM_LOAD( "101-1027a01", 0x0000, 0x2000, CRC(d86c985c) SHA1(20f923a24420050fd16e1172f5e889f144d17ac9) ) // MOS 2364
ROM_END