diff options
Diffstat (limited to 'src/mess/drivers/pv2000.c')
-rw-r--r-- | src/mess/drivers/pv2000.c | 28 |
1 files changed, 14 insertions, 14 deletions
diff --git a/src/mess/drivers/pv2000.c b/src/mess/drivers/pv2000.c index af17e2341f2..72b258136d2 100644 --- a/src/mess/drivers/pv2000.c +++ b/src/mess/drivers/pv2000.c @@ -146,20 +146,20 @@ READ8_MEMBER( pv2000_state::pv2000_keys_mod_r ) READ8_MEMBER( pv2000_state::cass_in ) { - // from what i can tell, - // 0 = data in - // 1 = must be high - // 2 = must be low - // bits 1 & 2 are checked while reading and writing tapes - // Press STOP key (F1) to cancel LOAD or SAVE + // from what i can tell, + // 0 = data in + // 1 = must be high + // 2 = must be low + // bits 1 & 2 are checked while reading and writing tapes + // Press STOP key (F1) to cancel LOAD or SAVE return 2 | ((m_cass->input() > +0.03) ? 1 : 0); } WRITE8_MEMBER( pv2000_state::cass_out ) { - // it outputs 8-bit values here which are not the bytes in the file - // result is not readable + // it outputs 8-bit values here which are not the bytes in the file + // result is not readable m_cass->output( BIT(data, 0) ? -1.0 : +1.0); } @@ -174,7 +174,7 @@ static ADDRESS_MAP_START( pv2000_map, AS_PROGRAM, 8, pv2000_state ) AM_RANGE(0x4001, 0x4001) AM_DEVREADWRITE("tms9928a", tms9928a_device, register_read, register_write) AM_RANGE(0x7000, 0x7FFF) AM_RAM - //AM_RANGE(0x8000, 0xBFFF) ext ram? + //AM_RANGE(0x8000, 0xBFFF) ext ram? AM_RANGE(0xC000, 0xFFFF) AM_ROM //cart ADDRESS_MAP_END @@ -305,7 +305,7 @@ INPUT_PORTS_END WRITE_LINE_MEMBER( pv2000_state::pv2000_vdp_interrupt ) { - // only if it goes up + // only if it goes up if (state && !m_last_state) machine().device("maincpu")->execute().set_input_line(INPUT_LINE_NMI, PULSE_LINE); @@ -359,7 +359,7 @@ static TMS9928A_INTERFACE(pv2000_tms9928a_interface) static const sn76496_config psg_intf = { - DEVCB_NULL + DEVCB_NULL }; @@ -375,7 +375,7 @@ void pv2000_state::machine_reset() m_keyb_column = 0; machine().device("maincpu")->execute().set_input_line_vector(INPUT_LINE_IRQ0, 0xff); - memset(&memregion("maincpu")->base()[0x7000], 0xff, 0x1000); // initialize RAM + memset(&memregion("maincpu")->base()[0x7000], 0xff, 0x1000); // initialize RAM } static DEVICE_IMAGE_LOAD( pv2000_cart ) @@ -422,7 +422,7 @@ static const cassette_interface pv2000_cassette_interface = static MACHINE_CONFIG_START( pv2000, pv2000_state ) // basic machine hardware - MCFG_CPU_ADD("maincpu", Z80, XTAL_7_15909MHz/2) // 3.579545 MHz + MCFG_CPU_ADD("maincpu", Z80, XTAL_7_15909MHz/2) // 3.579545 MHz MCFG_CPU_PROGRAM_MAP(pv2000_map) MCFG_CPU_IO_MAP(pv2000_io_map) @@ -434,7 +434,7 @@ static MACHINE_CONFIG_START( pv2000, pv2000_state ) // sound hardware MCFG_SPEAKER_STANDARD_MONO("mono") - MCFG_SOUND_ADD("sn76489a", SN76489A, XTAL_7_15909MHz/2) /* 3.579545 MHz */ + MCFG_SOUND_ADD("sn76489a", SN76489A, XTAL_7_15909MHz/2) /* 3.579545 MHz */ MCFG_SOUND_CONFIG(psg_intf) MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.00) MCFG_SOUND_WAVE_ADD(WAVE_TAG, CASSETTE_TAG) |