diff options
Diffstat (limited to 'src/devices/machine/ldv1000.cpp')
-rw-r--r-- | src/devices/machine/ldv1000.cpp | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/src/devices/machine/ldv1000.cpp b/src/devices/machine/ldv1000.cpp index 36dae481853..27c874eadf7 100644 --- a/src/devices/machine/ldv1000.cpp +++ b/src/devices/machine/ldv1000.cpp @@ -63,8 +63,8 @@ const device_type PIONEER_LDV1000 = &device_creator<pioneer_ldv1000_device>; static ADDRESS_MAP_START( ldv1000_map, AS_PROGRAM, 8, pioneer_ldv1000_device ) AM_RANGE(0x0000, 0x1fff) AM_MIRROR(0x6000) AM_ROM AM_RANGE(0x8000, 0x87ff) AM_MIRROR(0x3800) AM_RAM - AM_RANGE(0xc000, 0xc003) AM_MIRROR(0x9ff0) AM_DEVREADWRITE("ldvppi0", i8255_device, read, write) - AM_RANGE(0xc004, 0xc007) AM_MIRROR(0x9ff0) AM_DEVREADWRITE("ldvppi1", i8255_device, read, write) + AM_RANGE(0xc000, 0xc003) AM_MIRROR(0x1ff0) AM_DEVREADWRITE("ldvppi0", i8255_device, read, write) + AM_RANGE(0xc004, 0xc007) AM_MIRROR(0x1ff0) AM_DEVREADWRITE("ldvppi1", i8255_device, read, write) ADDRESS_MAP_END @@ -126,6 +126,7 @@ pioneer_ldv1000_device::pioneer_ldv1000_device(const machine_config &mconfig, co m_z80_cpu(*this, "ldv1000"), m_z80_ctc(*this, "ldvctc"), m_multitimer(nullptr), + m_command_strobe_cb(*this), m_command(0), m_status(0), m_vsync(false), @@ -175,6 +176,8 @@ void pioneer_ldv1000_device::device_start() // allocate timers m_multitimer = timer_alloc(TID_MULTIJUMP); + + m_command_strobe_cb.resolve_safe(); } @@ -648,6 +651,9 @@ WRITE8_MEMBER( pioneer_ldv1000_device::ppi1_portc_w ) printf("\n"); } + // bit 4 sends a command strobe signal to Host CPU + m_command_strobe_cb(bool(data & 0x10)); + // video squelch is controlled by bit 3 set_video_squelch((data & 0x08) == 0); |