diff options
Diffstat (limited to 'src/devices/cpu/cop400/cop400.h')
-rw-r--r-- | src/devices/cpu/cop400/cop400.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/devices/cpu/cop400/cop400.h b/src/devices/cpu/cop400/cop400.h index bace4710008..2f907afc933 100644 --- a/src/devices/cpu/cop400/cop400.h +++ b/src/devices/cpu/cop400/cop400.h @@ -20,6 +20,9 @@ cop400_cpu_device::set_read_l_callback(*device, DEVCB_##_devcb); #define MCFG_COP400_WRITE_L_CB(_devcb) \ cop400_cpu_device::set_write_l_callback(*device, DEVCB_##_devcb); +// output state when pins are in tri-state, default 0 +#define MCFG_COP400_READ_L_TRISTATE_CB(_devcb) \ + cop400_cpu_device::set_read_l_tristate_callback(*device, DEVCB_##_devcb); // G pins: 4-bit bi-directional #define MCFG_COP400_READ_G_CB(_devcb) \ @@ -125,6 +128,7 @@ public: // static configuration helpers template<class _Object> static devcb_base &set_read_l_callback(device_t &device, _Object object) { return downcast<cop400_cpu_device &>(device).m_read_l.set_callback(object); } + template<class _Object> static devcb_base &set_read_l_tristate_callback(device_t &device, _Object object) { return downcast<cop400_cpu_device &>(device).m_read_l_tristate.set_callback(object); } template<class _Object> static devcb_base &set_write_l_callback(device_t &device, _Object object) { return downcast<cop400_cpu_device &>(device).m_write_l.set_callback(object); } template<class _Object> static devcb_base &set_read_g_callback(device_t &device, _Object object) { return downcast<cop400_cpu_device &>(device).m_read_g.set_callback(object); } template<class _Object> static devcb_base &set_write_g_callback(device_t &device, _Object object) { return downcast<cop400_cpu_device &>(device).m_write_g.set_callback(object); } @@ -176,6 +180,7 @@ protected: // i/o handlers devcb_read8 m_read_l; + devcb_read8 m_read_l_tristate; devcb_write8 m_write_l; devcb_read8 m_read_g; devcb_write8 m_write_g; |