diff options
author | 2015-09-13 08:41:44 +0200 | |
---|---|---|
committer | 2015-09-13 08:41:44 +0200 | |
commit | f88cefad27a1737c76e09d99c9fb43e173506081 (patch) | |
tree | 2d8167d03579c46e226471747eb4407bd00ed6fa /src/devices/cpu/alto2/a2dht.h | |
parent | e92ac9e0fa8e99869894bea00589bbb526be30aa (diff) |
Move all devices into separate part of src tree (nw)
Diffstat (limited to 'src/devices/cpu/alto2/a2dht.h')
-rw-r--r-- | src/devices/cpu/alto2/a2dht.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/src/devices/cpu/alto2/a2dht.h b/src/devices/cpu/alto2/a2dht.h new file mode 100644 index 00000000000..9ff7acc17f4 --- /dev/null +++ b/src/devices/cpu/alto2/a2dht.h @@ -0,0 +1,27 @@ +// license:BSD-3-Clause +// copyright-holders:Juergen Buchmueller +/***************************************************************************** + * + * Xerox AltoII display horizontal task (DHT) + * + *****************************************************************************/ +#ifdef ALTO2_DEFINE_CONSTANTS + +#else // ALTO2_DEFINE_CONSTANTS +#ifndef _A2DHT_H_ +#define _A2DHT_H_ + +//! F2 functions for display horizontal task +enum { + f2_dht_evenfield = f2_task_10, //!< f2 10: load even field + f2_dht_setmode = f2_task_11 //!< f2 11: set mode +}; + +void f1_early_dht_block(); //!< F1 func: disable the display word task +void f2_late_dht_setmode(); //!< F2 func: set the next scanline's mode inverse and half clock and branch +void activate_dht(); //!< called by the CPU when the display horizontal task becomes active +void init_dht(int task = task_dht); //!< initialize display horizontal task +void exit_dht(); //!< deinitialize display horizontal task +void reset_dht(); //!< reset the display horizontal task +#endif // _A2DHT_H_ +#endif // ALTO2_DEFINE_CONSTANTS |