diff options
Diffstat (limited to 'src/devices/cpu/alto2/a2mrt.h')
-rw-r--r-- | src/devices/cpu/alto2/a2mrt.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/src/devices/cpu/alto2/a2mrt.h b/src/devices/cpu/alto2/a2mrt.h new file mode 100644 index 00000000000..20b00724fc9 --- /dev/null +++ b/src/devices/cpu/alto2/a2mrt.h @@ -0,0 +1,19 @@ +// license:BSD-3-Clause +// copyright-holders:Juergen Buchmueller +/***************************************************************************** + * + * Xerox AltoII memory refresh task (MRT) + * + *****************************************************************************/ +#ifdef ALTO2_DEFINE_CONSTANTS + +#else // ALTO2_DEFINE_CONSTANTS +#ifndef _A2MRT_H_ +#define _A2MRT_H_ +void f1_early_mrt_block(); //!< F1 func: block the display word task +void activate_mrt(); //!< called by the CPU when MRT becomes active +void init_mrt(int task = task_mrt); //!< initialize the memory refresh task +void exit_mrt(); //!< deinitialize the memory refresh task +void reset_mrt(); //!< reset the memory refresh task +#endif // _A2MRT_H_ +#endif // ALTO2_DEFINE_CONSTANTS |