// license:BSD-3-Clause // copyright-holders:Juergen Buchmueller /***************************************************************************** * * Xerox AltoII disk word task (KWD) * *****************************************************************************/ #ifdef ALTO2_DEFINE_CONSTANTS #else // ALTO2_DEFINE_CONSTANTS #ifndef _A2KWD_H_ #define _A2KWD_H_ //! BUS source for disk word task enum { bs_kwd_read_kstat = bs_task_3, //!< bus source: read disk status register bs_kwd_read_kdata = bs_task_4 //!< bus source: read disk data register }; //! F1 functions for disk word task enum { //!< f1 10: undefined f1_kwd_strobe = f1_task_11, //!< f1 11: strobe f1_kwd_load_kstat = f1_task_12, //!< f1 12: load kstat register f1_kwd_increcno = f1_task_13, //!< f1 13: increment record number f1_kwd_clrstat = f1_task_14, //!< f1 14: clear status register f1_kwd_load_kcom = f1_task_15, //!< f1 15: load kcom register f1_kwd_load_kadr = f1_task_16, //!< f1 16: load kadr register f1_kwd_load_kdata = f1_task_17 //!< f1 17: load kdata register }; //! F2 functions for disk word task enum { f2_kwd_init = f2_task_10, //!< f2 10: branches NEXT[5-9] on WDTASKACT && WDINIT f2_kwd_rwc = f2_task_11, //!< f2 11: branches NEXT[8-9] on READ/WRITE/CHECK for record f2_kwd_recno = f2_task_12, //!< f2 12: branches NEXT[8-9] on RECNO[0-1] f2_kwd_xfrdat = f2_task_13, //!< f2 13: branches NEXT[9] on !SEEKONLY f2_kwd_swrnrdy = f2_task_14, //!< f2 14: branches NEXT[9] on !SWRDY f2_kwd_nfer = f2_task_15, //!< f2 15: branches NEXT[9] on !KFER f2_kwd_strobon = f2_task_16 //!< f2 16: branches NEXT[9] on STROBE //!< f2 17: undefined }; void f1_early_kwd_block(); //!< F1 func: disable the disk word task void init_kwd(int task = task_kwd); //!< initialize the disk word task void exit_kwd(); //!< deinitialize the disk word task void reset_kwd(); //!< reset the disk word task #endif // _A2KWD_H_ #endif // ALTO2_DEFINE_CONSTANTS