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author | 2015-09-13 08:41:44 +0200 | |
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committer | 2015-09-13 08:41:44 +0200 | |
commit | f88cefad27a1737c76e09d99c9fb43e173506081 (patch) | |
tree | 2d8167d03579c46e226471747eb4407bd00ed6fa /src/devices/cpu/alto2/a2kwd.h | |
parent | e92ac9e0fa8e99869894bea00589bbb526be30aa (diff) |
Move all devices into separate part of src tree (nw)
Diffstat (limited to 'src/devices/cpu/alto2/a2kwd.h')
-rw-r--r-- | src/devices/cpu/alto2/a2kwd.h | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/src/devices/cpu/alto2/a2kwd.h b/src/devices/cpu/alto2/a2kwd.h new file mode 100644 index 00000000000..678408501d2 --- /dev/null +++ b/src/devices/cpu/alto2/a2kwd.h @@ -0,0 +1,49 @@ +// 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 |