b1766b6dcf
- Recent changes in vax_watch.c changed the input parameter from a physical address to a register address within the watch chip. - vax630_sysdev.c called the older wtc_wr() with the new parameter, but the length argument has been removed. - The watch chip never starts as valid. Make it valid when the TODR is attached (i.e. reflecting a connected battery). - 64 bytes of bus addresses for the watch chip can sometimes be dispatched to wtc_rd() and wtc_wr(). Make sure that reasonable memory is always referenced for all potential accesses. - restore vax8200 to makefile which got lost in a prior merge.
47 lines
2 KiB
C
47 lines
2 KiB
C
/* vax_watch.h: VAX watch chip
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Copyright (c) 2019, Mark Pizzolato
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This module incorporates code from SimH:
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Copyright (c) 1998-2008, Robert M Supnik,
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Copyright (c) 2019, Matt Burke
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Permission is hereby granted, free of charge, to any person obtaining a
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copy of this software and associated documentation files (the "Software"),
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to deal in the Software without restriction, including without limitation
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the rights to use, copy, modify, merge, publish, distribute, sublicense,
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and/or sell copies of the Software, and to permit persons to whom the
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Software is furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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THE AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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Except as contained in this notice, the name(s) of the author(s) shall not be
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used in advertising or otherwise to promote the sale, use or other dealings
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in this Software without prior written authorization from the author(s).
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This file covers the watch chip (MC146818)
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*/
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#ifndef _VAX_WATCH_H_
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#define _VAX_WATCH_H_ 1
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#include "vax_defs.h"
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extern t_stat wtc_set (UNIT *uptr, int32 val, CONST char *cptr, void *desc);
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extern t_stat wtc_show (FILE *st, UNIT *uptr, int32 val, CONST void *desc);
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extern void wtc_set_valid (void);
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extern void wtc_set_invalid (void);
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extern int32 wtc_rd (int32 rg);
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extern int32 wtc_rd_pa (int32 pa);
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extern void wtc_wr (int32 rg, int32 val);
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extern void wtc_wr_pa (int32 pa, int32 val, int32 lnt);
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#endif
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