54 lines
1.3 KiB
C
54 lines
1.3 KiB
C
/*
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* Copyright (c) 2021, 2022 ipc
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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enum {
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SYSE,
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SYSP,
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SYSW
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};
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#define MEMLIM 0xff000
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#define SCHCNT 300
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#define LOGCNT 50
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#define STATEXIT 1 << 1
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#define STATBRK 1 << 2
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typedef unsigned int uint;
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typedef unsigned char uchar;
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struct mcimp {
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struct mcim *p;
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uint r[16];
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uint epc;
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uint pc;
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uint stat;
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};
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struct mcim {
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struct mcimp proc[4096];
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uchar *mem;
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uchar tty[8192];
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uint ntty;
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uint nproc;
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uint nmem;
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};
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void err(int f, char *fmt, ...);
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int allocmem(struct mcim *p, uint n);
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uint lget(uchar *p);
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void step(struct mcim *p);
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