43 lines
954 B
C
43 lines
954 B
C
/*
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(c) copyright 1988 by the Vrije Universiteit, Amsterdam, The Netherlands.
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See the copyright notice in the ACK home directory, in the file "Copyright".
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*/
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/*
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Module: store values from stack, byte by byte
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Author: Ceriel J.H. Jacobs
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Version: $Header$
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*/
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#include <m2_traps.h>
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#ifndef EM_WSIZE
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#define EM_WSIZE _EM_WSIZE
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#define EM_PSIZE _EM_PSIZE
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#endif
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#if EM_WSIZE==EM_PSIZE
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typedef unsigned pcnt;
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#else
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typedef long pcnt;
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#endif
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store(siz, addr, p)
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register char *addr;
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register pcnt siz;
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{
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/* Make sure, that a value with a size that could have been
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handled by the LOI instruction is handled as if it was
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loaded with the LOI instruction.
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*/
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register char *q = (char *) &p;
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char t[4];
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if (siz < EM_WSIZE && EM_WSIZE % siz == 0) {
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/* as long as EM_WSIZE <= 4 ... */
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if (siz != 2) TRP(M2_INTERNAL); /* internal error */
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*((unsigned short *) (&t[0])) = *((unsigned *) q);
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q = &t[0];
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}
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while (siz--) *addr++ = *q++;
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}
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