File:  [CSRG BSD Unix] / 43BSDReno / sys / tahoealign / Aget_long.c
Revision 1.1.1.1 (vendor branch): download - view: text, annotated - select for diffs
Tue Apr 24 16:12:57 2018 UTC (8 years, 1 month ago) by root
Branches: MAIN, BSD
CVS tags: HEAD, BSD43reno
BSD 4.3reno

/*	Aget_long.c	1.1	86/07/20	*/

#include	"../tahoealign/align.h"
int get_longword (infop, address)
process_info	*infop;
char		*address;
/*
/*	Fetch the longword at the given 'address' from memory.
/*	Caveat: It's quite difficult to find a pte reference
/*		fault.  So I took the easy way out and just signal
/*		an illegal access.
/*	
/**************************************************/
{
	register long code, value;

	code = readable(infop, address, 4);
	if (code == TRUE) {
		value = *address++;
		value = (value << 8) | *address++ & 0xff;
		value = (value << 8) | *address++ & 0xff;
		value = (value << 8) | *address & 0xff;
		return(value);
	} else exception (infop, ILL_ACCESS, address, code);
}

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