4.3BSD-Reno/src/sys/tahoealign/Aget_byte.c

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

#include	"../tahoealign/align.h"
int get_byte (infop, address)
process_info	*infop;
char		*address;
/*
/*	Fetch the byte 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;

	code = readable(infop, (long)address, 1);
	if ( code == TRUE ) {
		return(*address);
	} else exception (infop, ILL_ACCESS, address, code);
}