[unix-history] / usr / src / sys / tahoe / align / Aget_long.c

/*	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);
}
Commit	Line	Data
40974cdd SL	1	/* Aget_long.c 1.1 86/07/20 */
	2
	3	#include "../tahoealign/align.h"
	4	int get_longword (infop, address)
	5	process_info *infop;
	6	char *address;
	7	/*
	8	/* Fetch the longword at the given 'address' from memory.
	9	/* Caveat: It's quite difficult to find a pte reference
	10	/* fault. So I took the easy way out and just signal
	11	/* an illegal access.
	12	/*
	13	/**************************************************/
	14	{
	15	register long code, value;
	16
	17	code = readable(infop, address, 4);
	18	if (code == TRUE) {
	19	value = *address++;
	20	value = (value << 8) \| *address++ & 0xff;
	21	value = (value << 8) \| *address++ & 0xff;
	22	value = (value << 8) \| *address & 0xff;
	23	return(value);
	24	} else exception (infop, ILL_ACCESS, address, code);
	25	}