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researchv9-SUN3(old)

static char ID[] = "@(#) switch.c: 1.1 3/16/82";
#include "sdp.h"
#include "define3.h"


int
rem_frame(environ,frame)
struct ENVIRON *environ ;
int frame ;
{
	register struct MANAGER	*manager ;

	manager = environ->manp ;
	manager[manager[frame].backward].forward = manager[frame].forward ;
	manager[manager[frame].forward].backward = manager[frame].backward ;
	manager[frame].forward = manager[frame].backward = END ;
	return(frame) ;
}

ins_frame(environ,frame,position)
struct ENVIRON *environ ;
int frame, position ;
{
	register struct MANAGER	*manager ;

	manager = environ->manp ;
	manager[manager[position].backward].forward = frame ;
	manager[frame].backward = manager[position].backward ;
	manager[position].backward = frame ;
	manager[frame].forward = position ;
	return ;
}

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