/*
	This C language subroutine returns non-zero
	if the input is a space character, 
	zero otherwise.

	The Run Time Library for the C Language.

	Gordon A. Sterling	(617) 461 - 3076
	DSP Development Tools Engineering

	Updated on 5/94 by AS

	#include <ctype.h>			<Header>
	int isspace(int c);			<Prototype>
*/

#include "lib_glob.h"
#include "cty_glob.h"

.SEGMENT/CODE	Code_Space_Name;
.FILE 		RTL_FILENAME;

.GLOBAL	    	_isspace;

_isspace:	R2=32;			/*ASC(' ')*/
		COMP(R4,R2), R0=dm_1;	/*Test for space */
		IF EQ JUMP (PC, restore_state) (DB);
		R2=13;			/*13 = ASC('\n')*/
		COMP(R4,R2), FETCH_RETURN
		IF GT R0=R0-R0;		/*Set return to false*/
		R2=9;			/*9 = ASC('\r')*/
		COMP(R4,R2);
		IF LT R0=R0-R0;		/*Set return to false*/

restore_state:	RETURN (DB);
		RESTORE_STACK
		RESTORE_FRAME
.ENDSEG;