Remove all "register" modifiers in cl and ecl

In modern languages, the "register" modifier is ignored, and the
variables are placed in the register by the compiler's decision.

pkg/cl/binop.c

@@ -43,7 +43,7 @@
 #define	RIGHTSIDE	1
 
 char *
-strint (register char *s, int side)
+strint (char *s, int side)
 {
 	if (side == LEFTSIDE) {
 	    while (isdigit (*s))
@@ -75,7 +75,7 @@ strint (register char *s, int side)
 void
 binop (int opcode)
 {
-	register int typ1, typ2;
+	int typ1, typ2;
 	struct	operand o1, o2, result;
 	char	res[2*SZ_LINE];
 	char	*o1sp;
@@ -545,7 +545,7 @@ binop (int opcode)
 void
 binexp (int opcode)
 {
-	register int typ1, typ2;
+	int typ1, typ2;
 	struct	operand o1, o2, result;
 	int	strres=0, dostr=0;
 

pkg/cl/bkg.c

@@ -123,8 +123,8 @@ bkg_spawn (
     char *cmd		/* command entered by user to spawn job	*/
 )
 {
-	register struct _bkgjob *bk;
-	register int	jobno, stat;
+	struct _bkgjob *bk;
+	int	jobno, stat;
 	int	curpid = c_getpid();
 
 	/* Find first unused slot in a circular search.
@@ -183,9 +183,9 @@ bkg_spawn (
  * all bkg jobs to terminate.
  */
 void
-bkg_wait (register int job)
+bkg_wait (int job)
 {
-	register int	j;
+	int	j;
 	int	active_jobs;
 
 	if (job < 0 || job > NBKG)
@@ -213,8 +213,8 @@ bkg_wait (register int job)
 void
 bkg_kill (int job)
 {
-	register struct _bkgjob *bk;
-	register int	j;
+	struct _bkgjob *bk;
+	int	j;
 
 	bkg_update (1);
 	if (job < 0 || job > NBKG)
@@ -253,9 +253,9 @@ bkg_jobstatus (
     int job			/* job(s)		*/
 )
 {
-	register struct _bkgjob *bk;
-	register int	j, n, ch;
-	register char	*ip;
+	struct _bkgjob *bk;
+	int	j, n, ch;
+	char	*ip;
 	long	seconds;
 
 	bkg_update (1);
@@ -327,8 +327,8 @@ bkg_update (
     int pmsg			/* print event messages		*/
 )
 {
-	register struct	_bkgjob *bk;
-	register int	j;
+	struct	_bkgjob *bk;
+	int	j;
 
 	for (bk=jobtable, j=1;  j <= NBKG;  j++, bk++) {
 	    if (busy(j)) {
@@ -355,7 +355,7 @@ bkg_close (
     int pmsg			/* print termination message	*/
 )
 {
-	register struct	_bkgjob *bk = &jobtable[job-1];
+	struct	_bkgjob *bk = &jobtable[job-1];
 
 	bk->b_clock = c_clktime (bk->b_clock);
 	bk->b_exitcode = c_prcldpr (bk->b_jobno);
@@ -418,8 +418,8 @@ bkg_delfiles (int job)
 void
 bkg_abort (void)
 {
-	register int	job;
-	register struct task *tp;
+	int	job;
+	struct task *tp;
 
 	for (job=1;  job <= NBKG;  job++)
 	    if (busy (job))