232 			if (sfbeg(arg1) == 0 && sbackc(arg1) < 0) {  in commnds()
287 			if (sfbeg(p) == 0) {  in commnds()
290 					if (sfbeg(p) == 1)  in commnds()
325 			if (sfbeg(q) == 0)  in commnds()
359 					while (sfbeg(q) == 0)  in commnds()
455 			if ((sfbeg(q) == 0) && ((c = sbackc(q)) < 0))  in commnds()
459 			while (c < BC_SCALE_MAX && sfbeg(q) == 0)  in commnds()
641 			if ((sfbeg(q) == 0) && ((c = sbackc(q)) < 0))  in commnds()
644 			while (c < BC_DIM_MAX && sfbeg(q) == 0)  in commnds()
690 			if ((sfbeg(q) == 0) && ((c = sbackc(q)) < 0))  in commnds()
693 			while (c < BC_DIM_MAX && sfbeg(q) == 0)  in commnds()
802 	if (sfbeg(divd) == 0 && sbackc(divd) == -1) {  in dcdiv()
817 	c = c * 100 + (sfbeg(divr)?0:sbackc(divr));  in dcdiv()
819 		c = (c * 100 +(sfbeg(divr)?0:sbackc(divr)))*2;  in dcdiv()
825 		dd = sfbeg(divd)?0:sbackc(divd);  in dcdiv()
827 		dd = sfbeg(divd)?0:sbackc(divd);  in dcdiv()
913 	while (sfbeg(p) == 0) {  in dcdiv()
921 	while (sfbeg(divd) == 0) {  in dcdiv()
949 	if (sfbeg(dr) == 1 || (sfbeg(dr) == 0 && sbackc(dr) == 0)) {  in dscale()
955 	if (sfbeg(dd) == 1 || (sfbeg(dd) == 0 && sbackc(dd) == 0)) {  in dscale()
1033 		c = c * 100 + (sfbeg(p) ? 0 : sbackc(p));  in sqrt()
1063 		nn = sfbeg(t) ? 0 : sbackc(t);  in sqrt()
1086 	if (sfbeg(e) != 0)  in exp()
1351 	if (sfbeg(p) == 0) {  in mult()
1360 	if (sfbeg(q) == 0) {  in mult()
1513 	if (sfbeg(hptr) != 0) {  in print()
1552 	while (sfbeg(strptr) == 0)  in print()
1626 	while ((sfbeg(p) == 0) && ((p->rd-p->beg-1)*2 >= sc)) {  in tenot()
1818 		while (sfbeg(t) == 0)  in bigot()
1863 	if (sfbeg(p) == 0) {  in add()
1864 		while (sfbeg(p) == 0 && (c = sbackc(p)) == 0);  in add()
1870 	if (sfbeg(p) == 0 && sbackc(p) == -1) {  in add()