37 					 int attr, int tail);
39 					 int attr, int tail);
47 static __inline void	sc_term_down(scr_stat *scp, int n, int tail);
51 					  int attr, int head, int tail);
53 					    int attr, int head, int tail);
64 sc_term_ins_line(scr_stat *scp, int y, int n, int ch, int attr, int tail)  in sc_term_ins_line()  argument
66 	if (tail <= 0)  in sc_term_ins_line()
67 		tail = scp->ysize;  in sc_term_ins_line()
70 	if (n > tail - y)  in sc_term_ins_line()
71 		n = tail - y;  in sc_term_ins_line()
74 	mark_for_update(scp, scp->xsize*tail - 1);  in sc_term_ins_line()
78 sc_term_del_line(scr_stat *scp, int y, int n, int ch, int attr, int tail)  in sc_term_del_line()  argument
80 	if (tail <= 0)  in sc_term_del_line()
81 		tail = scp->ysize;  in sc_term_del_line()
84 	if (n > tail - y)  in sc_term_del_line()
85 		n = tail - y;  in sc_term_del_line()
88 	mark_for_update(scp, scp->xsize*tail - 1);  in sc_term_del_line()
151 sc_term_down(scr_stat *scp, int n, int tail)  in sc_term_down()  argument
153 	if (tail <= 0)  in sc_term_down()
154 		tail = scp->ysize;  in sc_term_down()
157 	n = imin(n, tail - scp->ypos - 1);  in sc_term_down()
180 sc_term_up_scroll(scr_stat *scp, int n, int ch, int attr, int head, int tail)  in sc_term_up_scroll()  argument
182 	if (tail <= 0)  in sc_term_up_scroll()
183 		tail = scp->ysize;  in sc_term_up_scroll()
190 				 ch, attr, tail);  in sc_term_up_scroll()
196 sc_term_down_scroll(scr_stat *scp, int n, int ch, int attr, int head, int tail)  in sc_term_down_scroll()  argument
198 	if (tail <= 0)  in sc_term_down_scroll()
199 		tail = scp->ysize;  in sc_term_down_scroll()
202 	if (n < tail - scp->ypos) {  in sc_term_down_scroll()
205 		sc_term_del_line(scp, head, n - (tail - scp->ypos) + 1,   in sc_term_down_scroll()
206 				 ch, attr, tail);  in sc_term_down_scroll()
207 		sc_move_cursor(scp, scp->xpos, tail - 1);  in sc_term_down_scroll()