41 	SCR *new,  in vs_split()  argument
63 	CALLOC(sp, _HMAP(new), SIZE_HMAP(sp), sizeof(SMAP));  in vs_split()
64 	if (_HMAP(new) == NULL)  in vs_split()
66 	_HMAP(new)->lno = sp->lno;  in vs_split()
67 	_HMAP(new)->coff = 0;  in vs_split()
68 	_HMAP(new)->soff = 1;  in vs_split()
82 	new->coff = sp->coff;  in vs_split()
83 	new->cols = sp->cols;  in vs_split()
98 		new->rows = sp->rows - half;	/* New. */  in vs_split()
99 		new->roff = sp->roff;  in vs_split()
101 		sp->roff += new->rows;  in vs_split()
107 		memcpy(_HMAP(sp), _HMAP(sp) + new->rows,  in vs_split()
108 		    (sp->t_maxrows - new->rows) * sizeof(SMAP));  in vs_split()
110 		new->rows = half;		/* New. */  in vs_split()
112 		new->roff = sp->roff + sp->rows;  in vs_split()
117 	new->t_maxrows = IS_ONELINE(new) ? 1 : new->rows - 1;  in vs_split()
129 			sp->t_rows -= new->rows;  in vs_split()
138 		new->t_minrows = new->t_rows = O_VAL(sp, O_WINDOW);  in vs_split()
139 		if (new->t_rows > new->t_maxrows)  in vs_split()
140 			new->t_rows = new->t_maxrows;  in vs_split()
141 		if (new->t_minrows > new->t_maxrows)  in vs_split()
142 			new->t_minrows = new->t_maxrows;  in vs_split()
152 		new->t_minrows = new->t_rows = O_VAL(sp, O_WINDOW);  in vs_split()
153 		if (new->t_rows > new->rows - 1)  in vs_split()
154 			new->t_minrows = new->t_rows =  in vs_split()
155 			    IS_ONELINE(new) ? 1 : new->rows - 1;  in vs_split()
161 	_TMAP(new) = IS_ONELINE(new) ?  in vs_split()
162 	    _HMAP(new) : _HMAP(new) + (new->t_rows - 1);  in vs_split()
167 	if ((new->defscroll = new->t_maxrows / 2) == 0)  in vs_split()
168 		new->defscroll = 1;  in vs_split()
171 	vs_insert(new, sp->gp);  in vs_split()
174 	(void)gp->scr_split(sp, new);  in vs_split()
191 	F_SET(new,  in vs_split()
204 vs_vsplit(SCR *sp, SCR *new)  in vs_vsplit()  argument
223 	CALLOC(sp, _HMAP(new), SIZE_HMAP(sp), sizeof(SMAP));  in vs_vsplit()
224 	if (_HMAP(new) == NULL)  in vs_vsplit()
226 	_HMAP(new)->lno = sp->lno;  in vs_vsplit()
227 	_HMAP(new)->coff = 0;  in vs_vsplit()
228 	_HMAP(new)->soff = 1;  in vs_vsplit()
244 	new->cols = sp->cols - cols - 1;  in vs_vsplit()
246 	new->coff = sp->coff + cols + 1;  in vs_vsplit()
250 	new->rows = sp->rows;  in vs_vsplit()
251 	new->t_rows = sp->t_rows;  in vs_vsplit()
252 	new->t_maxrows = sp->t_maxrows;  in vs_vsplit()
253 	new->t_minrows = sp->t_minrows;  in vs_vsplit()
254 	new->roff = sp->roff;  in vs_vsplit()
255 	new->defscroll = sp->defscroll;  in vs_vsplit()
256 	_TMAP(new) = _HMAP(new) + (new->t_rows - 1);  in vs_vsplit()
259 	vs_insert(new, sp->gp);  in vs_vsplit()
262 	(void)gp->scr_split(sp, new);  in vs_vsplit()
282 	F_SET(new,  in vs_vsplit()