int	move_y(DviContext *dvi, int opcode)
{
	int	v, vv;
	
	if(opcode != DVI_Y0)
		dvi->pos.y = dsgetn(dvi, opcode - DVI_Y0);
	v = dvi->pos.v;
	vv = move_vertical(dvi, dvi->pos.y);
	SHOWCMD((dvi, "y", opcode - DVI_Y0,
		"%d h:=%d%c%d=%d, hh:=%d\n", 
		dvi->pos.y, DBGSUM(v, dvi->pos.y, dvi->pos.v), vv));
	dvi->pos.vv = vv;
	return 0;
}
int	move_y(DviContext *dvi, int opcode)
{
	int	v, vv;
	
	if(opcode != DVI_Y0)
		dvi->pos.y = dsgetn(dvi, opcode - DVI_Y0);
	v = dvi->pos.v;
	vv = move_vertical(dvi, dvi->pos.y);
	SHOWCMD((dvi, "y", opcode - DVI_Y0,
		"%d h:=%d%c%d=%d, hh:=%d\n", 
		dvi->pos.y, DBGSUM(v, dvi->pos.y, dvi->pos.v), vv));
	dvi->pos.vv = vv;
	return 0;
}