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////////////////////////////////////////////////////////////////////////////////

//

// Filename:    display.h

//

// Project:     CMod S6 System on a Chip, ZipCPU demonstration project

//

// Purpose:     A device driver for the SPI controlled display.  The primary

//              purpose of this "device" is to output SPI instructions, though,

//      not to handle screen position or to optimize data set to the display.

//

// Creator:     Dan Gisselquist, Ph.D.

//              Gisselquist Technology, LLC

//

////////////////////////////////////////////////////////////////////////////////

//

// Copyright (C) 2015-2016, Gisselquist Technology, LLC

//

// This program is free software (firmware): you can redistribute it and/or

// modify it under the terms of  the GNU General Public License as published

// by the Free Software Foundation, either version 3 of the License, or (at

// your option) any later version.

//

// This program is distributed in the hope that it will be useful, but WITHOUT

// ANY WARRANTY; without even the implied warranty of MERCHANTIBILITY or

// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

// for more details.

//

// You should have received a copy of the GNU General Public License along

// with this program.  (It's in the $(ROOT)/doc directory, run make with no

// target there if the PDF file isn't present.)  If not, see

// <http://www.gnu.org/licenses/> for a copy.

//

// License:     GPL, v3, as defined and found on www.gnu.org,

//              http://www.gnu.org/licenses/gpl.html

//

//

////////////////////////////////////////////////////////////////////////////////

//

//

#ifndef DISPLAY_H

#define DISPLAY_H

#define PACK(A,B,C,D)   (((A)<<24)|((B)<<16)|((C)<<8)|(D))

extern void     dispchar(int ch);

#ifdef  ZIPOS

extern void     displaytask(void);

#endif  // ZIPOS

#endif  // DISPLAY_H