/*
 * CP/M Program to drive 8x8 LED matrixes with MAX7219 
 *
 * Based on Arduino MaxMatrix, by Oscar Kin-Chung Au
 */

#ifndef false
#define false 0
#endif
#ifndef true
#define true 1
#endif

#ifndef LOW
#define LOW 0
#endif
#ifndef HIGH
#define HIGH 1
#endif

/*#ifndef LSBFIRST
#define LSBFIRST 0
#endif*/
#ifndef MSBFIRST
#define MSBFIRST 1
#endif

#define max7219_reg_noop        0x00
#define max7219_reg_digit0      0x01
#define max7219_reg_digit1      0x02
#define max7219_reg_digit2      0x03
#define max7219_reg_digit3      0x04
#define max7219_reg_digit4      0x05
#define max7219_reg_digit5      0x06
#define max7219_reg_digit6      0x07
#define max7219_reg_digit7      0x08
#define max7219_reg_decodeMode  0x09
#define max7219_reg_intensity   0x0a
#define max7219_reg_scanLimit   0x0b
#define max7219_reg_shutdown    0x0c
#define max7219_reg_displayTest 0x0f

#define bitRead(value, bit) (((value) >> (bit)) & 0x01)
#define bitSet(value, bit) ((value) |= (1 << (bit)))
#define bitClear(value, bit) ((value) &= ~(1 << (bit)))
#define bitWrite(value, bit, bitvalue) (bitvalue ? bitSet(value, bit) : bitClear(value, bit))

    void delay();	
    void smallDelay();
    void init();
    void clear();
    void setCommand(char command, char value);
    
    void testSetColumn();
    void setColumn(char col, char value);
    
    void testSetColumnAll();
    void setColumnAll(char col, char value);
    
    void setDotON();
    void setDotOFF();
    void setDot(char col, char row, char value);
    
    void writeSprite(int x, int y, char* sprite);
    
    void shiftLeft(char rotate, char fill_zero);
    void shiftRight(char rotate, char fill_zero);
    void shiftUp(char rotate);
    void shiftDown(char rotate);

    void shiftOut(char dataPin, char clockPin, char val);
    void digitalWrite(char dataPin, char state);
    void printPortData();
    void printData(char charData);    
    
    int displayString(char *str);
    int testAllSprites();