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/*

 * dspkbd.h -- display & keyboard controller simulation

 */

#ifndef _DSPKBD_H_

#define _DSPKBD_H_

Word displayRead(Word addr);

void displayWrite(Word addr, Word data);

void displayReset(void);

void displayInit(void);

void displayExit(void);

#define KEYBOARD_CTRL           0        /* keyboard control register */

#define KEYBOARD_DATA           4       /* keyboard data register */

#define KEYBOARD_RDY            0x01    /* keyboard has a character */

#define KEYBOARD_IEN            0x02    /* enable keyboard interrupt */

#define KEYBOARD_USEC           2000    /* input checking interval */

Word keyboardRead(Word addr);

void keyboardWrite(Word addr, Word data);

void keyboardReset(void);

void keyboardInit(void);

void keyboardExit(void);

#endif /* _DSPKBD_H_ */