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cc65/include/_6526.h
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1.1 KiB
C

/*
* _6526.h
*
* Ullrich von Bassewitz, 22.09.1998
*
* Internal include file, do not use directly.
*
*/
#ifndef __6526_H
#define __6526_H
/* Define a structure with the 6526 register offsets */
struct __6526 {
unsigned char pra; /* Port register A */
unsigned char prb; /* Port register B */
unsigned char ddra; /* Data direction register A */
unsigned char ddrb; /* Data direction register B */
unsigned char ta_lo; /* Timer A, low byte */
unsigned char ta_hi; /* Timer A, high byte */
unsigned char tb_lo; /* Timer B, low byte */
unsigned char tb_hi; /* Timer B, high byte */
unsigned char tod_10; /* TOD, 1/10 sec. */
unsigned char tod_sec; /* TOD, seconds */
unsigned char tod_min; /* TOD, minutes */
unsigned char tod_hour; /* TOD, hours */
unsigned char sdr; /* Serial data register */
unsigned char icr; /* Interrupt control register */
unsigned char cra; /* Control register A */
unsigned char crb; /* Control register B */
};
/* End of _6526.h */
#endif