www.pudn.com > 8255_code_lib.rar > DIOFNC08.C

/*- 
 *  ---------------------------------------------------------------------- 
 *  File        :   DIOFNC08.C 
 *  Creator     :   Blake Miller 
 *  Version     :   01.01.00        February 1991 
 *  Language    :   Microsoft C     Version 5.1 
 *  Purpose     :   Intel 8255 Compatible Digital IO Functions 
 *                  Read All 8255 Bytes 
 *  ---------------------------------------------------------------------- 
 *  Revision History: 
 *  022891 BVM  :   Change int to short. 
 *  070490 BVM  :   Creation 
 *  ---------------------------------------------------------------------- 
 */ 
 
#define     DIOFNC08_C_DEFINED 
#include    "DIOLIB.H" 
#undef      DIOFNC08_C_DEFINED 
 
void dio_load_bytes (DIODAT *data); 
 
/*- DIO : Load Bytes -------------------------** 
 *  Read all of the bytes of the 8255 into the data area. 
 *  Passed: 
 *      pointer :   DIODAT 
 *  Returns: 
 *      nothing 
 */ 
void dio_load_bytes (DIODAT *data) 
	{ 
	short           port;   /* port counter */ 
	unsigned char   ival;   /* input value  */ 
 
	for ( port = 0; port < DIO_MAXCH; port++ ){ 
		dio_bget ( data->base + port, &ival ); 
		data->pdat[port] = ival; 
		} 
	data->stat = DIO_ST_OK; 
	} 
 
/*- 
 *  ---------------------------------------------------------------------- 
 *  END DIOFNC08.C Source File 
 *  ---------------------------------------------------------------------- 
 */