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C/C++ Interactive Reference Guide
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C-C++ Interactive Reference Guide.iso
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csource5
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342_01
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i8255f08.c
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C/C++ Source or Header
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1991-02-26
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/*-
* ----------------------------------------------------------------------
* File : I8255F08.C
* Creator : Blake Miller
* Version : 01.00.00 February 1991
* Language : Microsoft C Version 5.1
* Purpose : Intel 8255 Compatible Digital IO Functions
* : Read All 8255 Bytes
* ----------------------------------------------------------------------
*/
#define I8255F08_C_DEFINED 1
#include "I8255FN.H"
#undef I8255F08_C_DEFINED
void I8255_load_bytes (I8255DAT *data);
/*- I8255 : Load Bytes -----------------------**
* Read all of the bytes of the 8255 into the data area.
* Passed:
* pointer : I8255DAT
* Returns:
* nothing
*/
void I8255_load_bytes (I8255DAT *data)
{
unsigned char ival; /* input value */
/* Port A data */
chp_portrd ( I8255_PORTA(data->base), &ival );
data->adat = ival;
/* Port B data */
chp_portrd ( I8255_PORTB(data->base), &ival );
data->bdat = ival;
/* Port C data */
chp_portrd ( I8255_PORTC(data->base), &ival );
data->cdat = ival;
data->stat = I8255_ST_OK;
}
/*-
* ----------------------------------------------------------------------
* END I8255F08.C Source File
* ----------------------------------------------------------------------
*/