23 lines
636 B
C
23 lines
636 B
C
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#include "syslib.h"
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/*===========================================================================*
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* sys_in *
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*===========================================================================*/
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PUBLIC int sys_in(port, value, type)
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int port; /* port address to read from */
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unsigned long *value; /* pointer where to store value */
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int type; /* byte, word, long */
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{
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message m_io;
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int result;
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m_io.DIO_TYPE = type;
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m_io.DIO_REQUEST = DIO_INPUT;
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m_io.DIO_PORT = port;
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result = _taskcall(SYSTASK, SYS_DEVIO, &m_io);
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*value = m_io.DIO_VALUE;
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return(result);
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}
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