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Digital-Research-Source-Code/CPM OPERATING SYSTEMS/CPM 68K/1.0X SOURCES/v101/clib/getw.c
Sepp J Morris 31738079c4 Upload
Digital Research
2020-11-06 18:50:37 +01:00

31 lines
1.0 KiB
C

/**************************************************************************
*
* g e t w F u n c t i o n
* -------------------------
* Copyright 1982 by Digital Research Inc. All rights reserved.
*
* "getw" gets an WORD (2 byte) value from the input stream.
* Note that what's written (binary) by a PDP 11 (UNIX: lo byte, hi byte)
* system will NOT be compatible with what's written by a
* 68K (NUXI: hi byte, lo byte) system.
*
* Calling sequence:
* w = getw(stream)
* Where:
* w = a 16-bit word value
* stream-> a (FILE *) input stream
*
*****************************************************************************/
#include <stdio.h>
WORD getw(sp)
REG FILE *sp; /* the stream to get from */
{ /* */
WORD w; /* place to get to */
REG BYTE *p; /* make ptr to w */
/****************************/
p = (char *)&w; /* point to w */
*p++ = getc(sp); /* no way to distinguish */
*p++ = getc(sp); /* twixt EOF & -1 */
return(w); /* there it is */
} /****************************/