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53 lines
1.7 KiB
C
53 lines
1.7 KiB
C
/* $Id: bin.c,v 1.3 1999/05/31 23:35:24 sybalsky Exp $ (C) Copyright Venue, All Rights Reserved */
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/************************************************************************/
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/* */
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/* (C) Copyright 1989-95 Venue. All Rights Reserved. */
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/* Manufactured in the United States of America. */
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/* */
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/************************************************************************/
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/***********************************************************************/
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/*
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File Name : bin.c
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Desc :
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Date : Jul. 22, 1987
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Edited by : Takeshi Shimizu
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Changed :
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Including : OP_bin
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*/
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/**********************************************************************/
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#include "version.h"
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#include "adr68k.h" // for Addr68k_from_LADDR
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#include "bindefs.h" // for N_OP_bin
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#include "emlglob.h"
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#include "lispmap.h" // for S_POSITIVE
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#include "lspglob.h"
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#include "lsptypes.h" // for state, ERROR_EXIT, GetTypeNumber, Get_BYTE
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#include "stream.h" // for Stream
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LispPTR N_OP_bin(LispPTR tos) {
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register Stream *stream68k; /* stream instance on TOS */
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register char *buff68k; /* pointer to BUFF */
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if (GetTypeNumber(tos) == TYPE_STREAM) {
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stream68k = (Stream *)Addr68k_from_LADDR(tos);
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if (!stream68k->BINABLE) ERROR_EXIT(tos);
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if (stream68k->COFFSET >= stream68k->CBUFSIZE) ERROR_EXIT(tos);
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/* get BUFFER instance */
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buff68k = (char *)Addr68k_from_LADDR(stream68k->CBUFPTR);
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/* get BYTE data and set it to TOS */
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return (S_POSITIVE | (Get_BYTE(buff68k + (stream68k->COFFSET)++)));
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} else
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ERROR_EXIT(tos);
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}
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