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69 lines
1.9 KiB
C
69 lines
1.9 KiB
C
/* $Id: atom.c,v 1.3 1999/05/31 23:35:23 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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#include "version.h"
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/**********************************************************************/
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/*
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File Name : atom.c
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Desc : implement opcode ATOMCELL.N
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Date : Apr 13, 1987
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Edited by : Naoyuki Mitani
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Including : OP_atomcellN
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*/
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/**********************************************************************/
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#include "lispemul.h"
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#include "lispmap.h"
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#include "emlglob.h"
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#ifndef BIGATOMS
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N_OP_atomcellN(int tos, int n)
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{
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if ((tos & 0xffff0000) != 0) ERROR_EXIT(tos);
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tos = (tos << 1);
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switch (n) {
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case D_DEFSHI: return (DEFS_OFFSET + tos);
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case D_VALSHI: return (VALS_OFFSET + tos);
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case D_PLISHI: return (PLIS_OFFSET + tos);
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case D_PNHI: return (PNP_OFFSET + tos);
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default: ERROR_EXIT(tos);
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}
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}
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#else
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N_OP_atomcellN(int tos, int n) {
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if ((tos & 0xffff0000) == 0) { /* XeroxLisp traditional symbol */
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tos = (tos << 1);
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switch (n) {
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case D_DEFSHI: return (DEFS_OFFSET + tos);
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case D_VALSHI: return (VALS_OFFSET + tos);
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case D_PLISHI: return (PLIS_OFFSET + tos);
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case D_PNHI: return (PNP_OFFSET + tos);
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default: ERROR_EXIT(tos);
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}
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} else { /* New Symbol */
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switch (n) {
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case D_DEFSHI: return (NEWATOM_DEFN_OFFSET + tos);
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case D_VALSHI: return (NEWATOM_VALUE_OFFSET + tos);
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case D_PLISHI: return (NEWATOM_PLIST_OFFSET + tos);
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case D_PNHI: return (NEWATOM_PNAME_OFFSET + tos);
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default: ERROR_EXIT(tos);
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}
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}
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}
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#endif
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