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Source/initializers.h

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+/*
+
+$VER: initializers.h 41.4 (21.11.2003)
+Copyright (C) 2000-2003 Neil Cafferkey
+
+This file is free software; you can redistribute it and/or modify it
+under the terms of the GNU Lesser General Public License as
+published by the Free Software Foundation; either version 2.1 of the
+License, or (at your option) any later version.
+
+This file is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public
+License along with this file; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+MA 02111-1307, USA.
+
+*/
+
+#ifndef EXEC_INITIALIZERS_H
+#define EXEC_INITIALIZERS_H
+
+#include <exec/types.h>
+
+
+/* Use the OFFSET macro as the offset parameter of one of the other
+   macros */
+/*
+#ifdef OFFSET
+#undef OFFSET
+#endif
+*/
+#define OFFSET(struct_name, struct_field) \
+   ((ULONG)(&(((struct struct_name *)0)->struct_field)))
+
+/* Use the following macros in the structure definition */
+
+#define INITBYTEDEF(name) \
+   UBYTE name ## _c; UBYTE name ## _o1; UBYTE name ## _o2; \
+   UBYTE name ## _o3; UBYTE name ## _v; UBYTE name ## _p
+#define INITWORDDEF(name) \
+   UBYTE name ## _c; UBYTE name ## _o1; UBYTE name ## _o2; \
+   UWORD name ## _v
+#define INITLONGDEF(name) \
+   UBYTE name ## _c; UBYTE name ## _o1; UBYTE name ## _o2; \
+   ULONG name ## _v
+#define INITPINTDEF(name) \
+   UBYTE name ## _c; UBYTE name ## _o1; UBYTE name ## _o2; \
+   UPINT name ## _v
+
+#define SMALLINITBYTEDEF(name) \
+   UBYTE name ## _c; UBYTE name ## _o; UBYTE name ## _v; UBYTE name ## _p
+#define SMALLINITWORDDEF(name) \
+   UBYTE name ## _c; UBYTE name ## _o; UWORD name ## _v
+#define SMALLINITLONGDEF(name) \
+   UBYTE name ## _c; UBYTE name ## _o; ULONG name ## _v
+#define SMALLINITPINTDEF(name) \
+   UBYTE name ## _c; UBYTE name ## _o; UPINT name ## _v
+
+#define INITENDDEF UBYTE the_end
+
+/* Use the following macros to fill in a structure */
+
+#define NEWINITBYTE(offset, value) \
+   0xe0, (UBYTE)((offset) >> 16), (UBYTE)((offset) >> 8), (UBYTE)(offset), \
+   (UBYTE)(value), 0
+#define NEWINITWORD(offset, value) \
+   0xd0, (UBYTE)((offset) >> 16), (UBYTE)((offset) >> 8), (UBYTE)(offset), \
+   (UWORD)(value)
+#define NEWINITLONG(offset, value) \
+   0xc0, (UBYTE)((offset) >> 16), (UBYTE)((offset) >> 8), (UBYTE)(offset), \
+   (ULONG)(value)
+#define INITPINT(offset, value) \
+   0xc0, (UBYTE)((offset) >> 16), (UBYTE)((offset) >> 8), (UBYTE)(offset), \
+   (UPINT)(value)
+
+#define SMALLINITBYTE(offset, value) \
+   0xa0, (offset), (UBYTE)(value), 0
+#define SMALLINITWORD(offset, value) \
+   0x90, (offset), (UWORD)(value)
+#define SMALLINITLONG(offset, value) \
+   0x80, (offset), (ULONG)(value)
+#define SMALLINITPINT(offset, value) \
+   0x80, (offset), (UPINT)(value)
+
+#define INITEND 0
+
+/* Obsolete definitions */
+
+#define INITBYTE(offset, value) \
+   (0xe000 | ((UWORD)(offset) >> 16)), \
+   (UWORD)(offset), (UWORD)((value) << 8)
+#define INITWORD(offset, value) \
+   (0xd000 | ((UWORD)(offset) >> 16)), (UWORD)(offset), (UWORD)(value)
+#define INITLONG(offset, value) \
+   (0xc000 | ((UWORD)(offset) >> 16)), (UWORD)(offset), \
+   (UWORD)((value) >> 16), (UWORD)(value)
+#define INITAPTR(offset, value) \
+   (0xc000 | ((UWORD)(offset) >> 16)), (UWORD)(offset), \
+   (UWORD)((ULONG)(value) >> 16), (UWORD)(value)
+
+#endif