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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program 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 General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* $URL$
* $Id$
*
*/
/* Kernel compatibility #defines to pre-GLUTTON times */
#ifndef _SCI_KERNEL_COMPAT_
#define _SCI_KERNEL_COMPAT_
#ifdef __GNUC__XX
#warning "Old kernel compatibility crap"
#endif
/* Minimal heap position */
#define HEAP_MIN 800
#define GET_HEAP(address) ((((guint16)(address)) < HEAP_MIN)? \
KERNEL_OOPS("Heap address space violation on read") \
: getHeapInt16(s->heap, ((guint16)(address))))
/* Reads a heap value if allowed */
#define UGET_HEAP(address) ((((guint16)(address)) < HEAP_MIN)? \
KERNEL_OOPS("Heap address space violation on read") \
: getHeapUInt16(s->heap, ((guint16)(address))))
/* Reads a heap value if allowed */
#define PUT_HEAP(address, value) { if (((guint16)(address)) < HEAP_MIN) \
KERNEL_OOPS("Heap address space violation on write"); \
else { s->heap[((guint16)(address))] = (value) &0xff; \
s->heap[((guint16)(address)) + 1] = ((value) >> 8) & 0xff;} \
if ((address) & 1) \
sciprintf("Warning: Unaligned write to %04x\n", (address) & 0xffff); }
/* Sets a heap value if allowed */
static inline int
getHeapInt16(unsigned char *base, int address) {
if (address & 1)
sciprintf("Warning: Unaligned read from %04x\n", (address) & 0xffff);
return getInt16(base + address);
}
static inline unsigned int
getHeapUInt16(unsigned char *base, int address) {
if (address & 1)
sciprintf("Warning: Unaligned unsigned read from %04x\n", (address) & 0xffff);
return getUInt16(base + address);
}
#endif /* !_SCI_KERNEL_COMPAT_ */
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