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engines/glk/scott/unp64/unp64.h

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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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef GLK_SCOTT_UNP64_H
+#define GLK_SCOTT_UNP64_H
+
+namespace Glk {
+namespace Scott {
+
+struct LoadInfo;
+struct CpuCtx;
+
+struct UnpStr {
+	int _idFlag;          /* flag, 1=packer identified; 2=not a packer, stop scanning */
+	int _forced;          /* forced entry point */
+	int _strMem;          /* start of unpacked memory */
+	int _retAdr;          /* return address after unpacking */
+	int _depAdr;          /* unpacker entry point */
+	int _endAdr;          /* end of unpacked memory */
+	int _rtAFrc;          /* flag, return address must be exactly RetAdr, else anything >= RetAdr */
+	int _wrMemF;          /* flag, clean unwritten memory */
+	int _lfMemF;          /* flag, clean end memory leftovers */
+	int _exoFnd;          /* flag, Exomizer detected */ 
+	int _fStack;          /* flag, fill stack with 0 and SP=$ff, else as in C64 */
+	int _ecaFlg;          /* ECA found, holds relocated areas high bytes */
+	int _fEndBf;          /* End memory address pointer before unpacking, set when DepAdr is reached */
+	int _fEndAf;          /* End memory address pointer after  unpacking, set when RetAdr is reached */
+	int _fStrBf;          /* Start memory address pointer before unpacking, set when DepAdr is reached */
+	int _fStrAf;          /* Start memory address pointer after  unpacking, set when RetAdr is reached */
+	int _idOnly;          /* flag, just identify packer and exit */
+	int _debugP;          /* flag, verbosely emit various infos */
+	int _rtiFrc;          /* flag, RTI instruction forces return from unpacker */
+	int _recurs;          /* recursion counter */
+	unsigned int _monEnd;	/* End memory address pointers monitored during execution, updated every time DepAdr is reached */
+	unsigned int _monStr;	/* Start memory address pointers monitored during execution, updated every time DepAdr is reached */
+	unsigned int _mon1st;	/* flag for forcingly assign monitored str/end ptr the 1st time */
+	unsigned int _endAdC;	/* add fixed values and/or registers AXY to End memory address */
+	unsigned int _strAdC;	/* add fixed values and/or registers AXY to Start memory address */
+	unsigned int _filler;	/* Memory filler byte*/
+	unsigned char *_mem;    /* pointer to the memory array */
+	char *_name;            /* name of the prg file */
+	LoadInfo *_info; /* pointer to the loaded prg info struct */
+	CpuCtx *_r;      /* pointer to the registers struct */
+};
+
+typedef void (*Scnptr)(UnpStr *);
+
+#define EA_USE_A 0x01000000
+#define EA_USE_X 0x00100000
+#define EA_USE_Y 0x00010000
+#define EA_ADDFF 0x10000000
+#define ITERMAX 0x02000000
+#define RECUMAX 16
+
+void scanners(UnpStr *);
+
+} // End of namespace Scott
+} // End of namespace Glk
+
+#endif