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uz
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src/ca65/objcode.h
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src/ca65/objcode.h
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/*****************************************************************************/
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/* */
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/* objcode.h */
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/* */
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/* Objectcode management for the ca65 macroassembler */
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/* */
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/* */
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/* */
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/* (C) 1998-2000 Ullrich von Bassewitz */
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/* Wacholderweg 14 */
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/* D-70597 Stuttgart */
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/* EMail: uz@musoftware.de */
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/* */
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/* */
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/* This software is provided 'as-is', without any expressed or implied */
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/* warranty. In no event will the authors be held liable for any damages */
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/* arising from the use of this software. */
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/* */
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/* Permission is granted to anyone to use this software for any purpose, */
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/* including commercial applications, and to alter it and redistribute it */
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/* freely, subject to the following restrictions: */
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/* */
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/* 1. The origin of this software must not be misrepresented; you must not */
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/* claim that you wrote the original software. If you use this software */
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/* in a product, an acknowledgment in the product documentation would be */
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/* appreciated but is not required. */
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/* 2. Altered source versions must be plainly marked as such, and must not */
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/* be misrepresented as being the original software. */
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/* 3. This notice may not be removed or altered from any source */
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/* distribution. */
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/* */
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/*****************************************************************************/
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#ifndef OBJCODE_H
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#define OBJCODE_H
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#include "../common/segdefs.h"
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#include "expr.h"
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/*****************************************************************************/
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/* Data */
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/*****************************************************************************/
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/* Are we in absolute mode or in relocatable mode? */
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extern int RelocMode;
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/*****************************************************************************/
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/* Segment management */
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/*****************************************************************************/
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void UseCodeSeg (void);
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/* Use the code segment */
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void UseRODataSeg (void);
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/* Use the r/o data segment */
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void UseDataSeg (void);
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/* Use the data segment */
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void UseBssSeg (void);
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/* Use the BSS segment */
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void UseZeropageSeg (void);
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/* Use the zero page segment */
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void UseNullSeg (void);
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/* Use the null segment */
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void UseSeg (const char* Name, unsigned SegType);
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/* Use the segment with the given name */
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unsigned GetSegNum (void);
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/* Get the number of the current segment */
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void SegAlign (unsigned Power, int Val);
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/* Align the PC segment to 2^Power. If Val is -1, emit fill fragments (the
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* actual fill value will be determined by the linker), otherwise use the
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* given value.
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*/
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int IsZPSeg (void);
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/* Return true if the current segment is a zeropage segment */
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int IsFarSeg (void);
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/* Return true if the current segment is a far segment */
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unsigned GetSegType (unsigned SegNum);
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/* Return the type of the segment with the given number */
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unsigned long GetPC (void);
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/* Get the program counter of the current segment */
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void SetAbsPC (unsigned long AbsPC);
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/* Set the program counter in absolute mode */
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void SegCheck (void);
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/* Check the segments for range and other errors */
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void SegDump (void);
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/* Dump the contents of all segments */
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void WriteSegments (void);
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/* Write the segment data to the object file */
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/*****************************************************************************/
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/* Code */
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/*****************************************************************************/
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void Emit0 (unsigned char OPC);
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/* Emit an instruction with a zero sized operand */
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void Emit1 (unsigned char OPC, ExprNode* Value);
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/* Emit an instruction with an one byte argument */
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void Emit2 (unsigned char OPC, ExprNode* Value);
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/* Emit an instruction with a two byte argument */
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void Emit3 (unsigned char OPC, ExprNode* Expr);
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/* Emit an instruction with a three byte argument */
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void Emit3b (unsigned char OPC, ExprNode* Expr, ExprNode* Bank);
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/* Emit an instruction with a three byte argument and separate bank */
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void EmitPCRel (unsigned char OPC, ExprNode* Expr, unsigned Size);
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/* Emit an opcode with a PC relative argument of one or two bytes */
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void EmitData (const unsigned char* Data, unsigned Size);
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/* Emit data into the current segment */
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void EmitByte (ExprNode* Expr);
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/* Emit one byte */
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void EmitWord (ExprNode* Expr);
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/* Emit one word */
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void EmitFarAddr (ExprNode* Expr);
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/* Emit a 24 bit expression */
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void EmitDWord (ExprNode* Expr);
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/* Emit one dword */
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void EmitFill (unsigned long Count);
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/* Emit Count fill bytes */
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/* End of objcode.h */
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#endif
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