2007-03-27 17:47:10 +00:00
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/*
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* CiderPress
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* Copyright (C) 2007 by faddenSoft, LLC. All Rights Reserved.
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* See the file LICENSE for distribution terms.
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*/
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/*
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* 6502/65C02/65802/65816 disassembly.
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*
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* Lots of credit to the classic "Programming the 65816" book by David Eyes
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* and Ron Lichty.
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*/
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Large set of changes to restore CiderPress build.
CiderPress and MDC now compile, and execute far enough to open
their respective "about" boxes, but I doubt they'll do much
more than that.
* Switch from MBCS to UNICODE APIs
Microsoft switched to UTF-16 (by way of UCS-2) a long time ago,
and the support for MBCS seems to be getting phased out. So it's
time to switch to wide strings.
This is a bit awkward for CiderPress because it works with disk
and file archives with 8-bit filenames, and I want NufxLib and
DiskImgLib to continue to work on Linux (which has largely taken
the UTF-8 approach to Unicode). The libraries will continue to
work with 8-bit filenames, with CiderPress/MDC doing the
conversion at the appropriate point.
There were a couple of places where strings from a structure
handed back by one of the libraries were used directly in the UI,
or vice-versa, which is a problem because we have nowhere to
store the result of the conversion. These currently have fixed
place-holder "xyzzy" strings.
All UI strings are now wide.
Various format strings now use "%ls" and "%hs" to explicitly
specify wide and narrow. This doesn't play well with gcc, so
only the Windows-specific parts use those.
* Various updates to vcxproj files
The project-file conversion had some cruft that is now largely
gone. The build now has a common output directory for the EXEs
and libraries, avoiding the old post-build copy steps.
* Added zlib 1.2.8 and nufxlib 2.2.2 source snapshots
The old "prebuilts" directory is now gone. The libraries are now
built as part of building the apps.
I added a minimal set of files for zlib, and a full set for nufxlib.
The Linux-specific nufxlib goodies are included for the benefit of
the Linux utilities, which are currently broken (don't build).
* Replace symbols used for include guards
Symbols with a leading "__" are reserved.
2014-11-10 23:32:55 +00:00
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#ifndef REFORMAT_DISASM_H
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#define REFORMAT_DISASM_H
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2007-03-27 17:47:10 +00:00
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#include "ReformatBase.h"
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/*
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* Disassembly base class. Common code and data for all formats.
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*/
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class ReformatDisasm65xxx : public ReformatText {
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public:
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2014-11-04 00:26:53 +00:00
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ReformatDisasm65xxx(void) {
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fOneByteBrkCop = false;
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ValidateOpMap();
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ValidateOpCodeDetails();
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}
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virtual ~ReformatDisasm65xxx(void) {}
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/*
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* OpCode enumeration, must fit in 0-255.
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*/
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typedef enum OpCode {
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kOpCodeUnknown = 0,
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kOpADC, kOpAND, kOpASL, kOpBCC,
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kOpBCS, kOpBEQ, kOpBIT, kOpBMI,
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kOpBNE, kOpBPL, kOpBRA, kOpBRK,
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kOpBRL, kOpBVC, kOpBVS, kOpCLC,
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kOpCLD, kOpCLI, kOpCLV, kOpCMP,
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kOpCOP, kOpCPX, kOpCPY, kOpDEC,
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kOpDEX, kOpDEY, kOpEOR, kOpINC,
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kOpINX, kOpINY, kOpJML, kOpJMP,
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kOpJSL, kOpJSR, kOpLDA, kOpLDX,
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kOpLDY, kOpLSR, kOpMVN, kOpMVP,
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kOpNOP, kOpORA, kOpPEA, kOpPEI,
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kOpPER, kOpPHA, kOpPHB, kOpPHD,
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kOpPHK, kOpPHP, kOpPHX, kOpPHY,
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kOpPLA, kOpPLB, kOpPLD, kOpPLP,
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kOpPLX, kOpPLY, kOpREP, kOpROL,
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kOpROR, kOpRTI, kOpRTL, kOpRTS,
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kOpSBC, kOpSEC, kOpSED, kOpSEI,
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kOpSEP, kOpSTA, kOpSTP, kOpSTX,
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kOpSTY, kOpSTZ, kOpTAX, kOpTAY,
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kOpTCD, kOpTCS, kOpTDC, kOpTRB,
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kOpTSB, kOpTSC, kOpTSX, kOpTXA,
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kOpTXS, kOpTXY, kOpTYA, kOpTYX,
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kOpWAI, kOpWDM, kOpXBA, kOpXCE,
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kOpCodeMAX
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} OpCode;
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/*
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* Address mode enumeration, must fit in 0-255.
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*/
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typedef enum AddrMode {
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kAddrModeUnknown = 0,
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kAddrAbs,
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kAddrAbsIndexX,
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kAddrAbsIndexY,
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kAddrAbsIndexXInd,
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kAddrAbsInd,
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kAddrAbsIndLong,
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kAddrAbsLong,
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kAddrAbsIndexXLong,
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kAddrAcc,
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kAddrBlockMove,
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kAddrDP,
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kAddrDPIndexX,
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kAddrDPIndexY,
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kAddrDPIndexXInd,
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kAddrDPInd,
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kAddrDPIndLong,
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kAddrDPIndIndexY,
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kAddrDPIndIndexYLong,
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kAddrImm,
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kAddrImplied,
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kAddrPCRel,
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kAddrPCRelLong,
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kAddrStackAbs,
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kAddrStackDPInd,
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kAddrStackInt,
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kAddrStackPCRel,
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kAddrStackPull,
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kAddrStackPush,
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kAddrStackRTI,
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kAddrStackRTL,
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kAddrStackRTS,
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kAddrStackRel,
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kAddrStackRelIndexY,
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kAddrWDM,
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kAddrModeMAX
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} AddrMode;
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/*
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* Specify the CPU to emulate when disassembling.
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*/
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typedef enum CPU {
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kCPU6502,
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kCPU65C02,
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kCPU65802,
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kCPU65816,
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kCPUCount
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} CPU;
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2007-03-27 17:47:10 +00:00
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protected:
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2014-11-04 00:26:53 +00:00
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/*
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* Table mapping instruction byte values to an opcode and address mode.
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*
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* There are 256 entries, each of which is a combination of OpCode and
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* AddrMode.
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*/
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typedef struct OpMap {
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int opAndAddr[kCPUCount];
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} OpMap;
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/*
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* We have a table of these, with one entry in the table for each
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* entry in the OpCode enum. We use a 1:1 mapping, so it's vital that
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* the entries line up.
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*/
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typedef struct OpCodeDetails {
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OpCode opCode; // sanity check
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char mnemonic[4]; // 3-letter mnemonic
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} OpCodeDetails;
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bool fOneByteBrkCop;
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/*
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* Output one or more lines of code in a manner appropriate for a
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* monitor listing on an 8-bit machine. Returns the #of bytes consumed.
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*/
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2014-11-21 02:10:18 +00:00
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int OutputMonitor8(const uint8_t* srcBuf, long srcLen,
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long backState, uint16_t addr);
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int OutputMonitor16(const uint8_t* srcBuf, long srcLen,
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long backState, uint32_t addr, bool shortRegs);
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2007-03-27 17:47:10 +00:00
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private:
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2014-11-04 00:26:53 +00:00
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bool ValidateOpMap(void);
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static const OpMap kOpMap[];
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bool ValidateOpCodeDetails(void);
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static const OpCodeDetails kOpCodeDetails[];
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2014-11-21 02:10:18 +00:00
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inline uint16_t RelOffset(uint16_t addr, uint8_t off) {
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int8_t shift = (int8_t) off; // offset is signed
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2014-11-04 00:26:53 +00:00
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return addr +2 + shift;
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}
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2014-11-21 02:10:18 +00:00
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inline uint16_t RelLongOffset(uint16_t addr, uint16_t off) {
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int16_t shift = (int16_t) off; // offset is signed
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2014-11-04 00:26:53 +00:00
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return addr +3 + shift;
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}
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enum {
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kMaxByteConsumption = 4, // max #of bytes for one output
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};
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int GetOpWidth(OpCode opCode, AddrMode addrMode, CPU cpu,
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bool emul, bool shortM, bool shortX);
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2014-11-21 02:10:18 +00:00
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bool IsP8Call(const uint8_t* srcBuf, long srcLen);
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bool IsToolboxCall(const uint8_t* srcBuf, long srcLen,
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2014-11-04 00:26:53 +00:00
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long backState);
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2014-11-21 02:10:18 +00:00
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bool IsInlineGSOS(const uint8_t* srcBuf, long srcLen);
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bool IsStackGSOS(const uint8_t* srcBuf, long srcLen,
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2014-11-04 00:26:53 +00:00
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long backState);
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void PrintMonitor8Line(OpCode opCode, AddrMode addrMode,
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2014-11-21 02:10:18 +00:00
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uint16_t addr, const uint8_t* srcBuf, long srcLen,
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2014-11-04 00:26:53 +00:00
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const char* comment);
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void PrintMonitor16Line(OpCode opCode, AddrMode addrMode,
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2014-11-21 02:10:18 +00:00
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uint32_t addr, const uint8_t* srcBuf, long srcLen,
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2014-11-04 00:26:53 +00:00
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const char* comment);
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/* 24-bit address helpers */
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2014-11-21 02:10:18 +00:00
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inline uint8_t Bank(uint32_t addr) {
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return (uint8_t) ((addr >> 16) & 0xff);
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2014-11-04 00:26:53 +00:00
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}
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2014-11-21 02:10:18 +00:00
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inline uint16_t Offset(uint32_t addr) {
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return (uint16_t) (addr & 0xffff);
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2014-11-04 00:26:53 +00:00
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}
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2007-03-27 17:47:10 +00:00
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};
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/*
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* 8-bit code disassembly.
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*
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* Used for DOS 'B' files and ProDOS BIN/SYS.
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*/
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class ReformatDisasm8 : public ReformatDisasm65xxx {
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public:
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2014-11-04 00:26:53 +00:00
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ReformatDisasm8(void) {}
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virtual ~ReformatDisasm8(void) {}
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2007-03-27 17:47:10 +00:00
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2014-11-25 22:34:14 +00:00
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virtual void Examine(ReformatHolder* pHolder) override;
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2014-11-04 00:26:53 +00:00
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virtual int Process(const ReformatHolder* pHolder,
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ReformatHolder::ReformatID id, ReformatHolder::ReformatPart part,
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2014-11-25 22:34:14 +00:00
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ReformatOutput* pOutput) override;
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2007-03-27 17:47:10 +00:00
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};
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/*
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* This holds an OMF segment header, and abstracts away version
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* differences.
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*/
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class OMFSegmentHeader {
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public:
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2014-11-04 00:26:53 +00:00
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OMFSegmentHeader(void) : fReady(false) {}
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virtual ~OMFSegmentHeader(void) {}
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2014-11-21 02:10:18 +00:00
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bool Unpack(const uint8_t* srcBuf, long srcLen, int fileType);
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2014-11-04 00:26:53 +00:00
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void Dump(void) const;
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typedef enum SegmentType {
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kTypeCode = 0x00,
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kTypeData = 0x01,
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kTypeJumpTable = 0x02,
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kTypePathName = 0x04,
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kTypeLibraryDict = 0x08,
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kTypeInit = 0x10,
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kTypeAbsoluteBank = 0x11,
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kTypeDPStack = 0x12,
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} SegmentType;
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typedef enum SegmentFlag {
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kFlagBankRelative,
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kFlagSkip,
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kFlagReload,
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kFlagAbsoluteBank,
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kFlagNoSpecialMem,
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kFlagPositionIndep,
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kFlagPrivate,
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kFlagDynamic,
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} SegmentFlag;
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2014-11-21 02:10:18 +00:00
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uint8_t GetVersion(void) const { return fVersion; }
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uint32_t GetSegmentLen(void) const { return fByteCnt; }
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2014-11-04 00:26:53 +00:00
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SegmentType GetSegmentType(void) const;
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bool GetSegmentFlag(SegmentFlag flag) const;
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2014-11-21 02:10:18 +00:00
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uint16_t GetSegNum(void) const { return fSegNum; }
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uint8_t GetLabLen(void) const { return fLabLen; }
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uint8_t GetNumLen(void) const { return fNumLen; }
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uint16_t GetDispData(void) const { return fDispData; }
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2014-11-04 00:26:53 +00:00
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const char* GetLoadName(void) const { return (const char*) fLoadName; }
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const char* GetSegName(void) const { return (const char*) fSegName; }
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// some of these must be public in VC++6.0
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enum {
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kMaxVersion = 2, // v0/1/2 == OMF 1.0 / 2.0 / 2.1
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kLoadNameLen = 10,
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kV0HdrMinSize = 0x25,
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kV1HdrMinSize = 0x2c + kLoadNameLen,
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kV2HdrMinSize = 0x30 + kLoadNameLen,
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kHdrMinSize = kV0HdrMinSize, // smallest of the three
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kExpectedNumLen = 4,
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kExpectedBankSize = 65536,
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kSegNameLen = 255,
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};
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2007-03-27 17:47:10 +00:00
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private:
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2014-11-04 00:26:53 +00:00
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bool fReady;
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2014-11-21 02:10:18 +00:00
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inline uint16_t Get16LE(const uint8_t* buf) {
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2014-11-04 00:26:53 +00:00
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return *buf | *(buf+1) << 8;
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}
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2014-11-21 02:10:18 +00:00
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inline uint32_t Get32LE(const uint8_t* buf) {
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2014-11-04 00:26:53 +00:00
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return *buf | *(buf+1) << 8 | *(buf+2) << 16 | *(buf+3) << 24;
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}
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2014-11-21 02:10:18 +00:00
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uint32_t fBlockCnt; // v0/v1
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uint32_t fByteCnt; // v2
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uint32_t fResSpc;
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uint32_t fLength;
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uint8_t fType; // v0/v1
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uint8_t fLabLen;
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uint8_t fNumLen; // (always 4)
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uint8_t fVersion; // (0, 1, or 2)
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uint32_t fBankSize; // (always 65536)
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uint16_t fKind; // v2
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uint32_t fOrg;
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uint32_t fAlign;
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uint8_t fNumSex;
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uint8_t fLCBank; // v1
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uint16_t fSegNum; // v1/v2
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uint32_t fEntry; // v1/v2
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uint16_t fDispName; // v1/v2
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uint16_t fDispData; // v1/v2
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uint32_t fTempOrg; // v2
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uint8_t fLoadName[kLoadNameLen + 1]; // 10 chars, space-padded
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uint8_t fSegName[kSegNameLen + 1]; // 1-255 chars
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2007-03-27 17:47:10 +00:00
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};
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#if 0
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/*
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* Constants and functions for manipulating an OMF segment.
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*/
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class OMFSegment {
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public:
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2014-11-18 05:13:13 +00:00
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OMFSegment(void) : fSegBuf(NULL), fSegLen(-1), fCurPtr(NULL),
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2014-11-04 00:26:53 +00:00
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fNumLen(-1), fLabLen(-1)
|
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|
{}
|
|
|
|
virtual ~OMFSegment(void) {}
|
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|
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|
2014-11-21 02:10:18 +00:00
|
|
|
void Setup(const OMFSegmentHeader* pSegHdr, const uint8_t* srcBuf,
|
2014-11-04 00:26:53 +00:00
|
|
|
long srcLen);
|
2014-11-21 02:10:18 +00:00
|
|
|
const uint8_t* ProcessNextChunk(void);
|
2014-11-04 00:26:53 +00:00
|
|
|
|
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|
|
/*
|
|
|
|
* Segment op codes.
|
|
|
|
*/
|
|
|
|
typedef enum SegmentOp {
|
|
|
|
kSegOpEND = 0x00, // all
|
|
|
|
kSegOpCONSTStart = 0x01, // object
|
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|
|
kSegOpCONSTEnd = 0xdf, // object
|
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|
|
kSegOpALIGN = 0xe0, // object
|
|
|
|
kSegOpORG = 0xe1, // org
|
|
|
|
kSegOpRELOC = 0xe2, // load
|
|
|
|
kSegOpINTERSEG = 0xe3, // load
|
|
|
|
kSegOpUSING = 0xe4, // object
|
|
|
|
kSegOpSTRONG = 0xe5, // object
|
|
|
|
kSegOpGLOBAL = 0xe6, // object
|
|
|
|
kSegOpGEQU = 0xe7, // object
|
|
|
|
kSegOpMEM = 0xe8, // object
|
|
|
|
// 0xe9, 0xea unused
|
|
|
|
kSegOpEXPR = 0xeb, // object
|
|
|
|
kSegOpZEXPR = 0xec, // object
|
|
|
|
kSegOpBEXPR = 0xed, // object
|
|
|
|
kSegOpRELEXPR = 0xee, // object
|
|
|
|
kSegOpLOCAL = 0xef, // object
|
|
|
|
kSegOpEQU = 0xf0, // object
|
|
|
|
kSegOpDS = 0xf1, // all
|
|
|
|
kSegOpLCONST = 0xf2, // all
|
|
|
|
kSegOpLEXPR = 0xf3, // object
|
|
|
|
kSegOpENTRY = 0xf4, // RTL
|
|
|
|
kSegOpcRELOC = 0xf5, // load
|
|
|
|
kSegOpcINTERSEG = 0xf6, // load
|
|
|
|
kSegOpSUPER = 0xf7, // load
|
|
|
|
|
|
|
|
kSegOpGeneral = 0xfb, // reserved
|
|
|
|
kSegOpExperimental1 = 0xfc, // reserved
|
|
|
|
kSegOpExperimental2 = 0xfd, // reserved
|
|
|
|
kSegOpExperimental3 = 0xfe, // reserved
|
|
|
|
kSegOpExperimental4 = 0xff, // reserved
|
|
|
|
} SegmentOp;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Expression operands.
|
|
|
|
*/
|
|
|
|
typedef enum ExprOp {
|
|
|
|
kExprOpEnd = 0x00,
|
|
|
|
kExprOpAddition = 0x01,
|
|
|
|
kExprOpSubtraction = 0x02,
|
|
|
|
kExprOpMultiplication = 0x03,
|
|
|
|
kExprOpDivision = 0x04,
|
|
|
|
kExprOpIntegerRemainder = 0x05,
|
|
|
|
kExprOpUnaryNegation = 0x06,
|
|
|
|
kExprOpBitShift = 0x07,
|
|
|
|
kExprOpAND = 0x08,
|
|
|
|
kExprOpOR = 0x09,
|
|
|
|
kExprOpEOR = 0x0a,
|
|
|
|
kExprOpNOT = 0x0b,
|
|
|
|
kExprOpLessThenEqualTo = 0x0c,
|
|
|
|
kExprOpGreaterThanEqualTo = 0x0d,
|
|
|
|
kExprOpNotEqual = 0x0e,
|
|
|
|
kExprOpLessThan = 0x0f,
|
|
|
|
kExprOpGreaterThan = 0x10,
|
|
|
|
kExprOpEqualTo = 0x11,
|
|
|
|
kExprOpBitAND = 0x12,
|
|
|
|
kExprOpBitOR = 0x13,
|
|
|
|
kExprOpBitEOR = 0x14,
|
|
|
|
kExprOpBitNOT = 0x15,
|
|
|
|
|
|
|
|
kExprOpPushLocation = 0x80,
|
|
|
|
kExprOpPushConstant = 0x81,
|
|
|
|
kExprOpPushLabelWeak = 0x82,
|
|
|
|
kExprOpPushLabelValue = 0x83,
|
|
|
|
kExprOpPushLabelLength = 0x84,
|
|
|
|
kExprOpPushLabelType = 0x85,
|
|
|
|
kExprOpPushLabelCount = 0x86,
|
|
|
|
kExprOpPushRelOffset = 0x87,
|
|
|
|
} ExprOp;
|
2007-03-27 17:47:10 +00:00
|
|
|
|
|
|
|
private:
|
2014-11-21 02:10:18 +00:00
|
|
|
// inline uint16_t Get16LE(const uint8_t* buf) {
|
2014-11-04 00:26:53 +00:00
|
|
|
// return *buf | *(buf+1) << 8;
|
|
|
|
// }
|
2014-11-21 02:10:18 +00:00
|
|
|
inline uint32_t Get32LE(const uint8_t* buf) {
|
2014-11-04 00:26:53 +00:00
|
|
|
return *buf | *(buf+1) << 8 | *(buf+2) << 16 | *(buf+3) << 24;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Given a pointer to the start of a label, return the label's len.
|
|
|
|
* The length returned includes the length byte (if present).
|
|
|
|
*/
|
2014-11-21 02:10:18 +00:00
|
|
|
int LabelLength(const uint8_t* ptr) {
|
2014-11-04 00:26:53 +00:00
|
|
|
if (fLabLen != 0)
|
|
|
|
return fLabLen;
|
|
|
|
else
|
|
|
|
return (*ptr) +1;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* determine the length of an expression */
|
2014-11-21 02:10:18 +00:00
|
|
|
int ExpressionLength(const uint8_t* ptr);
|
2014-11-04 00:26:53 +00:00
|
|
|
|
2014-11-21 02:10:18 +00:00
|
|
|
const uint8_t* fSegBuf;
|
2014-11-04 00:26:53 +00:00
|
|
|
long fSegLen;
|
|
|
|
|
2014-11-21 02:10:18 +00:00
|
|
|
const uint8_t* fCurPtr;
|
2014-11-04 00:26:53 +00:00
|
|
|
int fNumLen;
|
|
|
|
int fLabLen;
|
2007-03-27 17:47:10 +00:00
|
|
|
};
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
* 16-bit code disassembly.
|
|
|
|
*
|
|
|
|
* Used for GS/OS S16, EXE, PIF, and others.
|
|
|
|
*
|
|
|
|
* OMF information comes from Appendix F of the Apple IIgs GS/OS Reference
|
|
|
|
* manual and Appendix B of the Orca/M assembler manual.
|
|
|
|
*/
|
|
|
|
class ReformatDisasm16 : public ReformatDisasm65xxx {
|
|
|
|
public:
|
2014-11-04 00:26:53 +00:00
|
|
|
ReformatDisasm16(void) {}
|
|
|
|
virtual ~ReformatDisasm16(void) {}
|
2007-03-27 17:47:10 +00:00
|
|
|
|
2014-11-25 22:34:14 +00:00
|
|
|
virtual void Examine(ReformatHolder* pHolder) override;
|
2014-11-04 00:26:53 +00:00
|
|
|
virtual int Process(const ReformatHolder* pHolder,
|
|
|
|
ReformatHolder::ReformatID id, ReformatHolder::ReformatPart part,
|
2014-11-25 22:34:14 +00:00
|
|
|
ReformatOutput* pOutput) override;
|
2007-03-27 17:47:10 +00:00
|
|
|
|
|
|
|
private:
|
2014-11-21 02:10:18 +00:00
|
|
|
void OutputSection(const uint8_t* srcBuf, long srcLen,
|
|
|
|
uint32_t addr, bool shortRegs);
|
|
|
|
bool OutputOMF(const uint8_t* srcBuf, long srcLen,
|
2014-11-04 00:26:53 +00:00
|
|
|
long fileType, bool shortRegs);
|
|
|
|
void PrintHeader(const OMFSegmentHeader* pSegHdr,
|
|
|
|
int segmentNumber, bool longFmt);
|
|
|
|
void PrintSegment(const OMFSegmentHeader* pSegHdr,
|
2014-11-21 02:10:18 +00:00
|
|
|
const uint8_t* srcBuf, long srcLen, bool shortRegs);
|
2007-03-27 17:47:10 +00:00
|
|
|
};
|
|
|
|
|
Large set of changes to restore CiderPress build.
CiderPress and MDC now compile, and execute far enough to open
their respective "about" boxes, but I doubt they'll do much
more than that.
* Switch from MBCS to UNICODE APIs
Microsoft switched to UTF-16 (by way of UCS-2) a long time ago,
and the support for MBCS seems to be getting phased out. So it's
time to switch to wide strings.
This is a bit awkward for CiderPress because it works with disk
and file archives with 8-bit filenames, and I want NufxLib and
DiskImgLib to continue to work on Linux (which has largely taken
the UTF-8 approach to Unicode). The libraries will continue to
work with 8-bit filenames, with CiderPress/MDC doing the
conversion at the appropriate point.
There were a couple of places where strings from a structure
handed back by one of the libraries were used directly in the UI,
or vice-versa, which is a problem because we have nowhere to
store the result of the conversion. These currently have fixed
place-holder "xyzzy" strings.
All UI strings are now wide.
Various format strings now use "%ls" and "%hs" to explicitly
specify wide and narrow. This doesn't play well with gcc, so
only the Windows-specific parts use those.
* Various updates to vcxproj files
The project-file conversion had some cruft that is now largely
gone. The build now has a common output directory for the EXEs
and libraries, avoiding the old post-build copy steps.
* Added zlib 1.2.8 and nufxlib 2.2.2 source snapshots
The old "prebuilts" directory is now gone. The libraries are now
built as part of building the apps.
I added a minimal set of files for zlib, and a full set for nufxlib.
The Linux-specific nufxlib goodies are included for the benefit of
the Linux utilities, which are currently broken (don't build).
* Replace symbols used for include guards
Symbols with a leading "__" are reserved.
2014-11-10 23:32:55 +00:00
|
|
|
#endif /*REFORMAT_DISASM_H*/
|