HT Editor 2.0.16

HT Editor 2.0.16 is a powerful software for file administration. For more information please read the description below.

This program is a file viewer, editor and analyzer for text, binary, and (especially) executable files. The target is to make a combination between the low-level functionality of a debugger and the usability of IDEs. We plan to implement all (hex-)editing features and support of the most important file formats.

HT contains a very powerful expression evaluator which is used in all dialogs where expressions are expected. These are mainly blockoperation, goto, search and of course evaluate itself (Edit->Evaluate).

You can use all standard math operators (+ - / * % **), logical operators (! && || ^^), relational operators (== != < > <= >=), bit operators (~ & | ^), string operators (. for concatenation), parenthesis, the ternary operator (a?b:c), functions and symbols (both depending on context).

The evaluator uses integer, string and float types depending on context. You can always convert a result via the int(), string() and float() functions to appropriate type. Try Edit->Evaluate to see how it works...

You can always use the standard built-in math (round, sin, random, etc.) and string (strcmp, strchr, sprintf, etc.) functions, they work more or less like the corresponding C functions (actually they ARE more or less wrappers for them); see eval/eval.y for details (sorry but a detailed help would get outdated rather soon). When using Siehe Block operations, or searching you have some context depending functions and symbols; see these sections for explanation. 

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License version 2 as published by the Free Software Foundation.
HT is distributed under the terms of the GPL.

Major Features:

1. Supported file formats
   • common object file format (COFF/XCOFF32)
     - header
     - image with code/data analyser (x86)
   • executable and linkable format (ELF)
     - header
     - section headers
     - program headers
     - symbol tables
     - image with code/data analyser (x86, AMD64, IA-64, Alpha, PowerPC, ARM) and relocations
   • linear executables (LE)
     - header
     - VxD descriptor
     - object table
     - page table
     - image with code/data analyser (x86)
     - auto-relocation layer (only internal refs for now)
   • standard dos executables (MZ)
     - header
     - relocations
     - image (disassembly only)
   • new executables (NE)
     - header
     - segments
     - names
     - entrypoints
     - image with code/data analyser (x86)
     - auto-relocation layer (pretty complete)
   • portable executables (PE32, PE64)
     - header
     - import section
     - delay-import section
     - export section
     - resources
     - image with code/data analyser (x86, AMD64, IA-64, Alpha, ARM)
     - preliminary support for .net executables
   • java class files (CLASS)
     - header
     - image with code/data analyser (java bytecode disassembler)
   • Mach exe/link format (MachO)
     - header
     - image with code/data analyser (x86, PowerPC)
     
   • X-Box executable (XBE)
     - header
     - imports
     - image with code/data analyser (x86)
     
   • Flat (FLT)
     - header
     - image with data analyser (no disassembler yet)
     
   • PowerPC executable format (PEF)
     - header
     - imports - image with code/data analyser (PowerPC)
     
   • Still some to be implemented (M$-OBJ, ARCH, LX)
2. Code & Data Analyser
   - finds branch sources and destinations recursively
   - finds procedure entries
   - creates labels based on this information
   - creates xref information
   - allows to interactively analyse unexplored code (press 'c')
   - allows to create/rename/delete labels (press 'n')
   - allows to create/edit comments (press '#')
3. Target systems
   - DJGPP
   - GNU/Linux
   - FreeBSD
   - Win32