vAVRdisasm 2.0

An AVR program disassembler.
  2 Screenshots
vAVRdisasm is an AVR program disassembler. The project supports all 136 AVR instructions as defined by the Atmel AVR Instruction Set, revision 0856E-AVR-11/05.

This single-pass disassembler can handle Atmel Generic, Intel HEX8, and Motorola S-Record formatted files containing valid AVR program binaries.

vAVRdisasm should work on most *nix platform, including a Cygwin environment. vAVRdisasm was written in C by Vanya A. Sergeev - vsergeev at gmail, and tested with the GNU C Compiler.

Main features:

  • Printing the instruction addresses alongside disassembly, enabled by default
  • Printing of the destination comments of relative branch/jump/call instructions, enabled by default
  • Ghetto Address Labels (see “Ghetto Address Labels” section)
  • Formatting data constants in different bases (hexadecimal, binary, decimal)
  • .DW data word directive for data not recognized as an instruction during disassembly.

last updated on:
September 26th, 2011, 8:38 GMT
license type:
GPL (GNU General Public License) 
developed by:
Vanya A. Sergeev
ROOT \ Programming \ Disassemblers
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What's New in This Release:
  • Changed address operand formatting for LDS, STS, JMP, and CALL instructions from byte addreses to word addresses, to make vAVRdisasm's output compatible with AVR assemblers.
  • Fixed signed relative branch/jump decoding: jumps in the reverse direction are now correctly decoded.
  • Thanks to Graham Carnell for the above two fixes!
  • Upgraded license from GPLv2 to GPLv3.
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