Automated re-coding of assembly language in C

MicroAPL Ltd, creators of the well-known PortAsm assembly-language
translation tool, today announced the launch of Relogix, an advanced new
software conversion tool which can take assembly-language source files and
automatically re-code them in readable, maintainable C, complete with
meaningful variable names and types.

Unlike most other attempts at automatic conversion from assembler to C,
Relogix produces results close to what a skilled human programmer would
produce if asked to re-write an assembler source file in C. Relogix
achieves this by:

– Reorganizing the program flow to use natural C constructs such as ‘if’,
‘for’ and ‘case’ statements, usually without recourse to ‘goto’. Even
‘spaghetti’ code comes out as well-structured C source.

– Automatically deducing function prototypes in a natural C style.
Parameters originally passed to assembler subroutines either in registers
or on the stack become parameters to the corresponding C function, rather
than being left as global variables.

– Analyzing the use of register- and memory-based data to select valid C
data types for local and global variables, including automatic detection of
structures and unions.

– Eliminating unused variables and combining multiple assembler statements
into one, readable C line.

– Selecting meaningful names for variables which were originally
represented in registers or on the stack. It does this by a unique
algorithm which chooses names not only by analyzing the usage, type and
origin of data, but also by examining comments in the original source file.

– Intelligently carrying over comments from the assembler source into the
translated C source, even where the code flow has been substantially
changed during the translation.

Relogix is initially available for translation of 680×0-family assembly
language, with a version to translate x86 assembler following soon. Other
architectures will be supported later. It will be sold both as a standalone
tool and as a cost-effective porting service over the internet. MicroAPL
will also offer traditional consultancy services based on the Relogix

Further information and sample translations can be found on the MicroAPL
web site

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