|RTL/2 to C Translator firstname.lastname@example.org (Kausalius, Walter) (2005-07-28)|
|RTL/2 to C/C++ translator email@example.com (Willy Jacobs) (1994-06-13)|
|RTL/2 to C Translator Roger@natron.demon.co.uk (1994-06-16)|
|From:||Roger@natron.demon.co.uk (Roger Barnett)|
|Date:||Thu, 16 Jun 1994 22:57:03 GMT|
RTOC - The RTL/2 to C Translator
RTOC provides a solution to the problem of porting existing RTL/2
applications and systems to new hardware and software environments by
translating all valid RTL/2 source constructs (other than assembler code
inserts) into the more widely available language C.
RTOC gives the user control over their porting strategy by supporting
two different approaches:
- to retain their original RTL/2 files as the "master copy" to which
all changes are made, taking advantage of the inherent strengths of
RTL/2 such as its simplicity and maintainability, in which case they
can use RTOC to generate C modules which will obey the RTL/2 rules of
runtime behaviour (i.e. use RTOC as a cross-compiler generating code
to run on a whole range of target systems)
- to move away from RTL/2 to C, in which case they can use the files
generated by RTOC as their new sources; in this context RTOC provides
full support for producing C include files from the "prelude" files
commonly used in RTL/2 developments.
The RTOC product comprises three components:
The RTL/2 source analyser
- checks the RTL/2 source modules input and reports any errors; it has
been validated against the definition of the RTL/2 language specified
in the British Standard BS 5904 (1980), and since there are no dialects
or subsets of the RTL/2 language this implies that the analyser can
handle all valid RTL/2 source modules.
The C code generator
- produces understandable C code that is easy to relate back to the RTL/2
original. Several variants of the C language are currently supported,
including ANSI C, "traditional" Kernighan and Ritchie C, and Digital
VAX C, with more being added as users ask for them.
The runtime support library
- provides a set of routines that are incorporated into the translated
system if it is to support those aspects of the runtime behaviour of
an RTL/2 program that are either not included in, or not guaranteed by,
the C language - examples include array bound checking, data type
conversions, and secure non-local jumps.
The RTOC product is currently available on VAX/VMS only; for further details
please contact Roger Barnett on firstname.lastname@example.org.
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