--- Rich Smrcina <[EMAIL PROTECTED]> wrote: > VMARC format works. What is minimal at this point? >
I guess thats a "moot point". It actually now has almost all of the ANSI standard routines in place and the compiler will (almost) re-compile itself on VM. A couple of routines fail, I think because they run out of space below the 16Meg line and I am investigating why... However to my mind the ANSI "C" library is some what limited. So no SOCKETS, SHELL, DUP etc... The implmenetation also has some areas of weakness. 1. Floating point support. ========================== It still uses "tradional" floting point not IEEE.. Most of math.h is implemented but some of it is of limited accuracy and (almost) totally lacking in error checking. s/f/printf() will output doubles, and strtod() works (but again no error checking). scanf() has no support for doubles(). I guess that if it does not use floating point and is single threaded it has a good chance been made to work with minimal changes. I have actually built the BREXX interpreter from http://bnv.home.cern.ch/bnv/software/ on VM/370r6 and much to my suprise it seems to work very well. I did need to implement some extra routines (setjmp/longjmp) for this to work, but of course they are now there for every one to use.... 2. File I/O. ============ The run time uses OS file I/O, which I am not sure I like. Despite breaking the rules by issuing FILEDEF commands it seems to work fine. Again as its ANSI things like fcntl is not provided... 3. External routine names ========================== I have been generating traditional TEXT decks and loading with "LOAD" and "INCLUDE" so limited to 8-chars on external routine names. Probably other stuff breaks as well. Its not had a real thrashing. On the plus side:- 1. All the source code is available, even the (few) bits I wrote so you can always have a good giggle at my "C" and Assembler :-) (or if feeling generous improve them) 2. The run time is pure public domain (compiler is of course GPL) so you can do what you want with any MODULES you produce... 3. Its totally free. Dave. > Dave Wade wrote: > > Folks, > > > > Thanks to the kind loan of access to a zVM > system > > from Dave Jones @ V-Soft Software I now have a > GCC323 > > that runs on VM, and generates "traditional" 370 > > assembler. There is also a minimal run time > library so > > that CMS "modules" can be produced. Due to some of > the > > MVS macros used it still uses the code runs RMODE > > 24/AMODE 31, but I am looking to fix this in the > > medium term. > > > > Is this likely to be of interest to any one, as > I > > guess that most of you have IBMs C Compiler. If it > is > > what would be the best way to package it. I assume > a > > VMARC file would fine with most folks. > > > > Any other thoughts on this? > > > > Dave. > > > > __________________________________________________ > > Do You Yahoo!? > > Tired of spam? Yahoo! Mail has the best spam > protection around > > http://mail.yahoo.com > > > > -- > Rich Smrcina > VM Assist, Inc. > Main: (262)392-2026 > Cell: (414)491-6001 > Ans Service: (360)715-2467 > rich.smrcina at vmassist.com > > Catch the WAVV! http://www.wavv.org > WAVV 2007 - Green Bay, WI - May 18-22, 2007 > __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
