That brings back some memories from my early days. I worked on a project that had decided to use the newish C language for a 68000-based system. They chose Whitesmith compiler for it, probably because it was the only one available. For some reason, I was selected to attend a class on learning C and became responsible for installing the compiler and assisting the other engineers on using it. The project was ultimately successful but I don't recall what issues we had with it. I do remember contacting Whitesmith a couple of times to resolve some problems. I guess it possible I was talking directly to P.J. Plauger himself, although, at that time, I would have had no idea who he was.

Mind. Blown.

On DEC systems, I programmed using FORTRAN, BLISS, MACRO and (on GiGi and RSTS/E) in BASIC for a long time.. then one day the Bell Labs spinoff I worked for bought a Whitesmith’s C license for the VAXcluster (for probably oodles of money) and I was transferred into a group headed by the guy who wrote UNIX’s malloc implementation a long time before I came along. He hated VMS as much as I hated C. He couldn’t use UNIX because it only ran on dogshit computers. I couldn’t use FORTRAN because someone read a book that said C was cool. We all carried around our K&R pamphlet books and the Whitesmith’s manual (which the Indian workers would mispronounce with three syllables lol). The compiler had all kinds of issues on VMS. Eventually, DEC released VAX-11 C (still have my little 5x7” orange book) and that was enough to make me give up (the truly wonderful) VAX FORTRAN and MACRO/BLISS compilers. My home setup (it was not common for anyone to have home setups then, even programmers) was all assembler, FORTH, Pascal and BASIC but with the shift to C at work, I finally sold a kidney and bought Lattice C and later Aztec C and after moving to the Mac (as I sealed my Amigas into the boxes in the garage where they remain to this day), MPW C, THINK C and CodeWarrior C, MS Visual C, before Yggdrasil Linux…GNU C, then GNU Objective C and now (needle scratch silence) Swift? All started with Whitesmith’s C…

I remember seeing his name in some Windows header files and always wondered who that person was. Cool.

I hope one day the source for Whitesmiths unix clone Idris gets released. IIRC it was the first unix clone, and it would just be nice to have that preserved for history

Replaying a good comment from lobsters! https://lobste.rs/s/ybarpv/whitesmiths_c_compiler_one_earlie...

> You might also enjoy the Advent Of Computing podcast episode about IDRIS, Whitesmiths’ UNIX clone. History of the company and the compiler included, because they’re all related.

https://adventofcomputing.com/

https://youtu.be/UeZpKgtRfx0

Take a look at some of his other repositories. There's one that has basically every CP/M programming tool.

still have code with this indentation style here: https://github.com/hansake/Whitesmiths-C-compiler/blob/main/...

  % grep '/\*' std.h
  /* std.h header file to allow use of Whitesmiths pseudo classes/types. */
  /* the pseudo storage classes
  /* the pseudo types
  /* system parameters
  %

file layout is the interface here lol you can literally walk the pipeline.. lexer parser codegen linker all just sit where they should. the dir was the flow. back then structure = filesystem. we can cd trace src to bin just by lookin at folders

Turbo Pascal: One of the earliest bang it out languages that compiled so tightly and quickly it was like a reduced instruction set with benefits

For the first fifteen years or so, of my career, I used Whitesmiths indenting (as opposed to the K&R that I've been using since). I never knew where it came from. It was just a name, to me.

You can see it, if you look at the code.

What C version does it support (besides K&R C)? The repository seems to include version 2.2; when was it release? Does the compiler any optimizations?

Plauger's books are good reading! I'm sorry to hear he's not in good health.

Not to take anything away from Whitesmiths† C, which has a good reputation, but if you're interested in a C compiler for CP/M, BDS C is fully open source and free software, and also was well regarded. But it's written in assembly, and its compatibility with other C compilers (this was long before ANSI) leaves much to be desired.

We can hope that eventually the Whitesmiths licensing is cleared up, especially since the source is evidently in C. It would be great to have a fully self-sufficient free software development environment that could run on something as simple as an 8080 (6000 transistors, I think NMOS and therefore about 2000 gates) and didn't require you to dip into assembly all the time.

We can probably do better than the 8080 today. Graeme Smecher's Minimax, or Chuck Moore's MuP21 or F18A, seem like they would be a lot more comfortable to program on, and they're not much bigger. The MuP21 was 7000 transistors including ugly video output, with 21-bit words instead of 8-bit, and gsmecher's Minimax is a 32-bit RISC-V in 507 LUT6s, which I don't think anyone has done an ASIC of.

______

† Blacksmiths make hardware, so who makes software?