ascherer / mmix Goto Github PK

Indentation of §51 is completely wrong. Compare §50 right above.

Affected sections are §48, §51, §83, §107.

Fix: Replace forced break @/ with soft break @|.

Also floatit(.,..,u,p).

Add %check section to specfile.

• mmix/mmix-config.w

  Line 212 in b32eba1

  \bull ports (default 1), number of processes that can simultaneous

  should be simultaneously.

• mmix/mmix-sim.w

  Line 250 in b32eba1

  on that file. It returns 0 if the file was opened successfully; otherwise

  should add an it.

• The triple operator ?: is formatted inconsistently for Fopen and Fseek in section 4 of mmix-sim.w, i.e., there are several spaces (\ ) missing.

• Also in section 4 of mmix-sim.w, purge two commas in displayed lines.

• The tricky sequence in section 6 of mmix-sim.w should purge two extra spaces.

• Section 59 of mmix-sim.w: list of lists and built into.

• #define rQ 16 in section 12 of mmmix.w repeats the same line form mmix-pipe.h.

CLang 15 started to issue warnings for the mixture of C99 prototype declarations and K&R definitions. GCC 14 likely will follow suite.

Look up C2x (especially C23) for details, or https://news.ycombinator.com/item?id=30396083

At various places in the MMIX sources, Don Knuth asks the interested reader to make significant changes for advanced system features:

• Unicode support using wchar for Char (MMOTYPE§27, MMIXAL§§{7,30})
• octa as single 64-bit integer, e.g., using uint64_t instead of the current struct with two tetras (ILP64 interface) (MMIX-ARITH§1)
• Graphical interface (MMIX-SIM§1)
• …

Time permitting, I'll try to look up the relevant sections in the codes.

master differs from svn co svn://mmix.cs.hm.edu/mmixware/trunk.

mmix-config.w and mmix-pipe.w.

In mmixal.w, replace typedef bool with <stdbool.h>.

Apply SVN@150 to mmix-pipe.w.

http://mmix.cs.hm.edu/index.html

See https://en.cppreference.com/w/c/language/compound_literal for details.

Great to see all the activity in this repo!

Last year I made an emacs mode, mmix-mode. Might be useful in combination with your compiler.

The copy test case produces a floating point exception 8 on MacOS. Analysis shows that there are several external relationships from mmix-io.w to both mmix-sim.w and mmix-pipe.w (mmgetchars, mmputchars, stdin_chr, ...) and back (mmix_fopen, mmix_fwrite, mmix_fputs, etc.). The former is the main module for mmix, the latter for mmmix.

ATTOW, it seems impossible to create a working mmix.so shared object containing mmix-pipe.o (in order to resolve external dependencies from mmix-io.o et al.) and simultaneously link this to mmix-sim.o (in order to create mmix).

Miraculously, the shared object approach seems to work on Linux. However, the code base does not support this.

Major features in local

• C99 types
• Shared library libmmix.so

The word wow occurs exactly once in the whole source distribution of MMIX.