updates available

[pdp-10]

updates available

[gtoal]

By the way, Imp77 did fairly well in the old 1982 benchmark using Ackermann's function ( https://history.dcs.ed.ac.uk/archive/docs/Imp_Benchmarks/acklt.pdf ). But I see you now have a backend for GCC for the Dec-10. It would be interesting to see what gcc generates for the same function (with optimisations enabled) compared to the contemporary C compiler from 1982.
(I don't believe that older version of the Imp77 compiler has the ability to display the generated code at compile time, however the 'recode.exe' utility which you have should display the compiled code next to the Imp source code as a post-compile step.)

3.1.4 DEC-10
Language Compiler            Instr./call       Size (bytes)   Source
Assembler PAL-DEC10          3.010             54             J P Reiser
Assembler PAL-DEC10          5                 85             J Palme
Bliss CMU-DEC10              15                103+           W A Wulf
Imp77 Edinburgh(DEC10)       16                130            I A Young
PASCAL Hamburg-DEC10         20                166            D Burnett-Hall
C MIT                        23.5              157            A Synder
ALGOL 68 DEC-10-C            27                140            I C Wand
Ada Intermetrics,v1          44                936            Ben Brosgol
SIMULA DEC-Stockholm         (158)             ?              J Palme

[larsbrinkhoff]

Thank you very much for this information! Sorry for not replying earlier; I have been busy elsewhere.

[larsbrinkhoff]

I see a typo. "Synder" whould be "Snyder".

[larsbrinkhoff]

I didn't hear about the Ada compiler before. I have sent an inquiry to Ben Brosgol.

[larsbrinkhoff]

I added your files to the repository.