released: micro-Max 4.8w

[modolief]

It looks like this is the stand-alone version (4.8), not the CECP version (4.8w). The stand-alone version has a very simple interface: it accepts a move on a line, and thinks up a move of its own when you enter an empty line. After every input it prints an ascii board for the current position. That is all it does.

This is correct, it's the 4.8 code (plus inclusion of stdio.h and stdlib.h). I did get it to work; took me a while to figure out to press enter twice for the thing to start calculating. Is the 4.8w code downloadable from https://home.hccnet.nl/h.g.muller/dwnldpage.html ? I don't see it listed there.

[modolief]

How is the size of the engine in bytes ?

TL;DR: executable size is 50K.
I'm MacOS. Here is what I have, how I compiled, and file sizes.

Code: Select all

$ uname -a
Darwin marborville 22.2.0 Darwin Kernel Version 22.2.0: Fri Nov 11 02:08:47 PST 2022; root:xnu-8792.61.2~4/RELEASE_X86_64 x86_64

$ gcc --version
Apple clang version 14.0.0 (clang-1400.0.29.202)
Target: x86_64-apple-darwin22.2.0
Thread model: posix
InstalledDir: /Library/Developer/CommandLineTools/usr/bin

$ gcc -Wall umax4_8.c -o umax4_8
(warnings elided, no errors ...)
33 warnings generated.

$ ls -l umax4_8.c
-rw-r--r--@ 1 user  staff  9386 Mar  9 16:53 umax4_8.c

$ ls -l umax4_8
-rwxr-xr-x  1 user  staff  50072 Mar  9 18:09 umax4_8

[hgm]

It is in the 'WinBoard version' column for 4.8.

[Roland Chastain]

9728 bytes for umax4_8.exe compiled for Windows with TCC.

@H.G.Muller

By the way, umax3_2w.c cannot be compiled, because of rdtsc(). It looks to be a function declared but not implemented.

[Roland Chastain]

By the way, umax3_2w.c cannot be compiled, because of rdtsc(). It looks to be a function declared but not implemented.

By comparing with other versions, I see that it can be replaced with GetTickCount(). (And if someone wonders how to compile micro-Max for Linux, there is a Linux version of GetTickCount() in NEG source code.)

[towforce]

When I saw the thread title, I thought you'd built a chess computer that runs on 4.8w of power! I was going to point out that the power consumption of the SOC of today's smartwatches is measured in milliwatts!

(for anyone interested, the new Snapdragon W5 SOC for wearables has taken this already low power consumption and reduced it dramatically by reducing to 4nm - link, typically resulting in 50% longer battery life)

[mclane]

Maybe true. But i do not know any strong or working chess engine for android google wear smartwatches.
There is one app but it does not work.