Sinclair ZX80 / ZX81 / Z88 Forums

I totally agree.

Well, the video shows a nice shoot-em-up game, nice work really.

4inarow 2007-Oct-25
by Joseph Larson (c) 2008
based on a BASIC game by James L. Murphy
as found in 'More BASIC Computer Games' by David H. Ahl (c) 1979

Noting really special, but I built a working version for the zx81, here it is.

I think I understood, it makes it closer to mastermind. I remember little on the way we played it when we were kids, I think sometimes we didn't mention which type of boat was sunk. I'd like to evolve this game, e.g. Making a graphics version but once compiled it has serious stability issues which m...

Battleship.
This game was a 2008 Cymon's Games game, I used z88dk to port it to ZX81
Source code in C: https://github.com/z88dk/z88dk-ext/blob ... ttleship.c

Enjoy,
Stefano

Saomeone says that good programmers were those ones writing only readable and maintainable code.
They are SORT OF right, but sometimes a trick really makes the difference.

The numeric conversion trick is very cool, BTW !

Parents, they knew us better than ourselves.

This is a trick me and my cousin discovered back in those days, I had to fiddle with the ZX Spectrum emulator. There are several ways to get to the same result, this one looks reasonably readable. The trick relies on two very powerful features we have on the ZX Spectrum, DEF FN() and VAL. DEF FN is,...

This is an equivalent function library generated with z88dk.

https://www.sinclairzxworld.com/viewtop ... 79e8ab2561

More memory consuming but probably faster and less dependent from the ROM version because it is accessing to the video memory directly.

In my information a this is the smallest disassembler ever:
https://github.com/z88dk/z88dk/blob/mas ... disz80.asm

Scroll a little lower to get to the core routine, the extra stuff is something I've put to have a C function.