Search found 189 matches

by olofsen
Wed Sep 19, 2018 6:56 pm
Forum: Software
Topic: "wall" game for the Lamba 8300 / Power 3000
Replies: 28
Views: 52077

Re: "wall" game for the Lamba 8300 / Power 3000

Well actually Lambda related z88dk files were patched to match the "old" Lambda ROM. It will be quite hard to make one binary that runs with the old and new ROM (as well as others). Currently the patched z88dk tree is still in a testing phase and "+lambda" now only compiles for the old ROM...
by olofsen
Mon Sep 03, 2018 10:27 pm
Forum: Software
Topic: DSTAR for the LAMBDA 8300
Replies: 4
Views: 18054

Re: DSTAR for the LAMBDA 8300

The attached version hopefully runs with the old ROM:
by olofsen
Mon Sep 03, 2018 10:25 pm
Forum: Software
Topic: Cross Chase on Lambda 8300
Replies: 3
Views: 15479

Re: Cross Chase on Lambda 8300

The attached one hopefully runs with the old ROM:
by olofsen
Sat Aug 25, 2018 11:24 pm
Forum: Software
Topic: "wall" game for the Lamba 8300 / Power 3000
Replies: 28
Views: 52077

Re: "wall" game for the Lamba 8300 / Power 3000

So here is a little test program for the math functions... /* zcc +lambda -O3 -create-app math.c -lmlambda */ #include <stdio.h> #include <math.h> unsigned short frames @0x4034; int main() { int dframes; float M_PI2, M_PI4, M_PI6; char buf[3]; dframes = frames; M_PI2 = M_PI/2; M_PI4 = M_PI/4; M_PI6 ...
by olofsen
Wed Aug 22, 2018 11:31 pm
Forum: Software
Topic: "wall" game for the Lamba 8300 / Power 3000
Replies: 28
Views: 52077

Re: "wall" game for the Lamba 8300 / Power 3000

These extra characters look spectacular :)
by olofsen
Wed Aug 22, 2018 10:31 pm
Forum: Software
Topic: "wall" game for the Lamba 8300 / Power 3000
Replies: 28
Views: 52077

Re: "wall" game for the Lamba 8300 / Power 3000

Yes indeed. Perhaps the Lambda version is slower because it always uses colour. There is a speed parameter for a delay in the C code, which I changed for the updated .p file above, but perhaps the delay could go negative, it is now constant. A universal program would have to poke the JP and CALL add...
by olofsen
Tue Aug 21, 2018 9:49 pm
Forum: Software
Topic: "wall" game for the Lamba 8300 / Power 3000
Replies: 28
Views: 52077

Re: "wall" game for the Lamba 8300 / Power 3000

The game built for the newer ROM seems to be slow too (in the emulator), and slower than the one in the first post of this topic... But the zx81 version is ok. Fascinating :)
by olofsen
Tue Aug 21, 2018 6:52 pm
Forum: Software
Topic: "wall" game for the Lamba 8300 / Power 3000
Replies: 28
Views: 52077

Re: "wall" game for the Lamba 8300 / Power 3000

You're correct, most addresses are different. The display routines are also a little bit different. Fortunately, the system variables appear to be the same. Here is a hopefully working version of the "wall" game:
by olofsen
Mon Aug 20, 2018 10:49 pm
Forum: Software
Topic: "wall" game for the Lamba 8300 / Power 3000
Replies: 28
Views: 52077

Re: "wall" game for the Lamba 8300 / Power 3000

Hi Martin, does the attached program display something on your Lambda?

It was created by z88dk, by changing some things for the earlier ROM.

Stefano did amazing work when adding Lambda support!
by olofsen
Thu Jun 14, 2018 9:39 pm
Forum: ZX BASIC
Topic: Let's calculate! - renewed arithmetic routines
Replies: 33
Views: 24173

Re: Let's calculate! - renewed arithmetic routines

Edit: (*): the ROM subroutine "03A8 NAME" can be used scan/evaluate such a complex string .... Yes, I left it in place at the beginning of LOAD and SAVE. However, the resulting string can only have A-Z. That is because the ZX81 character to ASCII conversion just adds $1B, otherwise it takes too muc...