Denial

This is the code so far... I used one of the multiply routines from Toby Lobster... only to play around with them. CLRSCR equ $E55F WRTF equ $E742 ; faster print MVFACC equ $dba2 FLPINT equ $D1BF STROUT equ $CB1E PRTFIX equ $DDCD ; values form 0 to 65000 X - low; A - high STACK equ $0100 *=$1201 dB ...

Super game, but very very difficult...

Hello,

I like to print 32bit integer numbers in assembly.
I read the example on codebase64.org but I don't get correct results. Can anyone help here?

https://codebase64.org/doku.php?id=base ... _to_string

Thank you in advance
Sven

Okay, sorry for the double post. I have found my mistake. The value 1/Z ist calculated in a range from 4-255, if we reduce it to the maxium x value of 168 the routine works fine. Additionally, a second table with 1/Z for Y should be created. :mrgreen: PROJTAB ;byte $FF,$F0 ; 255, 240 ;byte $E8,$D5,$...

I still have some questions about the 65C02 processor and its instructions.

STZ $20
is the same like
LDA #$00 / STA $20

PHX = STX $FB
PLX = LDX $FB

This ist not clear to me:
BRA XXXX

CLV
BVC XXXX

or can i write
JMP XXXX

***

Hi, I found a great example of the 3D Stars on the following page. https://8bitshack.org/post/starfield/ After transferring to the VIC 20 I ran into some problems. The program collapses at some point. If anyone has the time and desire to take a look at it that would be really great. Many greetings a...

I like this demo much!

Hello, i have converted the 3D Stars routine from the fridge http://www.ffd2.com/fridge/chacking/c=hacking16.txt to VIC BASIC with the MG expansion from Mike. It is so slow. :shock: Does anyone have an idea how to speed this up in BASIC? This is the original code. 10 rem starfield 15 mode16:gron16 2...

Hi, i think the Commodore VIC20: Software Sprite Stack library is the best address for this. We have no in game scrolling, except when the level changes and I can do that in Assembler. ;-) Or see the book "Programing the VIC" from Compute! on page 390 and 400. I found a comparison video fr...

Hi @ all,

I am very interested in implementing Bubble Bobble on the VIC. How can I support?

BR
Sven

I have an TI-84 Plus here on my desk.

https://en.wikipedia.org/wiki/TI-84_Plus_series

The Z80 is alive!

My Assembler load the program with Load"Demo",8 ant not with ,8,1.
Could that be the error?
And how do I change my basic stub to load the program with .8.1?

Good morning, thanks a lot for your help. Bur, it wont run. If i run the program from my assembler compiler the same failure occurs. The data of the sprite is not correct. If i change the register $9005 from $F0 (240) to $FE (254) the start text cannot be seen. And vice versa I see the text but the ...

Hello,

Is there anyone out there who can help me with my question? I can't find the error in the program or in my thought process.

Thank you

Who decides what legitimate applications are?