Atasm and the Equates

[Atasm and the Equates]

I was wondering if just setup the equates actually use some memory at all in the compiled assembler code in Atasm.

 

Like this:

 

; set som equates

 

1600=variable1

1601=varable2

 

So here is 2 equates set at adress 1600 and 1601, So when the code is assembled does this use 1 byte per Equate or is it just the source code that grow when setting equates in Atasm ?  Is it a internal thing that tells Atasm what adresses to use only ? Putting data in the equates uses 1 byte i know. But i mean only the setup itself.

 

 

 

 

 

 

 

[Flagging Flamingos]

Thank You, I've been waiting for this one. Looks nice and original gameplay. 👍

[Zero Page indexed indirect adressing]

On 11/24/2020 at 9:40 AM, Wrathchild said:

Not entirely, the JMP instruction can take an indirect address from anywhere in memory, e.g.

The same for JSR ?.. I believe so.

 

I was trying something like this. 

 

1600 = VAR ; EQUATE for changeable varible

LDX 35000

STX VAR

; later in the program

JMP VAR ; So this is a try to reach the adress stored in VAR but my guess is it doesnt work this vay

 

Gonna have to do something like this I think.

 

LDX #184 ; low byte

STX $43

LDX #136 ; high byte

STX $44

 

So then, Possible to JMP or JSR $43 to reach adress 35000 in this way ? Point for this is having a changeable variable to control program flow , when its needed in certain routines etc....

 

 

 

 

[Atari's Galaxian]

I think this game look very nice, but are lacking in the sound fx. I had this game back in the day and while the the starfield and galaxians look pretty good,the sound fx doesn't really fit the game very well, dragging down the game i think. I think the Galaxian clone "galactic chase" has better sounds. Would be nice to see a sound hack of the Galaxian game to improve sound fx as this game is often overlooked it seems..

 

 

 

 

[Zero Page indexed indirect adressing]

15 minutes ago, Alfred said:

Zero page only

OK. Im looking in the book "Mapping the Atari" and the free user ram in the Zero page seems to be small, Only a few bytes avaible there ? Whats the most common user adresses to use in the Zero Page ?

[Zero Page indexed indirect adressing]

Is the Zero Page type of indexed indirect adressing uniqe to the Zero page ?

 

Put a value into adress $43 for the low byte and then a value into adress $44 for the high byte then use with a LDA ($43),Y or STA ($43),Y  to acces the resulting adress from locations $43 and $44.

 

Is this uniqe for the zero page or is it possible to use similar adressing mode in the other memory pages ? 

 

 

 

[The Lady, ABBUC Software Contest 2020 game]

Very nice. I enjoy playing it. I was thinking on a old Favorite of mine, the Gunfighter game for Videopac/Odyssey 2 console. Just imaging have that old game with these very nice sprites and graphics style. Could perhaps be like a evolution, like the lady gunfighter 2. hehe...😎

[Last Squadron ABBUC software contest 2020]

Some real Arcade quality right there. 🙂  Great 👍 

[WUDSN IDE: The free integrated Atari 8-bit development plugin for Eclipse]

I try for the first time using this and when i try compile i get this message always "operation compile is not possible because the file in the editor is not located in the worksapce" yes it says "worksapce" but should be "workspace" ? . I try loading the *.asm file from the workspace directory but i always get the same message. im trying to use atasm for now. Eclipse version : 

Version: 2020-09 (4.17.0)
Build id: 20200910-1200

 

For win x64

 

-------- Never Mind ----- i got it working

 

 

[Why did Atari make the 400 have a membrane keyboard?]

My very first home computer was the Atari 400 back in early 80's. The Membrane keyboard was not bad in my opinion, I liked the look of it and back then it look kinda futuristic to me.  I did learn program BASIC on that Atari 400 and did write several games on the 400 back then. Sadly all my old programs from early 80's was lost due to data loss on old cassette tapes..

[8bit Abbayes des Morts Possible?]

This game even got a sega megadrive/Genesis port,  A8 version would be cool to have also..😉

[HSC 17 Round 11: 2020 ReVision]

Thank you very mutch for including my game Rocket Rescue 2020 in this competition , First time i seen this thread today. Some good scores in there. The Jon Williams games are Amazing. My favourite is Major Blink 🙂👍

[Game about Corona appropriate ?]

Anyway I changed the theme of my simple game to some sort of Tax Man theme. Hey i'ts only a game right ?  

[Tax Run Game Release.]

11 minutes ago, ascrnet said:

great job and tell us how you developed it?

I remembered a classic of the analog "Bricklayer's Nightmare"

 

regards

Thank you. Well i wanted to create something simple to practice programming assembler code,  Score routines etc. 

[Tax Run Game Release.]

Game Rules : The litte taxmen are after you to kill you. Try avoid them and pick up moneybag to score points, When the moneybag is picked up the little taxmen have to work on your new tax and thus move a bit slower and blink for a while. Then you can escape them more easily for a while. When the border color flashes the diffculty increase and the taxmen will move a bit faster. They wil follow you most of the time , Try to lure them into the corners to go around them.

 

 

Tax Run 1.0.xex

 

 

 

[SI2OSD strange occurence]

Sounds about right, i'l look at it..

[SI2OSD strange occurence]

My game is almost finished but when i try it on SIO2SD the name of the game xex file actually is show in the upper part of the actual gameplay screen, As if the SIO2SD interferes with the actual screen adress that is used in the game. When i try the game in emulator or Mist FGPA everthing is normal..

 

A note about the game. I changed the theme, So it's not about virus etc..

[Game about Corona appropriate ?]

Mabye "Virus run" would be ok then afterall ? I Dont want to use the Corona word..

[Game about Corona appropriate ?]

I Always like vampire type games so i think "Vampire Run" would be a fun title, change player sprites to dracula with is controlled by the player and then some hunters after him.. Its proably the way the game gonna be released........

[Game about Corona appropriate ?]

In the game you can't kill the virus but you can try to avoid it to survive longest possible to get the highest score but as the difficulty increase you sure to end up "Game over". But i can change the theme to something else, Any suggestions anyone ? some sort of alien ? i don't want to have insects. Gameplay is simple like Some sort of creature trying to catch you..

[Game about Corona appropriate ?]

The game is quite simple, And more like a karikature on the real thing, But it seems i have to change the Game and the name as well, The Corona situation is no good for anyone and we still don't know how the situation is gonna be in the future..

 

I wanted to create something simple in 100% assembly to learn about score routines and setting hiscore using decimal mode in assembler , And achieved that. I have to change the theme and name of the game before any release..

[Game about Corona appropriate ?]

9 minutes ago, Mclaneinc said:

A different name would suffice..

Well maybe the name could be changed to something else.. i'm open to suggestions on the name.. thanks.

[Game about Corona appropriate ?]

A image from the game , Just a simple game . 100% assembler.

 

 

 

 

 

[Game about Corona appropriate ?]

The name was planned to be "Corona Run".

[Game about Corona appropriate ?]

Do you think a game about Corona Virus would be Appropriate at this time ? , I mean many people are still suffering the consecuences of the corona virus and maybe it it's not the right time for a game about the Corona Virus ?. I may or may not have something soon ready to release...