Mallard Games

Just wanted to let you know i still can't update my entry.

I'm developing a waterfowl hunting game for the 2600 called Mallard Season. Waterfowl Hunting is considered an outdoor sporting activity.

@Albert Thanks, any time frame for the fix? I'm going to rest soon and wanted get my game up at least by tonight.

Found A Small Issue: Seems like the edit window is too small.

I am using this bit of code to decide if the velocity is going to be positive or negative when a new game is started. GetRandomByte lda Random asl eor Random asl eor Random asl asl eor Random asl rol Random ; performs a series of shifts and bit operations rts jsr GetRandomByte ; generate a random number lda #%10000000 ; 1 in most significant bit mean greater then 127 bit Random ; was it less then 127? bne RandomVX ; if it was then branch lda #$ff ; set the starting duck's x velocity to -1 jmp RandomVXDone ; and jump cause we're done RandomVX lda #$01 ; set the starting duck's x velocity to 1 RandomVXDone sta DuckVX ; store duck's initial x velocity jsr GetRandomByte ; generate a random number lda #%10000000 ; 1 in most significant bit mean greater then 127 bit Random ; was it less then 127? bne RandomVY ; if it was then branch lda #$ff ; set the starting duck's x velocity to -1 jmp RandomVYDone ; and jump cause we're done RandomVY lda #$01 ; set the starting duck's x velocity to 1 RandomVYDone sta DuckVY ; store duck's initial y velocity However no matter what the velocity always stays the same. Bin: https://www.dropbox.com/s/ikjnebg1moyn0k4/duckgame.bin?dl=1

In the Atariage database and the internet as a whole, I see people mentioning a severe bug that requires a password to patch. Quote: Sources https://gamefaqs.gamespot.com/cd32/955787-brutal-football/faqs/57269 https://atariage.com/software_hints.php?SoftwareHintID=181 Yet I cannot find any mention of what exactly the bug is anywhere.

I'd watch. I streamed myself coding my Mallard Season game, but as there was little interest I discontinued it.

Looking for a few manuals from different companies. I will compare the different styles each company used in their manual. Manual doesn't have to be in pristine condition, but does have at least be in 1 piece and readable. I plan to use the knowledge when I start writing up the manual For my homebrew.

Portablize this modified bit of code: ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ;; Subroutine to generate a Linear-Feedback Shift Register random number ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ;; Generate a LFSR random number ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; GetRandomByte lda Random asl eor Random asl eor Random asl asl eor Random asl rol Random ; performs a series of shifts and bit operations rts So it works with any game out of the box, without requiring an extra RAM variable.

What do you mean by "zero"? eor #$00

Hi, I'm getting the following error: here is the code i'm using: GetRandomByte asl eor asl eor asl asl eor asl rol ; performs a series of shifts and bit operations rts the error is specifically with eor which I am trying to eor the value of the accumulator with the value itself. Is there any way to do it or must i use a RAM location?

I know that the 2600's RAM and stack are in an unknown state when first turned on and that's why we clear the RAM and setup the start immediately. I was wondering if there are any registers that still are in an unknown state after clearing the RAM and setup the stack. I ask cause I would like to use that to seed my random number generator function.

I am having a small issue with my code. I am trying to get the duck to stop when it reaches the top after hitting the flyaway state. However no matter what I try the code gets ignored. Source Code Relevant section Any of you experts have any ideas on what's going on?

That sounds awesome, question though how do i set a single bit? For example lets say I want to set bit 2 of Option1, how would i do that in assembly language?

Not sure what your referring to when you say "Tracing" and "Time Machine", i was referring to this. I'm interested in knowing if it's a waste of space, ram & time or not and how many homebrewers actually actively use it in their games.

I was referring to being able to see hidden forums you wouldn't have access to.

Hi, New to the forum, but not 6502 assembly. I was wondering if any of the homebrew gurus when developing the bigger games(16k+) used game states for tracking what point the game is in and if it was helpful or just a waste of space.

That's weird cause I remember being able to access the forums through Tapatalk not long ago and never encountering that issue.

Um, does the Tapatalk plugin have to be updated as well cause I'm getting this: Screenshot of Network Error(get config)