Official Hex/ASM/Etc. Help Thread - ASM & Related Topics

That code isn't all correct. For starters, you want to use a sprite table which sets the direction in which the platform is moving. This is the index to the acceleration and max speed table. You then use a timer, for how long the platform is not accellerating. Once the timer runs out, you change the platform's direction and set the timer again.

You can take a look at the Checkerplatform Disassembly on how it handles the speed.

Is there a way to make sprites positioned above each other much like in YUMP 2 (i.e. a stationary magic sprite on top of a shell)? I tried to look in the RAM map, to no avail. Is that a case of modifying the sprite's disassembly?

Originally posted by Katerpie

Is there a way to make sprites positioned above each other much like in YUMP 2 (i.e. a stationary magic sprite on top of a shell)? I tried to look in the RAM map, to no avail. Is that a case of modifying the sprite's disassembly?

IDK if it's on SMWC but dtothefourth made the asm for it

That's what I needed. Thanks, man!

I need some help on how to make the scroll only only to right, meaning Mario CAN'T go the the left. Here's some code:
Current code: Show/Hide

!ParallaxLayer = 2 ; Which layer is affected by the HDMA

!DisableHdmaAtGoal = 0 ; HDMA and IRQ don't mix very well

init:
LDA.b #$0D+((!ParallaxLayer-1)<<1)
JSL ParallaxToolkit_init

main:
LDY #$00
REP #$20
LDA $80
CMP #$0070
SEP #$20
BPL +
INY
+
STY $1411|!addr

if !DisableHdmaAtGoal
LDA $1493|!addr
BEQ +
LDA #$20
TRB $0D9F|!addr
RTL

+
endif

REP #$20
LDA $14
AND #$00FF
ASL
STA $08
LDA $1A
STA $0A
LDA $1C+((!ParallaxLayer-1)<<2)
STA $0C

if !sa1
SEP #$20
%invoke_sa1(sa1)
RTL

sa1:
endif
REP #$20
LDA.w #ScrollVal
LDX.b #ScrollVal>>16
JSL ParallaxToolkit_main
RTL

; The values are specified in the readme.
ScrollVal:
db $00 : dw $0000,$00EC
db $00 : dw $0020,$0117
db $00 : dw $0048,$011F
db $00 : dw $0060,$0130
db $00 : dw $0080,$013E
db $00 : dw $00B0,$01C0
db $00 : dw $0100,$FFFF

Not sure if this works. If I test it, the scrolling works very weird.

I'm looking for some code that makes layer 3 water move like this. Any help?

Is there any documentation for what goes on in the $819xxx range?
I'm having some kind of error related to $819164 and $819382. they both seem to have something to do with layer 2 scrolling. I cant find any information on when this code is run and why.

#JusticeForYellowSwitchPalace

Originally posted by jesus

Is there any documentation for what goes on in the $819xxx range?
I'm having some kind of error related to $819164 and $819382. they both seem to have something to do with layer 2 scrolling. I cant find any information on when this code is run and why.

$819614 is most likely $019614 and the rom map says it's unused data.
$819382 doesn't make sense given that it's in the middle of an instruction.

Originally posted by Atari2.0

Originally posted by jesus

Is there any documentation for what goes on in the $819xxx range?
I'm having some kind of error related to $819164 and $819382. they both seem to have something to do with layer 2 scrolling. I cant find any information on when this code is run and why.

$819614 is most likely $019614 and the rom map says it's unused data.
$819382 doesn't make sense given that it's in the middle of an instruction.

8193A2, excuse me for the typo!

#JusticeForYellowSwitchPalace

Originally posted by jesus

Originally posted by Atari2.0

Originally posted by jesus

Is there any documentation for what goes on in the $819xxx range?
I'm having some kind of error related to $819164 and $819382. they both seem to have something to do with layer 2 scrolling. I cant find any information on when this code is run and why.

$819614 is most likely $019614 and the rom map says it's unused data.
$819382 doesn't make sense given that it's in the middle of an instruction.

8193A2, excuse me for the typo!

It's really hard to help you without any other information, It'd really help if you gave like what's giving you those addresses, also it would help if you could send all the hex values that you can get from $0195FC (or $8195FC) to $01961C ($81961C)

Originally posted by Atari2.0

Originally posted by jesus

Originally posted by Atari2.0

Originally posted by jesus

Is there any documentation for what goes on in the $819xxx range?
I'm having some kind of error related to $819164 and $819382. they both seem to have something to do with layer 2 scrolling. I cant find any information on when this code is run and why.

$819614 is most likely $019614 and the rom map says it's unused data.
$819382 doesn't make sense given that it's in the middle of an instruction.

8193A2, excuse me for the typo!

It's really hard to help you without any other information, It'd really help if you gave like what's giving you those addresses, also it would help if you could send all the hex values that you can get from $0195FC (or $8195FC) to $01961C ($81961C)

sure thing. i was just typing out a tracelog

e: i solved it, thanks for the help! the 80000+ thing was the piece of info i needed.

one day i will be able to explain how ridiculous the thing is.

#JusticeForYellowSwitchPalace

Does anyone have some idea on how to patch SMB3 Koopa Patch features on the Koopas + Shells + Disco Shell if possible? I would appreciate the help, I'm surprised no one bothered with it!

Originally posted by Hamtaro126

Does anyone have some idea on how to patch SMB3 Koopa Patch features on the Koopas + Shells + Disco Shell if possible? I would appreciate the help, I'm surprised no one bothered with it!

Use this variation: Download (I put the smb3 patch defines in the asm file).

Would anyone know how to make this Following Grnder sprite not disappear behind bushes and ledges?

Originally posted by Golden Yoshi

Would anyone know how to make this Following Grnder sprite not disappear behind bushes and ledges?

Find this line:

Code

CODE_01DBC3:                      LDA PropertyInfo,X 		;\

And on a line underneath, add "ORA $64" (no quotation marks).
Keep in mind though that it will also make the grinder appear in front of the ground, as this is the same layer as bushes, ledges etc.

Thanks, that worked.

One more question, I'm trying to insert a couple sprites through Pixi, the Carryable Sprite Killer and X/Y Position Locked Sprite, but when I do so I get an error in Pixi "error (E5088): Define 'addr' was not found." Not sure what I'm doing wrong here. Does it have something to do with the routines folder that came with Pixi? I've extracted that folder to my main ROM hacking folder and also tried placing it directly in my sprites folder but that didn't seem to help.

Originally posted by Golden Yoshi

One more question, I'm trying to insert a couple sprites through Pixi, the Carryable Sprite Killer and X/Y Position Locked Sprite, but when I do so I get an error in Pixi "error (E5088): Define 'addr' was not found." Not sure what I'm doing wrong here. Does it have something to do with the routines folder that came with Pixi? I've extracted that folder to my main ROM hacking folder and also tried placing it directly in my sprites folder but that didn't seem to help.

That define was added in a more recent version of the tool (1.2.10 I think), so you just need to use the most recent version.

Originally posted by KevinM

Originally posted by Golden Yoshi

One more question, I'm trying to insert a couple sprites through Pixi, the Carryable Sprite Killer and X/Y Position Locked Sprite, but when I do so I get an error in Pixi "error (E5088): Define 'addr' was not found." Not sure what I'm doing wrong here. Does it have something to do with the routines folder that came with Pixi? I've extracted that folder to my main ROM hacking folder and also tried placing it directly in my sprites folder but that didn't seem to help.

That define was added in a more recent version of the tool (1.2.10 I think), so you just need to use the most recent version.

Ah yes that was it, thank you.

Hey there! Is there any ram addresses or anything that will indicate that a song has finished or about to loop for AddmusicK? Such as like the current time of the song, or something like that? I wanted to create asm that would change the music as soon as the song ends/loops. I hope that could explain it okay!