Acmlm's Board - I2 Archive - Super Mario World hacking - The shell of doom! [ASM issue]
| User | Post |
HyperLamer
Posts: 291/8210 |
A modified version of SnesASM by Kenny9000, which unlike the original, doesn't add the 512-byte header and pad to 32K.  (Don't suppose it's an assembler bug?) |
Smallhacker
Posts: 82/2273 |
Hmm... Not related to the issue, but what compiler are you using? The one you're using looks pretty easy to use.
(Right now, I'm using a hex editor and a 65c816 reference file when programming in ASM. ) |
BMF98567
Posts: 102/1261 |
Did you already try tracing the code? Just set a breakpoint on the code's starting address right before the shell hits it, let it snap a few times until the shell hits, then find the crash point from there. Easy. |
HyperLamer
Posts: 281/8210 |
;Super Mario World Custom Block
;Only lets certain types of shells by
;Note: All offsets except sprite hits should be set to -1, else the code may become confused.
;Description format: [Shell colours that can pass]/[Can other sprites pass?]
;Green/No 0
JSR getshelltype
BEQ solid ;Don't let non-shells thru
CMP #1
BNE solid
RTS
;Red/No 10
JSR getshelltype
BEQ solid
CMP #2
BNE solid
RTS
;Blue/No 20
JSR getshelltype
BEQ solid
CMP #3
BNE solid
RTS
;Yellow/No 30
JSR getshelltype
BEQ solid
CMP #4
BNE solid
RTS
;Green/Yes 40
JSR getshelltype
CMP #1
BNE solid
RTS
;Red/Yes 48
JSR getshelltype
CMP #2
BNE solid
RTS
;Blue/Yes 56
JSR getshelltype
CMP #3
BNE solid
RTS
;Yellow/Yes 64
JSR getshelltype
CMP #4
BNE solid
RTS
;Returns type of shell in A (00=Not a shell, 01=Green, 02=Red, 03=Blue, 04=Yellow)
getshelltype:
LDA $14C8,X
CMP #9
BEQ isshell
CMP #$A
BEQ isshell
notshell: LDA #0
RTS
;Sprite is a shell
isshell: LDA $9E,X ;Get sprite type
SBC #$D9
RTS
;Make block solid
solid: LDA #$30
STA $1693
LDY #$01
RTS
So... Who here can tell my why this darn thing crashes when smucked with a shell? |
|
labmaster
