/vr/ - Retro Games

Anonymous Sun May 17 20:45:37 2015 No.2409458 [View]
File: 132 KB, 500x500, Orange-Juice.jpg [View same] [iqdb] [saucenao] [google]

>>2409438
Okay, by setting a break point at write to $7E:0370, I found the writing instruction to be at $81:89CF. Tracing the program until I hit an RTL at $81:8A36, I return to $90:8620, so the calling instruction is the one before it (most likely). That instruction is..

22 AE 89 81 JSL $81:89AE

So (~ $81:89AE to $8189CF) is where the sprite drawing program is (for at least Samus). Now time to disassemble...

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