romhack

function CompressionHook()

	
	
	src = memory.readword(0x001D)
	size = memory.getregister("a")
	emu.print(string.format("src:0x%x; plain size:0x%x\n", src+0x10,size*0x10))

end

romhack

local xreg = ''
function srcUpdate()
	xreg = xreg .. string.format("\n0x%x", emu.getregister("R0"))

end
function sizeUpdate()
	xreg = xreg .. string.format(" 0x%x", emu.getregister("R0"))

end

romhack

1 11111 YY YYYYYYYY OOOOOOOO OOOOOOOO
| |     |           |
| |     |           16 bit lz offset
| |     lz decompress length
| signifies LZ copy
compression flag

1 YYYYY XX  XXXXXXXX AAAAAAAA...
| |     |            |
| |     |            chunk to repeat

romhack

unsigned int __fastcall decompressGfx(int a1)
{
  int v1; // r4@1
  int v2; // r0@1
  int v3; // r5@1
  int v4; // r6@1
  int v5; // r2@1
  unsigned int result; // r0@1
  int v7; // r9@3
  int v8; // r0@3

romhack

{-# LANGUAGE ScopedTypeVariables #-}
{-# OPTIONS -O #-}

-- Example of an drawing graphics onto a canvas.
import Graphics.UI.Gtk

import Data.Array.MArray
import Data.Word
import Data.IORef
import Control.Monad ( when )