Instructions for getting ModLoader v5 to work with MCP 2.9a

As the included modloader support in MCP 2.9a is for ModLoader v4 which is outdated (and doesn't work for some anyway), you can use these instructions to make modloader mods. It's the old, time tested way of doing it. Don't use enable/test_modloader with this, just regular test_game.

Open your conf/minecraft.rgs, add the following lines at the start:
.class ModLoader protected
.method;private ModLoader/* *
.field;private ModLoader/* *

.class BaseMod protected
.method;private BaseMod/* *
.field;private BaseMod/* *

Add the modloader classes (and spawnlist if you wish) to your minecraft.jar. Put it you know where (read README-MCP).

Decompile. Ignore the HUNK failed message about RenderBlocks.

Open ChunkProviderLoadOrGenerate, navigate to saveChunks, you'll see:
<             chunkLoader.saveChunk(worldObj, chunk);

Make it so it looks like

>            try
>            {
>                chunkLoader.saveChunk(worldObj, chunk);
>            } catch (Exception e) {}

Basically wrap the statement in a try block and ignore the error. No harm in this