update tstore_bug-2 #141
update tstore_bug-2 #141
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| { | ||
| bb.Op(ops.ISZERO) | ||
| bb.Push(24576) // MAX_CODE_SIZE 0x6000 | ||
| bb.Op(ops.MUL) |
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Interesting. This looks like a hack to avoid jumping, is that so? Instead of branching on 1/0, you multiply it by 0x6000 and add 10?
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Yeah. Still figuring out JumpIf in goevmlab but this effectively accomplishes what I intended to do in the init code :)
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Nah jumpif isn't any good for this. Backward jumps are easy, forward jumps are a bit more tedious in goevmlab. It's not a proper "compiler", just some tooling to construct evm bytecode very minimalistically.
What one can do is basically note the size, add the jump to 0, yada yada, then later on, replace the 0-byte with the actual destinatoin.
I made a different/simpler fix though, returning code of size 0x600a - tstore(1)
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