evmlab compiler

Compiler

The 'compiler' is a tool to build evm binaries, using a pythonic way to construct the programs using assembly.

Here's an example that tests ecdsaRecover:

p = compiler.Program()
p.mstore(0 ,0x38d18acb67d25c8bb9942764b62f18e17054f66a817bd4295423adf9ed98873e)
v = 0x000000000000000000000000000000000000000000000000000000000000001b
p.mstore(32   , v)
p.mstore(64   ,0x723841761d213b60ac1cbf063207cbeba6c2725bcaf7c189e63f13d93fc1dc07)
p.mstore(96   ,0x789d1dd423d25f0772d2748d60f7e4b81bb14d086eba8e8e8efb6dcff8a4ae02)
p.call(0xfff,1,0,0,0x80,0x80,0x20)
p.rreturn(140,20)
code = p.bytecode()

Here's an example of stuffing JUMPDEST into a program:

p = compiler.Program()
p.jump(0x3)
p.jumpdest()
p.rreturn()
for i in range(0,20000):
    p.op(JUMPDEST)

return p.bytecode()