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Implement CALLVALUE, CALLDATALOAD, CALLDATASIZE, CALLDATACOPY in interpreter (#819)

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* Implement `CALLVALUE, CALLDATALOAD, CALLDATASIZE, CALLDATACOPY` in interpreter

* PR feedback
This commit is contained in:
wborgeaud 2022-11-19 18:58:55 +01:00 committed by GitHub
parent 2501386004
commit c31b0147f4
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 49 additions and 4 deletions
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53
evm/src/cpu/kernel/interpreter.rs
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@ -266,10 +266,10 @@ impl<'a> Interpreter<'a> {
0x31 => todo!(), // "BALANCE",
0x32 => todo!(), // "ORIGIN",
0x33 => todo!(), // "CALLER",
0x34 => todo!(), // "CALLVALUE",
0x35 => todo!(), // "CALLDATALOAD",
0x36 => todo!(), // "CALLDATASIZE",
0x37 => todo!(), // "CALLDATACOPY",
0x34 => self.run_callvalue(), // "CALLVALUE",
0x35 => self.run_calldataload(), // "CALLDATALOAD",
0x36 => self.run_calldatasize(), // "CALLDATASIZE",
0x37 => self.run_calldatacopy(), // "CALLDATACOPY",
0x38 => todo!(), // "CODESIZE",
0x39 => todo!(), // "CODECOPY",
0x3a => todo!(), // "GASPRICE",
@ -537,6 +537,51 @@ impl<'a> Interpreter<'a> {
self.push(U256::from_big_endian(hash.as_bytes()));
}
fn run_callvalue(&mut self) {
self.push(
self.memory.context_memory[self.context].segments[Segment::ContextMetadata as usize]
.get(ContextMetadata::CallValue as usize),
)
}
fn run_calldataload(&mut self) {
let offset = self.pop().as_usize();
let value = U256::from_big_endian(
&(0..32)
.map(|i| {
self.memory
.mload_general(self.context, Segment::Calldata, offset + i)
.byte(0)
})
.collect::<Vec<_>>(),
);
self.push(value);
}
fn run_calldatasize(&mut self) {
self.push(
self.memory.context_memory[self.context].segments[Segment::ContextMetadata as usize]
.get(ContextMetadata::CalldataSize as usize),
)
}
fn run_calldatacopy(&mut self) {
let dest_offset = self.pop().as_usize();
let offset = self.pop().as_usize();
let size = self.pop().as_usize();
for i in 0..size {
let calldata_byte =
self.memory
.mload_general(self.context, Segment::Calldata, offset + i);
self.memory.mstore_general(
self.context,
Segment::MainMemory,
dest_offset + i,
calldata_byte,
);
}
}
fn run_prover_input(&mut self) -> anyhow::Result<()> {
let prover_input_fn = self
.prover_inputs_map