mirror of https://github.com/status-im/EIPs.git
93 lines
3.1 KiB
Markdown
93 lines
3.1 KiB
Markdown
POC-7 https://ethereum.etherpad.mozilla.org/14?
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Latest changes:
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---------------------------------------------------
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Stateless contracts:
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Additional opcode: 0xf4: CALLSTATELESS
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Calls self, but grabbing the code from the TO argument instead of from one's own address
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DONE PY,C++, go/Java
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--------------------------------------------------------
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0x3b EXTCODESIZE
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0x3c EXTCODECOPY
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like CODECOPY, CODESIZE but takes an additional parameter at beginning (top of stack) containing address from which to copy.
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DONE C++, Go, Java,JS
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--------------------------------------------------------
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* zero-size memory reads/writes do not lead to a size increase for fee purposes
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DONE PY,C++, go, Java,JS
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--------------------------------------------------------
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New opcodes:
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0x80...8f: DUP1 ... DUP16
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0x90...9f: SWAP1...SWAP16 (for LLVM cross-compilation)
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0x14: ADDMOD
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0x15: MULMOD (to make ecrecover easier)
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0x51, 0x52 are INVALID.
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DONE C++/GO/PY/Java,JS
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--------------------------------------------------------
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0xf3: POST (same as call, except 5 arguments in and 0 arguments out, and instead of immediately calling it adds the call to a postqueue, to be executed after everything else (including prior-created posts) within the scope of that transaction execution is executed)
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Transaction finalisation:
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- Create contract if transaction was contract-creation
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- Keep executing earliest POST while postqueue isn't empty.
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- Refund unused gas to caller (this includes gas unused from POSTs) & give fees to miner.
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- Execute SUICIDEs.
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DONE C++/GO/PY,JS
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----------------------------------------------------
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New GHOST protocol
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• A block can contain as uncles headers which satisfy all of the following criteria:
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◦ They are valid headers (not necessarily valid blocks)
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◦ Their parent is a kth generation ancestor for k in {2, 3, 4, 5, 6, 7}
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◦ They were not uncles of the kth generation ancestor for k in {1, 2, 3, 4, 5, 6}
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• The uncle reward is increased to 15/16x the main block reward
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• The nephew reward (ie. reward for including an uncle) is set to 1/32x the main block reward
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• The target block time is 12s (ie. s/42/9/g in the diff adjustment algo)
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• >= 5 -> increase
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• <= 4 -> reduce
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SUGGESTION: target block time 4s (eg. >= 3 increase <= 2 reduce) as a temporary stress test
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DONE C++/PY/node.js, go/Java
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----------------------------------------------------
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for blocks, block.hash = sha3(rlp.encode(block.header))
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for accounts which don't have code, the code is ""
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and the codehash is "" (instead of sha3(()) as in PoC5)
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for contract-creation transactions, address is empty rather than 000000000000000...
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DONE C++/PY, go/Java/node.js
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---------------------------------------------------
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CALL, CREATE, CALLDATACOPY, etc should take memory indices as given, and not as mod 2^64 (this could just be implemented as a <=2^64 error check in the code, since using 2^64 memory will be prohibitively expensive)
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DONE C++/PY, Go/Java
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---------------------------------------------------
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PoC-6 Networking (parallel downloads)
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DONE C++, Go, node.js/Java
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---------------------------------------------------
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