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Merge pull request #7342 from ethereum/extendedMemorySizeInterpreter

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Make memory addresses wrap in interpreter.
This commit is contained in:
chriseth
2019-09-05 13:14:57 +02:00
committed by GitHub
parent 96980d0bfe 5b4b4011c7
commit 7f797bc6ae
2 changed files with 20 additions and 7 deletions
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test/tools/yulInterpreter/EVMInstructionInterpreter.cpp
+6 -7
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@@ -248,16 +248,15 @@ u256 EVMInstructionInterpreter::eval(
return m_state.gaslimit;
// --------------- memory / storage / logs ---------------
case Instruction::MLOAD:
if (accessMemory(arg[0], 0x20))
return readMemoryWord(arg[0]);
return 0;
accessMemory(arg[0], 0x20);
return readMemoryWord(arg[0]);
case Instruction::MSTORE:
if (accessMemory(arg[0], 0x20))
writeMemoryWord(arg[0], arg[1]);
accessMemory(arg[0], 0x20);
writeMemoryWord(arg[0], arg[1]);
return 0;
case Instruction::MSTORE8:
if (accessMemory(arg[0], 1))
m_state.memory[arg[0]] = uint8_t(arg[1] & 0xff);
accessMemory(arg[0], 1);
m_state.memory[arg[0]] = uint8_t(arg[1] & 0xff);
return 0;
case Instruction::SLOAD:
return m_state.storage[h256(arg[0])];