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| author | Christian <c@ethdev.com> | 2014-10-29 07:29:07 +0800 |
|---|---|---|
| committer | Christian <c@ethdev.com> | 2014-10-29 21:26:37 +0800 |
| commit | 01224287f5e24f7074f398ac9b064b27b2c3877e (patch) | |
| tree | fd12d1783bbb449d64fadf506465a64f15842893 | |
| parent | 413b315a037540b9919d2ca7cef67369041b26d0 (diff) | |
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NEG->BNOT change
| -rw-r--r-- | Compiler.cpp | 12 |
1 files changed, 4 insertions, 8 deletions
diff --git a/Compiler.cpp b/Compiler.cpp index acb0a5cc..4244a3e0 100644 --- a/Compiler.cpp +++ b/Compiler.cpp @@ -111,13 +111,7 @@ void ExpressionCompiler::endVisit(UnaryOperation& _unaryOperation) append(eth::Instruction::NOT); break; case Token::BIT_NOT: // ~ - // ~a modeled as "a xor (0 - 1)" for now - append(eth::Instruction::PUSH1); - append(1); - append(eth::Instruction::PUSH1); - append(0); - append(eth::Instruction::SUB); - append(eth::Instruction::XOR); + append(eth::Instruction::BNOT); break; case Token::DELETE: // delete // a -> a xor a (= 0). @@ -149,7 +143,9 @@ void ExpressionCompiler::endVisit(UnaryOperation& _unaryOperation) // unary add, so basically no-op break; case Token::SUB: // - - append(eth::Instruction::NEG); + append(eth::Instruction::PUSH1); + append(0); + append(eth::Instruction::SUB); break; default: assert(false); // invalid operation |