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core/vm: fix opExchange

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This commit is contained in:
Marius van der Wijden 2024-06-25 11:44:08 +02:00
parent d1317f2f76
commit b5af91a5c9
1 changed files with 4 additions and 4 deletions
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8
core/vm/eips.go
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@ -1060,11 +1060,11 @@ func opSwapN(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]by
func opExchange(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) { func opExchange(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
var ( var (
code = scope.Contract.CodeAt(scope.CodeSection) code = scope.Contract.CodeAt(scope.CodeSection)
index = int(code[*pc+1]) + 1 index = int(code[*pc+1])
n = index>>4 + 1 n = (index >> 4) + 1
m = index%0x0F + 1 m = (index & 0x0F) + 1
) )
scope.Stack.swapN(n, m) scope.Stack.swapN(n+1, n+m+1)
*pc += 1 *pc += 1
return nil, nil return nil, nil
} }