You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 
 

40 lines
1010 B

#include "Instruction.h"
#include <llvm/ADT/APInt.h>
namespace dev
{
namespace eth
{
namespace jit
{
llvm::APInt readPushData(bytes::const_iterator& _curr, bytes::const_iterator _end)
{
auto pushInst = *_curr;
assert(Instruction(pushInst) >= Instruction::PUSH1 && Instruction(pushInst) <= Instruction::PUSH32);
auto numBytes = pushInst - static_cast<size_t>(Instruction::PUSH1) + 1;
llvm::APInt value(256, 0);
++_curr; // Point the data
for (decltype(numBytes) i = 0; i < numBytes; ++i)
{
byte b = (_curr != _end) ? *_curr++ : 0;
value <<= 8;
value |= b;
}
--_curr; // Point the last real byte read
return value;
}
void skipPushData(bytes::const_iterator& _curr, bytes::const_iterator _end)
{
auto pushInst = *_curr;
assert(Instruction(pushInst) >= Instruction::PUSH1 && Instruction(pushInst) <= Instruction::PUSH32);
auto numBytes = pushInst - static_cast<size_t>(Instruction::PUSH1) + 1;
--_end;
for (decltype(numBytes) i = 0; i < numBytes && _curr < _end; ++i, ++_curr) {}
}
}
}
}