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EIP 145: Bitwise shifting instructions in EVM (#8451)

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* Add SHL, SHR, SAR opcodes

* Add have_bitwise_shifting schedule flag

* Add all EIP tests for SHL

* Add SHR implementation and tests

* Implement SAR and add tests

* Add eip145transition config param

* Change map_or to map_or_else when possible
This commit is contained in:
Wei Tang
2018-05-05 16:23:50 +08:00
committed by Marek Kotewicz
parent f0c6d17ad8
commit a4c7843a07
7 changed files with 374 additions and 20 deletions
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10
ethcore/evm/src/instructions.rs
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@@ -187,6 +187,9 @@ lazy_static! {
arr[OR as usize] = InstructionInfo::new("OR", 2, 1, GasPriceTier::VeryLow);
arr[XOR as usize] = InstructionInfo::new("XOR", 2, 1, GasPriceTier::VeryLow);
arr[BYTE as usize] = InstructionInfo::new("BYTE", 2, 1, GasPriceTier::VeryLow);
arr[SHL as usize] = InstructionInfo::new("SHL", 2, 1, GasPriceTier::VeryLow);
arr[SHR as usize] = InstructionInfo::new("SHR", 2, 1, GasPriceTier::VeryLow);
arr[SAR as usize] = InstructionInfo::new("SAR", 2, 1, GasPriceTier::VeryLow);
arr[ADDMOD as usize] = InstructionInfo::new("ADDMOD", 3, 1, GasPriceTier::Mid);
arr[MULMOD as usize] = InstructionInfo::new("MULMOD", 3, 1, GasPriceTier::Mid);
arr[SIGNEXTEND as usize] = InstructionInfo::new("SIGNEXTEND", 2, 1, GasPriceTier::Low);
@@ -354,6 +357,12 @@ pub const XOR: Instruction = 0x18;
pub const NOT: Instruction = 0x19;
/// retrieve single byte from word
pub const BYTE: Instruction = 0x1a;
/// shift left operation
pub const SHL: Instruction = 0x1b;
/// logical shift right operation
pub const SHR: Instruction = 0x1c;
/// arithmetic shift right operation
pub const SAR: Instruction = 0x1d;
/// compute SHA3-256 hash
pub const SHA3: Instruction = 0x20;
@@ -589,4 +598,3 @@ pub const REVERT: Instruction = 0xfd;
pub const STATICCALL: Instruction = 0xfa;
/// halt execution and register account for later deletion
pub const SUICIDE: Instruction = 0xff;