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add dencun upgrade instrs #64

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add dencun upgrade instrs #64

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55fcd6e
add dencun new mcopy instr
Apr 3, 2024
35491ba
add __init__ in tests
Apr 3, 2024
e2813d3
add blobhash, blobbasefee, tload, tstore instrs
Apr 3, 2024
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29 changes: 26 additions & 3 deletions pyevmasm/evmasm.py
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Original file line number Diff line number Diff line change
Expand Up @@ -5,7 +5,7 @@
from future.builtins import next, bytes # type: ignore
import copy

DEFAULT_FORK = "shanghai"
DEFAULT_FORK = "dencun"

"""
Example use::
Expand Down Expand Up @@ -1095,12 +1095,33 @@ def __repr__(self):
london_instruction_table, previous_fork=istanbul_instruction_table
)

shanghai_instruction_table = {0x5f: ("PUSH", 0, 0, 1, 2, "Place 0 constant byte item on stack.")}
shanghai_instruction_table = {
0x5F: ("PUSH", 0, 0, 1, 2, "Place 0 constant byte item on stack.")
}

shanghai_instruction_table = InstructionTable( # type: ignore
shanghai_instruction_table, previous_fork=london_instruction_table
)

dencun_instruction_table = {
0x5E: ("MCOPY", 0, 3, 0, 3, "Copy memory areas."),
0x49: ("BLOBHASH", 0, 1, 1, 1, "Get versioned hashes."),
0x4A: (
"BLOBBASEFEE",
0,
0,
1,
2,
"Returns the value of the blob base-fee of the current block.",
),
0x5C: ("TLOAD", 0, 1, 1, 100, "Load word from transient storage."),
0x5D: ("TSTORE", 0, 2, 0, 100, "Save word to transient storage."),
}

dencun_instruction_table = InstructionTable( # type: ignore
dencun_instruction_table, previous_fork=shanghai_instruction_table
)

accepted_forks = (
"frontier",
"homestead",
Expand All @@ -1112,7 +1133,8 @@ def __repr__(self):
"serenity",
"istanbul",
"london",
"shanghai"
"shanghai",
"dencun",
)


Expand All @@ -1128,6 +1150,7 @@ def __repr__(self):
"istanbul": istanbul_instruction_table,
"london": london_instruction_table,
"shanghai": shanghai_instruction_table,
"dencun": dencun_instruction_table,
}


Expand Down
Empty file added tests/__init__.py
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20 changes: 20 additions & 0 deletions tests/test_EVMAssembler.py
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Original file line number Diff line number Diff line change
Expand Up @@ -135,6 +135,26 @@ def test_shanghai_fork(self):
self.assertTrue(insn.pops == 0)
self.assertTrue(insn.pushes == 1)
self.assertTrue(insn.operand_size == 0)

def test_dencun_fork(self):
insn = EVMAsm.disassemble_one(b"\x5e", fork="dencun")
self.assertTrue(insn.mnemonic == "MCOPY")
self.assertTrue(insn.fee == 3)
self.assertTrue(insn.pops == 3)
self.assertTrue(insn.pushes == 0)
self.assertTrue(insn.operand_size == 0)

insn = EVMAsm.disassemble_one(b"\x49", fork="dencun")
self.assertTrue(insn.mnemonic == "BLOBHASH")

insn = EVMAsm.disassemble_one(b"\x4a", fork="dencun")
self.assertTrue(insn.mnemonic == "BLOBBASEFEE")

insn = EVMAsm.disassemble_one(b"\x5c", fork="dencun")
self.assertTrue(insn.mnemonic=="TLOAD")

insn = EVMAsm.disassemble_one(b"\x5d", fork="dencun")
self.assertTrue(insn.mnemonic=="TSTORE")

def test_assemble_DUP1_regression(self):
insn = EVMAsm.assemble_one("DUP1")
Expand Down