Implement EIP-7516

src/ethereum/cancun/vm/instructions/__init__.py

@@ -98,6 +98,7 @@ class Ops(enum.Enum):
     SELFBALANCE = 0x47
     BASEFEE = 0x48
     BLOBHASH = 0x49
+    BLOBBASEFEE = 0x4A
 
     # Control Flow Ops
     STOP = 0x00
@@ -271,6 +272,7 @@ class Ops(enum.Enum):
     Ops.SELFBALANCE: environment_instructions.self_balance,
     Ops.BASEFEE: environment_instructions.base_fee,
     Ops.BLOBHASH: environment_instructions.blob_hash,
+    Ops.BLOBBASEFEE: environment_instructions.blob_base_fee,
     Ops.SSTORE: storage_instructions.sstore,
     Ops.JUMP: control_flow_instructions.jump,
     Ops.JUMPI: control_flow_instructions.jumpi,

src/ethereum/cancun/vm/instructions/environment.py

@@ -25,15 +25,16 @@
 from ..exceptions import OutOfBoundsRead
 from ..gas import (
     GAS_BASE,
+    GAS_BLOBHASH_OPCODE,
     GAS_COLD_ACCOUNT_ACCESS,
     GAS_COPY,
     GAS_FAST_STEP,
-    GAS_BLOBHASH_OPCODE,
     GAS_RETURN_DATA_COPY,
     GAS_VERY_LOW,
     GAS_WARM_ACCESS,
     calculate_gas_extend_memory,
     charge_gas,
+    get_blob_gasprice,
 )
 from ..stack import pop, push
 
@@ -563,3 +564,27 @@ def blob_hash(evm: Evm) -> None:
 
     # PROGRAM COUNTER
     evm.pc += 1
+
+
+def blob_base_fee(evm: Evm) -> None:
+    """
+    Pushes the blob base fee on to the stack.
+
+    Parameters
+    ----------
+    evm :
+        The current EVM frame.
+
+    """
+    # STACK
+    pass
+
+    # GAS
+    charge_gas(evm, GAS_BASE)
+
+    # OPERATION
+    blob_base_fee = get_blob_gasprice(evm.env)
+    push(evm.stack, U256(blob_base_fee))
+
+    # PROGRAM COUNTER
+    evm.pc += 1

whitelist.txt

@@ -413,4 +413,5 @@ KZG
 BLOBHASH
 eth2spec
 Bytes48
-BLS
+BLS
+BLOBBASEFEE