Add EIP-7762 to Osaka (WIP)

packages/block/src/header/header.ts

@@ -560,6 +560,11 @@
    * Calculates the excess blob gas for next (hopefully) post EIP 4844 block.
    */
   public calcNextExcessBlobGas(childCommon: Common): bigint {
+    const osakaForkBlock = this.common.hardforkBlock(Hardfork.Osaka)
+    if (osakaForkBlock !== null && this.number === osakaForkBlock - BIGINT_1) {
+      // at the fork, set excess_blob_gas to 0
+      return BIGINT_0
+    }
     // The validation of the fields and 4844 activation is already taken care in BlockHeader constructor
     const targetGasConsumed = (this.excessBlobGas ?? BIGINT_0) + (this.blobGasUsed ?? BIGINT_0)
     const targetBlobGasPerBlock = childCommon.param('targetBlobGasPerBlock')

packages/block/src/params.ts

@@ -91,4 +91,11 @@ export const paramsBlock: ParamsDict = {
     maxBlobGasPerBlock: 1179648, // The max blob gas allowable per block
     blobGasPriceUpdateFraction: 5007716, // The denominator used in the exponential when calculating a blob gas price
   },
+  /**
+   * Increase MIN_BASE_FEE_PER_BLOB_GAS to speed up price discovery on blob space
+   */
+  7762: {
+    // gasConfig
+    minBlobGas: 2 ** 25, // Minimum base fee per blob gas
+  },
 }

packages/common/src/eips.ts

@@ -470,6 +470,15 @@ export const eipsDict: EIPsDict = {
     minimumHardfork: Hardfork.Chainstart,
     requiredEIPs: [2935],
   },
+  /**
+   * Description : Increase MIN_BASE_FEE_PER_BLOB_GAS to speed up price discovery on blob space
+   * URL         : https://eips.ethereum.org/EIPS/eip-7762
+   * Status      : Review
+   */
+  7762: {
+    minimumHardfork: Hardfork.Osaka,
+    requiredEIPs: [4844],
+  },
   /**
    * Description : Ethereum state using a unified binary tree (experimental)
    * URL         : hhttps://eips.ethereum.org/EIPS/eip-7864

packages/common/src/hardforks.ts

@@ -166,7 +166,7 @@ export const hardforksDict: HardforksDict = {
    * Status     : Final
    */
   osaka: {
-    eips: [663, 3540, 3670, 4200, 4750, 5450, 6206, 7069, 7480, 7620, 7692, 7698],
+    eips: [663, 3540, 3670, 4200, 4750, 5450, 6206, 7069, 7480, 7620, 7692, 7698, 7762],
   },
   /**
    * Description: Next feature hardfork after osaka, internally used for verkle testing/implementation (incomplete/experimental)

packages/evm/src/evm.ts

@@ -251,7 +251,7 @@ export class EVM implements EVMInterface {
     const supportedEIPs = [
       663, 1153, 1559, 2537, 2565, 2718, 2929, 2930, 2935, 3198, 3529, 3540, 3541, 3607, 3651, 3670,
       3855, 3860, 4200, 4399, 4750, 4788, 4844, 4895, 5133, 5450, 5656, 6110, 6206, 6780, 6800,
-      7002, 7069, 7251, 7480, 7516, 7620, 7685, 7691, 7692, 7698, 7702, 7709,
+      7002, 7069, 7251, 7480, 7516, 7620, 7685, 7691, 7692, 7698, 7702, 7709, 7762,
     ]
 
     for (const eip of this.common.eips()) {

packages/vm/src/params.ts

@@ -98,4 +98,11 @@ export const paramsVM: ParamsDict = {
     maxBlobGasPerBlock: 1179648, // The max blob gas allowable per block
     blobGasPriceUpdateFraction: 5007716, // The denominator used in the exponential when calculating a blob gas price
   },
+  /**
+   * Increase MIN_BASE_FEE_PER_BLOB_GAS to speed up price discovery on blob space
+   */
+  7762: {
+    // gasConfig
+    minBlobGas: 2 ** 25, // Minimum base fee per blob gas
+  },
 }