fix log gas (#507)

privacy-scaling-explorations · May 12, 2022 · 223b38c · 223b38c
1 parent 818cf2e
commit 223b38c
Showing 1 changed file with 6 additions and 3 deletions.
diff --git a/zkevm-circuits/src/evm_circuit/execution/logs.rs b/zkevm-circuits/src/evm_circuit/execution/logs.rs
@@ -155,7 +155,8 @@ impl<F: Field> ExecutionGadget<F> for LogGadget<F> {
             },
         );
 
-        let gas_cost = GasCost::LOG.as_u64().expr() * topic_count.clone()
+        let gas_cost = GasCost::LOG.as_u64().expr()
+            + GasCost::LOG.as_u64().expr() * topic_count.clone()
             + 8.expr() * from_bytes::expr(&msize.cells)
             + memory_expansion.gas_cost();
         // State transition
@@ -407,8 +408,10 @@ mod test {
             memory_expansion_gas_cost(curr_memory_word_size, next_memory_word_size);
         let topic_count = topics.len();
         // dynamic calculate topic_count
-        let gas_cost =
-            GasCost::LOG.as_u64() * topic_count as u64 + 8 * msize.as_u64() + memory_expension_gas;
+        let gas_cost = GasCost::LOG.as_u64()
+            + GasCost::LOG.as_u64() * topic_count as u64
+            + 8 * msize.as_u64()
+            + memory_expension_gas;
         let codes = [
             OpcodeId::LOG0,
             OpcodeId::LOG1,