diff --git a/vmArithmeticTestFiller.json b/vmArithmeticTestFiller.json
index 19224cc2e..16e085a12 100644
--- a/vmArithmeticTestFiller.json
+++ b/vmArithmeticTestFiller.json
@@ -393,6 +393,34 @@
         }
     },
 
+    "mulUnderFlow": {
+        "env" : {
+            "previousHash" : "5e20a0453cecd065ea59c37ac63e079ee08998b6045136a8ce6635c7912ec0b6",
+            "currentNumber" : "0",
+            "currentGasLimit" : "1000000",
+            "currentDifficulty" : "256",
+            "currentTimestamp" : "1",
+            "currentCoinbase" : "2adc25665018aa1fe0e6bc666dac8fc2697ff9ba"
+        },
+        "pre" : {
+            "0f572e5295c57f15886f9b263e2f6d2d6c7b5ec6" : {
+                "balance" : "1000000000000000000",
+                "nonce" : "0",
+                "code" : "(asm 1 MUL 01 SSTORE)",
+                "storage": {}
+            }
+        },
+        "exec" : {
+            "address" : "0f572e5295c57f15886f9b263e2f6d2d6c7b5ec6",
+            "origin" : "cd1722f2947def4cf144679da39c4c32bdc35681",
+            "caller" : "cd1722f2947def4cf144679da39c4c32bdc35681",
+            "value" : "1000000000000000000",
+            "data" : "",
+            "gasPrice" : "100000000000000",
+            "gas" : "100000"
+        }
+    },
+
     "sub0": {
         "env" : {
         "previousHash" : "5e20a0453cecd065ea59c37ac63e079ee08998b6045136a8ce6635c7912ec0b6",
@@ -4860,8 +4888,7 @@
             "0f572e5295c57f15886f9b263e2f6d2d6c7b5ec6" : {
                 "balance" : "1000000000000000000",
                 "nonce" : "0",
-                "//" : "{ asm PUSH1 0x05 JUMP JUMPDEST STOP JUMPDEST PUSH2 0x8000 DUP1 PUSH9 0x01000000000000001 SIGNEXTEND PUSH2 0x8001 GT PUSH1 0x03 JUMPI PUSH4 0xbadf000d PUSH1 0x11 SSTORE}",
-                "code" : "0x6005565b005b61800080680100000000000000010b6180011160035763badf000d601155",
+                "code" : "(asm 0x05 JUMP JUMPDEST STOP JUMPDEST 0x8000 DUP1 0x010000000000000001 SIGNEXTEND 0x8001 GT 0x03 JUMPI 0xbadf000d 0x11 SSTORE)",
                 "storage": {}
             }
         },
diff --git a/vmBlockInfoTestFiller.json b/vmBlockInfoTestFiller.json
index c86a9f2cb..2455b2387 100644
--- a/vmBlockInfoTestFiller.json
+++ b/vmBlockInfoTestFiller.json
@@ -27,6 +27,34 @@
         }
     },
 
+    "blockhashUnderFlow": {
+        "env" : {
+        "previousHash" : "5e20a0453cecd065ea59c37ac63e079ee08998b6045136a8ce6635c7912ec0b6",
+        "currentNumber" : "1",
+        "currentGasLimit" : "1000000",
+        "currentDifficulty" : "256",
+        "currentTimestamp" : "1",
+        "currentCoinbase" : "2adc25665018aa1fe0e6bc666dac8fc2697ff9ba"
+        },
+        "pre" : {
+        "0f572e5295c57f15886f9b263e2f6d2d6c7b5ec6" : {
+            "balance" : "100000000000000000000000",
+            "nonce" : "0",
+            "code" : "(asm BLOCKHASH)",
+            "storage": {}
+        }
+        },
+        "exec" : {
+            "address" : "0f572e5295c57f15886f9b263e2f6d2d6c7b5ec6",
+            "origin" : "cd1722f3947def4cf144679da39c4c32bdc35681",
+            "caller" : "cd1722f3947def4cf144679da39c4c32bdc35681",
+            "value" : "1000000000000000000",
+            "data" : "",
+            "gasPrice" : "100000000000000",
+            "gas" : "100000"
+        }
+    },
+
     "blockhashMyBlock": {
         "env" : {
         "previousHash" : "5e20a0453cecd065ea59c37ac63e079ee08998b6045136a8ce6635c7912ec0b6",
diff --git a/vmEnvironmentalInfoTestFiller.json b/vmEnvironmentalInfoTestFiller.json
index 4de871d9e..d9e1ef654 100644
--- a/vmEnvironmentalInfoTestFiller.json
+++ b/vmEnvironmentalInfoTestFiller.json
@@ -563,6 +563,34 @@
         }
     },
 
+    "calldatacopyUnderFlow": {
+        "env" : {
+            "previousHash" : "5e20a0453cecd065ea59c37ac63e079ee08998b6045136a8ce6635c7912ec0b6",
+            "currentNumber" : "0",
+            "currentGasLimit" : "1000000",
+            "currentDifficulty" : "256",
+            "currentTimestamp" : "1",
+            "currentCoinbase" : "2adc25665018aa1fe0e6bc666dac8fc2697ff9ba"
+        },
+        "pre" : {
+            "0f572e5295c57f15886f9b263e2f6d2d6c7b5ec6" : {
+                "balance" : "100000000000000000000000",
+                "nonce" : "0",
+                "code" : "(asm 1 2 CALLDATACOPY)",
+                "storage": {}
+            }
+        },
+        "exec" : {
+            "address" : "0f572e5295c57f15886f9b263e2f6d2d6c7b5ec6",
+            "origin" : "cd1722f3947def4cf144679da39c4c32bdc35681",
+            "caller" : "cd1722f3947def4cf144679da39c4c32bdc35681",
+            "value" : "1000000000000000000",
+            "data" : "0x1234567890abcdef01234567890abcdef",
+            "gasPrice" : "1000000000",
+            "gas" : "100000000000"
+        }
+    },
+
     "calldatacopyZeroMemExpansion": {
         "env" : {
             "previousHash" : "5e20a0453cecd065ea59c37ac63e079ee08998b6045136a8ce6635c7912ec0b6",
@@ -1129,6 +1157,41 @@
             "gas" : "100000000000"
         }
     },
+
+    "extcodesizeUnderFlow": {
+        "env" : {
+            "previousHash" : "5e20a0453cecd065ea59c37ac63e079ee08998b6045136a8ce6635c7912ec0b6",
+            "currentNumber" : "0",
+            "currentGasLimit" : "1000000",
+            "currentDifficulty" : "256",
+            "currentTimestamp" : "1",
+            "currentCoinbase" : "2adc25665018aa1fe0e6bc666dac8fc2697ff9ba"
+        },
+        "pre" : {
+            "0f572e5295c57f15886f9b263e2f6d2d6c7b5ec6" : {
+                "balance" : "100000000000000000000000",
+                "nonce" : "0",
+                "code" : "(asm EXTCODESIZE)",
+                "storage": {}
+            },
+            "cd1722f3947def4cf144679da39c4c32bdc35681" : {
+                "balance" : "100000000000000000000000",
+                "nonce" : "0",
+                "code" : "{  [[ 0 ]] (EQ (EXTCODESIZE (CALLER)) (CODESIZE) ) }",
+                "storage": {}
+            }
+        },
+        "exec" : {
+            "address" : "0f572e5295c57f15886f9b263e2f6d2d6c7b5ec6",
+            "origin" : "cd1722f3947def4cf144679da39c4c32bdc35681",
+            "caller" : "cd1722f3947def4cf144679da39c4c32bdc35681",
+            "value" : "1000000000000000000",
+            "data" : "0x1234567890abcdef01234567890abcdef",
+            "gasPrice" : "123456789",
+            "gas" : "100000000000"
+        }
+    },
+
     "extcodesize1": {
         "env" : {
             "previousHash" : "5e20a0453cecd065ea59c37ac63e079ee08998b6045136a8ce6635c7912ec0b6",