diff --git a/vmIOandFlowOperationsTestFiller.json b/vmIOandFlowOperationsTestFiller.json
index e794fb2c9..b4ab44c44 100644
--- a/vmIOandFlowOperationsTestFiller.json
+++ b/vmIOandFlowOperationsTestFiller.json
@@ -3003,5 +3003,89 @@
             "gasPrice" : "100000000000000",
             "gas" : "10000"
         }
+    },
+
+    "byte1": {
+        "env" : {
+        "previousHash" : "5e20a0453cecd065ea59c37ac63e079ee08998b6045136a8ce6635c7912ec0b6",
+        "currentNumber" : "0",
+        "currentGasLimit" : "1000000",
+        "currentDifficulty" : "256",
+        "currentTimestamp" : "1",
+        "currentCoinbase" : "2adc25665018aa1fe0e6bc666dac8fc2697ff9ba"
+        },
+        "pre" : {
+        "0f572e5295c57f15886f9b263e2f6d2d6c7b5ec6" : {
+            "balance" : "1000000000000000000",
+            "nonce" : "0",
+            "code" : "(asm 0x112233445566778899001122334455667788990011223344556677889900aabb 0 BYTE 0x112233445566778899001122334455667788990011223344556677889900aabb 1 BYTE 0x112233445566778899001122334455667788990011223344556677889900aabb 2 BYTE 0x112233445566778899001122334455667788990011223344556677889900aabb 3 BYTE 0x112233445566778899001122334455667788990011223344556677889900aabb 4 BYTE 0x112233445566778899001122334455667788990011223344556677889900aabb 5 BYTE 0x112233445566778899001122334455667788990011223344556677889900aabb 6 BYTE 0x112233445566778899001122334455667788990011223344556677889900aabb 7 BYTE 0x112233445566778899001122334455667788990011223344556677889900aabb 8 BYTE 0x112233445566778899001122334455667788990011223344556677889900aabb 9 BYTE 0x112233445566778899001122334455667788990011223344556677889900aabb 10 BYTE 0x112233445566778899001122334455667788990011223344556677889900aabb 11 BYTE 0x112233445566778899001122334455667788990011223344556677889900aabb 12 BYTE 0x112233445566778899001122334455667788990011223344556677889900aabb 13 BYTE 0x112233445566778899001122334455667788990011223344556677889900aabb 14 BYTE 0x112233445566778899001122334455667788990011223344556677889900aabb 15 BYTE 0x112233445566778899001122334455667788990011223344556677889900aabb 16 BYTE 0x112233445566778899001122334455667788990011223344556677889900aabb 17 BYTE 0x112233445566778899001122334455667788990011223344556677889900aabb 18 BYTE 0x112233445566778899001122334455667788990011223344556677889900aabb 19 BYTE 0x112233445566778899001122334455667788990011223344556677889900aabb 20 BYTE 0x112233445566778899001122334455667788990011223344556677889900aabb 21 BYTE 0x112233445566778899001122334455667788990011223344556677889900aabb 22 BYTE 0x112233445566778899001122334455667788990011223344556677889900aabb 23 BYTE 0x112233445566778899001122334455667788990011223344556677889900aabb 24 BYTE 0x112233445566778899001122334455667788990011223344556677889900aabb 25 BYTE 0x112233445566778899001122334455667788990011223344556677889900aabb 26 BYTE 0x112233445566778899001122334455667788990011223344556677889900aabb 27 BYTE 0x112233445566778899001122334455667788990011223344556677889900aabb 28 BYTE 0x112233445566778899001122334455667788990011223344556677889900aabb 29 BYTE 0x112233445566778899001122334455667788990011223344556677889900aabb 30 BYTE 0x112233445566778899001122334455667788990011223344556677889900aabb 31 BYTE 0x112233445566778899001122334455667788990011223344556677889900aabb 32 BYTE 0x112233445566778899001122334455667788990011223344556677889900aabb 2014 BYTE 0 0 SSTORE)",
+            "storage": {}
+        }
+        },
+        "exec" : {
+            "address" : "0f572e5295c57f15886f9b263e2f6d2d6c7b5ec6",
+            "origin" : "cd1722f3947def4cf144679da39c4c32bdc35681",
+            "caller" : "cd1722f3947def4cf144679da39c4c32bdc35681",
+            "value" : "1000000000000000000",
+            "data" : "",
+            "gasPrice" : "100000000000000",
+            "gas" : "10000"
+        }
+    },
+
+    "byte1": {
+        "env" : {
+        "previousHash" : "5e20a0453cecd065ea59c37ac63e079ee08998b6045136a8ce6635c7912ec0b6",
+        "currentNumber" : "0",
+        "currentGasLimit" : "1000000",
+        "currentDifficulty" : "256",
+        "currentTimestamp" : "1",
+        "currentCoinbase" : "2adc25665018aa1fe0e6bc666dac8fc2697ff9ba"
+        },
+        "pre" : {
+        "0f572e5295c57f15886f9b263e2f6d2d6c7b5ec6" : {
+            "balance" : "1000000000000000000",
+            "nonce" : "0",
+            "code" : "(asm 0x112233445566778899001122334455667788990011223344556677889900aabb 0 BYTE 0x112233445566778899001122334455667788990011223344556677889900aabb 1 BYTE 0x112233445566778899001122334455667788990011223344556677889900aabb 2 BYTE 0x112233445566778899001122334455667788990011223344556677889900aabb 3 BYTE 0x112233445566778899001122334455667788990011223344556677889900aabb 4 BYTE 0x112233445566778899001122334455667788990011223344556677889900aabb 5 BYTE 0x112233445566778899001122334455667788990011223344556677889900aabb 6 BYTE 0x112233445566778899001122334455667788990011223344556677889900aabb 7 BYTE 0x112233445566778899001122334455667788990011223344556677889900aabb 8 BYTE 0x112233445566778899001122334455667788990011223344556677889900aabb 9 BYTE 0x112233445566778899001122334455667788990011223344556677889900aabb 10 BYTE 0x112233445566778899001122334455667788990011223344556677889900aabb 11 BYTE 0x112233445566778899001122334455667788990011223344556677889900aabb 12 BYTE 0x112233445566778899001122334455667788990011223344556677889900aabb 13 BYTE 0x112233445566778899001122334455667788990011223344556677889900aabb 14 BYTE 0x112233445566778899001122334455667788990011223344556677889900aabb 15 BYTE 0x112233445566778899001122334455667788990011223344556677889900aabb 16 BYTE 0x112233445566778899001122334455667788990011223344556677889900aabb 17 BYTE 0x112233445566778899001122334455667788990011223344556677889900aabb 18 BYTE 0x112233445566778899001122334455667788990011223344556677889900aabb 19 BYTE 0x112233445566778899001122334455667788990011223344556677889900aabb 20 BYTE 0x112233445566778899001122334455667788990011223344556677889900aabb 21 BYTE 0x112233445566778899001122334455667788990011223344556677889900aabb 22 BYTE 0x112233445566778899001122334455667788990011223344556677889900aabb 23 BYTE 0x112233445566778899001122334455667788990011223344556677889900aabb 24 BYTE 0x112233445566778899001122334455667788990011223344556677889900aabb 25 BYTE 0x112233445566778899001122334455667788990011223344556677889900aabb 26 BYTE 0x112233445566778899001122334455667788990011223344556677889900aabb 27 BYTE 0x112233445566778899001122334455667788990011223344556677889900aabb 28 BYTE 0x112233445566778899001122334455667788990011223344556677889900aabb 29 BYTE 0x112233445566778899001122334455667788990011223344556677889900aabb 30 BYTE 0x112233445566778899001122334455667788990011223344556677889900aabb 31 BYTE 0x112233445566778899001122334455667788990011223344556677889900aabb 32 BYTE 0x112233445566778899001122334455667788990011223344556677889900aabb 2014 BYTE 0 0 SSTORE)",
+            "storage": {}
+        }
+        },
+        "exec" : {
+            "address" : "0f572e5295c57f15886f9b263e2f6d2d6c7b5ec6",
+            "origin" : "cd1722f3947def4cf144679da39c4c32bdc35681",
+            "caller" : "cd1722f3947def4cf144679da39c4c32bdc35681",
+            "value" : "1000000000000000000",
+            "data" : "",
+            "gasPrice" : "100000000000000",
+            "gas" : "10000"
+        }
+    },
+
+    "memory1": {
+        "env" : {
+        "previousHash" : "5e20a0453cecd065ea59c37ac63e079ee08998b6045136a8ce6635c7912ec0b6",
+        "currentNumber" : "0",
+        "currentGasLimit" : "1000000",
+        "currentDifficulty" : "256",
+        "currentTimestamp" : "1",
+        "currentCoinbase" : "2adc25665018aa1fe0e6bc666dac8fc2697ff9ba"
+        },
+        "pre" : {
+        "0f572e5295c57f15886f9b263e2f6d2d6c7b5ec6" : {
+            "balance" : "1000000000000000000",
+            "nonce" : "0",
+            "code" : "(asm 2 0 MSTORE8 3 1 MSTORE8 0 MLOAD 1 MLOAD ADD 2 MSTORE 64 0 RETURN)",
+            "storage": {}
+        }
+        },
+        "exec" : {
+            "address" : "0f572e5295c57f15886f9b263e2f6d2d6c7b5ec6",
+            "origin" : "cd1722f3947def4cf144679da39c4c32bdc35681",
+            "caller" : "cd1722f3947def4cf144679da39c4c32bdc35681",
+            "value" : "1000000000000000000",
+            "data" : "",
+            "gasPrice" : "100000000000000",
+            "gas" : "10000"
+        }
     }
 }