diff --git a/spec/spec_tests/data/corpus/decimal128-4.json b/spec/spec_tests/data/corpus/decimal128-4.json
index ccad69a..0957019 100644
--- a/spec/spec_tests/data/corpus/decimal128-4.json
+++ b/spec/spec_tests/data/corpus/decimal128-4.json
@@ -112,6 +112,54 @@
        {
           "description": "[basx563] Near-specials (Conversion_syntax)",
           "string": "NaNs"
+       },
+       {
+          "description": "[dqbas939] overflow results at different rounding modes (Overflow & Inexact & Rounded)",
+          "string": "-7e10000"
+       },
+       {
+          "description": "[dqbsr534] negatives (Rounded & Inexact)",
+          "string": "-1.11111111111111111111111111111234650"
+       },
+       {
+          "description": "[dqbsr535] negatives (Rounded & Inexact)",
+          "string": "-1.11111111111111111111111111111234551"
+       },
+       {
+          "description": "[dqbsr533] negatives (Rounded & Inexact)",
+          "string": "-1.11111111111111111111111111111234550"
+       },
+       {
+          "description": "[dqbsr532] negatives (Rounded & Inexact)",
+          "string": "-1.11111111111111111111111111111234549"
+       },
+       {
+          "description": "[dqbsr432] check rounding modes heeded (Rounded & Inexact)",
+          "string": "1.11111111111111111111111111111234549"
+       },
+       {
+          "description": "[dqbsr433] check rounding modes heeded (Rounded & Inexact)",
+          "string": "1.11111111111111111111111111111234550"
+       },
+       {
+          "description": "[dqbsr435] check rounding modes heeded (Rounded & Inexact)",
+          "string": "1.11111111111111111111111111111234551"
+       },
+       {
+          "description": "[dqbsr434] check rounding modes heeded (Rounded & Inexact)",
+          "string": "1.11111111111111111111111111111234650"
+       },
+       {
+          "description": "[dqbas938] overflow results at different rounding modes (Overflow & Inexact & Rounded)",
+          "string": "7e10000"
+       },
+       {
+          "description": "Inexact rounding#1",
+          "string": "100000000000000000000000000000000000000000000000000000000001"
+       },
+       {
+          "description": "Inexact rounding#2",
+          "string": "1E-6177"
        }
     ]
 }
diff --git a/spec/spec_tests/data/corpus/decimal128-6.json b/spec/spec_tests/data/corpus/decimal128-6.json
index 39d631c..eba6764 100644
--- a/spec/spec_tests/data/corpus/decimal128-6.json
+++ b/spec/spec_tests/data/corpus/decimal128-6.json
@@ -75,6 +75,18 @@
             "description": "Empty string",
             "string": ""
         },
+        {
+            "description": "leading white space positive number",
+            "string": " 1"
+        },
+        {
+            "description": "leading white space negative number",
+            "string": " -1"
+        },
+        {
+            "description": "trailing white space",
+            "string": "1 "
+        },
         {
             "description": "Invalid",
             "string": "E"
diff --git a/spec/spec_tests/data/corpus/decimal128-7.json b/spec/spec_tests/data/corpus/decimal128-7.json
index 9a8d526..0b78f12 100644
--- a/spec/spec_tests/data/corpus/decimal128-7.json
+++ b/spec/spec_tests/data/corpus/decimal128-7.json
@@ -267,6 +267,10 @@
           "description": "[basx570] Near-specials (Conversion_syntax)",
           "string": "9Inf"
        },
+       {
+          "description": "[basx512] The 'baddies' tests from DiagBigDecimal, plus some new ones (Conversion_syntax)",
+          "string": "12 "
+       },
        {
           "description": "[basx517] The 'baddies' tests from DiagBigDecimal, plus some new ones (Conversion_syntax)",
           "string": "12-"