diff --git a/dexlib/src/main/java/org/jf/dexlib/Code/Analysis/MethodAnalyzer.java b/dexlib/src/main/java/org/jf/dexlib/Code/Analysis/MethodAnalyzer.java
index 96451769..b02f688b 100644
--- a/dexlib/src/main/java/org/jf/dexlib/Code/Analysis/MethodAnalyzer.java
+++ b/dexlib/src/main/java/org/jf/dexlib/Code/Analysis/MethodAnalyzer.java
@@ -542,6 +542,16 @@ public class MethodAnalyzer {
                 return handleIgetWide(analyzedInstruction);
             case IGET_OBJECT:
                 return handleIgetObject(analyzedInstruction);
+            case IPUT:
+                return handle32BitPrimitiveIput(analyzedInstruction, RegisterType.Category.Integer);
+            case IPUT_BOOLEAN:
+                return handle32BitPrimitiveIput(analyzedInstruction, RegisterType.Category.Boolean);
+            case IPUT_BYTE:
+                return handle32BitPrimitiveIput(analyzedInstruction, RegisterType.Category.Byte);
+            case IPUT_CHAR:
+                return handle32BitPrimitiveIput(analyzedInstruction, RegisterType.Category.Char);
+            case IPUT_SHORT:
+                return handle32BitPrimitiveIput(analyzedInstruction, RegisterType.Category.Short);
         }
 
         assert false;
@@ -1821,6 +1831,61 @@ public class MethodAnalyzer {
         return true;
     }
 
+    private boolean handle32BitPrimitiveIput(AnalyzedInstruction analyzedInstruction,
+                                             RegisterType.Category instructionCategory) {
+        TwoRegisterInstruction instruction = (TwoRegisterInstruction)analyzedInstruction.instruction;
+
+        RegisterType objectRegisterType = analyzedInstruction.getPreInstructionRegisterType(instruction.getRegisterB());
+        assert objectRegisterType != null;
+        if (objectRegisterType.category == RegisterType.Category.Unknown) {
+            return false;
+        }
+        checkRegister(objectRegisterType, ReferenceCategories);
+
+        RegisterType sourceRegisterType = analyzedInstruction.getPreInstructionRegisterType(instruction.getRegisterA());
+        assert sourceRegisterType != null;
+        if (sourceRegisterType.category == RegisterType.Category.Unknown) {
+            return false;
+        }
+
+        //per CodeVerify.c in dalvik:
+        //java generates synthetic functions that write byte values into boolean fields
+        if (sourceRegisterType.category == RegisterType.Category.Byte &&
+            instructionCategory == RegisterType.Category.Boolean) {
+
+            sourceRegisterType = RegisterType.getRegisterType(RegisterType.Category.Boolean, null);
+        }
+
+        RegisterType instructionRegisterType = RegisterType.getRegisterType(instructionCategory, null);
+        if (!sourceRegisterType.canBeAssignedTo(instructionRegisterType)) {
+            throw new ValidationException(String.format("Cannot use %s with source register type %s.",
+                    analyzedInstruction.instruction.opcode.name, sourceRegisterType.toString()));
+        }
+
+
+        //TODO: check access
+        //TODO: allow an uninitialized "this" reference, if the current method is an <init> method
+        Item referencedItem = ((InstructionWithReference)analyzedInstruction.instruction).getReferencedItem();
+        assert referencedItem instanceof FieldIdItem;
+        FieldIdItem field = (FieldIdItem)referencedItem;
+
+        if (objectRegisterType.category != RegisterType.Category.Null &&
+            !objectRegisterType.type.extendsClass(ClassPath.getClassDef(field.getContainingClass()))) {
+            throw new ValidationException(String.format("Cannot access field %s through type %s",
+                    field.getFieldString(), objectRegisterType.type.getClassType()));
+        }
+
+        RegisterType fieldType = RegisterType.getRegisterTypeForTypeIdItem(field.getFieldType());
+
+        if (!checkArrayFieldAssignment(fieldType.category, instructionCategory)) {
+                throw new ValidationException(String.format("Cannot use %s with field %s. Incorrect field type " +
+                        "for the instruction.", analyzedInstruction.instruction.opcode.name,
+                        field.getFieldString()));
+        }
+
+        return true;
+    }
+
     private static boolean checkArrayFieldAssignment(RegisterType.Category arrayFieldCategory,
                                                   RegisterType.Category instructionCategory) {
         if (arrayFieldCategory == instructionCategory) {