Index: src/0dev.org/predictor/predictor.go
==================================================================
--- src/0dev.org/predictor/predictor.go
+++ src/0dev.org/predictor/predictor.go
@@ -70,11 +70,10 @@
 			// ... and stage the rest of the data in the buffer
 			ctx.input = append(ctx.input, data[blockSize-bufferLength:]...)
 			return nil
 		}
 
-		// TODO allocate this on ctx.buffer ...
 		var buf []byte = make([]byte, 1, blockSize+1)
 		for block := 0; block < len(data)/blockSize; block++ {
 			for i := 0; i < blockSize; i++ {
 				var current byte = data[(block*blockSize)+i]
 				if ctx.table[ctx.hash] == current {
@@ -117,45 +116,41 @@
 	return r(output)
 }
 
 // Returns an io.Reader implementation that wraps the provided io.Reader
 // and decompresses data according to the predictor algorithm
-func Decompressor(wrapped io.Reader) io.Reader {
+func Decompressor(reader io.Reader) io.Reader {
 	var ctx context
 	ctx.input = make([]byte, 0, 8)
 
 	return decompressor(func(output []byte) (int, error) {
 		var (
 			err       error
 			flags     byte
-			readCount int
+			rc, total int
 		)
 
 		// Sanity check for space to read into
 		if len(output) == 0 {
 			return 0, nil
 		}
 
 		// Check whether we have leftover data in the buffer
 		if len(ctx.input) > 0 {
-			readCount = copy(output, ctx.input)
-
-			// Check whether we still have leftover data in the buffer :)
-			if readCount < len(ctx.input) {
-				ctx.input = ctx.input[:copy(ctx.input, ctx.input[readCount:])]
-			}
-			return readCount, nil
-		}
-
-		// This is single-iteration only but it is fine according to io.Reader's contract ?!
-		// TODO - read all bytes from a block based on the hamming weight of the flag
-		// and just shuffle them for predictions instead of bite-sized reads ;)
-
-		// Read the flags
-		readCount, err = wrapped.Read(ctx.input[:1])
-		if readCount == 0 || err != nil {
-			return readCount, err
+			rc = copy(output, ctx.input)
+
+			// Check whether we still have leftover data in the buffer :)
+			if rc < len(ctx.input) {
+				ctx.input = ctx.input[:copy(ctx.input, ctx.input[rc:])]
+			}
+			return rc, nil
+		}
+
+		// Read the flags
+		rc, err = reader.Read(ctx.input[:1])
+		if rc == 0 || (err != nil && err != io.EOF) {
+			return rc, err
 		}
 
 		ctx.input = ctx.input[:8]
 		flags = ctx.input[0]
 
@@ -163,37 +158,39 @@
 		for ; i < 8; i++ {
 			if flags&(1<<i) > 0 {
 				// Guess was right
 				ctx.input[i] = ctx.table[ctx.hash]
 			} else {
-				readCount, err = wrapped.Read(ctx.input[i:(i + 1)])
+				rc, err = reader.Read(ctx.input[i:(i + 1)])
 
 				if err == io.EOF {
 					break
 				}
 
 				if err != nil {
-					return readCount, err
+					return rc, err
 				}
 
-				if readCount == 0 { // treat as EoF
+				if rc == 0 { // treat as EoF
 					break
 				}
 
 				ctx.table[ctx.hash] = ctx.input[i]
 			}
 
 			ctx.hash = (ctx.hash << 4) ^ uint16(ctx.input[i])
 		}
 
-		readCount = copy(output, ctx.input[:i])
+		rc = copy(output, ctx.input[:i])
+
+		total += rc
 
 		// Place any remaining bytes in the buffer
-		if uint(readCount) < i {
-			ctx.input = ctx.input[readCount:i]
+		if uint(rc) < i {
+			ctx.input = ctx.input[:copy(ctx.input, ctx.input[rc:i])]
 		} else {
 			ctx.input = ctx.input[:0]
 		}
 
-		return readCount, nil
+		return total, err
 	})
 }