diff --git a/avr/usbload/Makefile b/avr/usbload/Makefile
index 5b1e2e8..a02816b 100644
--- a/avr/usbload/Makefile
+++ b/avr/usbload/Makefile
@@ -25,8 +25,8 @@ AVRDUDE = avrdude -c usbasp -p $(DEVICE)
 SIZE    = avr-size
 BOOT_LOADER = 2
 BOOT_COMPRESS = fastlz
-BOOT_ROM01  = ../../roms/qd16boot01.smc
-BOOT_ROM02  = ../../roms/qd16boot02.smc
+BOOT_ROM01  = ../../roms/qd16boot_ver01.smc
+BOOT_ROM02  = ../../roms/qd16boot_ver02.smc
 
 
 ifeq ($(DEBUG),1)
@@ -102,7 +102,7 @@ fuse:
 flash: main.hex
 	$(AVRDUDE) -U flash:w:main.hex:i
 
-bootconvert:
+convert-boot-rom:
 	$(BOOT_CONVERTER) $(BOOT_ROM) 
 
 release: main.hex
diff --git a/avr/usbload/command.c b/avr/usbload/command.c
index f814ad7..6802938 100644
--- a/avr/usbload/command.c
+++ b/avr/usbload/command.c
@@ -121,8 +121,8 @@ void boot_startup_rom(uint16_t init_delay)
 #endif 
 
 #if defined(BOOT_COMPRESS_FASTLZ) 
-    for (i = 0; i < ROM_BUFFER_CNT; i++) {
-    }
+    uint32_t rlen = _rom_size[0]+ _rom_size[1];
+    fastlz_decompress2(_rom[0], _rom[0], rlen);
 #endif 
 
     info_P(PSTR("\n"));
diff --git a/avr/usbload/fastlz.c b/avr/usbload/fastlz.c
new file mode 100644
index 0000000..ddda405
--- /dev/null
+++ b/avr/usbload/fastlz.c
@@ -0,0 +1,198 @@
+
+#if defined(__GNUC__) && (__GNUC__ > 2)
+#define FASTLZ_EXPECT_CONDITIONAL(c)    (__builtin_expect((c), 1))
+#define FASTLZ_UNEXPECT_CONDITIONAL(c)  (__builtin_expect((c), 0))
+#else
+#define FASTLZ_EXPECT_CONDITIONAL(c)    (c)
+#define FASTLZ_UNEXPECT_CONDITIONAL(c)  (c)
+#endif
+
+/*
+ * Use inlined functions for supported systems.
+ */
+#if defined(__GNUC__) || defined(__DMC__) || defined(__POCC__) || defined(__WATCOMC__) || defined(__SUNPRO_C)
+#define FASTLZ_INLINE inline
+#elif defined(__BORLANDC__) || defined(_MSC_VER) || defined(__LCC__)
+#define FASTLZ_INLINE __inline
+#else 
+#define FASTLZ_INLINE
+#endif
+
+typedef unsigned char  flzuint8;
+typedef unsigned short flzuint16;
+typedef unsigned int   flzuint32;
+
+/* prototypes */
+int fastlz_decompress(const void* input, int length, void* output);
+
+#define MAX_DISTANCE  256
+
+
+#include <avr/pgmspace.h>       /* required by usbdrv.h */
+#include <util/delay.h>         /* for _delay_ms() */
+#include <avr/interrupt.h>      /* for sei() */
+
+#include "sram.h"
+#include "debug.h"
+#include "info.h"
+#include "ringbuffer.h"
+
+//#define log2(NUM) printf("%i op=%i(%x) ip=%i(%x) ref=%i(%x) dist=%i buf->end=%i len=%i ctrl=%i ofs=%i(%i) limit=%i\n",NUM, output_index,output[output_index], input_index,input[input_index],ref_index,input[ref_index],output_index - ref_index,ref_buffer_ptr->end, len, ctrl, ofs, ofs>>6,input_index < ip_limit); 
+
+#define log2(NUM) info_P(PSTR("%i op=%i ip=%i ref=%i dist=%i buf->end=%i len=%i ctrl=%i ofs=%i(%i) limit=%i\n"),NUM, output_index, input_index,ref_index,output_index - ref_index,ref_buffer_ptr->end, len, ctrl, ofs, ofs>>6,input_index < ip_limit); 
+
+#define OUTPUT_INC(B)  do { \
+    __b = B;\
+    sram_bulk_write(__b);\
+    sram_bulk_write_next();\
+    bufferWrite(ref_buffer_ptr, __b);\
+    output_index++;\
+} while (0)
+
+#define OUTPUT_INC_FROM_REFINC()  do { \
+    __dist = (output_index-ref_index); \
+    __c = buffer_get(ref_buffer_ptr, __dist); \
+    info_P(PSTR("output_index=%i ref_index=%i(%x) dist=%i(%x) buf->end=%i buf->size=%i position=%i\n"), output_index, ref_index, __c, __dist, __c, ref_buffer_ptr->end, ref_buffer_ptr->size, __mod(ref_buffer_ptr->end - __dist, ref_buffer_ptr->size)); \
+    sram_bulk_write(__c);\
+    sram_bulk_write_next();\
+    output_index++;\
+    bufferWrite(ref_buffer_ptr, __c);\
+    ref_index++;\
+} while (0)
+
+
+#define FROM_REF(OUT)  do { \
+    flzuint16 __dist = (output_index-ref_index+1); \
+    OUT = buffer_get(ref_buffer_ptr, __dist); \
+} while (0)
+
+#define OUTBYTE(OUT) do { \
+    sram_bulk_write(OUT);\
+    sram_bulk_write_next();\
+    output_index++;\
+} while(0)
+
+#define INBYTE(IN) do { \
+    cli();\
+    IN = pgm_read_byte((PGM_VOID_P)input_index++);  \
+    sei();\
+} while(0)
+
+#define INPUT_INC(IN)  do { \
+    cli();\
+    if (input_index<32768) { \
+        IN = pgm_read_byte((PGM_VOID_P)input_index++);  \
+    } else { \
+        IN = pgm_read_byte((PGM_VOID_P)input_index-32768);  \
+        input_index++; \
+    }\
+    sei();\
+} while (0)
+
+ring_buffer_typedef(unsigned char, byte_buffer);
+
+int fastlz_decompress2(unsigned char* input1, unsigned char* input2, int length)
+{
+  flzuint32 input_index = 0;
+  flzuint32 ip_limit = length;
+  flzuint32 output_index = 0;
+  flzuint32 ref_index = 0;
+  //flzuint32 ctrl = (input[input_index++]) & 31;
+  flzuint32 ctrl;
+  INPUT_INC(ctrl);
+  ctrl = ctrl & 31;
+
+
+
+  int loop = 1;
+
+  byte_buffer ref_buffer;
+  buffer_init(ref_buffer, MAX_DISTANCE, unsigned char);
+  byte_buffer* ref_buffer_ptr;
+  ref_buffer_ptr = &ref_buffer;
+
+  do
+  {
+    flzuint8 __b;
+    flzuint16 __dist;
+    flzuint8 __c; 
+    flzuint8 tmp;
+
+    ref_index = output_index;
+    flzuint32 len = ctrl >> 5;
+    flzuint32 ofs = (ctrl & 31) << 6;
+    log2(1)
+    if(ctrl >= 32)
+    {
+      len--;
+      ref_index -= ofs;
+      if (len == 7-1){
+        INPUT_INC(tmp);
+        len += tmp;
+        //len += input[input_index++];
+      }
+      INPUT_INC(tmp);
+      ref_index -= tmp;
+      //ref_index -= input[input_index++];
+      
+      log2(1)
+
+      if(FASTLZ_EXPECT_CONDITIONAL( input_index < ip_limit))
+        INPUT_INC(ctrl);
+        //ctrl = input[input_index++];
+      else
+        loop = 0;
+      
+      log2(1)
+
+      if(ref_index == output_index)
+      {
+        log2(2)
+        //flzuint8 b = output[ref_index-1];
+        flzuint8 b;
+        FROM_REF(b);
+        
+
+        OUTPUT_INC(b);
+        OUTPUT_INC(b);
+        OUTPUT_INC(b);
+        for(; len; --len)
+            OUTPUT_INC(b);
+      }
+      else
+      {
+        log2(3)
+        ref_index--;
+        OUTPUT_INC_FROM_REFINC();
+        OUTPUT_INC_FROM_REFINC();
+        OUTPUT_INC_FROM_REFINC();
+        for(; len; --len)
+            OUTPUT_INC_FROM_REFINC();
+      }
+    }
+    else
+    {
+      ctrl++;
+      log2(4)
+      INPUT_INC(tmp);
+      OUTPUT_INC(tmp);
+      //OUTPUT_INC(input[input_index++]);
+      for(--ctrl; ctrl; ctrl--){
+        log2(5)
+        INPUT_INC(tmp);
+        OUTPUT_INC(tmp);
+        //OUTPUT_INC(input[input_index++]);
+    } 
+
+      loop = FASTLZ_EXPECT_CONDITIONAL(input_index < ip_limit);
+      if (loop){
+        INPUT_INC(ctrl);
+        //ctrl = input[input_index++];
+     }
+      log2(6)
+    }
+  }
+  while(FASTLZ_EXPECT_CONDITIONAL(loop));
+  buffer_destroy(ref_buffer_ptr);
+  return 0;
+}
diff --git a/avr/usbload/fastlz.h b/avr/usbload/fastlz.h
new file mode 100644
index 0000000..284ee2d
--- /dev/null
+++ b/avr/usbload/fastlz.h
@@ -0,0 +1,14 @@
+#ifndef FASTLZ_H
+#define FASTLZ_H
+
+#define FASTLZ_VERSION 0x000100
+
+#define FASTLZ_VERSION_MAJOR     0
+#define FASTLZ_VERSION_MINOR     0
+#define FASTLZ_VERSION_REVISION  0
+
+#define FASTLZ_VERSION_STRING "0.1.0"
+
+int fastlz_decompress2(const void* input1, const void* input2, int length); 
+
+#endif /* FASTLZ_H */
diff --git a/avr/usbload/loader.h b/avr/usbload/loader.h
index 3db874b..7e6698a 100644
--- a/avr/usbload/loader.h
+++ b/avr/usbload/loader.h
@@ -1,11 +1,11 @@
 /*
-File: qd16boot02.smc
-Time: Sat, 16 Jul 2016 17:06:14
+File: qd16boot_ver02.smc
+Time: Sun, 07 Aug 2016 20:21:45
 */
 #ifndef __FIFO_H__
 #define __FIFO_H__
 
-#define LOADER_NAME "qd16boot02.smc"
+#define LOADER_NAME "qd16boot_ver02.smc"
 #define LOADER_COMPRESS "FASTLZ"
 #define ROM_FASTLZ_SIZE     48271
 #define ROM_BUFFER_CNT   2
diff --git a/avr/usbload/ringbuffer.h b/avr/usbload/ringbuffer.h
new file mode 100644
index 0000000..2e8acb2
--- /dev/null
+++ b/avr/usbload/ringbuffer.h
@@ -0,0 +1,42 @@
+#ifndef _ringbuffer_h
+#define _ringbuffer_h
+
+int __mod(int a, int b)
+{
+    int r = a % b;
+    return r < 0 ? r + b : r;
+}
+
+#define ring_buffer_typedef(T, NAME) \
+  typedef struct { \
+    int size; \
+    int start; \
+    int end; \
+    T* elems; \
+  } NAME
+
+#define buffer_init(BUF, S, T) \
+  BUF.size = S+1; \
+  BUF.start = 0; \
+  BUF.end = 0; \
+  BUF.elems = (T*)calloc(BUF.size, sizeof(T))
+
+
+#define buffer_destroy(BUF) free(BUF->elems)
+#define nex_start_index(BUF) ((BUF->start + 1) % BUF->size)
+#define is_buffer_empty(BUF) (BUF->end == BUF->start)
+#define buffer_get(BUF, INDEX) (BUF->elems[__mod(BUF->end - INDEX, BUF->size)])
+
+#define bufferWrite(BUF, ELEM) \
+  BUF->elems[BUF->end] = ELEM; \
+  BUF->end = (BUF->end + 1) % BUF->size; \
+  if (is_buffer_empty(BUF)) { \
+    BUF->start = nex_start_index(BUF); \
+  }
+
+#define bufferRead(BUF, ELEM) \
+    ELEM = BUF->elems[BUF->start]; \
+    BUF->start = nex_start_index(BUF);
+
+#endif
+
diff --git a/roms/qd16boot01.smc b/roms/qd16boot_ver01.smc
similarity index 100%
rename from roms/qd16boot01.smc
rename to roms/qd16boot_ver01.smc
diff --git a/roms/qd16boot02.smc b/roms/qd16boot_ver02.smc
similarity index 100%
rename from roms/qd16boot02.smc
rename to roms/qd16boot_ver02.smc