diff --git a/rocket-chip b/rocket-chip
index 17c0155..356304d 160000
--- a/rocket-chip
+++ b/rocket-chip
@@ -1 +1 @@
-Subproject commit 17c01556ff4de95be42cad074bcd6637a617aa80
+Subproject commit 356304dbd22075f0f50a47201950803747fe7948
diff --git a/tb/sw/src/check_custom_ins.py b/tb/sw/src/check_custom_ins.py
index b44265a..a2dc6e1 100644
--- a/tb/sw/src/check_custom_ins.py
+++ b/tb/sw/src/check_custom_ins.py
@@ -7,8 +7,8 @@ import re
 
 
 
-def search_custom_inst(logfile, opcode, funct, xd = 0, xs1 = 0, xs2 = 0, xd_filter = 0, xs1_filter = 0, xs2_filter = 0):
-    lines = logfile.readlines()
+def search_custom_inst(logdata, opcode, funct, xd = 0, xs1 = 0, xs2 = 0, xd_filter = 0, xs1_filter = 0, xs2_filter = 0):
+    lines = logdata
     funct3 = 0
     if xd != 0:
         funct3 = funct3 | 0x4
@@ -33,24 +33,46 @@ def search_custom_inst(logfile, opcode, funct, xd = 0, xs1 = 0, xs2 = 0, xd_filt
                 ins_funct3 = (inst >> 12) & 0x7
                 if (ins_funct == funct) and (funct3 == ins_funct3):
                     outline = line.rstrip()
-                    if (xs1 != 0) and ((rreg1_val & xs1_filter) != 0):
+                    if (xs1 != 0) and ((rreg1_val & xs1_filter) == xs1_filter):
                         print(outline)
-                    if (xd != 0) and ((wreg_val & xd_filter) != 0):
+                    if (xd != 0) and ((wreg_val & xd_filter) == xd_filter):
                         print(outline)
-                    if (xs2 != 0) and ((rreg2_val & xs2_filter) != 0):
+                    if (xs2 != 0) and ((rreg2_val & xs2_filter) == xs2_filter):
                         print(outline)
                 else:
                     pass
 
+
+def get_bit_pos(val):
+    bits_pos = list()
+    val = val & 0xffffffff
+
+    for i in range(32):
+        if (val & (1 << i)) != 0:
+            bits_pos.insert(0, i)
+    return bits_pos
+
 if __name__ == '__main__':
     path = sys.argv[0]
     path = path.split('/')[0:-1]
     path = '/'.join(path)
     logfile_path = path + '/../build/cpu1_log.txt'
+    
     if len(sys.argv) > 1:
         logfile_path = sys.argv[1]
     print(logfile_path)
 
     with open(logfile_path, 'rt') as logfile:
-        search_custom_inst(logfile, 0xb, 0x17, xs1=1, xs1_filter=(1<<7))
+        logdata = logfile.readlines()
+
+        filter = 1<<7
+        print(f'custom0-ins: clear roccs int flag, bit filter:', get_bit_pos(filter))
+        search_custom_inst(logdata, 0xb, 0x17, xs1=1, xs1_filter=filter)
+
+        '''
+        filter = (1<<10) | (1 << 7) | (1 << 2) | (1 << 1)
+        print('custom0-ins: clear roccs int flag, bit filter:', get_bit_pos(filter))
+        search_custom_inst(logdata, 0xb, 0x17, xs1=1, xs1_filter=filter)
+        '''
+        
         logfile.close()
diff --git a/tb/sw/src/halfLvdsMacSvr.c b/tb/sw/src/halfLvdsMacSvr.c
index 7837933..00db5a0 100644
--- a/tb/sw/src/halfLvdsMacSvr.c
+++ b/tb/sw/src/halfLvdsMacSvr.c
@@ -69,7 +69,7 @@ uint32_t HLM_poll(uint32_t mode)
 			{
 				is_tx_crc  = 1;
 				is_rx_crc  = 1;
-				tx_pkt_len = 256 + 4;
+				tx_pkt_len = 320 + 4;
 
 				tx_data_ptr[0] = ((tx_pkt_len - 4) << 20) | 2;