diff --git a/lib/basic.cpp b/lib/basic.cpp
index f1dbd44e112bb2c155a85cfba6da11c5adedad6a..791213fb772e46898778c2c798cf1e66f26fcc27 100644
--- a/lib/basic.cpp
+++ b/lib/basic.cpp
@@ -152,41 +152,6 @@ EXPORT void sum(pFunCallArg_t pArgs, float* output)
         output[i] = res;
 }
 
-EXPORT void __sqrt(pFunCallArg_t pArgs, float* output)
-{
-    int allCalNum = pArgs->allCalNum;
-    float* arg0 = static_cast<float*>(pArgs->args[0]);
-
-    for (int i = 0;i < allCalNum;i++)
-        output[i] = sqrtf(arg0[i]);
-}
-
-EXPORT void to_signed(pFunCallArg_t pArgs, float* output)
-{
-    int allCalNum = pArgs->allCalNum;
-    float* arg0 = static_cast<float*>(pArgs->args[0]);
-    int bits = (int) *static_cast<float*>(pArgs->args[1]);
-
-    uint32_t mask = 1 << bits - 1;
-    uint32_t maxValue = 1 << bits;
-
-    for (int i = 0;i < allCalNum;i++)
-        output[i] = arg0[i] < mask ? arg0[i] : arg0[i] - maxValue;
-}
-
-EXPORT void to_unsigned(pFunCallArg_t pArgs, float* output)
-{
-    int allCalNum = pArgs->allCalNum;
-    float* arg0 = static_cast<float*>(pArgs->args[0]);
-    int bits = (int) *static_cast<float*>(pArgs->args[1]);
-    
-    uint32_t maxValue = 1 << bits;
-
-    for (int i = 0;i < allCalNum;i++)
-        output[i] = arg0[i] > 0 ? arg0[i] : arg0[i] + maxValue;
-}
-
-
 LibFunction_t funcs[] = {
     LIB_FUNCTION(__sin, 1, .name = "sin"),
     LIB_FUNCTION(__cos, 1, .name = "cos"),
@@ -200,9 +165,6 @@ LibFunction_t funcs[] = {
     // LIB_FUNCTION(angle, 1),
     LIB_FUNCTION(conv, 4),
     LIB_FUNCTION(sum, 1),
-    LIB_FUNCTION(__sqrt, 1, .name = "sqrt"),
-    LIB_FUNCTION(to_signed, 2),
-    LIB_FUNCTION(to_unsigned, 2),
     END_OF_LIB
 };
 
diff --git a/lib/io.cpp b/lib/io.cpp
index d92b05f6a0b92a7410e1c647488090b0a0f5ba95..c2d95088dd9bb380d6e96bde1c2ba91e86ec6a19 100644
--- a/lib/io.cpp
+++ b/lib/io.cpp
@@ -19,28 +19,15 @@ EXPORT void read_file(pFunCallArg_t pArgs, float* output)
     QFile file(arg0);
     if (file.open(QIODevice::ReadOnly | QIODevice::Text))
     {
-        const auto& lineList = file.readAll().split('\n');
-        auto pt = lineList.begin();
-        auto end = lineList.end();
-
-        file.close();
-
         for (size_t i = 0;i < arg1;i++)
-            pt++;
+            file.readLine();
 
-        for (int i = 0;i < allCalNum && pt != end;i++, pt++)
+        for (int i = 0;i < allCalNum;i++)
         {
-            const QString& line = pt->trimmed();//file.readLine(64).trimmed();
-
+            QString line = file.readLine(64);
             if (line.isEmpty())
                 break;
-
-            if (line.startsWith("0x"))
-                output[i] = line.toInt(nullptr, 16);
-            else if (line.startsWith("0b"))
-                output[i] = line.right(line.length() - 2).toInt(nullptr, 2);
-            else
-                output[i] = line.toFloat();
+            output[i] = line.toFloat();
         }
     }
 
diff --git a/util/log.h b/util/log.h
index bb6830f40c1ed381c99432f9dd22a63f745165ba..6bdadfa1a83078c07028cb18d40745f8277f058d 100644
--- a/util/log.h
+++ b/util/log.h
@@ -21,13 +21,10 @@
 #define UI_WARNING(fmt, ...) DEBUG_LEVEL("\r\n", ui, warning, "[%s:%d]: " fmt, __func__, __LINE__, ##__VA_ARGS__)
 #define UI_ERROR(fmt, ...) DEBUG_LEVEL("\r\n\r\n", ui, error, "[%s:%d][%s]: " fmt "\r\n", __FILE__, __LINE__, __func__, ##__VA_ARGS__)
 
-#define LIB_DEBUG_OUTPUT qDebug
-#define LIB_DEBUG_LEVEL(pre, mod, level, fmt, ...) LIB_DEBUG_OUTPUT(pre "[" #level "]" "[" #mod "]" fmt "\r\n", ##__VA_ARGS__)
-
-#define LIB_LOG(fmt, ...) LIB_DEBUG_LEVEL("", lib, log, ": " fmt, ##__VA_ARGS__)
-#define LIB_INFO(fmt, ...) LIB_DEBUG_LEVEL("", lib, info, "[%s]: " fmt, __func__, ##__VA_ARGS__)
-#define LIB_WARNING(fmt, ...) LIB_DEBUG_LEVEL("\r\n", lib, warning, "[%s:%d]: " fmt, __func__, __LINE__, ##__VA_ARGS__)
-#define LIB_ERROR(fmt, ...) LIB_DEBUG_LEVEL("\r\n\r\n", lib, error, "[%s:%d][%s]: " fmt "\r\n", __FILE__, __LINE__, __func__, ##__VA_ARGS__)
+#define LIB_LOG(fmt, ...) DEBUG_LEVEL("", lib, log, ": " fmt, ##__VA_ARGS__)
+#define LIB_INFO(fmt, ...) DEBUG_LEVEL("", lib, info, "[%s]: " fmt, __func__, ##__VA_ARGS__)
+#define LIB_WARNING(fmt, ...) DEBUG_LEVEL("\r\n", lib, warning, "[%s:%d]: " fmt, __func__, __LINE__, ##__VA_ARGS__)
+#define LIB_ERROR(fmt, ...) DEBUG_LEVEL("\r\n\r\n", lib, error, "[%s:%d][%s]: " fmt "\r\n", __FILE__, __LINE__, __func__, ##__VA_ARGS__)
 
 #ifndef __max
 #define __max(a,b) (((a) > (b)) ? (a) : (b))