diff --git a/src/lib/byteutils.cpp b/src/lib/byteutils.cpp
index e31d8e4..610ae26 100644
--- a/src/lib/byteutils.cpp
+++ b/src/lib/byteutils.cpp
@@ -23,18 +23,6 @@ void byteutils::push_long(std::vector<uint8_t>& stack, const int64_t& value) {
     stack.push_back(BYTE_7(value));
 }
 
-void byteutils::push_ushort(std::vector<uint8_t>& stack, const uint16_t& value) {
-    stack.push_back(BYTE_0(value));
-    stack.push_back(BYTE_1(value));
-}
-
-void byteutils::push_uint(std::vector<uint8_t>& stack, const uint32_t& value) {
-    stack.push_back(BYTE_0(value));
-    stack.push_back(BYTE_1(value));
-    stack.push_back(BYTE_2(value));
-    stack.push_back(BYTE_3(value));
-}
-
 void byteutils::push_ulong(std::vector<uint8_t>& stack, const uint64_t& value) {
     stack.push_back(BYTE_0(value));
     stack.push_back(BYTE_1(value));
@@ -46,52 +34,38 @@ void byteutils::push_ulong(std::vector<uint8_t>& stack, const uint64_t& value) {
     stack.push_back(BYTE_7(value));
 }
 
-namespace byteutils {
-int16_t read_short(const uint8_t* stack, const uint64_t& index) {
-    return ((int16_t) stack[index + 1] << 8) | stack[index];
-}
-
-int32_t read_int(const uint8_t* stack, const uint64_t& index) {
-    return ((int32_t) read_short(stack, index + 2) << 16) | read_short(stack, index);
-}
-
-int64_t read_long(const uint8_t* stack, const uint64_t& index) {
-    return ((int64_t) read_int(stack, index + 4) << 32) | read_int(stack, index);
-}
-
-uint16_t read_ushort(const uint8_t* stack, const uint64_t& index) {
-    return ((uint16_t) stack[index + 1] << 8) | stack[index];
-}
-
-uint32_t read_uint(const uint8_t* stack, const uint64_t& index) {
-    return ((uint32_t) read_ushort(stack, index + 2) << 16) | read_ushort(stack, index);
-}
-
-uint64_t read_ulong(const uint8_t* stack, const uint64_t& index) {
-    return ((uint64_t) read_uint(stack, index + 4) << 32) | read_uint(stack, index);
-}
-}
-
 int16_t byteutils::read_short(const std::vector<uint8_t>& stack, const uint64_t& index) {
-    return byteutils::read_short(stack.data(), index);
+    return ((int16_t) stack[index + 1] << 8) | stack[index + 0];
 }
 
 int32_t byteutils::read_int(const std::vector<uint8_t>& stack, const uint64_t& index) {
-    return byteutils::read_int(stack.data(), index);
+    return
+        ((int32_t) stack[index + 3] << 24) |
+        ((int32_t) stack[index + 2] << 16) |
+        ((int32_t) stack[index + 1] << 8) |
+        stack[index + 0];
 }
 
 int64_t byteutils::read_long(const std::vector<uint8_t>& stack, const uint64_t& index) {
-    return byteutils::read_long(stack.data(), index);
-}
-
-uint16_t read_ushort(const std::vector<uint8_t>& stack, const uint64_t& index) {
-    return byteutils::read_ushort(stack.data(), index);
-}
-
-uint32_t read_uint(const std::vector<uint8_t>& stack, const uint64_t& index) {
-    return byteutils::read_uint(stack.data(), index);
+    return
+        ((int64_t) stack[index + 7] << 56) |
+        ((int64_t) stack[index + 6] << 48) |
+        ((int64_t) stack[index + 5] << 40) |
+        ((int64_t) stack[index + 4] << 32) |
+        ((int64_t) stack[index + 3] << 24) |
+        ((int64_t) stack[index + 2] << 16) |
+        ((int64_t) stack[index + 1] << 8) |
+        stack[index + 0];
 }
 
 uint64_t byteutils::read_ulong(const std::vector<uint8_t>& stack, const uint64_t& index) {
-    return byteutils::read_ulong(stack.data(), index);
+    return
+        ((uint64_t) stack[index + 7] << 56) |
+        ((uint64_t) stack[index + 6] << 48) |
+        ((uint64_t) stack[index + 5] << 40) |
+        ((uint64_t) stack[index + 4] << 32) |
+        ((uint64_t) stack[index + 3] << 24) |
+        ((uint64_t) stack[index + 2] << 16) |
+        ((uint64_t) stack[index + 1] << 8) |
+        stack[index + 0];
 }
\ No newline at end of file
diff --git a/src/lib/byteutils.h b/src/lib/byteutils.h
index 8c7649e..dae9e24 100644
--- a/src/lib/byteutils.h
+++ b/src/lib/byteutils.h
@@ -22,17 +22,11 @@ namespace byteutils {
 void push_short(std::vector<uint8_t>& stack, const int16_t& value);
 void push_int(std::vector<uint8_t>& stack, const int32_t& value);
 void push_long(std::vector<uint8_t>& stack, const int64_t& value);
-
-void push_ushort(std::vector<uint8_t>& stack, const uint16_t& value);
-void push_uint(std::vector<uint8_t>& stack, const uint32_t& value);
 void push_ulong(std::vector<uint8_t>& stack, const uint64_t& value);
 
 int16_t read_short(const std::vector<uint8_t>& stack, const uint64_t& index);
 int32_t read_int(const std::vector<uint8_t>& stack, const uint64_t& index);
 int64_t read_long(const std::vector<uint8_t>& stack, const uint64_t& index);
-
-uint16_t read_ushort(const std::vector<uint8_t>& stack, const uint64_t& index);
-uint32_t read_uint(const std::vector<uint8_t>& stack, const uint64_t& index);
 uint64_t read_ulong(const std::vector<uint8_t>& stack, const uint64_t& index);
 }