diff --git a/.cproject b/.cproject
index ab7da03..4d76c43 100644
--- a/.cproject
+++ b/.cproject
@@ -102,7 +102,7 @@
 					<folderInfo id="cdt.managedbuild.config.gnu.exe.debug.119132886.1379881487." name="/" resourcePath="">
 						<toolChain id="cdt.managedbuild.toolchain.gnu.base.204557880" name="Linux GCC" superClass="cdt.managedbuild.toolchain.gnu.base">
 							<targetPlatform archList="all" binaryParser="org.eclipse.cdt.core.GNU_ELF" id="cdt.managedbuild.target.gnu.platform.base.1920367055" name="Debug Platform" osList="linux,hpux,aix,qnx" superClass="cdt.managedbuild.target.gnu.platform.base"/>
-							<builder autoBuildTarget="riscv.sc" buildPath="${workspace_loc:/dbt-riscv}/build" enableAutoBuild="true" id="cdt.managedbuild.target.gnu.builder.base.847091814" incrementalBuildTarget="riscv.sc" keepEnvironmentInBuildfile="false" managedBuildOn="false" name="Gnu Make Builder" parallelBuildOn="false" superClass="cdt.managedbuild.target.gnu.builder.base"/>
+							<builder autoBuildTarget="riscv.sc" buildPath="${workspace_loc:/dbt-riscv}/build" enableAutoBuild="true" id="cdt.managedbuild.target.gnu.builder.base.847091814" incrementalBuildTarget="riscv.sc" keepEnvironmentInBuildfile="false" managedBuildOn="false" name="Gnu Make Builder" parallelBuildOn="true" parallelizationNumber="optimal" superClass="cdt.managedbuild.target.gnu.builder.base"/>
 							<tool id="cdt.managedbuild.tool.gnu.archiver.base.607972756" name="GCC Archiver" superClass="cdt.managedbuild.tool.gnu.archiver.base"/>
 							<tool id="cdt.managedbuild.tool.gnu.cpp.compiler.base.1040448746" name="GCC C++ Compiler" superClass="cdt.managedbuild.tool.gnu.cpp.compiler.base">
 								<option id="gnu.cpp.compiler.option.optimization.level.1204595436" name="Optimization Level" superClass="gnu.cpp.compiler.option.optimization.level" useByScannerDiscovery="false" value="gnu.cpp.compiler.optimization.level.none" valueType="enumerated"/>
diff --git a/cmake/FindTcmalloc.cmake b/cmake/FindTcmalloc.cmake
index 24c2600..825ee8d 100644
--- a/cmake/FindTcmalloc.cmake
+++ b/cmake/FindTcmalloc.cmake
@@ -7,12 +7,12 @@
 if (USE_TCMALLOC)
   set(Tcmalloc_NAMES tcmalloc)
 else ()
-  set(Tcmalloc_NAMES tcmalloc_minimal tcmalloc)
+  set(Tcmalloc_NAMES tcmalloc_minimal tcmalloc tcmalloc_minimal4 libtcmalloc_minimal.so.4)
 endif ()
 
 find_library(Tcmalloc_LIBRARY NO_DEFAULT_PATH
   NAMES ${Tcmalloc_NAMES}
-  PATHS ${HT_DEPENDENCY_LIB_DIR} /lib /usr/lib /usr/local/lib /opt/local/lib
+  PATHS ${HT_DEPENDENCY_LIB_DIR} /lib /usr/lib /usr/lib/x86_64-linux-gnu /usr/local/lib /opt/local/lib
 )
 
 if (Tcmalloc_LIBRARY)
diff --git a/riscv.sc/src/sysc/uart.cpp b/riscv.sc/src/sysc/uart.cpp
index 867abce..c0f77c3 100644
--- a/riscv.sc/src/sysc/uart.cpp
+++ b/riscv.sc/src/sysc/uart.cpp
@@ -55,11 +55,10 @@ void uart::reset_cb() {
 }
 
 void uart::transmit_data() {
+    if(regs->r_txdata.data != '\r') queue.push_back(regs->r_txdata.data);
     if (queue.size() >> 0 && (regs->r_txdata.data == '\n' || regs->r_txdata.data == 0)) {
         LOG(INFO) << this->name() << " transmit: '" << std::string(queue.begin(), queue.end()) << "'";
         queue.clear();
-    } else {
-        queue.push_back(regs->r_txdata.data);
     }
 }
 
diff --git a/sc-components b/sc-components
index db46dcd..1f2e587 160000
--- a/sc-components
+++ b/sc-components
@@ -1 +1 @@
-Subproject commit db46dcd39581618564bd3e589c95c36c277679ed
+Subproject commit 1f2e587562b1cd3742606115145700ac39ec4f9f