diff --git a/.github/workflows/real-time-cpp-benchmarks.yml b/.github/workflows/real-time-cpp-benchmarks.yml
index 91cddd380..1440bbfad 100644
--- a/.github/workflows/real-time-cpp-benchmarks.yml
+++ b/.github/workflows/real-time-cpp-benchmarks.yml
@@ -154,11 +154,11 @@ jobs:
           echo 'Add rl78-unknown-elf-g++ path'
           echo
           PATH="${{ runner.workspace }}/gcc-15.1.0-rl78-unknown-elf/bin:$PATH"
-          echo 'Query avr-g++ version'
+          echo 'Query rl78-unknown-elf-g++ version'
           echo
           rl78-unknown-elf-g++ -v
           echo
-          echo 'Build avr benchmarks'
+          echo 'Build rl78-unknown-elf-g++ benchmarks'
           echo
           ./target/build/test_app_benchmarks_rl78.sh ${{ matrix.standard }}
         working-directory: ./ref_app/
@@ -198,6 +198,37 @@ jobs:
       - name: benchmark_builds-stm32f446
         run: ./target/build/test_app_benchmarks_stm32f446.sh ${{ matrix.standard }}
         working-directory: ./ref_app/
+  benchmark_builds-v850:
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        shell: bash
+    strategy:
+      fail-fast: false
+      matrix:
+        standard: [ c++23 ]
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: '0'
+      - name: update-tools
+        run: |
+          wget --no-check-certificate https://github.com/ckormanyos/gcc-v850-unknown-elf/releases/download/v14.2.0/gcc-14.2.0-v850-unknown-elf.tar.gz
+          tar -xzf gcc-14.2.0-v850-unknown-elf.tar.gz -C ${{ runner.workspace }}
+      - name: benchmark_builds-v850
+        run: |
+          echo
+          echo 'Add v850-unknown-elf-g++ path'
+          echo
+          PATH="${{ runner.workspace }}/gcc-14.2.0-v850-unknown-elf/bin:$PATH"
+          echo 'Query v850-unknown-elf-g++ version'
+          echo
+          v850-unknown-elf-g++ -v
+          echo
+          echo 'Build v850-unknown-elf-g++ benchmarks'
+          echo
+          ./target/build/test_app_benchmarks_v850.sh ${{ matrix.standard }}
+        working-directory: ./ref_app/
   benchmark_single-stm32f446:
     runs-on: ubuntu-latest
     defaults:
diff --git a/ref_app/src/app/benchmark/app_benchmark.h b/ref_app/src/app/benchmark/app_benchmark.h
index 22afe39fb..6e5118049 100644
--- a/ref_app/src/app/benchmark/app_benchmark.h
+++ b/ref_app/src/app/benchmark/app_benchmark.h
@@ -8,6 +8,16 @@
 #ifndef APP_BENCHMARK_2018_10_02_H
   #define APP_BENCHMARK_2018_10_02_H
 
+  #if defined(ATTRIBUTE)
+  #undef ATTRIBUTE
+  #endif
+
+  #if defined(_MSC_VER)
+  #define ATTRIBUTE(a)
+  #else
+  #define ATTRIBUTE(a) __attribute__((a))
+  #endif
+
   #define APP_BENCHMARK_TYPE_NONE                                0
   #define APP_BENCHMARK_TYPE_COMPLEX                             1
   #define APP_BENCHMARK_TYPE_CRC                                 2
diff --git a/ref_app/src/app/benchmark/app_benchmark_boost_crypt_hasher.cpp b/ref_app/src/app/benchmark/app_benchmark_boost_crypt_hasher.cpp
index f423710b4..ab0c8ccaf 100644
--- a/ref_app/src/app/benchmark/app_benchmark_boost_crypt_hasher.cpp
+++ b/ref_app/src/app/benchmark/app_benchmark_boost_crypt_hasher.cpp
@@ -98,7 +98,7 @@ extern "C"
   }
 }
 
-auto main() -> int;
+ATTRIBUTE(used) auto main() -> int;
 
 auto main() -> int
 {
diff --git a/ref_app/src/app/benchmark/app_benchmark_boost_math_cbrt_tgamma.cpp b/ref_app/src/app/benchmark/app_benchmark_boost_math_cbrt_tgamma.cpp
index e48e26845..c78a102cc 100644
--- a/ref_app/src/app/benchmark/app_benchmark_boost_math_cbrt_tgamma.cpp
+++ b/ref_app/src/app/benchmark/app_benchmark_boost_math_cbrt_tgamma.cpp
@@ -89,7 +89,7 @@ auto app::benchmark::run_boost_math_cbrt_tgamma() -> bool
 }
 
 #if defined(APP_BENCHMARK_STANDALONE_MAIN)
-auto main() -> int;
+ATTRIBUTE(used) auto main() -> int;
 
 auto main() -> int
 {
diff --git a/ref_app/src/app/benchmark/app_benchmark_boost_math_cyl_bessel_j.cpp b/ref_app/src/app/benchmark/app_benchmark_boost_math_cyl_bessel_j.cpp
index f8b6de828..cbefc450d 100644
--- a/ref_app/src/app/benchmark/app_benchmark_boost_math_cyl_bessel_j.cpp
+++ b/ref_app/src/app/benchmark/app_benchmark_boost_math_cyl_bessel_j.cpp
@@ -129,7 +129,7 @@ auto app::benchmark::run_boost_math_cbrt_cyl_bessel_j() -> bool
 }
 
 #if defined(APP_BENCHMARK_STANDALONE_MAIN)
-auto main() -> int;
+ATTRIBUTE(used) auto main() -> int;
 
 auto main() -> int
 {
diff --git a/ref_app/src/app/benchmark/app_benchmark_boost_multiprecision_cbrt.cpp b/ref_app/src/app/benchmark/app_benchmark_boost_multiprecision_cbrt.cpp
index 8f5e6ecb6..df559bc22 100644
--- a/ref_app/src/app/benchmark/app_benchmark_boost_multiprecision_cbrt.cpp
+++ b/ref_app/src/app/benchmark/app_benchmark_boost_multiprecision_cbrt.cpp
@@ -90,7 +90,7 @@ auto app::benchmark::run_boost_multiprecision_cbrt() -> bool
 }
 
 #if defined(APP_BENCHMARK_STANDALONE_MAIN)
-auto main() -> int;
+ATTRIBUTE(used) auto main() -> int;
 
 auto main() -> int
 {
diff --git a/ref_app/src/app/benchmark/app_benchmark_cnl_scaled_integer.cpp b/ref_app/src/app/benchmark/app_benchmark_cnl_scaled_integer.cpp
index 46f444943..98a993c4e 100644
--- a/ref_app/src/app/benchmark/app_benchmark_cnl_scaled_integer.cpp
+++ b/ref_app/src/app/benchmark/app_benchmark_cnl_scaled_integer.cpp
@@ -135,7 +135,7 @@ extern "C"
   }
 }
 
-auto main() -> int;
+ATTRIBUTE(used) auto main() -> int;
 
 auto main() -> int
 {
diff --git a/ref_app/src/app/benchmark/app_benchmark_complex.cpp b/ref_app/src/app/benchmark/app_benchmark_complex.cpp
index 0a1c96431..1b3220379 100644
--- a/ref_app/src/app/benchmark/app_benchmark_complex.cpp
+++ b/ref_app/src/app/benchmark/app_benchmark_complex.cpp
@@ -38,7 +38,7 @@ auto app::benchmark::run_complex() -> bool
 }
 
 #if defined(APP_BENCHMARK_STANDALONE_MAIN)
-auto main() -> int;
+ATTRIBUTE(used) auto main() -> int;
 
 auto main() -> int
 {
diff --git a/ref_app/src/app/benchmark/app_benchmark_crc.cpp b/ref_app/src/app/benchmark/app_benchmark_crc.cpp
index a8b3f1973..7cb92a8db 100644
--- a/ref_app/src/app/benchmark/app_benchmark_crc.cpp
+++ b/ref_app/src/app/benchmark/app_benchmark_crc.cpp
@@ -67,7 +67,7 @@ extern "C"
   }
 }
 
-auto main() -> int;
+ATTRIBUTE(used) auto main() -> int;
 
 auto main() -> int
 {
diff --git a/ref_app/src/app/benchmark/app_benchmark_detail.h b/ref_app/src/app/benchmark/app_benchmark_detail.h
index 0e98f00d6..e2eea1768 100644
--- a/ref_app/src/app/benchmark/app_benchmark_detail.h
+++ b/ref_app/src/app/benchmark/app_benchmark_detail.h
@@ -49,7 +49,7 @@
     {
       const numeric_type ratio { a / b };
 
-      const numeric_type closeness { fabs(numeric_type { 1 - ratio }) };
+      const numeric_type closeness { fabs(static_cast<numeric_type>(1 - ratio )) };
 
       result_is_ok = (closeness < tol);
     }
diff --git a/ref_app/src/app/benchmark/app_benchmark_ecc_generic_ecc.cpp b/ref_app/src/app/benchmark/app_benchmark_ecc_generic_ecc.cpp
index 2535efd8b..28a39ea13 100644
--- a/ref_app/src/app/benchmark/app_benchmark_ecc_generic_ecc.cpp
+++ b/ref_app/src/app/benchmark/app_benchmark_ecc_generic_ecc.cpp
@@ -212,7 +212,7 @@ auto my_hardware_random_device_generator() -> unsigned int
 }
 
 #if defined(APP_BENCHMARK_STANDALONE_MAIN)
-auto main() -> int;
+ATTRIBUTE(used) auto main() -> int;
 
 auto main() -> int
 {
diff --git a/ref_app/src/app/benchmark/app_benchmark_fast_math.cpp b/ref_app/src/app/benchmark/app_benchmark_fast_math.cpp
index c92780701..a47951e43 100644
--- a/ref_app/src/app/benchmark/app_benchmark_fast_math.cpp
+++ b/ref_app/src/app/benchmark/app_benchmark_fast_math.cpp
@@ -47,7 +47,7 @@ auto app::benchmark::run_fast_math() -> bool
 }
 
 #if defined(APP_BENCHMARK_STANDALONE_MAIN)
-auto main() -> int;
+ATTRIBUTE(used) auto main() -> int;
 
 auto main() -> int
 {
diff --git a/ref_app/src/app/benchmark/app_benchmark_filter.cpp b/ref_app/src/app/benchmark/app_benchmark_filter.cpp
index 41601844d..51843ea6b 100644
--- a/ref_app/src/app/benchmark/app_benchmark_filter.cpp
+++ b/ref_app/src/app/benchmark/app_benchmark_filter.cpp
@@ -52,7 +52,7 @@ auto app::benchmark::run_filter() -> bool
 }
 
 #if defined(APP_BENCHMARK_STANDALONE_MAIN)
-auto main() -> int;
+ATTRIBUTE(used) auto main() -> int;
 
 auto main() -> int
 {
diff --git a/ref_app/src/app/benchmark/app_benchmark_fixed_point.cpp b/ref_app/src/app/benchmark/app_benchmark_fixed_point.cpp
index a25c0ce41..c4223850b 100644
--- a/ref_app/src/app/benchmark/app_benchmark_fixed_point.cpp
+++ b/ref_app/src/app/benchmark/app_benchmark_fixed_point.cpp
@@ -50,7 +50,7 @@ auto app::benchmark::run_fixed_point() -> bool
 }
 
 #if defined(APP_BENCHMARK_STANDALONE_MAIN)
-auto main() -> int;
+ATTRIBUTE(used) auto main() -> int;
 
 auto main() -> int
 {
diff --git a/ref_app/src/app/benchmark/app_benchmark_float.cpp b/ref_app/src/app/benchmark/app_benchmark_float.cpp
index 97fb43261..ade1c2b10 100644
--- a/ref_app/src/app/benchmark/app_benchmark_float.cpp
+++ b/ref_app/src/app/benchmark/app_benchmark_float.cpp
@@ -118,7 +118,7 @@ bool app::benchmark::run_float()
 }
 
 #if defined(APP_BENCHMARK_STANDALONE_MAIN)
-auto main() -> int;
+ATTRIBUTE(used) auto main() -> int;
 
 auto main() -> int
 {
diff --git a/ref_app/src/app/benchmark/app_benchmark_hash.cpp b/ref_app/src/app/benchmark/app_benchmark_hash.cpp
index ba1ab4183..f59c31ddb 100644
--- a/ref_app/src/app/benchmark/app_benchmark_hash.cpp
+++ b/ref_app/src/app/benchmark/app_benchmark_hash.cpp
@@ -54,7 +54,7 @@ auto app::benchmark::run_hash() -> bool
 }
 
 #if defined(APP_BENCHMARK_STANDALONE_MAIN)
-auto main() -> int;
+ATTRIBUTE(used) auto main() -> int;
 
 auto main() -> int
 {
diff --git a/ref_app/src/app/benchmark/app_benchmark_hash_sha256.cpp b/ref_app/src/app/benchmark/app_benchmark_hash_sha256.cpp
index b573b0028..d6c87fa3b 100644
--- a/ref_app/src/app/benchmark/app_benchmark_hash_sha256.cpp
+++ b/ref_app/src/app/benchmark/app_benchmark_hash_sha256.cpp
@@ -55,7 +55,7 @@ auto app::benchmark::run_hash_sha256() -> bool
 }
 
 #if defined(APP_BENCHMARK_STANDALONE_MAIN)
-auto main() -> int;
+ATTRIBUTE(used) auto main() -> int;
 
 auto main() -> int
 {
diff --git a/ref_app/src/app/benchmark/app_benchmark_non_std_decimal.cpp b/ref_app/src/app/benchmark/app_benchmark_non_std_decimal.cpp
index a210485d2..c0f50e206 100644
--- a/ref_app/src/app/benchmark/app_benchmark_non_std_decimal.cpp
+++ b/ref_app/src/app/benchmark/app_benchmark_non_std_decimal.cpp
@@ -261,7 +261,7 @@ arithmetic_float_type xarg = static_cast<arithmetic_float_type>(1234) / 1000;
 arithmetic_float_type ctrl = static_cast<arithmetic_float_type>(UINT64_C(343494186080075997)) / UINT64_C(100000000000000000);
 
 #if defined(APP_BENCHMARK_STANDALONE_MAIN)
-auto main() -> int;
+ATTRIBUTE(used) auto main() -> int;
 
 auto main() -> int
 {
diff --git a/ref_app/src/app/benchmark/app_benchmark_none.cpp b/ref_app/src/app/benchmark/app_benchmark_none.cpp
index 9befed277..3747cd68a 100644
--- a/ref_app/src/app/benchmark/app_benchmark_none.cpp
+++ b/ref_app/src/app/benchmark/app_benchmark_none.cpp
@@ -17,7 +17,7 @@ auto app::benchmark::run_none() -> bool
 }
 
 #if defined(APP_BENCHMARK_STANDALONE_MAIN)
-auto main() -> int;
+ATTRIBUTE(used) auto main() -> int;
 
 auto main() -> int
 {
diff --git a/ref_app/src/app/benchmark/app_benchmark_pi_agm.cpp b/ref_app/src/app/benchmark/app_benchmark_pi_agm.cpp
index 4db744da1..78d41ddae 100644
--- a/ref_app/src/app/benchmark/app_benchmark_pi_agm.cpp
+++ b/ref_app/src/app/benchmark/app_benchmark_pi_agm.cpp
@@ -137,7 +137,7 @@ auto app::benchmark::run_pi_agm() -> bool
 }
 
 #if defined(APP_BENCHMARK_STANDALONE_MAIN)
-auto main() -> int;
+ATTRIBUTE(used) auto main() -> int;
 
 auto main() -> int
 {
diff --git a/ref_app/src/app/benchmark/app_benchmark_pi_spigot.cpp b/ref_app/src/app/benchmark/app_benchmark_pi_spigot.cpp
index ac1b10588..0abc3e797 100644
--- a/ref_app/src/app/benchmark/app_benchmark_pi_spigot.cpp
+++ b/ref_app/src/app/benchmark/app_benchmark_pi_spigot.cpp
@@ -76,7 +76,7 @@ auto app::benchmark::run_pi_spigot() -> bool
 }
 
 #if defined(APP_BENCHMARK_STANDALONE_MAIN)
-auto main() -> int;
+ATTRIBUTE(used) auto main() -> int;
 
 auto main() -> int
 {
diff --git a/ref_app/src/app/benchmark/app_benchmark_pi_spigot_single.cpp b/ref_app/src/app/benchmark/app_benchmark_pi_spigot_single.cpp
index 85ae46b2d..812baadff 100644
--- a/ref_app/src/app/benchmark/app_benchmark_pi_spigot_single.cpp
+++ b/ref_app/src/app/benchmark/app_benchmark_pi_spigot_single.cpp
@@ -67,7 +67,7 @@ auto app::benchmark::run_pi_spigot_single() -> bool
 }
 
 #if defined(APP_BENCHMARK_STANDALONE_MAIN)
-auto main() -> int;
+ATTRIBUTE(used) auto main() -> int;
 
 auto main() -> int
 {
diff --git a/ref_app/src/app/benchmark/app_benchmark_soft_double_h2f1.cpp b/ref_app/src/app/benchmark/app_benchmark_soft_double_h2f1.cpp
index 693724736..32734d8b3 100644
--- a/ref_app/src/app/benchmark/app_benchmark_soft_double_h2f1.cpp
+++ b/ref_app/src/app/benchmark/app_benchmark_soft_double_h2f1.cpp
@@ -210,7 +210,7 @@ auto app::benchmark::run_soft_double_h2f1() -> bool
 }
 
 #if defined(APP_BENCHMARK_STANDALONE_MAIN)
-auto main() -> int;
+ATTRIBUTE(used) auto main() -> int;
 
 auto main() -> int
 {
diff --git a/ref_app/src/app/benchmark/app_benchmark_trapezoid_integral.cpp b/ref_app/src/app/benchmark/app_benchmark_trapezoid_integral.cpp
index 028b704cd..659a6b285 100644
--- a/ref_app/src/app/benchmark/app_benchmark_trapezoid_integral.cpp
+++ b/ref_app/src/app/benchmark/app_benchmark_trapezoid_integral.cpp
@@ -123,7 +123,7 @@ auto app::benchmark::run_trapezoid_integral() -> bool
 }
 
 #if defined(APP_BENCHMARK_STANDALONE_MAIN)
-auto main() -> int;
+ATTRIBUTE(used) auto main() -> int;
 
 auto main() -> int
 {
diff --git a/ref_app/src/app/benchmark/app_benchmark_wide_decimal.cpp b/ref_app/src/app/benchmark/app_benchmark_wide_decimal.cpp
index 9b31a5a44..879632bef 100644
--- a/ref_app/src/app/benchmark/app_benchmark_wide_decimal.cpp
+++ b/ref_app/src/app/benchmark/app_benchmark_wide_decimal.cpp
@@ -68,7 +68,7 @@ auto app::benchmark::run_wide_decimal() -> bool
 }
 
 #if defined(APP_BENCHMARK_STANDALONE_MAIN)
-auto main() -> int;
+ATTRIBUTE(used) auto main() -> int;
 
 auto main() -> int
 {
diff --git a/ref_app/src/app/benchmark/app_benchmark_wide_integer.cpp b/ref_app/src/app/benchmark/app_benchmark_wide_integer.cpp
index 4d0cd446f..63975e11b 100644
--- a/ref_app/src/app/benchmark/app_benchmark_wide_integer.cpp
+++ b/ref_app/src/app/benchmark/app_benchmark_wide_integer.cpp
@@ -146,7 +146,7 @@ auto app::benchmark::run_wide_integer() -> bool
 }
 
 #if defined(APP_BENCHMARK_STANDALONE_MAIN)
-auto main() -> int;
+ATTRIBUTE(used) auto main() -> int;
 
 auto main() -> int
 {
diff --git a/ref_app/src/mcal/host/mcal_irq.h b/ref_app/src/mcal/host/mcal_irq.h
index 5764d543b..0eee5f010 100644
--- a/ref_app/src/mcal/host/mcal_irq.h
+++ b/ref_app/src/mcal/host/mcal_irq.h
@@ -1,5 +1,5 @@
 ///////////////////////////////////////////////////////////////////////////////
-//  Copyright Christopher Kormanyos 2007 - 2023.
+//  Copyright Christopher Kormanyos 2007 - 2025.
 //  Distributed under the Boost Software License,
 //  Version 1.0. (See accompanying file LICENSE_1_0.txt
 //  or copy at http://www.boost.org/LICENSE_1_0.txt)
@@ -16,8 +16,8 @@
 
       auto init(const config_type*) -> void;
 
-      inline auto enable_all () -> void { }
-      inline auto disable_all() -> void { }
+      inline auto enable_all () noexcept -> void { }
+      inline auto disable_all() noexcept -> void { }
     } // namespace irq
   } // namespace mcal
 
diff --git a/ref_app/target.vcxproj b/ref_app/target.vcxproj
index de30ae019..785a2771d 100644
--- a/ref_app/target.vcxproj
+++ b/ref_app/target.vcxproj
@@ -925,6 +925,7 @@
     <None Include="target\build\test_app_benchmarks_riscv.sh" />
     <None Include="target\build\test_app_benchmarks_rl78.sh" />
     <None Include="target\build\test_app_benchmarks_stm32f446.sh" />
+    <None Include="target\build\test_app_benchmarks_v850.sh" />
     <None Include="target\micros\am335x\make\am335x.ld" />
     <None Include="target\micros\am335x\make\am335x_files.gmk" />
     <None Include="target\micros\am335x\make\am335x_flags.gmk" />
diff --git a/ref_app/target.vcxproj.filters b/ref_app/target.vcxproj.filters
index 5cb5be092..1ed3d87a6 100644
--- a/ref_app/target.vcxproj.filters
+++ b/ref_app/target.vcxproj.filters
@@ -687,6 +687,9 @@
     <None Include="target\build\test_app_benchmarks_rl78.sh">
       <Filter>build</Filter>
     </None>
+    <None Include="target\build\test_app_benchmarks_v850.sh">
+      <Filter>build</Filter>
+    </None>
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="Target\Micros\AVR\Startup\int_vect.cpp">
diff --git a/ref_app/target/build/test_app_benchmarks_v850.sh b/ref_app/target/build/test_app_benchmarks_v850.sh
new file mode 100755
index 000000000..dcb8effa9
--- /dev/null
+++ b/ref_app/target/build/test_app_benchmarks_v850.sh
@@ -0,0 +1,118 @@
+#!/usr/bin/env bash
+#
+#  Copyright Christopher Kormanyos 2020 - 2025.
+#  Distributed under the Boost Software License,
+#  Version 1.0. (See accompanying file LICENSE_1_0.txt
+#  or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+
+if [[ "$1" != "" ]]; then
+    STD="$1"
+else
+    STD=c++14
+fi
+
+GCC=v850-unknown-elf-g++
+
+wflags="-Wextra -Wpedantic -Wmain -Wundef -Wconversion -Wsign-conversion -Wunused-parameter -Wuninitialized -Wmissing-declarations -Wshadow -Wunreachable-code -Wswitch-default -Wswitch-enum -Wcast-align -Wmissing-include-dirs -Winit-self -Wfloat-equal -Wdouble-promotion"
+
+mkdir -p bin
+
+rm -f ./bin/*.*
+
+echo run benchmarks with $GCC and language standard $STD
+echo
+
+$GCC -std=$STD -Werror -Wall $wflags -Os -g -gdwarf-2 -fno-exceptions -ffunction-sections -fdata-sections -x c++ -fno-rtti -fno-use-cxa-atexit -fno-exceptions -fno-nonansi-builtins -fno-threadsafe-statics -fno-enforce-eh-specs -ftemplate-depth=32 -Wzero-as-null-pointer-constant -mv850e1 -mlong-calls -mgcc-abi -mtda=0 -mzda=0 -msda=0 -fno-inline-functions -ffreestanding -I./src/util/STL -I./src/mcal/v850es_fx2 -I./src -DAPP_BENCHMARK_TYPE=APP_BENCHMARK_TYPE_COMPLEX            -DAPP_BENCHMARK_STANDALONE_MAIN ./src/app/benchmark/app_benchmark_complex.cpp            ./src/mcal/mcal_gcc_cxx_completion.cpp -nostdlib  -nostartfiles -Wl,--gc-sections -Wl,-Map,./bin/app_benchmark_complex.map            -T ./target/micros/v850es_fx2/make/v850es_fx2.ld -o ./bin/app_benchmark_complex.elf
+$GCC -std=$STD -Werror -Wall $wflags -Os -g -gdwarf-2 -fno-exceptions -ffunction-sections -fdata-sections -x c++ -fno-rtti -fno-use-cxa-atexit -fno-exceptions -fno-nonansi-builtins -fno-threadsafe-statics -fno-enforce-eh-specs -ftemplate-depth=32 -Wzero-as-null-pointer-constant -mv850e1 -mlong-calls -mgcc-abi -mtda=0 -mzda=0 -msda=0 -fno-inline-functions -ffreestanding -I./src/util/STL -I./src/mcal/v850es_fx2 -I./src -DAPP_BENCHMARK_TYPE=APP_BENCHMARK_TYPE_CRC                -DAPP_BENCHMARK_STANDALONE_MAIN ./src/app/benchmark/app_benchmark_crc.cpp                ./src/mcal/mcal_gcc_cxx_completion.cpp -nostdlib  -nostartfiles -Wl,--gc-sections -Wl,-Map,./bin/app_benchmark_crc.map                -T ./target/micros/v850es_fx2/make/v850es_fx2.ld -o ./bin/app_benchmark_crc.elf
+$GCC -std=$STD -Werror -Wall $wflags -Os -g -gdwarf-2 -fno-exceptions -ffunction-sections -fdata-sections -x c++ -fno-rtti -fno-use-cxa-atexit -fno-exceptions -fno-nonansi-builtins -fno-threadsafe-statics -fno-enforce-eh-specs -ftemplate-depth=32 -Wzero-as-null-pointer-constant -mv850e1 -mlong-calls -mgcc-abi -mtda=0 -mzda=0 -msda=0 -fno-inline-functions -ffreestanding -I./src/util/STL -I./src/mcal/v850es_fx2 -I./src -DAPP_BENCHMARK_TYPE=APP_BENCHMARK_TYPE_FAST_MATH          -DAPP_BENCHMARK_STANDALONE_MAIN ./src/app/benchmark/app_benchmark_fast_math.cpp          ./src/mcal/mcal_gcc_cxx_completion.cpp -nostdlib  -nostartfiles -Wl,--gc-sections -Wl,-Map,./bin/app_benchmark_fast_math.map          -T ./target/micros/v850es_fx2/make/v850es_fx2.ld -o ./bin/app_benchmark_fast_math.elf
+$GCC -std=$STD -Werror -Wall $wflags -Os -g -gdwarf-2 -fno-exceptions -ffunction-sections -fdata-sections -x c++ -fno-rtti -fno-use-cxa-atexit -fno-exceptions -fno-nonansi-builtins -fno-threadsafe-statics -fno-enforce-eh-specs -ftemplate-depth=32 -Wzero-as-null-pointer-constant -mv850e1 -mlong-calls -mgcc-abi -mtda=0 -mzda=0 -msda=0 -fno-inline-functions -ffreestanding -I./src/util/STL -I./src/mcal/v850es_fx2 -I./src -DAPP_BENCHMARK_TYPE=APP_BENCHMARK_TYPE_FILTER             -DAPP_BENCHMARK_STANDALONE_MAIN ./src/app/benchmark/app_benchmark_filter.cpp             ./src/mcal/mcal_gcc_cxx_completion.cpp -nostdlib  -nostartfiles -Wl,--gc-sections -Wl,-Map,./bin/app_benchmark_filter.map             -T ./target/micros/v850es_fx2/make/v850es_fx2.ld -o ./bin/app_benchmark_filter.elf
+$GCC -std=$STD -Werror -Wall $wflags -Os -g -gdwarf-2 -fno-exceptions -ffunction-sections -fdata-sections -x c++ -fno-rtti -fno-use-cxa-atexit -fno-exceptions -fno-nonansi-builtins -fno-threadsafe-statics -fno-enforce-eh-specs -ftemplate-depth=32 -Wzero-as-null-pointer-constant -mv850e1 -mlong-calls -mgcc-abi -mtda=0 -mzda=0 -msda=0 -fno-inline-functions -ffreestanding -I./src/util/STL -I./src/mcal/v850es_fx2 -I./src -DAPP_BENCHMARK_TYPE=APP_BENCHMARK_TYPE_FIXED_POINT        -DAPP_BENCHMARK_STANDALONE_MAIN ./src/app/benchmark/app_benchmark_fixed_point.cpp        ./src/mcal/mcal_gcc_cxx_completion.cpp -nostdlib  -nostartfiles -Wl,--gc-sections -Wl,-Map,./bin/app_benchmark_fixed_point.map        -T ./target/micros/v850es_fx2/make/v850es_fx2.ld -o ./bin/app_benchmark_fixed_point.elf
+$GCC -std=$STD -Werror -Wall $wflags -Os -g -gdwarf-2 -fno-exceptions -ffunction-sections -fdata-sections -x c++ -fno-rtti -fno-use-cxa-atexit -fno-exceptions -fno-nonansi-builtins -fno-threadsafe-statics -fno-enforce-eh-specs -ftemplate-depth=32 -Wzero-as-null-pointer-constant -mv850e1 -mlong-calls -mgcc-abi -mtda=0 -mzda=0 -msda=0 -fno-inline-functions -ffreestanding -I./src/util/STL -I./src/mcal/v850es_fx2 -I./src -DAPP_BENCHMARK_TYPE=APP_BENCHMARK_TYPE_FLOAT              -DAPP_BENCHMARK_STANDALONE_MAIN ./src/app/benchmark/app_benchmark_float.cpp              ./src/mcal/mcal_gcc_cxx_completion.cpp -nostdlib  -nostartfiles -Wl,--gc-sections -Wl,-Map,./bin/app_benchmark_float.map              -T ./target/micros/v850es_fx2/make/v850es_fx2.ld -o ./bin/app_benchmark_float.elf
+$GCC -std=$STD -Werror -Wall $wflags -Os -g -gdwarf-2 -fno-exceptions -ffunction-sections -fdata-sections -x c++ -fno-rtti -fno-use-cxa-atexit -fno-exceptions -fno-nonansi-builtins -fno-threadsafe-statics -fno-enforce-eh-specs -ftemplate-depth=32 -Wzero-as-null-pointer-constant -mv850e1 -mlong-calls -mgcc-abi -mtda=0 -mzda=0 -msda=0 -fno-inline-functions -ffreestanding -I./src/util/STL -I./src/mcal/v850es_fx2 -I./src -DAPP_BENCHMARK_TYPE=APP_BENCHMARK_TYPE_HASH               -DAPP_BENCHMARK_STANDALONE_MAIN ./src/app/benchmark/app_benchmark_hash.cpp               ./src/mcal/mcal_gcc_cxx_completion.cpp -nostdlib  -nostartfiles -Wl,--gc-sections -Wl,-Map,./bin/app_benchmark_hash.map               -T ./target/micros/v850es_fx2/make/v850es_fx2.ld -o ./bin/app_benchmark_hash.elf
+$GCC -std=$STD -Werror -Wall $wflags -Os -g -gdwarf-2 -fno-exceptions -ffunction-sections -fdata-sections -x c++ -fno-rtti -fno-use-cxa-atexit -fno-exceptions -fno-nonansi-builtins -fno-threadsafe-statics -fno-enforce-eh-specs -ftemplate-depth=32 -Wzero-as-null-pointer-constant -mv850e1 -mlong-calls -mgcc-abi -mtda=0 -mzda=0 -msda=0 -fno-inline-functions -ffreestanding -I./src/util/STL -I./src/mcal/v850es_fx2 -I./src -DAPP_BENCHMARK_TYPE=APP_BENCHMARK_TYPE_NONE               -DAPP_BENCHMARK_STANDALONE_MAIN ./src/app/benchmark/app_benchmark_none.cpp               ./src/mcal/mcal_gcc_cxx_completion.cpp -nostdlib  -nostartfiles -Wl,--gc-sections -Wl,-Map,./bin/app_benchmark_none.map               -T ./target/micros/v850es_fx2/make/v850es_fx2.ld -o ./bin/app_benchmark_none.elf
+$GCC -std=$STD -Werror -Wall $wflags -Os -g -gdwarf-2 -fno-exceptions -ffunction-sections -fdata-sections -x c++ -fno-rtti -fno-use-cxa-atexit -fno-exceptions -fno-nonansi-builtins -fno-threadsafe-statics -fno-enforce-eh-specs -ftemplate-depth=32 -Wzero-as-null-pointer-constant -mv850e1 -mlong-calls -mgcc-abi -mtda=0 -mzda=0 -msda=0 -fno-inline-functions -ffreestanding -I./src/util/STL -I./src/mcal/v850es_fx2 -I./src -DAPP_BENCHMARK_TYPE=APP_BENCHMARK_TYPE_PI_AGM             -DAPP_BENCHMARK_STANDALONE_MAIN ./src/app/benchmark/app_benchmark_pi_agm.cpp             ./src/mcal/mcal_gcc_cxx_completion.cpp -nostdlib  -nostartfiles -Wl,--gc-sections -Wl,-Map,./bin/app_benchmark_pi_agm.map             -T ./target/micros/v850es_fx2/make/v850es_fx2.ld -o ./bin/app_benchmark_pi_agm.elf
+$GCC -std=$STD -Werror -Wall $wflags -Os -g -gdwarf-2 -fno-exceptions -ffunction-sections -fdata-sections -x c++ -fno-rtti -fno-use-cxa-atexit -fno-exceptions -fno-nonansi-builtins -fno-threadsafe-statics -fno-enforce-eh-specs -ftemplate-depth=32 -Wzero-as-null-pointer-constant -mv850e1 -mlong-calls -mgcc-abi -mtda=0 -mzda=0 -msda=0 -fno-inline-functions -ffreestanding -I./src/util/STL -I./src/mcal/v850es_fx2 -I./src -DAPP_BENCHMARK_TYPE=APP_BENCHMARK_TYPE_PI_SPIGOT          -DAPP_BENCHMARK_STANDALONE_MAIN ./src/app/benchmark/app_benchmark_pi_spigot.cpp          ./src/mcal/mcal_gcc_cxx_completion.cpp -nostdlib  -nostartfiles -Wl,--gc-sections -Wl,-Map,./bin/app_benchmark_pi_spigot.map          -T ./target/micros/v850es_fx2/make/v850es_fx2.ld -o ./bin/app_benchmark_pi_spigot.elf
+$GCC -std=$STD -Werror -Wall $wflags -Os -g -gdwarf-2 -fno-exceptions -ffunction-sections -fdata-sections -x c++ -fno-rtti -fno-use-cxa-atexit -fno-exceptions -fno-nonansi-builtins -fno-threadsafe-statics -fno-enforce-eh-specs -ftemplate-depth=32 -Wzero-as-null-pointer-constant -mv850e1 -mlong-calls -mgcc-abi -mtda=0 -mzda=0 -msda=0 -fno-inline-functions -ffreestanding -I./src/util/STL -I./src/mcal/v850es_fx2 -I./src -DAPP_BENCHMARK_TYPE=APP_BENCHMARK_TYPE_PI_SPIGOT_SINGLE   -DAPP_BENCHMARK_STANDALONE_MAIN ./src/app/benchmark/app_benchmark_pi_spigot_single.cpp   ./src/mcal/mcal_gcc_cxx_completion.cpp -nostdlib  -nostartfiles -Wl,--gc-sections -Wl,-Map,./bin/app_benchmark_pi_spigot_single.map   -T ./target/micros/v850es_fx2/make/v850es_fx2.ld -o ./bin/app_benchmark_pi_spigot_single.elf
+$GCC -std=$STD -Werror -Wall $wflags -Os -g -gdwarf-2 -fno-exceptions -ffunction-sections -fdata-sections -x c++ -fno-rtti -fno-use-cxa-atexit -fno-exceptions -fno-nonansi-builtins -fno-threadsafe-statics -fno-enforce-eh-specs -ftemplate-depth=32 -Wzero-as-null-pointer-constant -mv850e1 -mlong-calls -mgcc-abi -mtda=0 -mzda=0 -msda=0 -fno-inline-functions -ffreestanding -I./src/util/STL -I./src/mcal/v850es_fx2 -I./src -DAPP_BENCHMARK_TYPE=APP_BENCHMARK_TYPE_SOFT_DOUBLE_H2F1   -DAPP_BENCHMARK_STANDALONE_MAIN ./src/app/benchmark/app_benchmark_soft_double_h2f1.cpp   ./src/mcal/mcal_gcc_cxx_completion.cpp -nostdlib  -nostartfiles -Wl,--gc-sections -Wl,-Map,./bin/app_benchmark_soft_double_h2f1.map   -T ./target/micros/v850es_fx2/make/v850es_fx2.ld -o ./bin/app_benchmark_soft_double_h2f1.elf
+$GCC -std=$STD -Werror -Wall $wflags -Os -g -gdwarf-2 -fno-exceptions -ffunction-sections -fdata-sections -x c++ -fno-rtti -fno-use-cxa-atexit -fno-exceptions -fno-nonansi-builtins -fno-threadsafe-statics -fno-enforce-eh-specs -ftemplate-depth=32 -Wzero-as-null-pointer-constant -mv850e1 -mlong-calls -mgcc-abi -mtda=0 -mzda=0 -msda=0 -fno-inline-functions -ffreestanding -I./src/util/STL -I./src/mcal/v850es_fx2 -I./src -DAPP_BENCHMARK_TYPE=APP_BENCHMARK_TYPE_WIDE_DECIMAL       -DAPP_BENCHMARK_STANDALONE_MAIN ./src/app/benchmark/app_benchmark_wide_decimal.cpp       ./src/mcal/mcal_gcc_cxx_completion.cpp -nostdlib  -nostartfiles -Wl,--gc-sections -Wl,-Map,./bin/app_benchmark_wide_decimal.map       -T ./target/micros/v850es_fx2/make/v850es_fx2.ld -o ./bin/app_benchmark_wide_decimal.elf
+$GCC -std=$STD -Werror -Wall $wflags -Os -g -gdwarf-2 -fno-exceptions -ffunction-sections -fdata-sections -x c++ -fno-rtti -fno-use-cxa-atexit -fno-exceptions -fno-nonansi-builtins -fno-threadsafe-statics -fno-enforce-eh-specs -ftemplate-depth=32 -Wzero-as-null-pointer-constant -mv850e1 -mlong-calls -mgcc-abi -mtda=0 -mzda=0 -msda=0 -fno-inline-functions -ffreestanding -I./src/util/STL -I./src/mcal/v850es_fx2 -I./src -DAPP_BENCHMARK_TYPE=APP_BENCHMARK_TYPE_WIDE_INTEGER       -DAPP_BENCHMARK_STANDALONE_MAIN ./src/app/benchmark/app_benchmark_wide_integer.cpp       ./src/mcal/mcal_gcc_cxx_completion.cpp -nostdlib  -nostartfiles -Wl,--gc-sections -Wl,-Map,./bin/app_benchmark_wide_integer.map       -T ./target/micros/v850es_fx2/make/v850es_fx2.ld -o ./bin/app_benchmark_wide_integer.elf
+$GCC -std=$STD -Werror -Wall $wflags -Os -g -gdwarf-2 -fno-exceptions -ffunction-sections -fdata-sections -x c++ -fno-rtti -fno-use-cxa-atexit -fno-exceptions -fno-nonansi-builtins -fno-threadsafe-statics -fno-enforce-eh-specs -ftemplate-depth=32 -Wzero-as-null-pointer-constant -mv850e1 -mlong-calls -mgcc-abi -mtda=0 -mzda=0 -msda=0 -fno-inline-functions -ffreestanding -I./src/util/STL -I./src/mcal/v850es_fx2 -I./src -DAPP_BENCHMARK_TYPE=APP_BENCHMARK_TYPE_TRAPEZOID_INTEGRAL -DAPP_BENCHMARK_STANDALONE_MAIN ./src/app/benchmark/app_benchmark_trapezoid_integral.cpp ./src/mcal/mcal_gcc_cxx_completion.cpp -nostdlib  -nostartfiles -Wl,--gc-sections -Wl,-Map,./bin/app_benchmark_trapezoid_integral.map -T ./target/micros/v850es_fx2/make/v850es_fx2.ld -o ./bin/app_benchmark_trapezoid_integral.elf
+$GCC -std=$STD -Werror -Wall $wflags -Os -g -gdwarf-2 -fno-exceptions -ffunction-sections -fdata-sections -x c++ -fno-rtti -fno-use-cxa-atexit -fno-exceptions -fno-nonansi-builtins -fno-threadsafe-statics -fno-enforce-eh-specs -ftemplate-depth=32 -Wzero-as-null-pointer-constant -mv850e1 -mlong-calls -mgcc-abi -mtda=0 -mzda=0 -msda=0 -fno-inline-functions -ffreestanding -I./src/util/STL -I./src/mcal/v850es_fx2 -I./src -DAPP_BENCHMARK_TYPE=APP_BENCHMARK_TYPE_HASH_SHA256        -DAPP_BENCHMARK_STANDALONE_MAIN ./src/app/benchmark/app_benchmark_hash_sha256.cpp        ./src/mcal/mcal_gcc_cxx_completion.cpp -nostdlib  -nostartfiles -Wl,--gc-sections -Wl,-Map,./bin/app_benchmark_hash_sha256.map        -T ./target/micros/v850es_fx2/make/v850es_fx2.ld -o ./bin/app_benchmark_hash_sha256.elf
+
+echo check existences of ELF-files and map-files
+echo
+
+ls -la ./bin/app_benchmark_complex.elf ./bin/app_benchmark_complex.map
+result_ls_complex=$?
+
+ls -la ./bin/app_benchmark_crc.elf ./bin/app_benchmark_crc.map
+result_ls_crc=$?
+
+ls -la ./bin/app_benchmark_fast_math.elf ./bin/app_benchmark_fast_math.map
+result_ls_fast_math=$?
+
+ls -la ./bin/app_benchmark_filter.elf ./bin/app_benchmark_filter.map
+result_ls_filter=$?
+
+ls -la ./bin/app_benchmark_fixed_point.elf ./bin/app_benchmark_fixed_point.map
+result_ls_fixed_point=$?
+
+ls -la ./bin/app_benchmark_float.elf ./bin/app_benchmark_float.map
+result_ls_float=$?
+
+ls -la ./bin/app_benchmark_hash.elf ./bin/app_benchmark_hash.map
+result_ls_hash=$?
+
+ls -la ./bin/app_benchmark_none.elf ./bin/app_benchmark_none.map
+result_ls_none=$?
+
+ls -la ./bin/app_benchmark_pi_agm.elf ./bin/app_benchmark_pi_agm.map
+result_ls_pi_agm=$?
+
+ls -la ./bin/app_benchmark_pi_spigot.elf ./bin/app_benchmark_pi_spigot.map
+result_ls_pi_spigot=$?
+
+ls -la ./bin/app_benchmark_pi_spigot_single.elf ./bin/app_benchmark_pi_spigot_single.map
+result_ls_pi_spigot_single=$?
+
+ls -la ./bin/app_benchmark_soft_double_h2f1.elf ./bin/app_benchmark_soft_double_h2f1.map
+result_ls_soft_double_h2f1=$?
+
+ls -la ./bin/app_benchmark_trapezoid_integral.elf ./bin/app_benchmark_trapezoid_integral.map
+result_ls_trapezoid_integral=$?
+
+ls -la ./bin/app_benchmark_wide_decimal.elf ./bin/app_benchmark_wide_decimal.map
+result_ls_wide_decimal=$?
+
+ls -la ./bin/app_benchmark_wide_integer.elf ./bin/app_benchmark_wide_integer.map
+result_ls_wide_integer=$?
+
+ls -la ./bin/app_benchmark_hash_sha256.elf ./bin/app_benchmark_hash_sha256.map
+result_ls_hash_sha256=$?
+
+echo "result_ls_complex                   : "  "$result_ls_complex"
+echo "result_ls_crc                       : "  "$result_ls_crc"
+echo "result_ls_fast_math                 : "  "$result_ls_fast_math"
+echo "result_ls_filter                    : "  "$result_ls_filter"
+echo "result_ls_fixed_point               : "  "$result_ls_fixed_point"
+echo "result_ls_float                     : "  "$result_ls_float"
+echo "result_ls_hash                      : "  "$result_ls_hash"
+echo "result_ls_none                      : "  "$result_ls_none"
+echo "result_ls_pi_agm                    : "  "$result_ls_pi_agm"
+echo "result_ls_pi_spigot                 : "  "$result_ls_pi_spigot"
+echo "result_ls_pi_spigot_single          : "  "$result_ls_pi_spigot_single"
+echo "result_ls_soft_double_h2f1          : "  "$result_ls_soft_double_h2f1"
+echo "result_ls_trapezoid_integral        : "  "$result_ls_trapezoid_integral"
+echo "result_ls_wide_decimal              : "  "$result_ls_wide_decimal"
+echo "result_ls_wide_integer              : "  "$result_ls_wide_integer"
+echo "result_ls_hash_sha256               : "  "$result_ls_hash_sha256"
+
+echo verify result_total
+echo
+
+result_total=$((result_ls_complex+result_ls_crc+result_ls_fast_math+result_ls_filter+result_ls_fixed_point+result_ls_float+result_ls_hash+result_ls_none+result_ls_pi_agm+result_ls_pi_spigot+result_ls_pi_spigot_single+result_ls_soft_double_h2f1+result_ls_trapezoid_integral+result_ls_wide_decimal+result_ls_wide_integer+result_ls_hash_sha256))
+
+echo "result_total                        : "  "$result_total"
+
+exit $result_total
diff --git a/ref_app/target/micros/xtensa_esp32_s3_riscv_cop/startup/main.cpp b/ref_app/target/micros/xtensa_esp32_s3_riscv_cop/startup/main.cpp
index ddab42305..408c039f1 100644
--- a/ref_app/target/micros/xtensa_esp32_s3_riscv_cop/startup/main.cpp
+++ b/ref_app/target/micros/xtensa_esp32_s3_riscv_cop/startup/main.cpp
@@ -29,7 +29,17 @@
 
 #include <array>
 
-auto main() -> int;
+#if defined(ATTRIBUTE)
+#undef ATTRIBUTE
+#endif
+
+#if defined(_MSC_VER)
+#define ATTRIBUTE(a)
+#else
+#define ATTRIBUTE(a) __attribute__((a))
+#endif
+
+ATTRIBUTE(used) auto main() -> int;
 
 namespace
 {