diff --git a/top/x400/rf/testbench/Makefile b/top/x400/rf/sim/Makefile
similarity index 100%
rename from top/x400/rf/testbench/Makefile
rename to top/x400/rf/sim/Makefile
diff --git a/top/x400/rf/testbench/rf_all_tb.sv b/top/x400/rf/sim/rf_all_tb.sv
similarity index 100%
rename from top/x400/rf/testbench/rf_all_tb.sv
rename to top/x400/rf/sim/rf_all_tb.sv
diff --git a/top/x400/rf/testbench/tb_adc_gearbox_2x1.vhd b/top/x400/rf/sim/tb_adc_gearbox_2x1.vhd
similarity index 100%
rename from top/x400/rf/testbench/tb_adc_gearbox_2x1.vhd
rename to top/x400/rf/sim/tb_adc_gearbox_2x1.vhd
diff --git a/top/x400/rf/testbench/tb_adc_gearbox_2x4.vhd b/top/x400/rf/sim/tb_adc_gearbox_2x4.vhd
similarity index 100%
rename from top/x400/rf/testbench/tb_adc_gearbox_2x4.vhd
rename to top/x400/rf/sim/tb_adc_gearbox_2x4.vhd
diff --git a/top/x400/rf/testbench/tb_adc_gearbox_8x4.vhd b/top/x400/rf/sim/tb_adc_gearbox_8x4.vhd
similarity index 100%
rename from top/x400/rf/testbench/tb_adc_gearbox_8x4.vhd
rename to top/x400/rf/sim/tb_adc_gearbox_8x4.vhd
diff --git a/top/x400/rf/testbench/tb_capture_sysref.vhd b/top/x400/rf/sim/tb_capture_sysref.vhd
similarity index 100%
rename from top/x400/rf/testbench/tb_capture_sysref.vhd
rename to top/x400/rf/sim/tb_capture_sysref.vhd
diff --git a/top/x400/rf/testbench/tb_dac_gearbox_12x8.vhd b/top/x400/rf/sim/tb_dac_gearbox_12x8.vhd
similarity index 100%
rename from top/x400/rf/testbench/tb_dac_gearbox_12x8.vhd
rename to top/x400/rf/sim/tb_dac_gearbox_12x8.vhd
diff --git a/top/x400/rf/testbench/tb_dac_gearbox_4x2.vhd b/top/x400/rf/sim/tb_dac_gearbox_4x2.vhd
similarity index 100%
rename from top/x400/rf/testbench/tb_dac_gearbox_4x2.vhd
rename to top/x400/rf/sim/tb_dac_gearbox_4x2.vhd
diff --git a/top/x400/rf/testbench/tb_dac_gearbox_6x12.vhd b/top/x400/rf/sim/tb_dac_gearbox_6x12.vhd
similarity index 100%
rename from top/x400/rf/testbench/tb_dac_gearbox_6x12.vhd
rename to top/x400/rf/sim/tb_dac_gearbox_6x12.vhd
diff --git a/top/x400/rf/testbench/tb_ddc_400m_saturate.vhd b/top/x400/rf/sim/tb_ddc_400m_saturate.vhd
similarity index 100%
rename from top/x400/rf/testbench/tb_ddc_400m_saturate.vhd
rename to top/x400/rf/sim/tb_ddc_400m_saturate.vhd
diff --git a/top/x400/rf/testbench/tb_duc_400m_saturate.vhd b/top/x400/rf/sim/tb_duc_400m_saturate.vhd
similarity index 100%
rename from top/x400/rf/testbench/tb_duc_400m_saturate.vhd
rename to top/x400/rf/sim/tb_duc_400m_saturate.vhd
diff --git a/top/x400/rf/testbench/tb_rf_nco_reset.vhd b/top/x400/rf/sim/tb_rf_nco_reset.vhd
similarity index 100%
rename from top/x400/rf/testbench/tb_rf_nco_reset.vhd
rename to top/x400/rf/sim/tb_rf_nco_reset.vhd
diff --git a/top/x400/rf/testbench/tb_rf_reset_controller.vhd b/top/x400/rf/sim/tb_rf_reset_controller.vhd
similarity index 100%
rename from top/x400/rf/testbench/tb_rf_reset_controller.vhd
rename to top/x400/rf/sim/tb_rf_reset_controller.vhd