Check that files exist before copying them.

libraries/technology/ip_stratixiv/ddr3_uphy_4g_800_master/copy_hex_files.tcl

@@ -25,6 +25,8 @@
 set IP_DIR "$env(RADIOHDL)/libraries/technology/ip_stratixiv/ddr3_uphy_4g_800_master/generated/ip_stratixiv_ddr3_uphy_4g_800_master_sim"
 
 # Copy ROM/RAM files to simulation directory
-file copy -force $IP_DIR/ip_stratixiv_ddr3_uphy_4g_800_master/ip_stratixiv_ddr3_uphy_4g_800_master_s0_sequencer_mem.hex ./
-file copy -force $IP_DIR/ip_stratixiv_ddr3_uphy_4g_800_master/ip_stratixiv_ddr3_uphy_4g_800_master_s0_AC_ROM.hex ./
-file copy -force $IP_DIR/ip_stratixiv_ddr3_uphy_4g_800_master/ip_stratixiv_ddr3_uphy_4g_800_master_s0_inst_ROM.hex ./
+if {[file isdirectory $IP_DIR]} {
+    file copy -force $IP_DIR/ip_stratixiv_ddr3_uphy_4g_800_master/ip_stratixiv_ddr3_uphy_4g_800_master_s0_sequencer_mem.hex ./
+    file copy -force $IP_DIR/ip_stratixiv_ddr3_uphy_4g_800_master/ip_stratixiv_ddr3_uphy_4g_800_master_s0_AC_ROM.hex ./
+    file copy -force $IP_DIR/ip_stratixiv_ddr3_uphy_4g_800_master/ip_stratixiv_ddr3_uphy_4g_800_master_s0_inst_ROM.hex ./
+}