diff --git a/projects/mips_sys/ise101/mips_sys/Makefile b/projects/mips_sys/ise101/mips_sys/Makefile
index bae0e34..48fb051 100644
--- a/projects/mips_sys/ise101/mips_sys/Makefile
+++ b/projects/mips_sys/ise101/mips_sys/Makefile
@@ -23,7 +23,7 @@ $(PRJ).ngd: $(PRJ).ngc ./project/$(PRJ).ucf
 
 # Map
 $(PRJ)_map.ncd: $(PRJ).ngd
-	map -intstyle xflow -p $(DEVICE) -timing -logic_opt on -ol high -xe n -t 1 -register_duplication -global_opt on	-retiming on -equivalent_register_removal on -cm area -pr b -k 4 -power off -o $(PRJ)_map.ncd $(PRJ).ngd $(PRJ).pcf
+	map -intstyle xflow -p $(DEVICE) -timing -logic_opt on -ol high -xe n -t 1 -register_duplication -cm area -ignore_keep_hierarchy -pr off -k 4 -power off -o $(PRJ)_map.ncd $(PRJ).ngd $(PRJ).pcf
 
 # PAR
 $(PRJ).ncd: $(PRJ)_map.ncd
@@ -43,6 +43,4 @@ clean:
 	rm -f xlnx_auto_0.ise
 	rm -f smartpreview.twr
 	rm -f $(PRJ)*.*
-	
-
-
+	
\ No newline at end of file
diff --git a/projects/mips_sys/ise101/mips_sys/project/mips_sys.xst b/projects/mips_sys/ise101/mips_sys/project/mips_sys.xst
index ac0ea71..11cc07d 100644
--- a/projects/mips_sys/ise101/mips_sys/project/mips_sys.xst
+++ b/projects/mips_sys/ise101/mips_sys/project/mips_sys.xst
@@ -41,7 +41,7 @@ run
 -rom_style Auto
 -auto_bram_packing NO
 -mux_extract YES
--resource_sharing NO
+-resource_sharing YES
 -async_to_sync NO
 -use_dsp48 auto
 -iobuf YES
@@ -49,14 +49,12 @@ run
 -bufg 32
 -bufr 24
 -register_duplication YES
--register_balancing Yes
--move_first_stage YES
--move_last_stage YES
+-register_balancing No
 -slice_packing YES
 -optimize_primitives NO
 -use_clock_enable Auto
 -use_sync_set Auto
 -use_sync_reset Auto
--iob true
+-iob auto
 -equivalent_register_removal YES
 -slice_utilization_ratio_maxmargin 5