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-rw-r--r--contrib/xilinx.mk5
1 files changed, 3 insertions, 2 deletions
diff --git a/contrib/xilinx.mk b/contrib/xilinx.mk
index e273460..34a1c20 100644
--- a/contrib/xilinx.mk
+++ b/contrib/xilinx.mk
@@ -39,9 +39,10 @@
#
# NOTE: DO NOT edit this file to change settings; instead edit Makefile
+synth_effort ?= high
coregen_work_dir ?= ./coregen-tmp
-map_opts ?= -timing -ol high -detail -pr b -register_duplication -w
-par_opts ?= -ol high
+map_opts ?= -timing -ol $(synth_effort) -detail -pr b -register_duplication -w
+par_opts ?= -ol $(synth_effort) -rl $(synth_effort)
hostbits = 64
iseenv= /opt/Xilinx/14.3/ISE_DS
iseenvfile?= $(iseenv)/settings$(hostbits).sh