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authorEddie Hung <eddie@fpgeh.com>2019-08-22 12:17:25 -0700
committerEddie Hung <eddie@fpgeh.com>2019-08-22 16:04:07 -0700
commitc5754d9e8bed8d9238a462712f39a8d818401ad3 (patch)
tree73bf9356da09a1fbfca6e1bb7fb2622cabb7d6fa /tests
parentd945b8a357c567f5f3565983da09f24c0f295461 (diff)
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Make multiplier wider, do not do tech independent synth
Diffstat (limited to 'tests')
-rw-r--r--tests/ice40/mul.v7
-rw-r--r--tests/ice40/mul.ys7
2 files changed, 6 insertions, 8 deletions
diff --git a/tests/ice40/mul.v b/tests/ice40/mul.v
index c099db0d9..d5b48b1d7 100644
--- a/tests/ice40/mul.v
+++ b/tests/ice40/mul.v
@@ -1,10 +1,9 @@
module top
(
- input [3:0] x,
- input [3:0] y,
+ input [5:0] x,
+ input [5:0] y,
- output [3:0] A,
- output [3:0] B
+ output [11:0] A,
);
assign A = x * y;
diff --git a/tests/ice40/mul.ys b/tests/ice40/mul.ys
index 35048d14a..adf1b3211 100644
--- a/tests/ice40/mul.ys
+++ b/tests/ice40/mul.ys
@@ -1,9 +1,8 @@
read_verilog mul.v
hierarchy -top top
-synth -flatten -run coarse # technology-independent coarse grained synthesis
+#synth -flatten -run coarse # technology-independent coarse grained synthesis
equiv_opt -assert -map +/ice40/cells_sim.v synth_ice40 -dsp # equivalency check same as technology-dependent fine-grained synthesis
design -load postopt # load the post-opt design (otherwise equiv_opt loads the pre-opt design)
cd top # Constrain all select calls below inside the top module
-select -assert-count 15 t:SB_LUT4
-select -assert-count 3 t:SB_CARRY
-select -assert-none t:SB_LUT4 t:SB_CARRY %% t:* %D
+select -assert-count 1 t:SB_MAC16
+select -assert-none t:SB_MAC16 %% t:* %D