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-rw-r--r--techlibs/xilinx/dsp_map.v2
1 files changed, 1 insertions, 1 deletions
diff --git a/techlibs/xilinx/dsp_map.v b/techlibs/xilinx/dsp_map.v
index da1d6f3a9..28e456898 100644
--- a/techlibs/xilinx/dsp_map.v
+++ b/techlibs/xilinx/dsp_map.v
@@ -20,7 +20,7 @@ module \$__MUL25X18 (input [24:0] A, input [17:0] B, output [42:0] Y);
.PREG(0)
) _TECHMAP_REPLACE_ (
//Data path
- .A({5'b0, A}),
+ .A({{5{A[24]}}, A}),
.B(B),
.C(48'b0),
.D(24'b0),