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-rw-r--r--techlibs/ice40/cells_sim.v4
1 files changed, 2 insertions, 2 deletions
diff --git a/techlibs/ice40/cells_sim.v b/techlibs/ice40/cells_sim.v
index 609facc93..4402f8d36 100644
--- a/techlibs/ice40/cells_sim.v
+++ b/techlibs/ice40/cells_sim.v
@@ -1363,9 +1363,9 @@ module SB_MAC16 (
wire [15:0] p_Ah_Bh, p_Al_Bh, p_Ah_Bl, p_Al_Bl;
wire [15:0] Ah, Al, Bh, Bl;
assign Ah = {A_SIGNED ? {8{iA[15]}} : 8'b0, iA[15: 8]};
- assign Al = {A_SIGNED ? {8{iA[ 7]}} : 8'b0, iA[ 7: 0]};
+ assign Al = {A_SIGNED && MODE_8x8 ? {8{iA[ 7]}} : 8'b0, iA[ 7: 0]};
assign Bh = {B_SIGNED ? {8{iB[15]}} : 8'b0, iB[15: 8]};
- assign Bl = {B_SIGNED ? {8{iB[ 7]}} : 8'b0, iB[ 7: 0]};
+ assign Bl = {B_SIGNED && MODE_8x8 ? {8{iB[ 7]}} : 8'b0, iB[ 7: 0]};
assign p_Ah_Bh = Ah * Bh;
assign p_Al_Bh = Al * Bh;
assign p_Ah_Bl = Ah * Bl;