diff --git a/dataflow_neuro/coders.act b/dataflow_neuro/coders.act
index 14a6264..4c6a451 100644
--- a/dataflow_neuro/coders.act
+++ b/dataflow_neuro/coders.act
@@ -176,17 +176,12 @@ defproc decoder_2d_hs (avMx1of2<NxC+NyC> in; a1of1 out[Nx*Ny]; bool? reset_B; po
 	decoder_dualrail<NyC,Ny> d_dr_y(.supply = supply);
 	(i:0..NyC-1:d_dr_y.in.d[i] = addr_buf.out.d.d[i+NxC];)
 
-	// Buffer dualrail decoder outputs
-	// sigbuf<Ny*2> d_dr_xX[Nx]; // x2 because X req lines go to twice the num of gates
-	// sigbuf<Nx> d_dr_yX[Ny];
-	// (i:Nx:
-	// 	d_dr_xX[i].in = d_dr_x.out[i];
-	// 	d_dr_xX[i].supply = supply;
-	// )
-	// (i:Ny:
-	// 	d_dr_yX[i].in = d_dr_y.out[i];
-	// 	d_dr_yX[i].supply = supply;
-	// )
+	// sig buf for reqx lines, since they go to synapse pull down gates.
+	sigbuf<Ny+1> d_dr_xX[Nx];
+	(i:Nx:
+		d_dr_xX[i].in = d_dr_x.out[i];
+		d_dr_xX[i].supply = supply;
+	)
 
 	// Validity 
 	vtree<NxC> vtree_x (.supply = supply);
@@ -213,7 +208,7 @@ defproc decoder_2d_hs (avMx1of2<NxC+NyC> in; a1of1 out[Nx*Ny]; bool? reset_B; po
 		(j:Ny:
 			index = i + Nx*j;
 			ack_pulldowns[index].a = out[index].a;
-			ack_pulldowns[index].b = d_dr_x.out[i];
+			ack_pulldowns[index].b = d_dr_xX[i].out[j];
 			ack_pulldowns[index].y = _out_acksB[i];
 			ack_pulldowns[index].vss = supply.vss;
 			ack_pulldowns[index].vdd = supply.vdd;
@@ -224,7 +219,7 @@ defproc decoder_2d_hs (avMx1of2<NxC+NyC> in; a1of1 out[Nx*Ny]; bool? reset_B; po
 	PULLUP_X4 pu[Nx]; // TODO probably replace this with variable strength PU
 	AND2_X1 pu_ANDs[Nx];
 	(i:Nx:
-		pu_ANDs[i].a = d_dr_x.out[i];
+		pu_ANDs[i].a = d_dr_xX[i].out[Ny];
 		pu_ANDs[i].b = reset_B; // TODO buffer
 		pu_ANDs[i].vdd = supply.vdd;
 		pu_ANDs[i].vss = supply.vss;