From 15d3fd1b9b612ebe9165b815d804733786727c69 Mon Sep 17 00:00:00 2001
From: Michele <michelemastella27@gmail.com>
Date: Thu, 3 Mar 2022 19:23:13 +0100
Subject: [PATCH] Added sigbuf_1output for signals that cannot have array
 outputs

---
 dataflow_neuro/coders.act    |  8 ++++----
 dataflow_neuro/treegates.act | 26 ++++++++++++++++++++++++++
 2 files changed, 30 insertions(+), 4 deletions(-)

diff --git a/dataflow_neuro/coders.act b/dataflow_neuro/coders.act
index 6a6266f..3a830ac 100644
--- a/dataflow_neuro/coders.act
+++ b/dataflow_neuro/coders.act
@@ -246,9 +246,9 @@ namespace tmpl {
 			arbtree<N> Xarb(.in = _x_temp,.out = _out_arb_X,.supply = supply);
 			arbtree<M> Yarb(.in = _y_temp,.out = _out_arb_Y,.supply = supply);
 
-			// Sigbufs for strong ackowledge signals (note that the sigbuf needs to be changed)
-			sigbuf<ACK_STRENGTH> x_ack_arb[N];
-			sigbuf<ACK_STRENGTH> y_ack_arb[M];
+			// Sigbufs for strong ackowledge signals
+			sigbuf_1output<ACK_STRENGTH> x_ack_arb[N];
+			sigbuf_1output<ACK_STRENGTH> y_ack_arb[M];
 			(i:N:
 				x_ack_arb[i].in = _x_temp[i].a;
 				x_ack_arb[i].out[0] = x[i].a;
@@ -349,7 +349,7 @@ namespace tmpl {
             )
             bool _addr_v
             vtree addr_validity(.in = addr,.out = _addr_v);
-            sigbuf<4> addr_validity_x(.in = _addr_v,.out = addr.v);
+            sigbuf_1output<4> addr_validity_x(.in = _addr_v,.out = addr.v);
             addr_validity.supply = supply;
             addr_validity_x.supply = supply;
 
diff --git a/dataflow_neuro/treegates.act b/dataflow_neuro/treegates.act
index bf89863..ce2e57b 100644
--- a/dataflow_neuro/treegates.act
+++ b/dataflow_neuro/treegates.act
@@ -439,6 +439,32 @@ defproc sigbuf (bool? in; bool! out[N]; power supply)
    (i:1..N-1:out[i]=out[0];)
 }
 
+//Sigbuf in which there is only 1 output. Made for outputs that cannot have multiple wires.
+export template<pint N>
+defproc sigbuf_1output (bool? in; bool! out; power supply)
+{
+
+  { N >= 0 : "sigbuf: parameter error" };
+  { N <= 43 : "sigbuf: parameter error, N too big" };
+
+    /* -- just use in sized driver here -- */
+    [ N <= 4 ->
+    BUF_X1 buf1 (.a = in, .y = out, .vdd = supply.vdd, .vss = supply.vss);
+    [] N >= 5 & N <= 7 -> 
+    BUF_X2 buf2 (.a = in, .y = out, .vdd = supply.vdd, .vss = supply.vss);
+    [] N >= 8 & N <= 10 -> 
+    BUF_X3 buf3 (.a = in, .y = out, .vdd = supply.vdd, .vss = supply.vss);
+   [] N >= 11 & N <= 14 -> 
+    BUF_X4 buf4 (.a = in, .y = out, .vdd = supply.vdd, .vss = supply.vss);
+   [] N >= 15 & N <= 18 -> 
+    BUF_X6 buf6 (.a = in, .y = out, .vdd = supply.vdd, .vss = supply.vss);
+   [] N >= 19 & N <= 29 -> 
+    BUF_X8 buf8 (.a = in, .y = out, .vdd = supply.vdd, .vss = supply.vss);
+   [] N >= 30 & N <= 42 -> 
+    BUF_X12 buf12 (.a = in, .y = out, .vdd = supply.vdd, .vss = supply.vss);
+   ]
+}
+
 
 
 }}