From cf1ae6d8301a00307920742b25d61d08abd3d1da Mon Sep 17 00:00:00 2001
From: Hannes Haberl <hannes.haberl@student.tugraz.at>
Date: Tue, 25 Apr 2023 19:09:23 +0200
Subject: [PATCH 1/2] XDC: Add missing OBUFT primitive

---
 xdc-plugin/xdc.cc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/xdc-plugin/xdc.cc b/xdc-plugin/xdc.cc
index 9a6602956..3b06ec8eb 100644
--- a/xdc-plugin/xdc.cc
+++ b/xdc-plugin/xdc.cc
@@ -56,6 +56,7 @@ const std::unordered_map<std::string, SetPropertyOptions> set_property_options_m
 // corresponding PADs
 const std::unordered_map<std::string, std::vector<std::string>> supported_primitive_parameters = {
   {"OBUF", {"IO_LOC_PAIRS", "IOSTANDARD", "DRIVE", "SLEW", "IN_TERM"}},
+  {"OBUFT", {"IO_LOC_PAIRS", "IOSTANDARD", "DRIVE", "SLEW", "IN_TERM"}},
   {"OBUFDS", {"IO_LOC_PAIRS", "IOSTANDARD", "SLEW", "IN_TERM"}},
   {"OBUFTDS", {"IO_LOC_PAIRS", "IOSTANDARD", "SLEW", "IN_TERM"}},
   {"IBUF", {"IO_LOC_PAIRS", "IOSTANDARD"}},

From 1951b86c1156f96be950ce0a8b20e39377b8770f Mon Sep 17 00:00:00 2001
From: Hannes Haberl <hannes.haberl@student.tugraz.at>
Date: Fri, 28 Apr 2023 17:52:37 +0200
Subject: [PATCH 2/2] XDC: Add OBUFT to io_loc_pairs testcase

---
 .../io_loc_pairs/io_loc_pairs.golden.json     | 11 +++++++-
 xdc-plugin/tests/io_loc_pairs/io_loc_pairs.v  | 26 ++++++++++++++++---
 .../tests/io_loc_pairs/io_loc_pairs.xdc       |  9 +++++++
 3 files changed, 42 insertions(+), 4 deletions(-)

diff --git a/xdc-plugin/tests/io_loc_pairs/io_loc_pairs.golden.json b/xdc-plugin/tests/io_loc_pairs/io_loc_pairs.golden.json
index 10d3909c7..733220e6e 100644
--- a/xdc-plugin/tests/io_loc_pairs/io_loc_pairs.golden.json
+++ b/xdc-plugin/tests/io_loc_pairs/io_loc_pairs.golden.json
@@ -10,6 +10,11 @@
         "IO_LOC_PAIRS": "signal_p:N2,signal_n:N1",
         "SLEW": "FAST"
     },
+    "OBUFT_1": {
+        "IOSTANDARD": "LVCMOS25",
+        "IO_LOC_PAIRS": "tri_top:U16",
+        "SLEW": "FAST"
+    },
     "OBUF_6": {
         "DRIVE": "12",
         "IOSTANDARD": "LVCMOS33",
@@ -28,6 +33,10 @@
         "IO_LOC_PAIRS": "out_a:E3",
         "SLEW": "FAST"
     },
+    "bottom_inst.OBUFT_2": {
+        "IOSTANDARD": "LVCMOS33",
+        "IO_LOC_PAIRS": "tri_bottom:E19"
+    },
     "bottom_inst.OBUF_10": {
         "IOSTANDARD": "LVCMOS18",
         "IO_LOC_PAIRS": "out_b[0]:C2",
@@ -50,4 +59,4 @@
         "IO_LOC_PAIRS": "led[3]:N4",
         "SLEW": "SLOW"
     }
-}
+}
\ No newline at end of file
diff --git a/xdc-plugin/tests/io_loc_pairs/io_loc_pairs.v b/xdc-plugin/tests/io_loc_pairs/io_loc_pairs.v
index bb08dee5f..0f1873f84 100644
--- a/xdc-plugin/tests/io_loc_pairs/io_loc_pairs.v
+++ b/xdc-plugin/tests/io_loc_pairs/io_loc_pairs.v
@@ -26,7 +26,9 @@ module top (
     output tx_n,
     output tx_p,
     input ibufds_gte2_i,
-    input ibufds_gte2_ib
+    input ibufds_gte2_ib,
+    output tri_top,
+    output tri_bottom
 );
 
   wire LD6, LD7, LD8, LD9;
@@ -77,7 +79,10 @@ module top (
   bottom bottom_inst (
       .I (LD8),
       .O (led[2]),
-      .OB(out_b)
+      .OB(out_b),
+      .in_tri(LD7),
+      .t_tri(LD8),
+      .out_tri(tri_bottom)
   );
 
   bottom_intermediate bottom_intermediate_inst (
@@ -97,6 +102,12 @@ module top (
       .I (ibufds_gte2_i),
       .IB(ibufds_gte2_ib)
   );
+
+  OBUFT OBUFT_1 (
+      .I(LD6),
+      .T(LD7),
+      .O(tri_top)
+  );
 endmodule
 
 module bottom_intermediate (
@@ -119,7 +130,10 @@ endmodule
 module bottom (
     input I,
     output [1:0] OB,
-    output O
+    output O,
+    input in_tri,
+    input t_tri,
+    output out_tri
 );
 
   OBUF #(
@@ -145,4 +159,10 @@ module bottom (
       .I(I),
       .O(OB[1])
   );
+
+  OBUFT OBUFT_2 (
+      .I(in_tri),
+      .T(t_tri),
+      .O(out_tri)
+  );
 endmodule
diff --git a/xdc-plugin/tests/io_loc_pairs/io_loc_pairs.xdc b/xdc-plugin/tests/io_loc_pairs/io_loc_pairs.xdc
index 9263df9cf..9d0513ca3 100644
--- a/xdc-plugin/tests/io_loc_pairs/io_loc_pairs.xdc
+++ b/xdc-plugin/tests/io_loc_pairs/io_loc_pairs.xdc
@@ -50,3 +50,12 @@ set_property LOC G4 [get_ports {tx_n}]
 # IBUFDS_GTE2
 set_property LOC G5 [get_ports {ibufds_gte2_i}]
 set_property LOC G6 [get_ports {ibufds_gte2_ib}]
+
+# OBUFT_1
+set_property SLEW FAST [get_ports tri_top]
+set_property LOC U16 [get_ports tri_top]
+set_property IOSTANDARD LVCMOS25 [get_ports tri_top]
+
+# OBUFT_2
+set_property LOC E19 [get_ports tri_bottom]
+set_property IOSTANDARD LVCMOS33 [get_ports tri_bottom]