From 5b5c7ce5999355f504740181b06e61a05bec4058 Mon Sep 17 00:00:00 2001
From: Maik Merten <maikmerten@googlemail.com>
Date: Sat, 5 Mar 2022 17:33:14 +0100
Subject: icetime PCF parsing: handle -pullup and -pullup_resistor in set_io
 constraints

---
 icetime/icetime.cc | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/icetime/icetime.cc b/icetime/icetime.cc
index d730fc6..e872cbd 100644
--- a/icetime/icetime.cc
+++ b/icetime/icetime.cc
@@ -221,10 +221,20 @@ void read_pcf(const char *filename)
 		if (tok == nullptr || strcmp(tok, "set_io"))
 			continue;
 
+        bool skip_next = false;
 		std::vector<std::string> args;
 		while ((tok = strtok(nullptr, " \t\r\n")) != nullptr) {
+            if(skip_next) {
+                skip_next = false;
+                continue;
+            }
 			if (!strcmp(tok, "--warn-no-port"))
 				continue;
+            if (!strcmp(tok, "-pullup") || !strcmp(tok, "-pullup_resistor")) {
+                skip_next = true; // skip argument
+                continue;
+            }
+
 			args.push_back(tok);
 		}
 
-- 
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