From 4a05cad7f8a6ee57292e5360eb06305e13fc308b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marcelina=20Ko=C5=9Bcielnicka?= <mwk@0x04.net>
Date: Fri, 24 Jul 2020 17:01:26 +0200
Subject: async2sync: Support all FF types.

---
 kernel/ff.h | 46 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 46 insertions(+)

(limited to 'kernel')

diff --git a/kernel/ff.h b/kernel/ff.h
index 8dc83eb49..0aecbaa2a 100644
--- a/kernel/ff.h
+++ b/kernel/ff.h
@@ -323,6 +323,52 @@ struct FfData {
 		return res;
 	}
 
+	void unmap_ce(Module *module) {
+		if (!has_en)
+			return;
+		log_assert(has_clk);
+		if (has_srst && ce_over_srst)
+			unmap_srst(module);
+
+		if (!is_fine) {
+			if (pol_en)
+				sig_d = module->Mux(NEW_ID, sig_q, sig_d, sig_en);
+			else
+				sig_d = module->Mux(NEW_ID, sig_d, sig_q, sig_en);
+		} else {
+			if (pol_en)
+				sig_d = module->MuxGate(NEW_ID, sig_q, sig_d, sig_en);
+			else
+				sig_d = module->MuxGate(NEW_ID, sig_d, sig_q, sig_en);
+		}
+		has_en = false;
+	}
+
+	void unmap_srst(Module *module) {
+		if (!has_srst)
+			return;
+		if (has_en && !ce_over_srst)
+			unmap_ce(module);
+
+		if (!is_fine) {
+			if (pol_srst)
+				sig_d = module->Mux(NEW_ID, sig_d, val_srst, sig_srst);
+			else
+				sig_d = module->Mux(NEW_ID, val_srst, sig_d, sig_srst);
+		} else {
+			if (pol_srst)
+				sig_d = module->MuxGate(NEW_ID, sig_d, val_srst[0], sig_srst);
+			else
+				sig_d = module->MuxGate(NEW_ID, val_srst[0], sig_d, sig_srst);
+		}
+		has_srst = false;
+	}
+
+	void unmap_ce_srst(Module *module) {
+		unmap_ce(module);
+		unmap_srst(module);
+	}
+
 	Cell *emit(Module *module, IdString name) {
 		if (!width)
 			return nullptr;
-- 
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