From d6cc6abfec4cb853d472494224811fa4ef85d4f4 Mon Sep 17 00:00:00 2001
From: nattthebear <goyuken@gmail.com>
Date: Sat, 13 Jun 2020 16:50:01 -0400
Subject: [PATCH] pcfx - hide ports based on multitap

---
 .../Consoles/NEC/PCFX/Tst.cs                    | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/src/BizHawk.Emulation.Cores/Consoles/NEC/PCFX/Tst.cs b/src/BizHawk.Emulation.Cores/Consoles/NEC/PCFX/Tst.cs
index c0e4ff1743..3afff9ecdc 100644
--- a/src/BizHawk.Emulation.Cores/Consoles/NEC/PCFX/Tst.cs
+++ b/src/BizHawk.Emulation.Cores/Consoles/NEC/PCFX/Tst.cs
@@ -59,5 +59,22 @@ namespace BizHawk.Emulation.Cores.Consoles.NEC.PCFX
 			["SELECT"] = "Select",
 			["RUN"] = "Run"
 		};
+
+		protected override HashSet<string> ComputeHiddenPorts()
+		{
+			// NB: Since we're hiding these settings up above, this will always trim us down to 2 ports
+			var devCount = 8;
+			if (SettingsQuery("pcfx.input.port1.multitap") != "1")
+				devCount -= 3;
+			if (SettingsQuery("pcfx.input.port2.multitap") != "1")
+				devCount -= 3;
+			var ret = new HashSet<string>();
+			for (var i = 1; i <= 8; i++)
+			{
+				if (i > devCount)
+					ret.Add($"port{i}");
+			}
+			return ret;
+		}
 	}
 }