From: kub <derkub@gmail.com>
Date: Tue, 4 Oct 2022 21:11:26 +0000 (+0000)
Subject: core, TH input latency only if output was low
X-Git-Tag: v2.00~284
X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e2a5b098e052785754fe67bf2d926cfc36357291;p=picodrive.git

core, TH input latency only if output was low
---

diff --git a/pico/memory.c b/pico/memory.c
index e76082a0..03450191 100644
--- a/pico/memory.c
+++ b/pico/memory.c
@@ -416,8 +416,8 @@ NOINLINE void io_ports_write(u32 a, u32 d)
   // after switching TH to input there's a latency before the pullup value is 
   // read back as input (see Decap Attack, not in Samurai Showdown, 32x WWF Raw)
   if (4 <= a && a <= 5) {
-    if ((PicoMem.ioports[a] & 0x40) && !(d & 0x40))
-      // latency after switching to input
+    if ((PicoMem.ioports[a] & 0x40) && !(d & 0x40) && !(PicoMem.ioports[a - 3] & 0x40))
+      // latency after switching to input and output was low
       padTHLatency[a - 4] = SekCyclesDone() + 25;
   }