From fe43bdc3346450deb1baed2c1f268c92efc6e9cf Mon Sep 17 00:00:00 2001
From: kub <derkub@gmail.com>
Date: Fri, 24 Apr 2020 19:00:41 +0200
Subject: [PATCH] 32x poll detection fix

---
 pico/32x/sh2soc.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/pico/32x/sh2soc.c b/pico/32x/sh2soc.c
index 369fc0de..9da3f296 100644
--- a/pico/32x/sh2soc.c
+++ b/pico/32x/sh2soc.c
@@ -312,7 +312,10 @@ u32 REGPARM(2) sh2_peripheral_read32(u32 a, SH2 *sh2)
 
   elprintf_sh2(sh2, EL_32XP, "peri r32 [%08x] %08x @%06x",
     a | ~0x1ff, d, sh2_pc(sh2));
-  if ((a & 0x1c0) == 0x140) {
+  if (a == 0x18c)
+    // kludge for polling COMM while polling for end of DMA
+    sh2->poll_cnt = 0;
+  else if ((a & 0x1c0) == 0x140) {
     // abused as comm area
     DRC_SAVE_SR(sh2);
     p32x_sh2_poll_detect(a, sh2, SH2_STATE_CPOLL, 3);
-- 
2.39.2