From 0a0073dc9fae7d867d737623d30917cc4b285b16 Mon Sep 17 00:00:00 2001
From: notaz <notasas@gmail.com>
Date: Sun, 28 Jan 2018 19:13:01 +0200
Subject: [PATCH] fix a corner case with h-int

---
 pico/pico_cmn.c | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/pico/pico_cmn.c b/pico/pico_cmn.c
index 95b6b103..1f89da90 100644
--- a/pico/pico_cmn.c
+++ b/pico/pico_cmn.c
@@ -113,9 +113,7 @@ static int PicoFrameHints(void)
   z80_resetCycles();
   PsndStartFrame();
 
-  // Load H-Int counter
-  hint = (pv->status & PVS_ACTIVE) ? pv->hint_cnt : pv->reg[10];
-
+  hint = pv->hint_cnt;
   pv->status |= PVS_ACTIVE;
 
   for (y = 0; ; y++)
@@ -306,11 +304,14 @@ static int PicoFrameHints(void)
 
   PAD_DELAY();
 
-  if ((pv->status & PVS_ACTIVE) && --hint < 0)
-  {
-    hint = pv->reg[10]; // Reload H-Int counter
-    do_hint(pv);
+  if (unlikely(pv->status & PVS_ACTIVE)) {
+    if (--hint < 0) {
+      hint = pv->reg[10]; // Reload H-Int counter
+      do_hint(pv);
+    }
   }
+  else
+    hint = pv->reg[10];
 
   // Run scanline:
   Pico.t.m68c_line_start = Pico.t.m68c_aim;
-- 
2.39.5