From 72c2a04a9d4ae0fe52383dbf4d680849036b48a1 Mon Sep 17 00:00:00 2001
From: kub <derkub@gmail.com>
Date: Fri, 22 Apr 2022 20:50:20 +0200
Subject: [PATCH] core vdp, fix status reading synchronisation

---
 pico/videoport.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/pico/videoport.c b/pico/videoport.c
index 279347b9..07b16b51 100644
--- a/pico/videoport.c
+++ b/pico/videoport.c
@@ -984,14 +984,15 @@ static u32 VideoSr(const struct PicoVideo *pv)
 {
   unsigned int hp = pv->reg[12]&1 ? hboff40*488/slots40 : hboff32*488/slots32;
   unsigned int hl = pv->reg[12]&1 ? hblen40*488/slots40 : hblen32*488/slots32;
-  unsigned int c;
-  u32 d = (u16)pv->status;
+  unsigned int c = SekCyclesDone() - Pico.t.m68c_line_start;
+  u32 d;
+
+  PicoVideoFIFOSync(c);
+  d = (u16)pv->status;
 
-  c = SekCyclesDone() - Pico.t.m68c_line_start;
   if (c - hp < hl)
     d |= SR_HB;
 
-  PicoVideoFIFOSync(c);
   if (VdpFIFO.fifo_total >= 4)
     d |= SR_FULL;
   else if (!VdpFIFO.fifo_total)
-- 
2.39.5