From: kub <derkub@gmail.com>
Date: Fri, 22 Apr 2022 18:50:20 +0000 (+0200)
Subject: core vdp, fix status reading synchronisation
X-Git-Tag: v2.00~309
X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=72c2a04a9d4ae0fe52383dbf4d680849036b48a1;p=picodrive.git

core vdp, fix status reading synchronisation
---

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)