From: kub <derkub@gmail.com>
Date: Sat, 27 Apr 2024 07:44:43 +0000 (+0200)
Subject: core vdp, fix regression (irq not cleared on disable)
X-Git-Tag: v2.00~70
X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b8a38093edd3e63ea8704698c6a3eefdebe64939;p=picodrive.git

core vdp, fix regression (irq not cleared on disable)
---

diff --git a/pico/videoport.c b/pico/videoport.c
index b4d67677..7ed3092f 100644
--- a/pico/videoport.c
+++ b/pico/videoport.c
@@ -999,18 +999,22 @@ PICO_INTERNAL_ASM void PicoVideoWrite(u32 a,unsigned short d)
 update_irq:
 #ifndef EMU_CORE_DEBUG
         // update IRQ level
-        if (!SekShouldInterrupt()) // hack
         {
           int lines, pints, irq = 0;
           lines = (pvid->reg[1] & 0x20) | (pvid->reg[0] & 0x10);
           pints = pvid->pending_ints & lines;
                if (pints & 0x20) irq = 6;
           else if (pints & 0x10) irq = pvid->hint_irq;
-          if (SekIrqLevel < irq)
+          if (irq) {
+            // VDP irqs have highest prio, overwrite old level
             SekInterrupt(irq); // update line
 
-          // this is broken because cost of current insn isn't known here
-          if (irq) SekEndRun(21); // make it delayed
+            // this is broken because cost of current insn isn't known here
+            SekEndRun(21); // make it delayed
+          } else if (SekIrqLevel >= pvid->hint_irq) {
+            // no VDP irq, query lower irqs
+            SekInterrupt(PicoPicoIrqAck(0));
+          }
         }
 #endif
       }