From 564f1dcb3965ea0fe5294b69acfc94e0fee32de9 Mon Sep 17 00:00:00 2001
From: Michel Heily <michelheily@gmail.com>
Date: Wed, 20 May 2020 19:54:27 +0300
Subject: [PATCH] bugfix: Properly handle VCOUNT interrupt edge case for line
 227.

fixes #97


Former-commit-id: 6e1cd347e82edfd6eca2b89e6e2a86e68e39d580
Former-commit-id: e9aeb8cc4dd503cfb3da4552e5618de5e982039b
---
 rustboyadvance-core/src/gpu/mod.rs | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/rustboyadvance-core/src/gpu/mod.rs b/rustboyadvance-core/src/gpu/mod.rs
index 4f1e5fd..be0c762 100644
--- a/rustboyadvance-core/src/gpu/mod.rs
+++ b/rustboyadvance-core/src/gpu/mod.rs
@@ -496,9 +496,8 @@ impl Gpu {
                 };
             }
             VBlankHBlank => {
-                self.update_vcount(self.vcount + 1, irqs);
-
                 if self.vcount < DISPLAY_HEIGHT + VBLANK_LINES - 1 {
+                    self.update_vcount(self.vcount + 1, irqs);
                     self.dispstat.set_hblank_flag(false);
                     self.cycles_left_for_current_state = CYCLES_HDRAW;
                     self.state = VBlankHDraw;