From 59e61c31ea4f7daef3692a890f8702b7494df683 Mon Sep 17 00:00:00 2001
From: Jeffrey Pfau <jeffrey@endrift.com>
Date: Sun, 25 Sep 2016 16:48:41 -0700
Subject: [PATCH] GB, GBA: Fix emulator hardlocking when halting with IRQs off

---
 CHANGES       | 1 +
 src/gb/gb.c   | 3 +++
 src/gba/gba.c | 3 +++
 3 files changed, 7 insertions(+)

diff --git a/CHANGES b/CHANGES
index 21b506249..c89446be9 100644
--- a/CHANGES
+++ b/CHANGES
@@ -16,6 +16,7 @@ Bugfixes:
  - Core: Fix importing save games as read-only
  - Util: Fix PNG identification on files too small to be a PNG
  - GB: Fix invalid STOP behavior on Game Boy Color
+ - GB, GBA: Fix emulator hardlocking when halting with IRQs off
 Misc:
  - All: Only update version info if needed
  - FFmpeg: Encoding cleanup
diff --git a/src/gb/gb.c b/src/gb/gb.c
index 545d64481..59000fd4b 100644
--- a/src/gb/gb.c
+++ b/src/gb/gb.c
@@ -537,6 +537,9 @@ void GBProcessEvents(struct LR35902Core* cpu) {
 
 		if (cpu->halted) {
 			cpu->cycles = cpu->nextEvent;
+			if (!gb->memory.ie || !gb->memory.ime) {
+				break;
+			}
 		}
 	} while (cpu->cycles >= cpu->nextEvent);
 }
diff --git a/src/gba/gba.c b/src/gba/gba.c
index a39ba72cd..e0ebad00c 100644
--- a/src/gba/gba.c
+++ b/src/gba/gba.c
@@ -287,6 +287,9 @@ static void GBAProcessEvents(struct ARMCore* cpu) {
 
 		if (cpu->halted) {
 			cpu->cycles = cpu->nextEvent;
+			if (!gba->memory.io[REG_IME >> 1] || !gba->memory.io[REG_IE >> 1]) {
+				break;
+			}
 		}
 		if (nextEvent == 0) {
 			break;