From c9f255b93c69b14599563b6593a3491187a15f9e Mon Sep 17 00:00:00 2001 From: retro-wertz Date: Tue, 17 Oct 2017 12:07:45 +0800 Subject: [PATCH] Mapper69: reg $D should awknowledge IRQ and no other --- src/boards/69.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/boards/69.c b/src/boards/69.c index 26831bc..f1f79a9 100644 --- a/src/boards/69.c +++ b/src/boards/69.c @@ -90,8 +90,8 @@ static DECLFW(M69Write1) { case 0xB: preg[2] = V; Sync(); break; case 0xC: mirr = V & 3; Sync();break; case 0xD: IRQa = V; X6502_IRQEnd(FCEU_IQEXT); break; - case 0xE: IRQCount &= 0xFF00; IRQCount |= V; X6502_IRQEnd(FCEU_IQEXT); break; - case 0xF: IRQCount &= 0x00FF; IRQCount |= V << 8; X6502_IRQEnd(FCEU_IQEXT); break; + case 0xE: IRQCount &= 0xFF00; IRQCount |= V; break; + case 0xF: IRQCount &= 0x00FF; IRQCount |= V << 8; break; } }