From d5c9a52337166e7962c539b20c5381aca7a8d11c Mon Sep 17 00:00:00 2001
From: Lior Halphon <LIJI32@gmail.com>
Date: Tue, 7 Feb 2017 00:24:26 +0200
Subject: [PATCH] Fixed: HDMA registers were not being updated during transfer

---
 Core/memory.c | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/Core/memory.c b/Core/memory.c
index ecc9e54..f626a59 100644
--- a/Core/memory.c
+++ b/Core/memory.c
@@ -677,6 +677,17 @@ void GB_hdma_run(GB_gameboy_t *gb)
         }
         gb->hdma_current_src += 0x10;
         gb->hdma_current_dest += 0x10;
+        
+        gb->io_registers[GB_IO_HDMA2] += 0x10;
+        if ((gb->io_registers[GB_IO_HDMA2] & 0xF0) == 0) {
+            gb->io_registers[GB_IO_HDMA1]++;
+        }
+        
+        gb->io_registers[GB_IO_HDMA4] += 0x10;
+        if ((gb->io_registers[GB_IO_HDMA4] & 0xF0) == 0) {
+            gb->io_registers[GB_IO_HDMA3]++;
+        }
+        
         if(--gb->hdma_steps_left == 0){
             gb->hdma_on = false;
             gb->hdma_on_hblank = false;
@@ -688,4 +699,4 @@ void GB_hdma_run(GB_gameboy_t *gb)
             break;
         }
     }
-}
\ No newline at end of file
+}