From 92e16d436e14f132e0857ceaf77dd7573f9c7a10 Mon Sep 17 00:00:00 2001
From: Flyinghead <raphael.jean@gmail.com>
Date: Tue, 10 Jul 2018 12:07:35 +0200
Subject: [PATCH] PVR DMA: VRAM->System RAM transfer was handled the other way
 around

---
 core/hw/pvr/pvr_sb_regs.cpp | 15 ++++-----------
 1 file changed, 4 insertions(+), 11 deletions(-)

diff --git a/core/hw/pvr/pvr_sb_regs.cpp b/core/hw/pvr/pvr_sb_regs.cpp
index bb7b1a59d..f8653f86a 100644
--- a/core/hw/pvr/pvr_sb_regs.cpp
+++ b/core/hw/pvr/pvr_sb_regs.cpp
@@ -28,8 +28,8 @@ void do_pvr_dma()
 	u32 dmaor  = DMAC_DMAOR.full;
 	u32 dmatcr = DMAC_DMATCR(0);
 
-	u32 src = SB_PDSTAR;
-	u32 dst = SB_PDSTAP;
+	u32 src = SB_PDSTAR;	// System RAM address
+	u32 dst = SB_PDSTAP;	// VRAM address
 	u32 len = SB_PDLEN;
 
 	if(0x8201 != (dmaor &DMAOR_MASK))
@@ -47,18 +47,11 @@ void do_pvr_dma()
 	if (SB_PDDIR)
 	{
 		//PVR -> System
-/*		for (u32 i=0;i<len;i+=4)
-		{
-			u32 temp=ReadMem32_nommu(dst+i);
-			WriteMem32_nommu(src+i,temp);
-		}*/
-		WriteMemBlock_nommu_dma(dst,src,len);
+		WriteMemBlock_nommu_dma(src, dst, len);
 	}
 	else
 	{
 		//System -> PVR
-		//TODO : FIX THAT , to warp around on dmas :)
-		//WriteMemBlock_nommu_ptr(dst,(u32*)GetMemPtr(src,len),len);
 		WriteMemBlock_nommu_dma(dst,src,len);
 	}
 
@@ -153,4 +146,4 @@ void pvr_sb_Term()
 //Reset -> Reset - Initialise
 void pvr_sb_Reset(bool Manual)
 {
-}
\ No newline at end of file
+}