[GPU] DMA

include/PICA/gpu.hpp

@@ -47,9 +47,11 @@ class GPU {
 			u32 index = paddr - PhysicalAddrs::FCRAM;
 
 			return (T*)&fcram[index];
-		}
-		else {
-			Helpers::panic("[PICA] Pointer to unimplemented paddr %08X", paddr);
+		} else if (paddr >= PhysicalAddrs::VRAM && paddr <= PhysicalAddrs::VRAMEnd) {
+			u32 index = paddr - PhysicalAddrs::VRAM;
+			return (T*)&vram[index];
+		} else [[unlikely]] {
+			Helpers::panic("[GPU] Tried to access unknown physical address: %08X", paddr);
 		}
 	}
 
@@ -102,6 +104,7 @@ public:
 	void getGraphicsContext(); // Set up the graphics context for rendering
 	void display(); // Display the screen contents onto our window
 
+	void fireDMA(u32 dest, u32 source, u32 size);
 	void clearBuffer(u32 startAddress, u32 endAddress, u32 value, u32 control);
 	void reset();
 

include/memory.hpp

@@ -11,6 +11,8 @@
 
 namespace PhysicalAddrs {
 	enum : u32 {
+		VRAM = 0x18000000,
+		VRAMEnd = VRAM + 0x005FFFFF,
 		FCRAM = 0x20000000,
 		FCRAMEnd = FCRAM + 0x07FFFFFF
 	};
@@ -38,6 +40,7 @@ namespace VirtualAddrs {
 
 		VramStart = 0x1F000000,
 		VramSize = 0x00600000,
+		FcramTotalSize = 128_MB,
 		DSPMemStart = 0x1FF00000
 	};
 }