Function DMA_PI_CopyFromRDRAM

Source/Core/DMA.cpp:313–361

//
//*****************************************************************************
void DMA_PI_CopyFromRDRAM()
{
	u32 mem_address  {Memory_PI_GetRegister(PI_DRAM_ADDR_REG) & 0xFFFFFFFF};
	u32 cart_address {Memory_PI_GetRegister(PI_CART_ADDR_REG)  & 0xFFFFFFFF};
	u32 pi_length_reg {(Memory_PI_GetRegister(PI_RD_LEN_REG)  & 0xFFFFFFFF) + 1};

#ifdef DAEDALUS_PROFILER
	DPF(DEBUG_MEMORY_PI, "PI: Copying %d bytes of data from 0x%08x to 0x%08x", pi_length_reg, mem_address, cart_address );
#endif
	/*
	if(pi_length_reg & 0x1)
	{
		DBGConsole_Msg(0, "PI Copy RDRAM to CART %db from %08X to %08X", pi_length_reg, cart_address|0xA0000000, mem_address);
		DBGConsole_Msg(0, "Warning, PI DMA, odd length");

		// Tonic Trouble triggers this !

		pi_length_reg ++;
	}
	*/

	// Only care for DOM2/ADDR2
	if(IsFlashDomAddr(cart_address))
	{
		u8 *	p_dst( (u8 *)g_pMemoryBuffers[MEM_SAVE] );
		u32		dst_size( MemoryRegionSizes[MEM_SAVE] );
		cart_address -= PI_DOM2_ADDR2;

		#ifdef DAEDALUS_DEBUG_CONSOLE
		DBGConsole_Msg(0, "[YWriting to Cart domain 2/addr2 0x%08x]", cart_address);
		#endif

		if (g_ROM.settings.SaveType != SAVE_TYPE_FLASH)
			DMA_HandleTransfer( p_dst, cart_address, dst_size, g_pu8RamBase, mem_address, gRamSize, pi_length_reg );
		else
			DMA_FLASH_CopyFromDRAM(mem_address, pi_length_reg);

		Save_MarkSaveDirty();
	}
	#ifdef DAEDALUS_DEBUG_CONSOLE
		else
		{
			DBGConsole_Msg(0, "[YUnknown PI Address 0x%08x]", cart_address);
		}
	#endif
	Memory_PI_ClrRegisterBits(PI_STATUS_REG, PI_STATUS_DMA_BUSY);
	Memory_MI_SetRegisterBits(MI_INTR_REG, MI_INTR_PI);
	R4300_Interrupt_UpdateCause3();
}