Function MemSetPaging

source/Memory.cpp:2523–2637

#endif

BYTE __stdcall MemSetPaging(WORD programcounter, WORD address, BYTE write, BYTE value, ULONG nExecutedCycles)
{
	address &= 0xFF;
	uint32_t lastmemmode = g_memmode;
#if defined(_DEBUG) && defined(DEBUG_FLIP_TIMINGS)
	DebugFlip(address, nExecutedCycles);
#endif

	// DETERMINE THE NEW MEMORY PAGING MODE.
	if (IsAppleIIeOrAbove(GetApple2Type()))
	{
		switch (address)
		{
			case 0x00: SetMemMode(g_memmode & ~MF_80STORE);    break;
			case 0x01: SetMemMode(g_memmode |  MF_80STORE);    break;
			case 0x02: SetMemMode(g_memmode & ~MF_AUXREAD);    break;
			case 0x03: SetMemMode(g_memmode |  MF_AUXREAD);    break;
			case 0x04: SetMemMode(g_memmode & ~MF_AUXWRITE);   break;
			case 0x05: SetMemMode(g_memmode |  MF_AUXWRITE);   break;
			case 0x06: SetMemMode(g_memmode & ~MF_INTCXROM);   break;
			case 0x07: SetMemMode(g_memmode |  MF_INTCXROM);   break;
			case 0x08: SetMemMode(g_memmode & ~MF_ALTZP);      break;
			case 0x09: SetMemMode(g_memmode |  MF_ALTZP);      break;
			case 0x0A: SetMemMode(g_memmode & ~MF_SLOTC3ROM);  break;
			case 0x0B: SetMemMode(g_memmode |  MF_SLOTC3ROM);  break;
			case 0x54: SetMemMode(g_memmode & ~MF_PAGE2);      break;
			case 0x55: SetMemMode(g_memmode |  MF_PAGE2);      break;
			case 0x56: SetMemMode(g_memmode & ~MF_HIRES);      break;
			case 0x57: SetMemMode(g_memmode |  MF_HIRES);      break;
#ifdef RAMWORKS
			case 0x71: // extended memory aux page number
			case 0x73: // Ramworks III set aux page number
				if ((value < g_uMaxExBanks) && RWpages[value])
				{
					g_uActiveBank = value;
					memaux = RWpages[g_uActiveBank];
					UpdatePaging(FALSE);	// Initialize=FALSE
				}
				break;
#endif
		}

		if (GetCardMgr().GetVidHDCard() && GetCardMgr().QueryAux() == CT_80Col)
		{
			// NB. if aux slot is empty, then writes already occur to memaux
			memVidHD = MemIsWriteAux(g_memmode) ? memaux : NULL;
		}
	}
	else // Apple ][,][+,][J-Plus or clone ][,][+
	{
		if (GetCardMgr().GetVidHDCard())
		{
			VidHDCard* vidHD = GetCardMgr().GetVidHDCard();
			vidHD->VideoIOWrite(programcounter, address, write, value, nExecutedCycles);
			memVidHD = vidHD->IsWriteAux() ? memaux : NULL;
		}
	}