Function MemIsAddrCodeMemory

source/Memory.cpp:1815–1846

Post: . true: code memory . false: I/O memory or floating bus

// . true:  code memory
// . false: I/O memory or floating bus
bool MemIsAddrCodeMemory(const USHORT addr)
{
	if (addr < APPLE_IO_BEGIN || addr > FIRMWARE_EXPANSION_END)	// Assume all A][ types have at least 48K
		return true;

	if (addr < APPLE_SLOT_BEGIN)		// [$C000..C0FF]
		return false;

	if (!IS_APPLE2 && SW_INTCXROM)		// [$C100..C7FF] //e or Enhanced //e internal ROM
		return true;

	if (!IS_APPLE2 && !SW_SLOTC3ROM && (addr >> 8) == 0xC3)	// [$C300..C3FF] //e or Enhanced //e internal ROM
		return true;

	if (addr <= APPLE_SLOT_END)			// [$C100..C7FF]
	{
		UINT slot = (addr >> 8) & 0x7;
		return IsCardInSlot(slot);
	}

	// [$C800..CFFF]

	if (g_eExpansionRomType == eExpRomNull)
	{
		if (IO_SELECT || INTC8ROM)	// Was at $Csxx and now in [$C800..$CFFF]
			return true;

		return false;
	}

	return true;
}

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