AppleWin/source/LanguageCard.h

106 lines
3.1 KiB
C
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#pragma once
#include "Card.h"
//
// Language Card (base unit) for Apple //e and above
//
class LanguageCardUnit : public Card
{
public:
// in modern C++ this could be a 2nd constructor
static LanguageCardUnit * create(UINT slot);
virtual ~LanguageCardUnit(void);
virtual void Destroy(void) {}
virtual void Reset(const bool powerCycle) {}
virtual void Update(const ULONG nExecutedCycles) {}
virtual void InitializeIO(LPBYTE pCxRomPeripheral);
virtual UINT GetActiveBank(void) { return 0; } // Always 0 as only 1x 16K bank
virtual void SaveSnapshot(YamlSaveHelper& yamlSaveHelper) { } // A no-op for //e - called from CardManager::SaveSnapshot()
virtual bool LoadSnapshot(YamlLoadHelper& yamlLoadHelper, UINT version) { _ASSERT(0); return false; } // Not used for //e
BOOL GetLastRamWrite(void) { return m_uLastRamWrite; }
void SetLastRamWrite(BOOL count) { m_uLastRamWrite = count; }
SS_CARDTYPE GetMemoryType(void) { return QueryType(); }
bool IsOpcodeRMWabs(WORD addr);
static BYTE __stdcall IO(WORD PC, WORD uAddr, BYTE bWrite, BYTE uValue, ULONG nExecutedCycles);
static const UINT kMemModeInitialState;
static const UINT kSlot0 = SLOT0;
protected:
LanguageCardUnit(SS_CARDTYPE type, UINT slot);
private:
UINT m_uLastRamWrite;
};
//
// Language Card (slot-0) for Apple II or II+
//
class LanguageCardSlot0 : public LanguageCardUnit
{
public:
// in modern C++ this could be a 2nd constructor
static LanguageCardSlot0 * create(UINT slot);
virtual ~LanguageCardSlot0(void);
virtual void SaveSnapshot(YamlSaveHelper& yamlSaveHelper);
virtual bool LoadSnapshot(YamlLoadHelper& yamlLoadHelper, UINT version);
static const UINT kMemBankSize = 16*1024;
static const std::string& GetSnapshotCardName(void);
protected:
LanguageCardSlot0(SS_CARDTYPE type, UINT slot);
void SaveLCState(class YamlSaveHelper& yamlSaveHelper);
void LoadLCState(class YamlLoadHelper& yamlLoadHelper);
LPBYTE m_pMemory;
private:
const std::string& GetSnapshotMemStructName(void);
};
//
// Saturn 128K
//
class Saturn128K : public LanguageCardSlot0
{
public:
Saturn128K(UINT slot, UINT banks);
virtual ~Saturn128K(void);
virtual void InitializeIO(LPBYTE pCxRomPeripheral);
virtual UINT GetActiveBank(void);
virtual void SaveSnapshot(YamlSaveHelper& yamlSaveHelper);
virtual bool LoadSnapshot(YamlLoadHelper& yamlLoadHelper, UINT version);
static UINT GetSaturnMemorySize();
static void SetSaturnMemorySize(UINT banks);
static BYTE __stdcall IO(WORD PC, WORD uAddr, BYTE bWrite, BYTE uValue, ULONG nExecutedCycles);
// "The boards consist of 16K banks of memory (4 banks for the 64K board, 8 banks for the 128K), accessed one at a time" - Ref: "64K/128K RAM BOARD", Saturn Systems, Ch.1 Introduction(pg-5)
static const UINT kMaxSaturnBanks = 8; // 8 * 16K = 128K
static const std::string& GetSnapshotCardName(void);
private:
const std::string& GetSnapshotMemStructName(void);
static UINT g_uSaturnBanksFromCmdLine;
UINT m_uSaturnTotalBanks; // Will be > 0 if Saturn card is installed
UINT m_uSaturnActiveBank; // Saturn 128K Language Card Bank 0 .. 7
LPBYTE m_aSaturnBanks[kMaxSaturnBanks];
};