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Add comment for the reason that reset doesn't affect memmode & videomode for II and II+ models.

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Add accessor for memmode, make static and replace extern refs with GetMemMode().
This commit is contained in:
tomcw 2018-03-19 18:49:08 -07:00
parent 8dcc5d50ca
commit d7de4908cd
4 changed files with 28 additions and 14 deletions
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12
source/Debugger/Debugger_Display.cpp
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@ -2794,7 +2794,7 @@ void _DrawTriStateSoftSwitch( RECT & rect, int nAddress, int iDisplay, int iActi
else // Main Memory is active, or Bank # is not active
{
RECT temp = rect;
int iBank = (memmode & MF_BANK2)
int iBank = (GetMemMode() & MF_BANK2)
? 2
: 1
;
@ -2858,9 +2858,9 @@ void _DrawSoftSwitchLanguageCardBank( RECT & rect, int iBankDisplay, int bg_defa
// 0 = RAM
// 1 = Bank 1
// 2 = Bank 2
bool bBankWritable = (memmode & MF_WRITERAM) ? 1 : 0;
int iBankActive = (memmode & MF_HIGHRAM)
? (memmode & MF_BANK2)
bool bBankWritable = (GetMemMode() & MF_WRITERAM) ? 1 : 0;
int iBankActive = (GetMemMode() & MF_HIGHRAM)
? (GetMemMode() & MF_BANK2)
? 2
: 1
: 0
@ -2959,8 +2959,8 @@ void _DrawSoftSwitchMainAuxBanks( RECT & rect, int bg_default = BG_INFO )
int dx = 7 * w;
int nAddress = 0xC002;
bool bMainRead = (memmode & MF_AUXREAD) ? true : false;
bool bAuxWrite = (memmode & MF_AUXWRITE) ? true : false;
bool bMainRead = (GetMemMode() & MF_AUXREAD) ? true : false;
bool bAuxWrite = (GetMemMode() & MF_AUXWRITE) ? true : false;
temp.right = rect.left + dx;
_DrawSoftSwitch( temp, nAddress, !bMainRead, "R", "m", "x", NULL, BG_DATA_2 );

16
source/Frame.cpp
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@ -2174,19 +2174,27 @@ void ResetMachineState ()
//===========================================================================
/*
* In comments, UTAII is an abbreviation for a reference to "Understanding the Apple II" by James Sather
*/
// todo: consolidate CtrlReset() and ResetMachineState()
// Ctrl+Reset - TODO: This is a terrible place for this code! Should be in AppleWin.cpp
void CtrlReset()
{
// Ctrl+Reset - TODO: This is a terrible place for this code!
if (!IS_APPLE2) // TODO: Why not for A][ & A][+ too?
if (!IS_APPLE2)
{
// For A][ & A][+, reset doesn't reset the LC switches (UTAII:5-29)
MemResetPaging();
// For A][ & A][+, reset doesn't reset the video mode (UTAII:4-4)
VideoResetState(); // Switch Alternate char set off
}
PravetsReset();
DiskReset();
HD_Reset();
KeybReset();
if (!IS_APPLE2) // TODO: Why not for A][ & A][+ too?
VideoResetState(); // Switch Alternate char set off
sg_SSC.CommReset();
MB_Reset();
sg_Mouse.Reset(); // Deassert any pending IRQs - GH#514

12
source/Memory.cpp
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@ -178,7 +178,8 @@ static LPBYTE memimage = NULL;
static LPBYTE pCxRomInternal = NULL;
static LPBYTE pCxRomPeripheral = NULL;
DWORD memmode = MF_BANK2 | MF_SLOTCXROM | MF_WRITERAM; // 2.9.0.4 now global as Debugger needs access for LC status info in DrawSoftSwitches()
static const DWORD kMemModeInitialState = MF_BANK2 | MF_SLOTCXROM | MF_WRITERAM;
static DWORD memmode = kMemModeInitialState;
static BOOL modechanging = 0; // An Optimisation: means delay calling UpdatePaging() for 1 instruction
static BOOL Pravets8charmode = 0;
@ -824,6 +825,11 @@ static void BackMainImage(void)
//===========================================================================
DWORD GetMemMode(void)
{
return memmode;
}
static void SetMemMode(const DWORD uNewMemMode)
{
#if defined(_DEBUG) && 0
@ -860,7 +866,7 @@ static void ResetPaging(BOOL initialize);
static void UpdatePaging(BOOL initialize);
// Call by:
// . CtrlReset() Soft-reset (Ctrl+Reset)
// . CtrlReset() Soft-reset (Ctrl+Reset) for //e
void MemResetPaging()
{
ResetPaging(0); // Initialize=0
@ -869,7 +875,7 @@ void MemResetPaging()
static void ResetPaging(BOOL initialize)
{
g_bLastWriteRam = 0;
SetMemMode(MF_BANK2 | MF_SLOTCXROM | MF_WRITERAM);
SetMemMode(kMemModeInitialState);
UpdatePaging(initialize);
}

2
source/Memory.h
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@ -56,7 +56,6 @@ extern iofunction IOWrite[256];
extern LPBYTE memwrite[0x100];
extern LPBYTE mem;
extern LPBYTE memdirty;
extern DWORD memmode;
#ifdef RAMWORKS
const UINT kMaxExMemoryBanks = 127; // 127 * aux mem(64K) + main mem(64K) = 8MB
@ -78,6 +77,7 @@ LPBYTE MemGetAuxPtr(const WORD);
LPBYTE MemGetMainPtr(const WORD);
LPBYTE MemGetBankPtr(const UINT nBank);
LPBYTE MemGetCxRomPeripheral();
DWORD GetMemMode(void);
bool MemIsAddrCodeMemory(const USHORT addr);
void MemInitialize ();
void MemInitializeROM(void);