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initial commit (removed directPeek/PokeBase)

This commit is contained in:
thrust26 2021-01-16 10:23:01 +01:00
parent d9c8750d01
commit 6b900f2ba0
5 changed files with 43 additions and 43 deletions
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14
src/emucore/CartCM.cxx
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@ -119,7 +119,7 @@ bool CartridgeCM::bank(uInt16 bank, uInt16)
// Lower 2K (always ROM)
for(uInt16 addr = 0x1000; addr < 0x1800; addr += System::PAGE_SIZE)
{
access.directPeekBase = &myImage[myBankOffset + (addr & 0x0FFF)];
//access.directPeekBase = &myImage[myBankOffset + (addr & 0x0FFF)];
access.romAccessBase = &myRomAccessBase[myBankOffset + (addr & 0x0FFF)];
access.romPeekCounter = &myRomAccessCounter[myBankOffset + (addr & 0x0FFF)];
access.romPokeCounter = &myRomAccessCounter[myBankOffset + (addr & 0x0FFF) + myAccessSize];
@ -133,23 +133,23 @@ bool CartridgeCM::bank(uInt16 bank, uInt16)
if(mySWCHA & 0x10)
{
access.directPeekBase = &myImage[myBankOffset + (addr & 0x0FFF)];
//access.directPeekBase = &myImage[myBankOffset + (addr & 0x0FFF)];
access.romAccessBase = &myRomAccessBase[myBankOffset + (addr & 0x0FFF)];
access.romPeekCounter = &myRomAccessCounter[myBankOffset + (addr & 0x0FFF)];
access.romPokeCounter = &myRomAccessCounter[myBankOffset + (addr & 0x0FFF) + myAccessSize];
}
else
{
access.directPeekBase = &myRAM[addr & 0x7FF];
//access.directPeekBase = &myRAM[addr & 0x7FF];
access.romAccessBase = &myRomAccessBase[myBankOffset + (addr & 0x07FF)];
access.romPeekCounter = &myRomAccessCounter[myBankOffset + (addr & 0x07FF)];
access.romPokeCounter = &myRomAccessCounter[myBankOffset + (addr & 0x07FF) + myAccessSize];
}
if((mySWCHA & 0x30) == 0x20)
access.directPokeBase = &myRAM[addr & 0x7FF];
else
access.directPokeBase = nullptr;
//if((mySWCHA & 0x30) == 0x20)
// access.directPokeBase = &myRAM[addr & 0x7FF];
//else
// access.directPokeBase = nullptr;
mySystem->setPageAccess(addr, access);
}

12
src/emucore/CartEnhanced.cxx
View File

@ -118,7 +118,7 @@ void CartridgeEnhanced::install(System& system)
{
const uInt16 offset = addr & myRamMask;
access.directPeekBase = &myRAM[offset];
//access.directPeekBase = &myRAM[offset];
access.romAccessBase = &myRomAccessBase[myReadOffset + offset];
access.romPeekCounter = &myRomAccessCounter[myReadOffset + offset];
access.romPokeCounter = &myRomAccessCounter[myReadOffset + offset + myAccessSize];
@ -264,10 +264,10 @@ bool CartridgeEnhanced::bank(uInt16 bank, uInt16 segment)
{
const uInt32 offset = bankOffset + (addr & myBankMask);
if(myDirectPeek && addr != hotSpotAddr)
access.directPeekBase = &myImage[offset];
else
access.directPeekBase = nullptr;
//if(myDirectPeek && addr != hotSpotAddr)
// access.directPeekBase = &myImage[offset];
//else
// access.directPeekBase = nullptr;
access.romAccessBase = &myRomAccessBase[offset];
access.romPeekCounter = &myRomAccessCounter[offset];
access.romPokeCounter = &myRomAccessCounter[offset + myAccessSize];
@ -309,7 +309,7 @@ bool CartridgeEnhanced::bank(uInt16 bank, uInt16 segment)
{
const uInt32 offset = bankOffset + (addr & myRamMask);
access.directPeekBase = &myRAM[offset - mySize];
//access.directPeekBase = &myRAM[offset - mySize];
access.romAccessBase = &myRomAccessBase[offset];
access.romPeekCounter = &myRomAccessCounter[offset];
access.romPokeCounter = &myRomAccessCounter[offset + myAccessSize];

8
src/emucore/CartMNetwork.cxx
View File

@ -66,10 +66,10 @@ void CartridgeMNetwork::setAccess(uInt16 addrFrom, uInt16 size,
for(uInt16 addr = addrFrom; addr < addrFrom + size; addr += System::PAGE_SIZE)
{
if(type == System::PageAccessType::READ)
access.directPeekBase = &directData[directOffset + (addr & addrMask)];
else if(type == System::PageAccessType::WRITE) // all RAM writes mapped to ::poke()
access.directPokeBase = nullptr;
//if(type == System::PageAccessType::READ)
// access.directPeekBase = &directData[directOffset + (addr & addrMask)];
//else if(type == System::PageAccessType::WRITE) // all RAM writes mapped to ::poke()
// access.directPokeBase = nullptr;
access.romAccessBase = &myRomAccessBase[codeOffset + (addr & addrMask)];
access.romPeekCounter = &myRomAccessCounter[codeOffset + (addr & addrMask)];
access.romPokeCounter = &myRomAccessCounter[codeOffset + (addr & addrMask) + myAccessSize];

24
src/emucore/System.cxx
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@ -121,9 +121,9 @@ uInt8 System::peek(uInt16 addr, Device::AccessFlags flags)
// See if this page uses direct accessing or not
uInt8 result;
if(access.directPeekBase)
result = *(access.directPeekBase + (addr & PAGE_MASK));
else
//if(access.directPeekBase)
// result = *(access.directPeekBase + (addr & PAGE_MASK));
//else
result = access.device->peek(addr);
#ifdef DEBUGGER_SUPPORT
@ -157,17 +157,17 @@ void System::poke(uInt16 addr, uInt8 value, Device::AccessFlags flags)
#endif
// See if this page uses direct accessing or not
if(access.directPokeBase)
{
// Since we have direct access to this poke, we can dirty its page
*(access.directPokeBase + (addr & PAGE_MASK)) = value;
myPageIsDirtyTable[page] = true;
}
else
{
//if(access.directPokeBase)
//{
// // Since we have direct access to this poke, we can dirty its page
// *(access.directPokeBase + (addr & PAGE_MASK)) = value;
// myPageIsDirtyTable[page] = true;
//}
//else
//{
// The specific device informs us if the poke succeeded
myPageIsDirtyTable[page] = access.device->poke(addr, value);
}
//}
#ifdef DEBUGGER_SUPPORT
if(!myDataBusLocked)

28
src/emucore/System.hxx
View File

@ -240,21 +240,21 @@ class System : public Serializable
*/
struct PageAccess
{
/**
Pointer to a block of memory or the null pointer. The null pointer
indicates that the device's peek method should be invoked for reads
to this page, while other values are the base address of an array
to directly access for reads to this page.
*/
uInt8* directPeekBase{nullptr};
///**
// Pointer to a block of memory or the null pointer. The null pointer
// indicates that the device's peek method should be invoked for reads
// to this page, while other values are the base address of an array
// to directly access for reads to this page.
//*/
//uInt8* directPeekBase{nullptr};
/**
Pointer to a block of memory or the null pointer. The null pointer
indicates that the device's poke method should be invoked for writes
to this page, while other values are the base address of an array
to directly access for pokes to this page.
*/
uInt8* directPokeBase{nullptr};
///**
// Pointer to a block of memory or the null pointer. The null pointer
// indicates that the device's poke method should be invoked for writes
// to this page, while other values are the base address of an array
// to directly access for pokes to this page.
//*/
//uInt8* directPokeBase{nullptr};
/**
Pointer to a lookup table for marking an address as CODE, DATA, GFX,