mirror of https://github.com/stella-emu/stella.git
Revert "initial commit (removed directPeek/PokeBase)"
This reverts commit 6b900f2ba0
.
This commit is contained in:
parent
894f70a5a8
commit
3ab3156985
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@ -119,7 +119,7 @@ bool CartridgeCM::bank(uInt16 bank, uInt16)
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// Lower 2K (always ROM)
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for(uInt16 addr = 0x1000; addr < 0x1800; addr += System::PAGE_SIZE)
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{
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//access.directPeekBase = &myImage[myBankOffset + (addr & 0x0FFF)];
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access.directPeekBase = &myImage[myBankOffset + (addr & 0x0FFF)];
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access.romAccessBase = &myRomAccessBase[myBankOffset + (addr & 0x0FFF)];
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access.romPeekCounter = &myRomAccessCounter[myBankOffset + (addr & 0x0FFF)];
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access.romPokeCounter = &myRomAccessCounter[myBankOffset + (addr & 0x0FFF) + myAccessSize];
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@ -133,23 +133,23 @@ bool CartridgeCM::bank(uInt16 bank, uInt16)
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if(mySWCHA & 0x10)
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{
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//access.directPeekBase = &myImage[myBankOffset + (addr & 0x0FFF)];
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access.directPeekBase = &myImage[myBankOffset + (addr & 0x0FFF)];
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access.romAccessBase = &myRomAccessBase[myBankOffset + (addr & 0x0FFF)];
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access.romPeekCounter = &myRomAccessCounter[myBankOffset + (addr & 0x0FFF)];
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access.romPokeCounter = &myRomAccessCounter[myBankOffset + (addr & 0x0FFF) + myAccessSize];
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}
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else
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{
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//access.directPeekBase = &myRAM[addr & 0x7FF];
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access.directPeekBase = &myRAM[addr & 0x7FF];
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access.romAccessBase = &myRomAccessBase[myBankOffset + (addr & 0x07FF)];
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access.romPeekCounter = &myRomAccessCounter[myBankOffset + (addr & 0x07FF)];
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access.romPokeCounter = &myRomAccessCounter[myBankOffset + (addr & 0x07FF) + myAccessSize];
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}
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//if((mySWCHA & 0x30) == 0x20)
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// access.directPokeBase = &myRAM[addr & 0x7FF];
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//else
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// access.directPokeBase = nullptr;
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if((mySWCHA & 0x30) == 0x20)
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access.directPokeBase = &myRAM[addr & 0x7FF];
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else
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access.directPokeBase = nullptr;
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mySystem->setPageAccess(addr, access);
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}
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@ -118,7 +118,7 @@ void CartridgeEnhanced::install(System& system)
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{
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const uInt16 offset = addr & myRamMask;
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//access.directPeekBase = &myRAM[offset];
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access.directPeekBase = &myRAM[offset];
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access.romAccessBase = &myRomAccessBase[myReadOffset + offset];
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access.romPeekCounter = &myRomAccessCounter[myReadOffset + offset];
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access.romPokeCounter = &myRomAccessCounter[myReadOffset + offset + myAccessSize];
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@ -264,10 +264,10 @@ bool CartridgeEnhanced::bank(uInt16 bank, uInt16 segment)
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{
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const uInt32 offset = bankOffset + (addr & myBankMask);
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//if(myDirectPeek && addr != hotSpotAddr)
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// access.directPeekBase = &myImage[offset];
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//else
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// access.directPeekBase = nullptr;
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if(myDirectPeek && addr != hotSpotAddr)
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access.directPeekBase = &myImage[offset];
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else
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access.directPeekBase = nullptr;
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access.romAccessBase = &myRomAccessBase[offset];
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access.romPeekCounter = &myRomAccessCounter[offset];
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access.romPokeCounter = &myRomAccessCounter[offset + myAccessSize];
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@ -309,7 +309,7 @@ bool CartridgeEnhanced::bank(uInt16 bank, uInt16 segment)
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{
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const uInt32 offset = bankOffset + (addr & myRamMask);
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//access.directPeekBase = &myRAM[offset - mySize];
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access.directPeekBase = &myRAM[offset - mySize];
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access.romAccessBase = &myRomAccessBase[offset];
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access.romPeekCounter = &myRomAccessCounter[offset];
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access.romPokeCounter = &myRomAccessCounter[offset + myAccessSize];
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@ -66,10 +66,10 @@ void CartridgeMNetwork::setAccess(uInt16 addrFrom, uInt16 size,
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for(uInt16 addr = addrFrom; addr < addrFrom + size; addr += System::PAGE_SIZE)
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{
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//if(type == System::PageAccessType::READ)
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// access.directPeekBase = &directData[directOffset + (addr & addrMask)];
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//else if(type == System::PageAccessType::WRITE) // all RAM writes mapped to ::poke()
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// access.directPokeBase = nullptr;
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if(type == System::PageAccessType::READ)
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access.directPeekBase = &directData[directOffset + (addr & addrMask)];
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else if(type == System::PageAccessType::WRITE) // all RAM writes mapped to ::poke()
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access.directPokeBase = nullptr;
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access.romAccessBase = &myRomAccessBase[codeOffset + (addr & addrMask)];
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access.romPeekCounter = &myRomAccessCounter[codeOffset + (addr & addrMask)];
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access.romPokeCounter = &myRomAccessCounter[codeOffset + (addr & addrMask) + myAccessSize];
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@ -121,9 +121,9 @@ uInt8 System::peek(uInt16 addr, Device::AccessFlags flags)
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// See if this page uses direct accessing or not
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uInt8 result;
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//if(access.directPeekBase)
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// result = *(access.directPeekBase + (addr & PAGE_MASK));
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//else
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if(access.directPeekBase)
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result = *(access.directPeekBase + (addr & PAGE_MASK));
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else
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result = access.device->peek(addr);
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#ifdef DEBUGGER_SUPPORT
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@ -157,17 +157,17 @@ void System::poke(uInt16 addr, uInt8 value, Device::AccessFlags flags)
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#endif
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// See if this page uses direct accessing or not
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//if(access.directPokeBase)
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//{
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// // Since we have direct access to this poke, we can dirty its page
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// *(access.directPokeBase + (addr & PAGE_MASK)) = value;
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// myPageIsDirtyTable[page] = true;
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//}
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//else
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//{
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if(access.directPokeBase)
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{
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// Since we have direct access to this poke, we can dirty its page
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*(access.directPokeBase + (addr & PAGE_MASK)) = value;
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myPageIsDirtyTable[page] = true;
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}
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else
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{
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// The specific device informs us if the poke succeeded
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myPageIsDirtyTable[page] = access.device->poke(addr, value);
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//}
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}
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#ifdef DEBUGGER_SUPPORT
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if(!myDataBusLocked)
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@ -240,21 +240,21 @@ class System : public Serializable
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*/
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struct PageAccess
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{
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///**
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// Pointer to a block of memory or the null pointer. The null pointer
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// indicates that the device's peek method should be invoked for reads
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// to this page, while other values are the base address of an array
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// to directly access for reads to this page.
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//*/
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//uInt8* directPeekBase{nullptr};
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/**
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Pointer to a block of memory or the null pointer. The null pointer
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indicates that the device's peek method should be invoked for reads
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to this page, while other values are the base address of an array
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to directly access for reads to this page.
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*/
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uInt8* directPeekBase{nullptr};
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///**
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// Pointer to a block of memory or the null pointer. The null pointer
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// indicates that the device's poke method should be invoked for writes
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// to this page, while other values are the base address of an array
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// to directly access for pokes to this page.
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//*/
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//uInt8* directPokeBase{nullptr};
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/**
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Pointer to a block of memory or the null pointer. The null pointer
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indicates that the device's poke method should be invoked for writes
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to this page, while other values are the base address of an array
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to directly access for pokes to this page.
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*/
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uInt8* directPokeBase{nullptr};
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/**
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Pointer to a lookup table for marking an address as CODE, DATA, GFX,
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