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fixed a bug where the combination of RAM banks and PlusROM would break a game (this should fix #1058)

This commit is contained in:
thrust26 2024-12-30 12:41:01 +01:00
parent 907f687184
commit 86a5454f1a
2 changed files with 5 additions and 1 deletions
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4
Changes.txt
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@ -16,6 +16,10 @@
* Added developer option for disabling PlusROM support (TODO: Doc) * Added developer option for disabling PlusROM support (TODO: Doc)
* Enhanced PAL-60 detection, searches for signature (e.g. PAL60) in ROM
* Enhanced VSYNC emulation, considers VBLANK now too
6.7.1 to 7.0 (October 5, 2024) 6.7.1 to 7.0 (October 5, 2024)
* Enhanced ROM launcher to allow multiple images per ROM. * Enhanced ROM launcher to allow multiple images per ROM.

2
src/emucore/CartEnhanced.cxx
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@ -176,7 +176,7 @@ uInt8 CartridgeEnhanced::peek(uInt16 address)
address &= ROM_MASK; address &= ROM_MASK;
// Write port is e.g. at 0xF000 - 0xF07F (128 bytes) // Write port is e.g. at 0xF000 - 0xF07F (128 bytes)
if(address >= myWriteOffset && address < myWriteOffset + myRamSize) if(!myRamBankCount && address >= myWriteOffset && address < myWriteOffset + myRamSize)
{ {
// This is a read access to a write port! // This is a read access to a write port!
// Reading from the write port triggers an unwanted write // Reading from the write port triggers an unwanted write