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AppleWin
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WOZ: Fix for 'Balance of Power' (#1022)

This commit is contained in:
tomcw 2022-08-20 12:54:14 +01:00
parent c9f5df1e1e
commit 74a664840f
1 changed files with 6 additions and 1 deletions
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7
source/Disk.cpp
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@ -326,8 +326,9 @@ void Disk2InterfaceCard::ReadTrack(const int drive, ULONG uExecutedCycles)
}
pFloppy->m_byte = (currentPosition * pFloppy->m_nibbles) / currentTrackLength; // Ref: WOZ-1.01
pFloppy->m_byte += 1; // Round-up for sensitive cross-track sync check (GH#1022)
if (pFloppy->m_byte == (pFloppy->m_nibbles-1)) // Last nibble may not be complete, so advance by 1 nibble
if (pFloppy->m_byte >= (pFloppy->m_nibbles-1)) // Last nibble may not be complete, so advance by 1 nibble
pFloppy->m_byte = 0;
pFloppy->m_bitOffset = pFloppy->m_byte*8;
@ -1239,7 +1240,11 @@ void __stdcall Disk2InterfaceCard::DataLatchReadWriteWOZ(WORD pc, WORD addr, BYT
FloppyDisk& floppy = drive.m_disk;
if (!floppy.m_trackimagedata && floppy.m_imagehandle)
{
ReadTrack(m_currDrive, uExecutedCycles);
// NB. ReadTrack() has called GetBitCellDelta(), so the subsequent call to GetBitCellDelta() below just returns bitCellDelta==0
// So could just return at this point.
}
if (!floppy.m_trackimagedata)
{