WOZ: Extended latch delay for 'Wizardry III' and 'Space Quest I' copy-protection (#662, #669)

2019-07-22 19:32:25 +01:00 · 2019-07-22 19:32:25 +01:00 · c03eb54103
parent f073153c64
commit c03eb54103
1 changed files with 1 additions and 2 deletions
--- a/source/Disk.cpp
+++ b/source/Disk.cpp
@ -1151,8 +1151,7 @@ void __stdcall Disk2InterfaceCard::ReadWriteWOZ(WORD pc, WORD addr, BYTE bWrite,
 				}
 				else // m_shiftReg==0
 				{
-					if (m_latchDelay == 0)
-						m_latchDelay = 4;	// extend for another 4us
+					m_latchDelay += 4;	// extend by 4us (so 7us again) - GH#662

 					m_dbgLatchDelayedCnt++;
 #if LOG_DISK_NIBBLES_READ