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< title > Clock< / title >
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Clock< / h2 >
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< h3 > Clock:< / h3 >
< p > AppleWin emulates a No-Slot clock (aka NSC).< / p >
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< p > This is a chip (a Dallas SmartWatch DS1216) that sits under one of the 28-pin (or 24-pin) ROM chips in the Apple II.< br >
No hardware configuration is required: this chip is always present (unless -no-nsc is used), but won't interfere with system operation when not in use.
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< / p >
< p > It requires a software driver to be installed (for DOS and ProDOS). This driver then emulates the Thunderclock card.< / p >
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< br >
< p > For the < strong > Apple //e< / strong > , here's a summary of NSC/ROM chip locations and which drivers work:< / p >
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< ul >
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< li > "CD" ROM socket: $C000-DFFF (internal) ROM space - all drivers work< / li >
< li > "EF" ROM socket: $E000-FFFF ROM space - never seen any drivers use this space< / li >
< li > "CF" ROM socket: $C000-FFFF (internal) ROM space - all drivers work< / li >
< li > Slot ROM socket: $Cs00-CsFF (slot) ROM space - NS.CLOCK.SYSTEM works< / li >
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< p > Here are the drivers and ROM pages they check:< / p >
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< li > ProDOS "SWU.SYSTEM" - internal C3< / li >
< li > ProDOS "NS.CLOCK.SYSTEM" - internal C3 C8 / external C1-C7< / li >
< li > GEOS "NoSlot Clock" - internal C8< / li >
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< li > ProDOS-8 v2.5.0 "NoSlotClk.IIe" - internal C3 (currently 65C02 only)< / li >
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< br >
< p > For the < strong > Apple II/II+< / strong > , here's a summary of NSC/ROM chip locations and driver information:< / p >
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< li > "F8" ROM socket: $F800-FFFF (internal) ROM space - ProDOS-8 v2.5.0a8 (not currently working)< / li >
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< p > Here are the drivers and ROM pages they check:< / p >
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< li > ProDOS-8 v2.5.0 "NOSLOTCLK.II" - internal F8< / li >
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< br >
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< p > < strong > NOTE: < / strong > For ProDOS, the load order of drivers is important:< / p >
< p > Some .SYSTEM drivers will < strong > not< / strong > chain-load the next driver.< br >
NS.CLOCK.SYSTEM does, so ensure this is the first one ProDOS finds,
whereas ZIP.SYSTEM doesn't so put this at the end of the chain.< / p >
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