While Carbon supports most of the Memory Management Utilities, there are changes to functions that assume a 68K
runtime environment.
* Functions that flush caches on 68K processors (such as FlushInstructionCache, FlushDataCache, and
FlushCodeCacheRange) are no longer supported.
* Functions such as SetA5 or SetCurrentA5 do nothing when running in Mac OS
X. However, these functions should work normally when running in Mac OS 8 and
9.
* The functions GetMMUMode and SwapMMUMode are not supported because all PowerPC applications use
32-bit addressing, even if they are not CarbonÐcompliant.
* The SysEnvirons function is no longer be supported since the Gestalt Manager can provide the same information.
You should call the functions FindFolder and Gestalt instead.