Appendix B: DOS Memory Settings
Upper Memory Usage
InordertogetmaximumUMBusage,theEMM386.EXEdrivershouldbeloadedin
theCONFIG.SYSfilewiththefollowing.
DEVICE=\DOS\EMM386.EXE NOEMS i=B000-B7FF i=D000-DFFF
Other memory range Considerations
• B800toBFFF‐Standardcolorgraphicsdataarea(offlimits)
•
C000toCEFF‐VGABIOSarea(offlimits)
•
CF00toCFFF‐PXEUNDI(4K)
•
E000toFFFF‐PCBIOSarea(offlimits)