[comp.os.msdos.programmer] Use of the XMS High Memory Area >1M

mshiels@tmsoft.uucp (Michael A. Shiels) (08/31/90)

I am starting to play around with things like EMS/XMS for loading code/data
out of the normal 640K space. 

XMS has 3 parts

Extended memory blocks in the >1M areas
Upper memory blocks in the <1M areas
High memory area which is the first 64K-16bytes >1M

Does anyone have any sample code to use the HMA?  Ie any examples of what you
can store up there and use it for?  Any restrictions?