Tandy 1000 MS-DOS Reference Manual page 268

Chapter 12 / Link Technical Reference
How the Linker Combines and Arranges
Segments
The linker works with four combine types, which are declared in
the source module for the assembler or compiler. The types are:
private, public, stack, and common. The memory combine type
(available in Microsoft's Macro Assembler) is synonymous with
the public combine type. The linker does not automatically place
memory combine type as the highest segment (as defined in the
Intel standard).
The linker arranges these combine types as follows:
Private
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Private segments are loaded separately
and remain separate. They may be
physically (but not logically)
contiguous, even if the segments have
the same name. Each private segment has its
own canonical frame.
Public and stack segments of the
same name and class name are loaded
contiguously. Offset is from the
beginning of the first segment
loaded through the last segment
loaded. There is only one canonical
frame for all public segments of the
same name and class name. Stack and
memory combine types are treated the
same as public. However, the stack
pointer is set to the last address of
the first stack segment.
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