Zilog ZUSBOPTS Bedienungsanleitung PDF herunterladen (Seite 242)

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101

Output Files UM017105-0511

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Zilog Developer Studio II – ZNEO™

User Manual

MENT directive attaches code and data to a segment. The SEGMENT directive makes that

segment the current segment. Any code or data following the directive resides in the seg-

ment until another

SEGMENT directive is encountered. For more information about the

SEGMENT directive, see the SEGMENT

section on page 235.

A segment can also be defined with a boundary alignment and/or origin.

Alignment. Aligning a segment tells the linker to place all instances of the segment in

your program on the specified boundary.

Although a module can enter and leave a segment many times, each module still has only

one instance of a segment.

Origin. When a segment is defined with an origin, the segment becomes an absolute seg-

ment, and the linker places it at the specified physical address in memory.

Assigning Memory at Link Time

At link time, the linker groups those segments of code and data that have the same name

and places the resulting segment in the address space to which it is attached. However, the

linker handles relocatable segments and absolute segments differently:

Relocatable segments. If a segment is relocatable, the linker decides where in the

address space to place the segment.

Absolute segments. If a segment is absolute, the linker places the segment at the abso-

lute address specified as its origin.

At link time, you can redefine segments with the appropriate linker commands.

Output Files

The assembler creates the following files and names them the name of the source file but

with a different extension:

•

<source>.lst contains a readable version of the source and object code generated by

the assembler. The assembler creates <source>

.lst unless you deselect the Generate

Listing File (.lst)

checkbox in the Assembler page of the Project Settings dialog

box. See Generate Assembly Listing Files (.lst)

– see page 51.

Note:

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