Re: Displacement def in as

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Robert Plantz  wrote:
If you are using the gnu assembler, gas, you should
become familiar with the info for it. The command
is
    info as

Go to Machine Dependencies, then i386-Dependent,
then i386-Memory. There you will see that the AT&T
syntax is
    DISP(BASE, INDEX, SCALE)

DISP is an integer. An example is
    movl   $0, -4(%ebp)
which would store 32 bits of zero at the
memory location starting 4 bytes negative
from the address in the ebp register. (This
instruction does not use INDEX or SCALE.)

Linux uses a flat memory model, so you don't
need to worry about the segmentation registers
if you run your program under Linux.

Thank you Robert Plantz for your wonderful insight.

--STeve

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