May 2024
Intermediate to advanced
665 pages
23h 2m
English
book
The X86 Microprocessors: Architecture and Programming (8086 to Pentium), 1st Edition
by Lyla B. Das
Content preview from The X86 Microprocessors: Architecture and Programming (8086 to Pentium), 1st Edition
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150 THE x86 MICROPROCESSORS
where it had branched off . is means that the value of IP (and CS for a ‘far’ call) will have to
be retrieved. is is done by the ‘return’ instruction which is the last instruction in the procedure.
e execution of RET causes the return address to be popped from the stack to IP or IP and CS.
(Whenever a procedure is defi ned, it is known whether it is a far or near procedure. From this, it
is determined whether the stack has saved just the old IP value or both IP and CS.)
Usage: RET nii)
is is another form of the RET instruction. is adds the number ‘n’ to the stack pointer (SP)
after the return address has ...
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