May 2024
Intermediate to advanced
889 pages
30h 8m
English
book
The X 86 Microprocessors: Architecture, Programming and Interfacing (8086 to Pentium) 2nd Edition by Pearson
by Lyla B. Das
Content preview from The X 86 Microprocessors: Architecture, Programming and Interfacing (8086 to Pentium) 2nd Edition by Pearson
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13-28
THE
x86 MICROPROCESSORS
13.6.8 | Programming the 8087
13.6.8.1
|
Addressing Modes
Data that is used by the coprocessor may be in memory or in any register of the register
set. The addressing modes dictate that either the source and destination may be both
registers or one of them is a register while the other is a memory location. When reg-
isters are used, there are ways of addressing in which ST(0) is implicit and need not be
mentioned in the instruction.
13.6.8.2
|
Instruction Format
All the instruction mnemonics start with the letter F. So, FADD indicates addition, and
FMUL represents multiplication and so on.
Now let us see a few of them. ...
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