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Questions - microprocessors

Can't we use the ADD instruction to add two 16-bit numbers in 8086?

As 8086 has a 16-bit ALU with 16-bit registers, this is how I pictured adding two 16-bit numbers: MOV BX,12FFh MOV CX,0001h ADD BX,CX But my professor said that 8086 did this operation in two steps i...
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Sandy Ketchum

assembly

x86-16

microprocessors

Votes: 0

Answers: 2

Latest Answer

But my professor said that 8086 did this operation in two steps instead of one ... She is wrong: According to the 8086 data sheet (page 2-52), adding two 16-bit numbers takes exactly the same time a...
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Martin Rosenau

Significance of learning 32 bit exploitation

I'm thinking of taking EXP 301 (Windows User Mode Exploit Development) exam. And I did some research on this exam; I came around many articles which criticised the exam material for only covering 32 b...
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Da3kL10rd

windows

32bit-64bit

exploit

instructions

microprocessors

Votes: 0

Answers: 1

Latest Answer

Is this a pre-requisite to learn 64 bit exploitation? No. There is a lot in common between x86-32 and x86-64, so much of what you learned about 32 bits would carry over, but it's not a prerequisite...
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Nate Eldredge

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