(Un)aligned Memory Access

As discussed in the previous chapter, it is very important to have proper data alignment on all data. There are however, times when this is not possible; in those cases the data would still need to be accessed quickly, so before we get into the heavy-duty instructions that can be handled, let us look at a method of handing the pre- and postpreparation of the data for them.

ASM 101 

MOV (Move) means to COPY.

MOV/MOVQ Move Data

MOV destination , source

Mnemonic

P

PII

K6

3D!

3Mx+

SSE

SSE2

A64

SSE3

E64T

LDDQU

               



32.64-Bit 80X86 Assembly Language Architecture
32/64-Bit 80x86 Assembly Language Architecture
ISBN: 1598220020
EAN: 2147483647
Year: 2003
Pages: 191

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