1 / 3

Efficient String Manipulation in Assembly Language with REP and MOV Instructions

This lesson focuses on string instructions in Assembly Language Programming, particularly the use of the REP and MOV commands. It covers the techniques for repeating operations on strings with the REPz and REPNE prefixes, along with using MOVSB for copying strings. An example is provided to illustrate the copying of data from one string to another using memory segments in Assembly. Key assembly operations, initialization of data, and effective use of registers are explained to reinforce learning and application in real scenarios.

kamala
Télécharger la présentation

Efficient String Manipulation in Assembly Language with REP and MOV Instructions

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. CS344-321 Assembly Language Programming Period 26

  2. String Instructions Repeat Prefixes rep repe/repz repne/repnz Move String movs/movsb/movsw

  3. Example .data str1 db 20 dup(?) str2 db 20 dup(?) .code mov ax,@data mov ds,ax mov es,ax mov si,offset str1 mov di,offset str2 mov cx,20 cld rep movsb ; copy from str1 to str2

More Related