Форматы машинных команд

  • View
    61

  • Download
    0

Embed Size (px)

DESCRIPTION

. . mod reg r/m. d w. 7 0. 7 1 0. 7 0. 7 6 5 4 3 2 1 0. Disp H. Disp L. . - PowerPoint PPT Presentation

Transcript

  • MOV AX, BXSUB AL, AXMOV BL, BH d wmod reg r/m7 1 07 6 5 4 3 2 1 07 07 0Disp LDisp H

  • 1

  • MOV AX, GammaMOV BL, 10000111bADD CX, 0FFFEh

  • ( ) ( )ARRAY DB 20 DUP (@); 20

  • - ( ), . :[BX] [SI] DS: [BX] [SI];[BX] [DI] DS: [BX] [DI];[BP] [SI] SS: [BP] [SI];[BP] [DI] SS: [BP] [DI]. - ( ) , 20 ( 10 ):MAS DB QWERTYUIOP DB

  • SEG : EA PA = SEG*16 + EA

  • JMP Start_1 ; Start_1

  • CBW; CLC; CLI; STC;

  • -

  • XMS Extended Memory SpecificationHMA High Memory Area220 : 00000h FFFFFh