'Mov ah' presentation slideshows

??? 80x86 ????????

1.33k views • 111 slides

??? 80x86 ????????

1.3k views • 111 slides

Assembly Language for Intel-Based Computers

Assembly Language for Intel-Based Computers. Kip R. Irvine. Chapter 13: 16-Bit MS-DOS Programming. MS-DOS and the IBM-PC. Real-Address Mode MS-DOS Memory Organization MS-DOS Memory Map Software Interrupts INT Instruction Interrupt Vectoring Process Common Interrupts. Real-Address Mode.

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Using the Assembler

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Using the Assembler

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? 4 ? ???????? ( ??

Assembly Language Programming(3). ?? # ??? # ? DOS/BIOS ?? ( ????? ??? ?????? ????? ???? ??????????????? ?????? ----- ??????. ? 4 ? ???????? ( ??. ????????? 1 ?????. DATA SEGMENT STRG DB 256 DUP(1,2,3) STG1 EQU STRG+7 STG2 EQU STRG+27

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PART D-2

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Flow Control Instructions

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P189 4.10 ?????????????????10???????????????? BCD ?????? AH? ???? AL? ????? ???????????????

??? ????????. P189 4.10 ?????????????????10???????????????? BCD ?????? AH? ???? AL? ????? ???????????????. XOR BX?BX LOP ? MOV AH?01H INT 21H MOV AH?BH ADD AL?BL MOV BX?AX LOOP LOP. MOV CX?10. AND AL?0FH ? ??. AAA. ??? ????????. P189 4.11

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??????????. ?? DOS ???? :MD,CD, RD,DIR ?????? ???????? (ASM) ?????? (0,O; DX,DS) ??????????? ??????????. ?????????????? P29 ?? 1 ? 2 P30 ?? 1 ? 3 P32 ????? 2 P32 ????? 3. P32 ?????? 3 ???? DATA SEGMENT STRING1 DB 'ABcdEFGH' STRING2 DB 'ABcDEFGH' RESULT DW (?) DATA ENDS

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??????????. ?? DOS ???? :MD,CD, RD,DIR ?????? ???????? (ASM) ?????? (0,O; DX,DS) ??????????? ??????????. ?????????????? P29 ?? 1.2 P30 ?? 1.3 P32 ????? 2 P32 ????? 3. P32 ?????? 3 ???? DATA SEGMENT STRING1 DB 'ABcdEFGH' STRING2 DB 'ABcDEFGH' RESULT DW (?) DATA ENDS

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??3

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COMP2012H: OOP and DS (honors track) course.cst.hk/comp2012h

COMP2012H: OOP and DS (honors track) http://course.cs.ust.hk/comp2012h. Fast-paced High workload Learn many details on your own Therefore, you must be both good and hard-working to succeed COMP2012H challenges the best and the most independently minded!. Announcement. No lab in week 1

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?6??? 3? ??128??? ????????10? ?????????4? 5? ??????????? RD M/IO BHE A 0 0 1 1 0

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IP high IP low

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Store 2 value in BL Store 3 value in CL Display to BL and CL register

Program.-(7) * Write a program to interchange values of two registers and display string or message from LEA/offset address command. Store 2 value in BL Store 3 value in CL Display to BL and CL register To Interchange value of BL and CL After swap Display to BL and CL register.

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.model small .stack 100h .data gotoxy macro x,y mov ah,2 mov dh,10 mov dl,20

.model small .stack 100h .data gotoxy macro x,y mov ah,2 mov dh,10 mov dl,20 int 10h endm window macro bk,x1,y1,x2,y2 mov ah,7 mov bh,bk mov ch,y1 mov cl,x1 mov dh,y2 mov dl,x2 int 10h endm .code. main proc call cls gotoxy mov ah,2

195 views • 1 slides