Mpmc 32 Bit.pdf

Micro Processors and Micro Controllers Laboratory Manual of Electronics and Communication Engineering

Preface: This Laboratory manual is for supporting students to learn practicals aspects of Micro Processors and Micro Controllers Using Visual Studio software The manual is prepared with intention to cover the Laboratary Experiments according to Jntuh Syllabus with step by step procedure.The following are the list of Experiments included in ths Manual I. II. III. IV. V.

Programs for 16 bit arithmetic operations for 8086 (using Various Addressing Modes). Program for sorting an array for 8086. Program for searching for a number or character in a string for 8086. Program for string manipulations for 8086. Program for digital clock design using 8086.

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CONTENTS I. How to write programs in Visual Studio II. Programs for 16 bit arithmetic operations for 8086 (using Various Addressing Modes) III. Program for sorting an array for 8086. IV. Program for searching for a number or character in a string for 8086. V. Program for string manipulations for 8086. VI. Program for digital clock design using 8086.

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Implementation of Programs

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How to write Assembly language programs in Visual Studio 1. Go to Start 2. Go to File menu

All Programs New

Visual Studio 2015 Project

3. In the New Project window, select Win32 under Visual C++ in the left panel, and select Win32 Console Application in the middle panel. Give your project a suitable name (near the bottom of the window):

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4. Click the OK button to continue. The Win32 Application Wizard window will appear. Select Application Settings, and then select the Empty project check box.

5. Click the Finish button to save the new project. 6. Open the Solution Explorer window and add an assembly language source file to your project. Here's how: Right-click the project name in the Visual Studio window, select Add, select Existing Item. In the Add Existing Item dialog window, browse to the location of the file you want to add, select the filename, and click the Add button to close the dialog window. Note: You may delete the Header Files, Resource Files, and Source Files folders if you wish. They are not necessary.  

If You want create a assembly language source file then Right –click on the project Name in the visual studio windows, select Add, select New Item In the Add New window, select Code under Visual C++ in the left panel, and select C++ File (.cpp) in the middle panel. Give your file name with .asm extension and then click on Add

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7. Next, right click your project name, select Build Dependencies, then select Build Customizations from the popup menu. When you see the above window, select the check box next to masm and click the OK button to close the dialog.

8. Right-click the project name in the Solution Explorer window and select Properties from the popup menu. Expand the entry under Configuration Properties. Then expand the entry named Microsoft Macro Assembler. This is what you should see:

9. Modify the Include Paths option so it equals "C:\Masm". This tells the assembler where to find files having a filename extension of ".inc". Here is a sample: 3

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10. Next, select the Listing File entry, also in the Microsoft Macro Assembler group. Modify the Assembled Code Listing File entry (shown below) so it contains $(ProjectName).lst. This uses a built-in variable to identify the name of the source input file, with a file extension of .lst. So, if your program were named main.asm, the listing file would be named main.lst:

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11. Find the Linker entry under Configuration Properties. Select the Input entry, and insert masm32.lib;at the beginning of the Additional Dependencies entry. The filenames must be separated by semicolons.

12. Select Linker under Configuration Properties, and then select General. The Additional Library Directories entry must contain c:\Masm32 so the linker can find the masm32.lib library file:

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13. Select Linker under the Configuration Properties and select Debugging. Verify that the Generate Debug Info option is equal to either true or Optimize for debugging (/DEBUG)

14. After Select Advanced under the Linker entry. Set the Image Has Safe Exception Handlers option to No

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15. Then Click the OK button to close the Property Pages window. Verify that your project has been created correctly by building and debugging the program as you did in an earlier tutorial.

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Program No 1 Programs for 32 bit arithmetic operations for 8086 (using Various Addressing Modes) a) Addition: i) 16 bit addition: AIM: - Write an assembly language program for Addition of two 32-bit numbers. Tool Requirement: Visual Studio 2015 with Masm Program: Include masm32.inc .code main proc mov eax,5 add eax,6 invoke ExitProcess,0 main endp end main

OUTPUT

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ii) Multi byte addition AIM: - Program to perform multi byte addition Tool Requirement: Visual Studio 2015 with masm Program TITLE (.asm) INCLUDE masm32.inc .data str1 DB 01H,02H,03H,04H,05H Str2 DB 01h,02h,03h,04h,05h str3 DB 4 DUP(0) .code main PROC MOV eAX, 0000h LEA eSI,str1 LEA eDI,str3 LEA eBX,str2 MOV CL, 05 UP : MOV AL, [eSI] ADD AL,[eBX] MOV [eDI], AL INC eSI INC eBX INC eDI DEC CL JNZ UP exit main ENDP END main OUTPUT

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b) Subtraction: i) 16 bit Subtraction: AIM: - Write an assembly language program for Subtraction of two 16-bit numbers. Tool Requirement: Visual Studio 2015 with masm Program TITLE (.asm) INCLUDE masm32.inc .data .code main PROC MOV eAX, 6h MOV eBX, 3h SUB eAX, eBX exit main ENDP END main OUTPUT

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ii) Multi byte subtraction AIM: - Program to perform multi byte subtraction Tool Requirement: Visual Studio 2015 with masm Program TITLE (.asm) INCLUDE masm32.inc .data str1 DB 02H,03H,04H,05H,06H Str2 DB 01h,02h,03h,04h,05h str3 DB 4 DUP(0) .code main PROC MOV eAX, 0000h LEA eSI,str1 LEA eDI,str3 LEA eBX,str2 MOV CL, 05 UP : MOV AL, [eSI] SUB AL, [eBX] MOV [eDI], AL INC eSI INC eBX INC eDI DEC CL JNZ UP exit main ENDP END main OUTPUT

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c) Multiplication: i) 32 bit multiplication and imultiplication: AIM: - Wite an assembly language program for multiplication of two 16-bit numbers. Tool Requirement: Visual Studio 2015 with masm Program

; This program shows examples of both signed and unsigned multiplication. INCLUDE masm32.inc .code main PROC mov ax,255 mov bx,255 imul bx ;Example 1 mov al,5h mov bl,10h mul bl ; CF = 0 ;Example 2 .data val1 WORD 2000h val2 WORD 0100h .code mov ax,val1 mul val2 ; CF = 1 ;Example 3: mov eax,12345h mov ebx,1000h mul ebx ; CF = 1 ; IMUL Examples: ; Example 4: .data val3 SDWORD ? .code mov eax,+4823424 mov ebx,-423 imul ebx ; EDX=FFFFFFFFh, EAX=86635D80h mov val3,eax exit main ENDP END main

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OUTPUT

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d) iDivision: 32 bit division: AIM: - Write an assembly language program for multiplication of two 32-bit numbers. Tool Requirement: Visual Studio 2015 with masm Program

; This program shows examples of various IDIV formats. INCLUDE masm32.inc .code main PROC ; Example 1 .data byteVal SBYTE -48 .code mov al,byteVal ; dividend cbw ; extend AL into AH mov bl,+5 ; divisor idiv bl ; AL = -9, AH = -3 call DumpRegs ; Example 2 .data wordVal SWORD -5000 .code mov ax,wordVal ; dividend, low cwd ; extend AX into DX mov bx,+256 ; divisor bx ; quotient AX = -19, rem DX = -136 idiv DumpRegs call ; Example 3 .data dwordVal SDWORD +50000 .code mov eax,dwordVal ; dividend, low cdq ; extend EAX into EDX mov ebx,-256 ; divisor idiv ebx ; quotient EAX = -195, rem EDX = +80 call DumpRegs exit main ENDP END main

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OUTPUT

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Program No 2: Program for sorting an array for 8086. i) ASCENDING ORDER AIM:-Program to sort the given numbers in ascending order Tool Requirement: Visual Studio 2015 with masm Program TITLE (.asm) ; This program ; Last update: INCLUDE masm32.inc .data STRING1 DB 99H,12H,56H,45H,36H .code main PROC MOV AX, 00H MOV CH, 04H DEC CH UP1: MOV CL, 04h LEA eSI,STRING1 ;MOV eSI, 2000 UP: MOV AL, [eSI] INC SI CMP AL, [eSI] JC DOWN XCHG AL, [eSI] DEC SI MOV [eSI], AL INC eSI DOWN: DEC CL JNZ UP DEC CH JNZ UP1 exit main ENDP END main OUTPUT

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ii) DESCENDING ORDER AIM:-Program to sort the given numbers in descending order Tool Requirement: Visual Studio 2015 with masm Program INCLUDE masm32.inc .data STRING1 DB 99H,12H,56H,45H,36H .code main PROC MOV AX, 0000H MOV CH, 0004H DEC CH UP1: MOV CL, 0004h LEA eSI,STRING1 UP: MOV AL, [eSI] INC eSI CMP AL, [eSI] JNC DOWN XCHG AL, [eSI] DEC eSI MOV [eSI], AL INC eSI DOWN: DEC CL JNZ UP DEC CH JNZ UP1 exit main ENDP END main OUTPUT

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Program No: 3 Program for searching for a number or character in a string for 8086. AIM: Write an alp program for to search a number or character from a string Tool Requirement: Visual Studio 2015 with masm Program TITLE (.asm) INCLUDE masm32.inc MsgBox PROTO .data STRING1 DB 11H,22H,33H,44H,55H MSG1 BYTE "FOUND",0 MSG2 BYTE "NOT FOUND",0 SE DB 02H .code main PROC MOV AL, SE LEA eSI, STRING1 MOV CX, 04H UP: MOV BL,[eSI] CMP AL, BL JZ FO INC eSI DEC CX JNZ UP mov edx,OFFSET MSG2 call WriteString JMP END1 FO:

mov edx,OFFSET MSG1 call WriteString END1: call DumpRegs exit main ENDP END main OUTPUT

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Program NO.4 Program for string manipulations for 8086. 1) Moving Block Of Data From One Memory Location To Another Memory Location AIM: To write an alp for transfer block of data from one memory location to another memory location. Tool Requirement: Visual Studio 2015 with masm Program TITLE (.asm) INCLUDE masm32.inc .data STRING1 DB 01H,02H,03H,04H,05H STRING2 DB 4 DUP(0) .code main PROC LEA eSI,STRING1 LEA eDI,STRING2 MOV CX,05H CLD REP MOVSB exit main ENDP END main OUTPUT

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2) Reverse of a data: AIM: To write a alp for reverse of a given string Tool Requirement: Visual Studio 2015 with masm Program TITLE (.asm) INCLUDE masm32.inc .data STRING1 DB 01H,02H,03H,04H,05H STRING2 DB 4 DUP(0) .code main PROC LEA eSI,STRING1 LEA eDI,STRING2 MOV CX, 0008 ADD eSI, 07 UP: MOV AL, [eSI] MOV [eDI], AL DEC eSI INC eDI DEC CX JNZ UP exit main ENDP END main OUTPUT

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3) INSERT A BYTE IN A GIVEN STRING AIM: Write an alp for insert a new byte in a given string. Tool Requirement: Visual Studio 2015 with masm Program TITLE (.asm) INCLUDE masm32.inc .data STRING1 DB 01H,02H,03H,04H,05H STRING2 DB 4 DUP(0) STRING3 DB 01h .code main PROC LEA eSI,STRING1 LEA eDI,STRING2 LEA eBX,STRING3 MOV CX, 0004 CLD L1: MOV eAx, [eSI] CMP eax, [eBX] JZ L2 MOVSB L2: MOVSB INC eBx MOV eax, [eBX] MOV [eDI], eax DEC CX ;INC eDI REP MOVSB L3: exit main ENDP END main OUTPUT

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4) DELETE A BYTE IN A GIVEN STRING AIM: To write a alp for delete a byte in a given string Tool Requirement: Visual Studio 2015 with masm Program TITLE (.asm) INCLUDE masm32.inc .data STRING1 DB 01H,02H,03H,04H,05H STRING2 DB 04 DUP(0) ;STRING3 DB 01H .code main PROC LEA eSI,STRING1 LEA eDI,STRING2 mov ebx , 01h MOV CX, 0006 CLD L1: MOV Eax, [eSI] CMP al, bl Jz l2 JMP L3 L2: INC eSi DEC CX jz l4 jmp l1 REP MOVSB L3: MOVSB mov [edi],eax loop L1 l4: ;call DumpRegs ;call DumpMem exit main ENDP END main OUTPUT

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Program NO.5 Program for digital clock design using 8086. AIM: To write an ALP program for displaying the system clock Tool Requirement: Visual Studio 2015 with masm Program ; Display the Date and Time (DateTime.asm) ; This Real-mode program displays the date and time. Include masm32.inc Write PROTO char:BYTE .data str1 BYTE "Date: ",0 str2 BYTE ", Time: ",0 .code main PROC mov ax,@data mov ds,ax ; Display the date: mov dx,OFFSET str1 call WriteString mov ah,2Ah int 21h movzx eax,dh call WriteDec INVOKE Write,'-' movzx eax,dl call WriteDec INVOKE Write,'-' movzx eax,cx call WriteDec

; get system date ; month

; day

; year

; Display the time: mov dx,OFFSET str2 call WriteString mov ah,2Ch ; get system time int 21h movzx eax,ch ; hours call WritePaddedDec INVOKE Write,':' movzx eax,cl ; minutes call WritePaddedDec INVOKE Write,':'

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movzx eax,dh ; seconds call WritePaddedDec call Crlf exit main ENDP ;--------------------------------------------Write PROC char:BYTE ; Display a single character. ;--------------------------------------------push ax push dx mov ah,2 mov dl,char int 21h pop dx pop ax ret Write ENDP ;--------------------------------------------WritePaddedDec PROC ; Display unsigned integer in EAX, padding ; to two digit positions with a leading zero. ;--------------------------------------------.IF ax < 10 push ax push dx mov ah,2 mov dl,'0' int 21h pop dx pop ax .ENDIF call WriteDec ret WritePaddedDec ENDP END main OUTPUT

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