ASM code for 8 Bit Subtraction - 8051 - AT89C51 - Assembly


Flowchart:-



Program:-

ORG 0000H
CLR A
MOV DPTR ,#2001 H
MOVX A,@DPTR
MOV R2,A
DEC DPL
MOVX A,@DPTR
SUBB A, R2
INC DPTR
INC DPTR
INC DPTR
MOVX @DPTR, A
JNC STEP1
Mov A, 0FFH
DEC DPL
MOVX @DPTR, A
SJMP
STEP1 : MOV A, #00H
DEC DPL
MOVX @DPTR, A
SJMP
END

Output:-



For more ASM programs - click here

Popular posts from this blog

8051 Assembly Program Code for Sorting in Descending Order - Keil - AT89C51

Image
The program is compiled in Keil for 8051 - AT89C51 in assembly language. Program to sort numbers in descending order, Flowchart:- Program:- ORG 0000 MOV R1,#40H MOV R3,#04H LOOP1 : MOV 02H,03H MOV B,@R1 MOV 00H,01H INC R0 LOOP2: MOV A,@R0 CJNE A,B,CHECK MOV @R0,#00H SJMP CONTINUE CHECK :JC CONTINUE MOV @R0,B MOV @R1,A MOV B,@R1 CONTINUE :INC R0 DJNZ R2,LOOP2 INC R1 DJNZ R3, LOOP1 SJMP $ END Output:- For more ASM programs -  click here
Read more

8051 Assembly Program Code for Sorting in Ascending Order - Keil -AT89C51

Image
The program is compiled in Keil for 8051 - AT89C51 in assembly language. Program to sort numbers in ascending order, Flowchart:- Program:- ORG 0000 MOV R1,#40H MOV R3,#04H DEC R3 MOV 06H,R3 LOOP1 : MOV 02H,03H MOV B,@R1 MOV 00H,01H INC R0 LOOP2: MOV A,R0 CJNE A,B,CHECK. SJMP CONTINUE CHECK: JNC CONTINUE MOV @R0,B MOV @R1,A MOV B,@R1 CONTINUE:INC R0 DJNZ R2,LOOP2 INC R1 DJNZ R3, LOOP1 MOV A,#3FH ADD A,R6 MOV R0,A MOV P1,@R0 SUMP $ END Output:- For more ASM programs -  click here
Read more