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Write a program to store block of data in reverse order in a memory block using 8085 microprocessor?
Wiki User
∙ 14y ago
A possible program to reverse a block of memory using the 8085...
PUSH F SAVE PROCESSOR STATE - OPTIONAL
PUSH B
PUSH D
PUSH H
LXI H,{address of block}
MOV D,H SAVE BLOCK ADDRESS
MOV E,H
MVI A,{size of block}
MOV C,A SAVE BLOCK SIZE
LOOP1:
MOV A,M GET DATA BYTE
PUSH F PUSH ON STACK
DCR C DECREMENT LOOP COUNT
XRA A TEST FOR END OF LOOP
CMP C
JNZ LOOP1
MOV H,D RESTORE BLOCK ADDRESS
MOV L,E
MOVE C,B RESTORE BLOCK SIZE
LOOP2:
POP F POP FROM STACK
MOV M,A PUT DATA BYTE
DCR C DECREMENT LOOP COUNT
XRA A TEST FOR END OF LOOP
CMP C
JNZ LOOP2
POP H RESTORE PROCESSOR STATE - OPTIONAL
POP D
POP B
POP F
Wiki User
∙ 14y ago
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