Question

Write an Assembly Language program to transfer a block of memory starting from 1050H to 1059H to a new location starting from 1070H to 1079H.

Answer 1

Label	Mnemonics + Operand	Comment
	LXI H, 1050	Load content from 1050 to memory
	LXI D, 1070	Load content from 1070 to D reg.
	MVI C , 0A	Set counter to 0A H
up :	MOV A, M	Move content from memory to Acc.
	STAX D	Store Acc. content to D Reg
	INX H	Increment HL pair by 1
	INX D	Increment D pair by 1
	DCR C	Decrement counter
	JNZ :up	Jump If not zero to label up
	RST 1.0	Restart