程序代写代做代考 ; input: starting in address 80 and ends with number 00

; input: starting in address 80 and ends with number 00
; tested input: 10, 20, 30, 50, 60, 40

; output: same with input location, but with data reversed.

; load constants
load R0, 0
load R1,1
load R2,-1

load R3, 80 ; R3 stores the beginning address of the data

; find the last position of the input data
move R4,R3
FindLast:
load R6,[R4]
jmpEQ R6=R0,Jout ;; the data is 0 which indicates the end of input data
addi R4,R4,R1
jmp FindLast

Jout:
addi R4,R4,R2 ;; now R4 stores the last position of the input data

Reverse:

move R0,R3
jmpLE R4<=R0,Exit ;; test whether reverse finishes ;; load the start and end number of current range load R6,[R3] load R7,[R4] ;; swap the two numbers store R7,[R3] store R6,[R4] ;; update beginning and ending address addi R3,R3,R1 addi R4,R4,R2 ;; continue to reverse in the new range jmp Reverse Exit: halt ;; end the program ;; input data stored in address beginning in 80 org 80 Input: db 10, 20, 30, 50, 60, 40, 0 /docProps/thumbnail.jpeg