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# Exercise1_9

Garey Apr 9th, 2020 194 Never
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1. .global start
2.
3. start:
4.     MOV R0, #6              @ Number of elements
5.
6.     LDR R1, =myNumber       @ Get address of myNumber
7.     LDR R5, [R0]            @ Get Large Number
8.     LDR R1, =array          @ Load array address
9.
10.     MOV R3, #1              @ Store Product
11.     MOV R4, #2              @ Current Element
12.
13. check:
14.     CMP R0, #1
15.     BNE loop
16.     B exit
17.
18. loop:
19.     STR R4, [R1], #4    @ Store element in array
20.
21.     AND R6, R3, R5      @ R6 = R3 % R5
22.     AND R8, R4, R5      @ R8 = R4 % R5
23.     MUL R9, R6, R8      @ R9 = R6 * R8
24.     AND R4, R9, R5      @ R4 = R9 % R5
25.
26.     MOV R3, R4
27.
28.     ADD R4, R4, #1      @ R4 + 1
29.     AND R4, R4, R5      @ R4 % R5
30.
31.     SUB R0, R0, #1      @ Number of elements--
32.
33.     B check             @ Return to check section
34.
35. exit:
36.     LDR R1, =array
37.
38.     LDR R2, [R1]        @ Load elements from array in registers to see their values
39.     LDR R3, [R1, #4]    @ Load elements from array in registers to see their values
40.     LDR R4, [R1, #8]    @ Load elements from array in registers to see their values
41.     LDR R5, [R1, #12]   @ Load elements from array in registers to see their values
42.     LDR R6, [R1, #16]   @ Load elements from array in registers to see their values
43.     LDR R8, [R1, #20]   @ Load elements from array in registers to see their values
44.
45.     MOV R7, #1          @ Terminate syscall with status 1
46.     SWI 0               @ Execute syscall
47.
48. largeNum:
49.     .word 1000000007
50.
51. .data
52.     array: .word 0, 0, 0, 0, 0, 0
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