N: .word 3
matrix_multuiply:

    PUSH {R1-R11, LR}

    MOV R1, #0 //i
    MOV R2, #0 //j
    MOV R3, #0 //k


    B L1

L1:

    B L2

L2:
    MUL R6, R1, R4 //R6 = i*N
    //MOV R5, #0 //sum
    B L3


L3:
    LDR R4, =N
    LDR R4, [R4] //R4 = N
    ADD R7, R6, R3 //R7 = i*N + k
    MUL R8, R3, R4 //R8 = k*N
    ADD R8, R8, R2 //R8 = k*N + j

    LDR R4, =arrA
    ADD R4, R4, R7, LSL#3

    .word 0xED949B00

    //ADD R5, R5, R4
    LDR R4, =arrB
    ADD R4, R4, R8, LSL#3

    .word 0xED948B00

    //ADD R5, R5, R4

    .word 0xEE298B08

    .word 0xEE366B08

    ADD R3, R3, #1

    LDR R4, =N
    LDR R4, [R4]
    SUB R4, R4, #1
    CMP R3, R4
    BLE L3

    B getCij

getCij:

    ADD R7, R6, R2 //R7 = i*N + j
    LDR R9, =arrC
    ADD R9, R9, R7, LSL#3
    .word ED896B00

    ADD R2, R2, #1

    LDR R4, =N
    LDR R4, [R4]
    SUB R4, R4, #1
    CMP R2, R4
    BLE L2

    ADD R1, R1, #1
    CMP R1, R4
    BLE L1

    POP {R0-R11, LR}
    MOV PC, LR