arithr START 0 
    LDS #11
    LDT #5
     
    LDA ZERO
    ADDR S, A
    ADDR T, A
    STA sum
    
    LDA ZERO 
    ADDR S, A 
    SUBR T, A
    STA diff

    LDA ZERO 
    ADDR S, A
    MULR T, A
    STA prod

    LDA ZERO 
    ADDR S, A
    DIVR T, A
    STA quot

    LDA ZERO
    ADDR S, A
LOOP SUBR T, A
    COMPR A, T
    JGT LOOP
    JEQ LOOP
    STA mod
HALT J HALT 
    END arithr

ZERO WORD 0 
sum RESW 1
diff RESW 1
prod RESW 1
quot RESW 1
mod RESW 1