assembly - How to store register value in variable ARM7 -

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i'm trying write program store larger of 2 values in variable larger

i'm new arm7 , having trouble figuring out how store values in registers label variable.

heres code errors:

enter image description here

i know convoluted solution, when using risc processor, have cope things.

basically solution works storing address of variable in register, , using register change value. enter image description here


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