Question: From fortran to Maple (the instruction go to)

Hi!

I want to implement to attached fortran program in Maple 2015 (the procudure starts at the end of the first page). 

localmin.pdf

The code does not seem dificult, but I don't know how to interpret the instructions "go to" of fortran. Reading Maple's doc about the "goto" instruction, I don't understand how to implement it.

Can somebody help with this code, please?

Many thanks in advance for your comments.

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