Substitutes for x86 assembly ‘call’ instruction?

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The call instruction actually does this for you. For example call my_func would do something like:

push ret_address
jmp my_func

A subsequent ret call would just use the address you just pushed to jmp back in a sense. Is there a specific reason that you don’t want to use call or is it not available for you?
For current position in memory you can try to read the eip register (can’t write to it).

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