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What's in an API call?, How exactly a Win API call happens

kamil
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Good day
I looked at a Win API call in my .lst file and saw
E8 00000000 E * call WriteConsoleA

from this line i could deduce that E8 is a Call opcode, 0000000 an address which is undefined, E - external call

Can you tell me how a Win API call happens from the point of view of an Assembly language programmer?

Regards
Kamil
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