I mean how is possible to turn code into physical form like a chip?
In: Technology
It doesnt. When you write code to a chip, nothing “physically” changes about the chip
I am going to assume you have some sort of flashable microcontroller for your “chip” but the process is the same for all processor/rom combos, they just arent always on the same chip. the chip contains memory cells that get electrically set to numbers that represents the code. The processor part of the chip is built to take a number, and based on that number, do an operation. This is built in a chip design and does not change. It also is built to read rom (in this case) sequentialy. when its finished with 1 operation, it automatically moves on a set number of bits and reads the next number.
This can do lots of things including math and writing to other places in memory, but the only thing that has changed about the chip is the electrons parked on the memory cells in the rom, everything else is the same.
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