What address does x86 do?

Question

When 8086 or 8088 starts, what address does the processor execute? I know that the Z80 starts at 0, and 6809 looks at FFFF to start the address, but I often wondered how x86 starts.

EDIT:

This does not involve BIOS intervention. I.E. if I had my own EEPROM to boot, where should it be located in RAM to start the machine?

Answer 1

This is a much more complicated question than you probably understood. On 8086 it is pretty simple - it runs on FFFF: 0000 (16-bytes to the end of the memory).

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Answer 2

cs (code selector) 0xffff, ip ( ) 0x0000.

0xffff0, cs/ip , , -, , .

, , 8080 , 64- , . cs, , .

Answer 3

8086 reset sets the program counter FFFF0h.