far ptr

bits 16
org 0x7c00

; You can do a indirect jump to a FAR PTR specified as a memory operand
; like this:
jmp far [farptr]

; or this (note pushing an immediate can only be done on 80186+)
; on an 8086 you can MOV a value to a register and then push the register

; push 0x0000     ; Push a segment
; push 0x7ea5     ; Push an offset
; retf            ; FAR Return

; ... other code and data

farptr:
    dw 0x7ea5   ; FAR PTR offset
    dw 0x0000   ; FAR PTR segment
; or
;   dd 0x00007ea5

times 510-($-$$) db 0x00
dw 0xaa55