[SECTION .data]

uhoh db 5

[GLOBAL blah]

blah dw 5
[SECTION .text]

[EXTERN hi]
[EXTERN hi]
[EXTERN bye]

mov eax, hi+2
mov eax, bye
mov eax, [hi]
mov eax, [bye+2]
mov eax, $$
mov eax, $
mov eax, $-$$
;mov eax, uhoh wrt $$
mov eax, hi+bye
mov eax, bye+$
mov eax, hi-$