macro displayNum num
{
    display `num,13,10
}


; Works
displayNum 123

; Doesent Work
x equ 123
displayNum x

; Doesn't work
y = 123
displayNum y

; Doesn't work
z:  ; A label
displayNum z
    

flat assembler  version 1.73.02  (16384 kilobytes memory)
123
x
y
z
1 passes, 0 bytes.
    

macro dbNum num
{
    db `num,0
}

; Case 1
dbNum 123

; Case 2
y = 123
dbNum y

; Case 3
z equ 123
dbNum z
    

db "123",0 ; Case 1
db "y",0   ; Case 2
db "z",0   ; Case 2
    

; Case 2
y = 123
dbNum y

; Case 3
z equ 123
dbNum z
    

Also conversion of name(not value!) into a quoted string is possible, with the ` operator, which likewise can be used inside the macroinstruction. It converts the name that follows it into a quoted string - but note, that when it is followed by a macro argument which is being replaced with value containing more than one symbol, only the first of them will be converted, as the ` operator converts only one symbol that immediately follows it.

macro     dbNum directive, [Val]
{
 if Val <> 0
  Acc=Val
  Divider=1000000000000000000
  Highest0=0
  if Acc < 0
   directive "-"
  end if
  repeat 19
   Digit= Acc/Divider
   Acc= Acc mod Divider
   Divider= Divider/10
   if Digit <> 0
    Highest0= 1
   end if
   if Highest0 = 1
    directive Digit+"0"
   end if
  end repeat
 else
  directive "0"
 end if
 if directive in <db, du>
 directive 0
 else
 directive 0xa
 end if
}

y=123
z equ 123

dbNum db, 123, y, z
    

Case 1 assembles into to what I want but cases 2 and 3 do not

z equ 123
rept 1 c:z { db `c }    

macro dbNum num { rept 1 c:num \{ db \`c \} }