All of these are not required, just nice to haves. I quite like BeebAsm, it reminds me of Script Assembler, an ARM assembler that I coded back in the day, but never released (I've still got the source somewhere).

Anyway; some nice to haves:

• = as a synonym for equb (a common thing in the ARM world)
• A macro facillity, e.g. if I have a piece of code I use commonly, for example 16 manipulation, we can have:
  
  Code:
  macro add16(location,value)
     if value
        lda location
        adc #value
        sta location
        bcc next
     else
        inc location
        bne next
     endif
     inc location+1
     .next
  endmacro
  
• function prototypes, not a real function, but a more convenient way of setting up a jsr, for example
  
  Code:
     findmessage('A',messageblock)
     ...
     ; Accumulator = message
     ; X = buffer lo
     ; Y = buffer hi
     def findmessage(A,YX)
        ; code goes here
     enddef
  
  
  This would compile to be:
  
  Code:
     lda #'A'
     ldx #messageblock MOD 256
     ldy #messageblock DIV 256
     jsr findmessage
  

I'll probably think of more...

Hey... yeah, I hadn't realised you'd also requested macros

Anyway BeebAsm 1.05 should do the trick. Your second request is kinda redundant I think, as it can be done with macros just as easily -


Hope this works ok for you!