Debug Messages in no$gmb and BGB

I've recently started working on a little side project, involving Gameboy development. While reading through the docs of BGB1, I noticed it supports printing debug messages to a debug console, I, however, couldn't get it working, since it was using the syntax of the no$gmb2 assembler. Thanks to the people of #gbdev on EFnet, especially beware, I've eventually got it working, and made an rgbds3 macro out of it.
Without further ado, here is a gist of the it:

IF !DEF(DEBUG_INC)  
DEBUG_INC SET 1

; Prints a message to the no$gmb / bgb debugger
; Accepts a string as input, see emulator doc for support
DBGMSG: MACRO  
        ld  d, d
        jr .end\@
        DW $6464
        DW $0000
        DB \1
.end\@:
        ENDM

ENDC ; DEBUG_INC