add EC-MACRO.ASM
use WD macro in EC386.ASM
use WD macro in ECDCL.ASM
use WD macro in ECDEF.ASM
use WD macro in ECEXP.ASM
use WD macro in ECMISC.ASM
use WD macro in ECMK.ASM
use WD macro in ECMK2.ASM
use WD macro in ECPRE.ASM
use WD macro in ECSUB.ASM