© Thomas Kunz 2000
SCE 574
86
Data Declaration
äReserve
and initialize memory locations
äCan
define symbolic labels (names) for memory locations
äValue
of the label is a memory address
äGeneral
form LABEL TYPE OPERAND
äLABEL
:legal characters are alphanumeric + [‘-’ | ‘@’ | ‘$’ | ‘?’], cannot start with a
digit
äTYPE:
DW for a word, DB for a byte
äOPERAND:
one or more definitions separated by commas
äEX:
äX DW 0
äY DW -1
äZ DB 5
äHi DB ‘Hello’