ISCAL
l
Assembler directives: not instructions to computer, but
rather tell assembler what to do:
l
define
Identifier
Value
Defines
Identifier
to have
Value.
l
use
Identifier
Defines
Identifier
to name an
unused
register.
l
origin
Value
Begin loading instructions at
specified memory location.
The location counter is
incremented as loading
progresses.
l
label
Identifier
Associates current instruction
location with
Identifier.