HLASM Language Reference

DC Instruction
Figure 32. Types of Data Constants
Type of
Constant Function Example
Address
Defines address mainly
for the use of fixed-point
and other instructions
L 5,ADCON
ADCON DC A(SOMWHERE)
Binary Defines bit patterns FLAG DC B'1'
Character
Decimal
Fixed-point
Floating-point
Graphic
Defines character strings
or messages
Used by decimal
instructions
Used by the fixed-point
and other instructions
Used by floating-point
instructions
Defines character strings
or messages that contain
pure double-byte data
CHAR DC C'string of characters'
ZAP AREA,PCON
PCON DC P'1'
AREA DS PL3
L 3,FCON
FCON DC F'1'
LE 2,ECON
ECON DC E'1.5'
DBCS DC G''
Hexadecimal Defines large bit patterns PATTERN DC X'FFFF'
┌─,───────┐
►►──┬────────┬──DC─── ▼ ─operand─┴────────────────────────────────────►◄
└─symbol─┘
symbol
is one of the following:
An ordinary symbol
A variable symbol that has been assigned a character string with a value
that is valid for an ordinary symbol
A sequence symbol
If symbol denotes an ordinary symbol, the ordinary symbol represents the
address of the first byte of the assembled constant. If several operands are
specified, the first constant defined is addressable by the ordinary symbol. The
other constants can be reached by relative addressing.
operands
An operand of six subfields. The first five subfields describe the constant. The
sixth subfield provides the nominal values for the constants.
A DC operand has this format:
►►──┬────────────────────┬──type──┬────────────────┬────────────────►
└─duplication_factor─┘
└─type_extension─┘
►──┬──────────────┬──┬──────────┬──nominal_value───────────────────►◄
| └─program_type─┘
└─modifier─┘
Chapter 5. Assembler Instruction Statements 127