Constants

Decimal Constant

A decimal constant is a sequence of digits without a leading zero,

e.g. 42
The constant will be stored in the smallest size integer data type that can hold it without lose of data.

Octal Constant

An octal constant is a sequence of digits with a leading zero,

e.g. 052
The constant will be stored in the smallest size integer data type that can hold it without lose of data.

Hex Constant

A hex constant is a sequence of digits with a leading "0x",

e.g. 0x2A
The constant will be stored in the smallest size integer data type that can hold it without lose of data.

Identifier Constant

An identifier constant is a label, e.g. Start: movl R0, R1 or an equate, e.g. .set IPR_ISP 4 A labels value is the address of the label.
An equate's value is the value of the equate.

Character Constant

A character constant is a single quot followed by a character, e.g. movl 'A, R0

String Constant

A string constant is a sequence of character enclosed in double quotes,
eg. "This is a String"
The C language '\' escape codes are recognised.
eg.
\t translates to tab
\n translates to a new line
\r translates to a CR
\\ translates to a \
...
Strings are not null terminated and have no leading length byte.

Floating Point Constant

A float point constant (F format) is a number of the form 0f±n.ne±n,

eg. 0f5.723e-23

D Format Floating Point Constant>

A D format float point constant is a number of the form 0d±n.nd±n,

eg. 0d5.723d-23
This type is recognised by the assembler, but is Not supported by the MacVAX simulator

G Format Floating Point Constant

A G format float point constant is a number of the form 0g±n.ng±n,

eg. 0g5.723g-23
This type is recognised by the assembler, but is Not supported by the MacVAX simulator

H Format Floating Point Constant

A H format float point constant is a number of the form 0h±n.nh±n,

eg. 0h5.723h-23
This type is recognised by the assembler, but is Not supported by the MacVAX simulator