{PC} or .

Contains the current value of the program location counter.

{VAR} or @

Contains the current value of the storage area location counter.

{TRUE}

Contains the logical constant true.

{FALSE}

Contains the logical constant false.

{OPT}

Contains the value of the currently set listing option.

The OPT directive can be used to save the current listing option, force a change in it, or restore its original value.

{CONFIG}

Has the value 32 if the assembler is in 32-bit program counter mode, and the value 26 if it is in 26-bit mode.

{ENDIAN}

Has the value "big" if the assembler is in big-endian mode and the value "little" if it is in little-endian mode.

{CODESIZE}

Has the value 16 if compiling Thumb code. Otherwise, it is 32.

{CPU}

Has the name of the selected CPU or generic ARM if no CPU is specified.

{ARCHITECTURE}

Has the value of the selected ARM architecture: 4 or 4T.