option

Sets an assembler control option as Option Keywords describes.

  .option keyword setting

Parameters

keyword

Control option.

setting

Setting value appropriate for the option: OFF, ON, RESET, or a particular number value. RESET returns the option to its previous setting.

Table 1. Option Keywords
Keyword	Description
alignment off \| on \| reset	Controls data alignment on a natural boundary. Does not correspond to any option of the Assembler settings panel.
branchsize 8 \| 16 \| 32	Specifies the size of forward branch displacement. Applies only to x86 and 68K assemblers. Does not correspond to any option of the Assembler settings panel.
case off \| on \| reset	Specifies case sensitivity for identifiers. Corresponds to the Case-sensitive identifiers checkbox of the Assembler settings panel.
colon off \| on \| reset	Specifies whether labels must end with a colon (:). The OFF setting means that you can omit the ending colon from label names that start in the first column. Corresponds to the Labels must end with ':' checkbox of the Assembler settings panel.
no_at_macros off \| on	Controls $AT use in macros. The OFF setting means that the assembler issues a warning if a macro uses $AT. Applies only to the MIPS Assembler.
period off \| on \| reset	Controls period usage for directives. The ON setting means that each directive must start with a period. Corresponds to the Directives begin with '.' checkbox of the Assembler settings panel.
reorder off \| on \| reset	Controls NOP instructions after jumps and branches. The ON setting means that the assembler inserts a NOP instruction, possibly preventing pipeline problems. The OFF setting means that the assembler does not insert a NOP instruction, so that you can specify a different instruction after jumps and branches. Applies only to the MIPS Assembler.
space off \| on \| reset	Controls spaces in operand fields. The OFF setting means that a space in an operand field starts a comment. Corresponds to the Allow space in operand field checkbox of the Assembler settings panel.