ARC Machine Directives

The ARC version of as supports the following additional machine directives:

.2byte expressions

*TODO*

.3byte expressions

*TODO*

.4byte expressions

*TODO*

.extAuxRegister name,address,mode

*TODO*

            .extAuxRegister mulhi,0x12,w
          

.extCondCode suffix,value

*TODO*

            .extCondCode is_busy,0x14
          

.extCoreRegister name,regnum,mode,shortcut

*TODO*

            .extCoreRegister mlo,57,r,can_shortcut
          

.extInstruction name,opcode,subopcode,suffixclass,syntaxclass

*TODO*

            .extInstruction mul64,0x14,0x0,SUFFIX_COND,SYNTAX_3OP|OP1_MUST_BE_IMM
          

.half expressions

*TODO*

.long expressions

*TODO*

.option arc|arc5|arc6|arc7|arc8

The .option directive must be followed by the desired core version. Again arc is an alias for arc6.

Note: the .option directive overrides the command line option -marc; a warning is emitted when the version is not consistent between the two - even for the implicit default core version (arc6).

.short expressions

*TODO*

.word expressions

*TODO*