as: ARC Options
9.3.1 Options
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The following options control the type of CPU for which code is
assembled, and generic constraints on the code generated:
'-mcpu=CPU'
Set architecture type and register usage for CPU. There are also
shortcut alias options available for backward compatibility and
convenience. Supported values for CPU are
'arc600'
Assemble for ARC 600. Aliases: '-mA6', '-mARC600'.
'arc600_norm'
Assemble for ARC 600 with norm instructions.
'arc600_mul64'
Assemble for ARC 600 with mul64 instructions.
'arc600_mul32x16'
Assemble for ARC 600 with mul32x16 instructions.
'arc601'
Assemble for ARC 601. Alias: '-mARC601'.
'arc601_norm'
Assemble for ARC 601 with norm instructions.
'arc601_mul64'
Assemble for ARC 601 with mul64 instructions.
'arc601_mul32x16'
Assemble for ARC 601 with mul32x16 instructions.
'arc700'
Assemble for ARC 700. Aliases: '-mA7', '-mARC700'.
'arcem'
Assemble for ARC EM. Aliases: '-mEM'
'em'
Assemble for ARC EM, identical as arcem variant.
'em4'
Assemble for ARC EM with code-density instructions.
'em4_dmips'
Assemble for ARC EM with code-density instructions.
'em4_fpus'
Assemble for ARC EM with code-density instructions.
'em4_fpuda'
Assemble for ARC EM with code-density, and double-precision
assist instructions.
'quarkse_em'
Assemble for QuarkSE-EM cpu.
'archs'
Assemble for ARC HS. Aliases: '-mHS', '-mav2hs'.
'hs'
Assemble for ARC HS.
'hs34'
Assemble for ARC HS34.
'hs38'
Assemble for ARC HS38.
'hs38_linux'
Assemble for ARC HS38 with floating point support on.
'nps400'
Assemble for ARC 700 with NPS-400 extended instructions.
Note: the '.cpu' directive (
ARC Directives) can to be used
to select a core variant from within assembly code.
'-EB'
This option specifies that the output generated by the assembler
should be marked as being encoded for a big-endian processor.
'-EL'
This option specifies that the output generated by the assembler
should be marked as being encoded for a little-endian processor -
this is the default.
'-mcode-density'
This option turns on Code Density instructions. Only valid for ARC
EM processors.
'-mrelax'
Enable support for assembly-time relaxation. The assembler will
replace a longer version of an instruction with a shorter one,
whenever it is possible.
'-mnps400'
Enable support for NPS-400 extended instructions.
'-mspfp'
Enable support for single-precision floating point instructions.
'-mdpfp'
Enable support for double-precision floating point instructions.
'-mfpuda'
Enable support for double-precision assist floating point
instructions. Only valid for ARC EM processors.
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as: ARC Syntax