Support for ARM Architecture v6.

Compliance with the ABI for the ARM Architecture (base standard) [BSABI]. For more information, see http://www.arm.com.

For floating-point exceptions to occur, you must select --fpmode ieee_full. This is because the default setting is now --fpmode std and so floating-point exceptions are not generated by default.

Support for double dashes "--" to indicate command-line keywords (for example, --cpp).