< Assembler Command Options / Object Options >
The default for this option is fpu when the Instruction-code set as the ISA *1.
The default for this option is nofpu (when RX200 is selected as the target CPU *2) or fpu (in other cases).
*1) This means a selection by the -isa option or the ISA_RX environment variable.
*2) This means a selection by the -cpu option or the CPU_RX environment variable.
This option is used to generate a relocatable file which is not capable of containing FPU instructions. |
When this option is specified, writing of floating-point operation instructions or FPSW as a control register will cause an error. |