Change the register mode

2.4.5 Change the register mode

Select the build tool node on the project tree and select the [Common Options] tab on the Property panel.

Select the register mode to on the [Register mode] property in the [Register Mode] category.

Figure 2.28

[Register mode] Property

You can select from the following register modes.

Register Mode	Working Registers	Registers for Register Variables
32-register mode(None)	r10 to r19	r20 to r29
22-register mode(-Xreg_mode=22)	r10 to r14	r25 to r29
Universal register mode(-Xreg_mode=common)	r10 to r14	r25 to r29

Remark

See "CC-RH Compiler User's Manual" for details about register modes.