How can I add '-cpu=v850' with GreenHills compiler

Usage
1

Hello,
I want to creat top-gpj like this:

#!gbuild
primaryTarget=v800_standalone.tgt
#component top_level_project
[Project]
	-bsp generic
	-cpu=v850
	-G
	-object_dir=objs
	:sourceDir=.
src_hello_cc\hello_cc.gpj		[Program]
src_hello\hello.gpj		[Program]
tgt\resources.gpj		[Project]

This is the cmake command I use：

cmake -G "Green Hills MULTI" -T comp_201655 -A v800 -D GHS_TARGET_PLATFORM=standalone -S . -B build

Here is the generated top.gpj file:

#!gbuild
#
# CMAKE generated file: DO NOT EDIT!
# Generated by "Green Hills MULTI" Generator, CMake Version 3.24
#

macro PROJ_NAME=CMakeTest
primaryTarget=v800_standalone.tgt
customization=D:/Projects/GHS/CMakeTest/build/CMakeFiles/custom_rule.bod
customization=D:/Projects/GHS/CMakeTest/build/CMakeFiles/custom_target.bod
[Project]
# Top Level Project File
ALL_BUILD.tgt.gpj [Project]
RERUN_CMAKE.tgt.gpj [Project]
CMakeTest.tgt.gpj [Project]

Could you please help?