Holonomic problems in RobotC

You are using EasyC calls in RobotC.

http://help.robotc.net/WebHelpVEX/index.htm#Resources/topics/VEX_Cortex/ROBOTC/Remote_Control/vexRT-Ch.htm%3FTocPath%3DCommand%2520Library%2520-%2520VEX%2520Cortex|ROBOTC|Remote%2520Control|_____1

You want the VexRT command.

Look in the robotc help file.