Arm Development Studio forum Which unit gives destination register number which is updating by execution unit

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Which unit gives destination register number which is updating by execution unit

Note: This was originally posted on 4th January 2010 at http://forums.arm.com

Hi,
If i want to update my destination register,i have to pass register number and data value which is updating that register.which unit will give the register number to register bank unit? Is it execution unit or decoder unit? If answer is execution unit then why?