MipScope/mipscope — Issue #7: MipScope does not support writing to $0
Author: AGWA
Created: 2011-11-21 06:52:35+00:00
State: open

In essence, writes to $0 should be discarded. This is important if you want an instruction to be executed but need to ignore the result. For example:

div $0, $t0, $t1

is useful if you want to calculate $t0 div $t1 and store the quotient and remainder in LO and HI, but not modify any general-purpose registers.