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EXAMPLE
MULF R0, R2, R4
ADDF R0, R6, R8
- When MULF is issued the register R0 will be marked with the identifier of
the multiply unit.
- Ordinarily, any following instruction which uses R0 would get its operand from
the multiply unit when it finishes, via the CDB.
- However, when the ADDF is issued, register R0 is marked with the identifier
tag of the adder.
- When the multiply completes, it will broadcast on the CDB, but no register or
FU will be interested.
Paul H J Kelly
Mon Dec 1 20:07:28 GMT 1997