Next: Supporting multiple outstanding FP operations Up: Pipelining With Multicycle Operations Previous: FP arithmetic components

Example: R4000 FPU

tabular223

Table shows FP stages needed by each FP inst tex2html_wrap_inline878 in each cycle: 

 U: Unpack FP numbers


S: 		 Operand shift


A: 		 Mantissa add


R: 		 Rounding


E: 		 Exception test


M: 		 First stage of multiplier


N: 		 Second stage of multiplier


D: 		 Divide stage

Paul H J Kelly Mon Dec 1 20:07:28 GMT 1997