These instructions are decoded and then placed into the integer, floating-point or load / store instruction queues depending on the type of the instruction.
12.
The R18000 improved the floating-point instruction queues and revised the floating-point unit to feature two multiply add units, quadrupling the peak FLOPS count.
13.
The BPU was capable of dispatching multiple instructions to the fixed and floating point instructions queues while it was executing a program flow control instruction ( up to four simultaneously and out of order ).
14.
Restrictions on instruction issue are few : of the two integer instruction queues, only one can accept one instruction, the other can accept up to four, as does the floating-point instruction queue.
15.
Restrictions on instruction issue are few : of the two integer instruction queues, only one can accept one instruction, the other can accept up to four, as does the floating-point instruction queue.
16.
The R12000 improved upon the R10000 microarchitecture by : inserting an extra pipeline stage to improve clock frequency by resolving a critical path; increasing the number of entries in the branch history table, improving prediction; modifying the instruction queues so they take into account the age of a queued instruction, enabling older instructions to be executed before newer ones if possible.
