Filter
Top Products
Functional Unit Constraints
Pipeline4-48 SPRU733
4.3.3 .L-Unit Constraints
Table 4−32 shows the instruction constraints for single-cycle instructions
executing on the .L unit.
Table 4−32. Single-Cycle .L-Unit Instruction Constraints
Instruction Execution
Cycle 1 2
Single-cycle RW
Instruction Type
Subsequent Same-Unit Instruction Executable
Single-cycle
4-cycle
INTDP
ADDDP/SUBDP
Instruction Type
Same Side, Different Unit, Both Using Cross Path Executable
Single-cycle
DP compare
2-cycle DP
4-cycle
Load
Store
Branch
16 × 16 multiply
MPYI
MPYID
MPYDP
Legend: = E1 phase of the single-cycle instruction; R = Sources read for the instruction; W = Destinations written for the
instruction;
= Next instruction can enter E1 during cycle