Intdp .L-Unit Instruction Hazards - Texas Instruments TMS320C6000 Series Reference Manual

Functional Unit Hazards
Table 6–14. INTDP .L-Unit Instruction Hazards
Cycle
INTDP
Instruction Type
Single-cycle
4-cycle
INTDP
ADDDP/SUBDP
Instruction Type
Single-cycle
DP compare
2-cycle DP
4-cycle
Load
Store
Branch
16
MPYI
MPYID
MPYDP
Legend:
6-32
Table 6–14 shows the instruction hazards for INTDP instructions executing on
the .L unit.
1
R
Xw
Xw
Same Side, Different Unit, Both Using Cross Path Executable
16 multiply
E1 phase of the single-cyle instruction
R Sources read for the instruction
W Destinations written for the instruction
Next instruction can enter E1 during cycle
Xw Next instruction cannot enter E1 during cycle–write hazard
Instruction Execution
2 3 4 5
W W
Subsequent Same-Unit Instruction Executable
Xw Xw
6