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6.3.2
.M-Unit Hazards
Table 6–7. 16
16 Multiply .M-Unit Instruction Hazards
Cycle
16
Instruction Type
16
4-cycle
MPYI
MPYID
MPYDP
Instruction Type
Single-cycle
Load
Store
DP compare
2-cycle DP
Branch
4-cycle
INTDP
ADDDP/SUBDP
Legend:
Table 6–7 shows the instruction hazards for 16
executing on the .M unit.
1
16 multiply
R
W
16 multiply
Same Side, Different Unit, Both Using Cross Path Executable
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
Instruction Execution
2
3
Subsequent Same-Unit Instruction Executable
Functional Unit Hazards
16 multiply instructions
TMS320C67x Pipeline
6-25
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