Program Counter Values For B Irp - Texas Instruments TMS320C6000 Series Reference Manual

Delay Slots
Example
Table 3–11. Program Counter Values for B IRP
5
Table 3–11 gives the program counter values and actions for the following
code example.
Given that an interrupt occurred at
PC = 0000 1000
0000 0020 B
0000 0024 ADD
0000 0028 MPY
0000 002C NOP
0000 0030 SHR
0000 0034 ADD
0000 0038 ADD
Program Counter
Cycle
Value (Hex)
Cycle 0 0000 0020
Cycle 1 0000 0024
Cycle 2 0000 0028
Cycle 3 0000 002C
Cycle 4 0000 0030
Cycle 5 0000 0034
Cycle 6 0000 1000
Branch Using an Interrupt Return Pointer
IRP = 0000 1000
.S2 IRP
.S1 A0, A2, A1
.M1 A1, A0, A1
.S1 A1, 15, A1
.L1 A1, A2, A1
.L2 B1, B2, B3
TMS320C62x/C67x Fixed-Point Instruction Set
Action
Branch command executes
(target code fetched)
Branch target code executes
B IRP
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