Texas Instruments TMS320C67X/C67X+ DSP manual Bit Opcode Maps

32-Bit Opcode Maps

C.3 32-Bit Opcode Maps

The C67x CPU 32-bit opcodes used in the .D unit are mapped in Figure C−1 through Figure C−4.

Figure C−1. 1 or 2 Sources Instruction Format

31 29 28 27 23 22 18 17 13 12 7 6 5 4 3 2 1 0

creg

z

dst

src2

src1

op

1 0 0 0 0 s p

3 1 5 5 5 6 1 1

Figure C−2. Extended .D Unit 1 or 2 Sources Instruction Format

31 29 28 27 23 22 18 17 13 12 11 10 9 6 5 4 3 2 1 0

creg

z

dst

src2

src1

x 1 0

op

1 1 0 0 s p

3 1 5 5 5 1 4 1 1

Figure C−3. Load/Store Basic Operations

31 29 28 27 23 22 18 17 13 12 9 8 7 6 4 3 2 1 0

creg

z

src/dst

baseR

offsetR

mode

r y

op

1 0 s p

3 1 5 5 5 4 1 1 3 1 1

Figure C−4. Load/Store Long-Immediate Operations

31 29 28 27 23 22 8 7 6 4 3 2 1 0

creg

z

dst

offsetR

y

op

1 1 s p

3 1 5 15 1 3 1 1

SPRU733 .D Unit Instructions and Opcode Maps C-5