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32-Bit Opcode Maps
G-3No Unit Specified Instructions and Opcode MapsSPRU733
G.3 32-Bit Opcode Maps
The C67x CPU 32-bit opcodes used in the no unit instructions are mapped in
Figure G−1 through Figure G−3.
Figure G−1. Loop Buffer Instruction Format
31 292827 2322 181716 131211109876543210
creg z cstb csta 1 op 0 0 0 0 0 0 0 0 0 0 0 s p
3 1 5 5 4 1 1
Figure G−2. NOP and IDLE Instruction Format
31 29 28 27 18 17 16 13 12 11 10 9 8 7 6 5 4 3 2 1 0
0 0 0 1 Reserved (0) 0 op 0 0 0 0 0 0 0 0 0 0 0 s p
10 4 1 1
Figure G−3. Emulation/Control Instruction Format
31 292827 2322 181716 131211109876543210
creg z Reserved (0) cst5 0 op 0 0 0 0 0 0 0 0 0 0 0 s p
3 1 5 5 4 1 1