TMS320F2800157: CPU cycles required to execute the instruction

Hi Team,

Here's an issue from the customer may need your help:

sTmpUint32_3 = sTmpUint32_1 - sTmpUint32_2;

The above line of code, the compiled assembly code is as follows.

The test found that running these assembly codes requires 6 CPU cycles (by using CCS-->Run-->Clock).

These instructions are all single-cycle instructions. They should only take 4 CPU cycles. Why do they actually take 6 CPU cycles?

0849dc: 761F0262 MOVW DP, #0x262
0849de: 0606 MOVL ACC, @0x6
0849df: 0308 SUBL ACC, @0x8
0849e0: 1E0A MOVL @0xa, ACC

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Thanks & Regards