AM68A: C7X MATHLIB double precision

Hi Matt,

Steps to Migrate C66x Source Code to C7x:

Reference : https://www.ti.com/lit/ug/spruig5e/spruig5e.pdf

1. Analyze Existing C66x Source Code : Go through the logic and implementation of the current C66x code. The acosdp implementation is available at  :mathlib_c66x_3_1_2_4\packages\ti\mathlib\src\acosdp.

2.Set Up the C7x Development Environment ((if it’s not already installed):

• Download and install the C7x Code Generation Tools (CGT) from here..
• Refer to the C7x Math Library implementation for acossp (single-precision arccos) at "mathlib\src\MATHLIB_acos" to understand the folder structure and API's used.

3. Apply C7x-Specific Optimizations: Leverage vectorization and streaming engine features for performance improvements. (Training Material Link is attached below)

4. Replace C66x Intrinsic with C7x Equivalents :

• Based on the logic replace the C66x-specific intrinsic with corresponding C7x intrinsic
• Use the C7x Instruction Set Architecture (ISA) documentation available at https://software-dl.ti.com/jacinto7/esd/processor-sdk-rtos-jacinto7/06_01_01_12/index_FDS.html for guidance.

Regards,

Betsy Varughese