sw_v1:
 C and ASM implementations for Plasma CPU
Revert "sw_v1:"

This reverts commit 52f907ab3f51c29d233762ee64264c9dafcf8f52.
Revert "Revert "sw_v1:""

This reverts commit 3704a5d560fe7638388243ac9d0007a35a34af56.