picoChip Options (Using the GNU Compiler Collection (GCC)) (original) (raw)

Set the instruction set, register set, and instruction scheduling parameters for array element type ae_type. Supported values for ae_type are ‘ANY’, ‘MUL’, and ‘MAC’.

-mae=ANY selects a completely generic AE type. Code generated with this option runs on any of the other AE types. The code is not as efficient as it would be if compiled for a specific AE type, and some types of operation (e.g., multiplication) do not work properly on all types of AE.

-mae=MUL selects a MUL AE type. This is the most useful AE type for compiled code, and is the default.

-mae=MAC selects a DSP-style MAC AE. Code compiled with this option may suffer from poor performance of byte (char) manipulation, since the DSP AE does not provide hardware support for byte load/stores.