1 reply to this topic

[nesaha]

Impulse Codev supports fixed point arithmetics for only 8,16 & 32 bits. How can I implement fixed point multiplications for 64bit integers?

[meix]

If your platform has 32-bit datawidth, you can use 32-bit fixed-point macros to define a 64-bit macro in co_math.h. These macros are currently defined for basic operations on the bitwidths that correspond to the standard C types (8, 16, 32 bits), but there's no reason you can't write your own for 64-bit numbers.

meix