4q Fp Pf Data Type -

// Pack two Q4.12 values into one 32-bit "PF" type uint32_t pack_q4_12_pair(q4_12_t a, q4_12_t b) (uint32_t)(b & 0xFFFF);

// Convert Q4.12 back to float float q4_12_to_float(q4_12_t x) return (float)x / (1 << 12);

int main() float original = 3.14159f; q4_12_t fixed = float_to_q4_12(original); float restored = q4_12_to_float(fixed); 4q fp pf data type

return 0;

If you’ve recently stumbled across the term in a datasheet, DSP library, or legacy firmware comment, you might have scratched your head. It looks like someone fell asleep on the keyboard. // Pack two Q4

Since this is not a standard term in mainstream programming (C++, Java, Python, etc.), I have interpreted it through the lens of and Embedded Systems —where "4Q" and "FP/PF" are commonly used notation.

// Convert floating-point to Q4.12 q4_12_t float_to_q4_12(float x) return (q4_12_t)(x * (1 << 12)); // Convert floating-point to Q4

// Packing example uint32_t packed = pack_q4_12_pair(fixed, fixed); printf("Packed PF (32-bit): 0x%08X\n", packed);