COP1
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COP1 is the nomenclature for PSP's CPU Floating Point Unit, or shortly FPU.
Specifications
PSP's COP1 can only operate with 32-bit single precision floating-point numbers, it does not support 64-bit floating-point numbers.
- It has 32 32-bit registers (
$f0-$f31). - It is IEEE 754 compliant.
Operations execution time
| Operation | Time (in cycles) |
|---|---|
| Square root (sqrt) | 28 cycles |
| Division (div) | 28 cycles |
| ... (most others) | 1 cycle |