COP2

COP2 is the nomenclature for PSP's CPU Vector Floating Point Unit, or shortly VFPU.

Specifications

• Functionality is similar to PS2's VFPU Macromode
• It is designed for vector and matrix operations.
• It supports some trigonometric functions, binary logarithm, square root, and others.
• It has 128 32-bit registers.
• Reconfigurable as scalar, vector or matrix.
• It can handle these types of numbers:
  • 32-bit IEEE 754 floating-point numbers.
  • 32-bit integer numbers.
  • 16-bit integer numbers.
  • 8-bit integer numbers.
  • 16-bit floating-point numbers (half-precision float).

Instructions

Instruction	Operation	Time (in cycles)
vmmul.q vd, vs, vt	4×4 matrix multiply	22 cycles

See also

• VFPU documentation by davidgfnet