Arbitrary-precision floating-point pipelined matrix multiplication implementation

Supports matrices with arbitrary widths and heights with arbitrary-precision floating-point numbers.

Project structure

src/: Contains module implementations and headers.
- float_*.v & float_macros.vh: Implmements the floating-point addition and the multiplication.
- vec_*.v & vec_macros.vh: Implements the vector addition and the dot product.
- mat_*.v & mat_macros.vh: Implements the matrix multiplication.
tb/: Contains testbenches.

Common module parameters (See `*_macros.vh`)

EXP_WIDTH: Number of exponent bits
MAN_WIDTH: Number of mantissa bits
BIAS: The bias of the exponent (e.g. -127 in IEEE 754 FP32 format, -1023 in IEEE 754 FP64 format)
VEC_SIZE: Number of elements in the vector

Macros (See `*_macros.vh`)

FLOAT_WIDTH: Total number of bits to represent one single floating-point number
VEC_WIDTH(size): Total number of bits to represent one single vector with the size size
VEC_SELECT(idx): The bit range assigned to the element with the given index idx
MAT_WIDTH(height, width): Total number of bits to represent one single matrix with height rows and width columns
MAT_SELECT(i, j): The bit range assigned to the element M_ij