msm-webgpu 0.1.0

Multi-Scalar Multiplication (MSM) implementation for WebGPU.
Documentation 
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{{> structs }}
{{> montgomery_product_funcs }}
{{> field_funcs }}
{{> bigint_funcs }}
{{> barrett_funcs }}
@group(0) @binding(0)
var<storage, read_write> a: BigInt;
@group(0) @binding(1)
var<storage, read_write> b: BigInt;
@group(0) @binding(2)
var<storage, read_write> result: BigInt;

@compute @workgroup_size(1)
fn test_field_mul(
    @builtin(global_invocation_id) global_id: vec3<u32>,
    @builtin(local_invocation_id) local_id: vec3<u32>
) {
    /// Convert x and y coordinates to Montgomery form.
    var r = get_r();
    var x = a;
    var x_r = field_mul(&x, &r);
    var y = b;  
    var y_r = field_mul(&y, &r);
    var tmp = montgomery_product(&x_r, &y_r);

    var rinv = get_rinv();
    result = field_mul(&tmp, &rinv);
}


@compute @workgroup_size(1)
fn test_field_add(
    @builtin(global_invocation_id) global_id: vec3<u32>,
    @builtin(local_invocation_id) local_id: vec3<u32>
) {
    var x = a;
    var y = b;
    result = field_add(&x, &y);
}

@compute @workgroup_size(1)
fn test_field_sub(
    @builtin(global_invocation_id) global_id: vec3<u32>,
    @builtin(local_invocation_id) local_id: vec3<u32>
) {
    var x = a;
    var y = b;
    result = field_sub(&x, &y);   
}

@compute @workgroup_size(1)
fn test_barret_mul(
    @builtin(global_invocation_id) global_id: vec3<u32>,
    @builtin(local_invocation_id) local_id: vec3<u32>
) {
    /// Convert x and y coordinates to Montgomery form.
    var r = get_r();
    var x = a;
    var x_r = field_mul(&x, &r);
    var rinv = get_rinv();
    result = field_mul(&x_r, &rinv);
}