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aureooms-js-integer

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integer code bricks for JavaScript

aureooms.github.io/js-integer

aureooms/js-integer

288 lines (236 loc) • 6.65 kB
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import test from 'ava' ; import array from 'aureooms-js-array' ; import * as integer from '../../../src' ; test('integer.bmul 16 big endian', function(assert){ var ia2a = function(a) { var o = []; var i = a.length; while(i--){ o[i] = a[i]; } return o; }; var r = Math.pow(2, 16); var num = Uint16Array; var fill = array.fill; var mov = array.copy; var bmul = integer.bmul_t(r); var a = new num(4), b = new num(4), c = new num(8); a[3] = 4; b[3] = 4; bmul(a, 0, 4, b, 0, 4, c, 0, 8); assert.deepEqual(ia2a(c), [0, 0, 0, 0, 0, 0, 0, 16], '4 * 4'); fill(c, 0, 8, 0); a[3] = 16; b[3] = 16; bmul(a, 0, 4, b, 0, 4, c, 0, 8); assert.deepEqual(ia2a(c), [0, 0, 0, 0, 0, 0, 0, 256], '16 * 16'); fill(c, 0, 8, 0); a[3] = 32; b[3] = 16; bmul(a, 0, 4, b, 0, 4, c, 0, 8); assert.deepEqual(ia2a(c), [0, 0, 0, 0, 0, 0, 0, 512], '32 * 16'); fill(c, 0, 8, 0); a[3] = 16; b[3] = 64; bmul(a, 0, 4, b, 0, 4, c, 0, 8); assert.deepEqual(ia2a(c), [0, 0, 0, 0, 0, 0, 0, 1024], '16 * 64'); fill(c, 0, 8, 0); }); test('integer.bmul 8 big endian', function(assert){ var ia2a = function(a) { var o = []; var i = a.length; while(i--){ o[i] = a[i]; } return o; }; var r = Math.pow(2, 8); var num = Uint8Array; var fill = array.fill; var mov = array.copy; var bmul = integer.bmul_t(r); var a = new num(4), b = new num(4), c = new num(8); a[3] = 4; b[3] = 4; bmul(a, 0, 4, b, 0, 4, c, 0, 8); assert.deepEqual(ia2a(c), [0, 0, 0, 0, 0, 0, 0, 16], '4 * 4'); fill(c, 0, 8, 0); a[3] = 16; b[3] = 16; bmul(a, 0, 4, b, 0, 4, c, 0, 8); assert.deepEqual(ia2a(c), [0, 0, 0, 0, 0, 0, 1, 0], '16 * 16'); fill(c, 0, 8, 0); a[3] = 32; b[3] = 16; bmul(a, 0, 4, b, 0, 4, c, 0, 8); assert.deepEqual(ia2a(c), [0, 0, 0, 0, 0, 0, 2, 0], '32 * 16'); fill(c, 0, 8, 0); a[3] = 16; b[3] = 64; bmul(a, 0, 4, b, 0, 4, c, 0, 8); assert.deepEqual(ia2a(c), [0, 0, 0, 0, 0, 0, 4, 0], '16 * 64'); fill(c, 0, 8, 0); a[3] = 255; b[3] = 255; bmul(a, 0, 4, b, 0, 4, c, 0, 8); assert.deepEqual(ia2a(c), [0, 0, 0, 0, 0, 0, 254, 1], '255 * 255'); mov(c, 4, 8, a, 0, 4); fill(c, 0, 8, 0); b[3] = 0; b[2] = 1; bmul(a, 0, 4, b, 0, 4, c, 0, 8); assert.deepEqual(ia2a(c), [0, 0, 0, 0, 0, 254, 1, 0], '255 * 255 * 256'); fill(c, 0, 8, 0); b[3] = 200; b[2] = 100; a[3] = 200; a[2] = 100; bmul(a, 0, 4, b, 0, 4, c, 0, 8); assert.deepEqual(ia2a(c), [0, 0, 0, 0, 39, 172, 220, 64], '25800 * 25800'); fill(c, 0, 8, 0); b[3] = 200; b[2] = 100; a[3] = 200; a[2] = 100; bmul(a, 2, 4, b, 2, 4, c, 0, 2); assert.deepEqual(ia2a(c), [220, 64, 0, 0, 0, 0, 0, 0], '25800 * 25800 c[0:2]'); fill(c, 0, 8, 0); b[3] = 200; b[2] = 100; a[3] = 200; a[2] = 100; bmul(a, 2, 4, b, 2, 4, c, 0, 1); assert.deepEqual(ia2a(c), [64, 0, 0, 0, 0, 0, 0, 0], '25800 * 25800 c[0:1]'); fill(c, 0, 8, 0); b[3] = 200; b[2] = 100; a[3] = 200; a[2] = 100; bmul(a, 3, 4, b, 3, 4, c, 0, 1); assert.deepEqual(ia2a(c), [64, 0, 0, 0, 0, 0, 0, 0], '200 * 200 c[0:1]'); fill(c, 0, 8, 0); b[3] = 200; b[2] = 100; a[3] = 200; a[2] = 100; bmul(a, 0, 4, b, 0, 4, c, 0, 0); assert.deepEqual(ia2a(c), [0, 0, 0, 0, 0, 0, 0, 0], '200 * 200 c[0:0]'); fill(c, 0, 8, 0); }); test('integer.bmul 8 big endian bound checks', function(assert){ var ia2a = function(a) { var o = []; var i = a.length; while(i--){ o[i] = a[i]; } return o; }; var sanebounds = function(a) { for(var i = -8; i < 0; ++i){ if(a[i] !== undefined) return false; } return true; }; var r = Math.pow(2, 8); var num = Uint8Array; var fill = array.fill; var mov = integer.wrapmov(array.copy); var bmul = integer.wrapbin(integer.bmul_t(r)); var a = new num(4), b = new num(4), c = new num(8); a[3] = 4; b[3] = 4; bmul(a, 0, 4, b, 0, 4, c, 0, 8); assert.deepEqual(ia2a(c), [0, 0, 0, 0, 0, 0, 0, 16], '4 * 4'); assert.true(sanebounds(c), 'sanebounds 4 * 4'); fill(c, 0, 8, 0); a[3] = 16; b[3] = 16; bmul(a, 0, 4, b, 0, 4, c, 0, 8); assert.deepEqual(ia2a(c), [0, 0, 0, 0, 0, 0, 1, 0], '16 * 16'); assert.true(sanebounds(c), 'sanebounds 16 * 16'); fill(c, 0, 8, 0); a[3] = 32; b[3] = 16; bmul(a, 0, 4, b, 0, 4, c, 0, 8); assert.deepEqual(ia2a(c), [0, 0, 0, 0, 0, 0, 2, 0], '32 * 16'); assert.true(sanebounds(c), 'sanebounds 32 * 16'); fill(c, 0, 8, 0); a[3] = 16; b[3] = 64; bmul(a, 0, 4, b, 0, 4, c, 0, 8); assert.deepEqual(ia2a(c), [0, 0, 0, 0, 0, 0, 4, 0], '16 * 64'); assert.true(sanebounds(c), 'sanebounds 16 * 64'); fill(c, 0, 8, 0); a[3] = 255; b[3] = 255; bmul(a, 0, 4, b, 0, 4, c, 0, 8); assert.deepEqual(ia2a(c), [0, 0, 0, 0, 0, 0, 254, 1], '255 * 255'); assert.true(sanebounds(c), 'sanebounds 255 * 255'); mov(c, 4, 8, a, 0, 4); fill(c, 0, 8, 0); b[3] = 0; b[2] = 1; bmul(a, 0, 4, b, 0, 4, c, 0, 8); assert.deepEqual(ia2a(c), [0, 0, 0, 0, 0, 254, 1, 0], '255 * 255 * 256'); assert.true(sanebounds(c), 'sanebounds 255 * 255 * 256'); fill(c, 0, 8, 0); b[3] = 200; b[2] = 100; a[3] = 200; a[2] = 100; bmul(a, 0, 4, b, 0, 4, c, 0, 8); assert.deepEqual(ia2a(c), [0, 0, 0, 0, 39, 172, 220, 64], '25800 * 25800'); assert.true(sanebounds(c), 'sanebounds 25800 * 25800'); fill(c, 0, 8, 0); b[3] = 200; b[2] = 100; a[3] = 200; a[2] = 100; bmul(a, 2, 4, b, 2, 4, c, 0, 2); assert.deepEqual(ia2a(c), [220, 64, 0, 0, 0, 0, 0, 0], '25800 * 25800 c[0:2]'); assert.true(sanebounds(c), 'sanebounds 25800 * 25800 c[0:2]'); fill(c, 0, 8, 0); b[3] = 200; b[2] = 100; a[3] = 200; a[2] = 100; bmul(a, 2, 4, b, 2, 4, c, 0, 1); assert.deepEqual(ia2a(c), [64, 0, 0, 0, 0, 0, 0, 0], '25800 * 25800 c[0:1]'); assert.true(sanebounds(c), 'sanebounds 25800 * 25800 c[0:1]'); fill(c, 0, 8, 0); b[3] = 200; b[2] = 100; a[3] = 200; a[2] = 100; bmul(a, 3, 4, b, 3, 4, c, 0, 1); assert.deepEqual(ia2a(c), [64, 0, 0, 0, 0, 0, 0, 0], '200 * 200 c[0:1]'); assert.true(sanebounds(c), 'sanebounds 200 * 200 c[0:1]'); fill(c, 0, 8, 0); b[3] = 200; b[2] = 100; a[3] = 200; a[2] = 100; bmul(a, 0, 4, b, 0, 4, c, 0, 0); assert.deepEqual(ia2a(c), [0, 0, 0, 0, 0, 0, 0, 0], '200 * 200 c[0:0]'); assert.true(sanebounds(c), 'sanebounds 200 * 200 c[0:0]'); fill(c, 0, 8, 0); b[3] = 200; b[2] = 100; a[3] = 200; a[2] = 100; bmul(a, -1, 4, b, 0, 4, c, 0, 3); assert.deepEqual(ia2a(c), [172, 220, 64, 0, 0, 0, 0, 0], '25800 * 25800 c[0:3]'); assert.true(sanebounds(c), 'sanebounds 25800 * 25800 c[0:3]'); fill(c, 0, 8, 0); b[3] = 200; b[2] = 100; a[3] = 200; a[2] = 100; mov(a, -1, 4, c, 0); assert.deepEqual(ia2a(c), [0, 0, 0, 100, 200, 0, 0, 0], 'mov(a, -1, 4, c, 0);'); assert.true(sanebounds(c), 'sanebounds mov(a, -1, 4, c, 0);'); fill(c, 0, 8, 0); });