assertEquals("swapLSBMSB=" + b, 1, a/b, 1e-10);
a = 8;
b = bm.swapLSBMSB(a);
assertEquals("swapLSBMSB=" + b, 2, a/b, 1e-10);
a = 3;
b = bm.invswapLSBMSB(a);
assertEquals("invswapLSBMSB=" + b, -4, b, 1e-10);
a = 8;
b = bm.invswapLSBMSB(a);
assertEquals("invswapLSBMSB=" + b, -5, b, 1e-10);