212 	uint32_t left;  in des()  local
217 	left = ((uint32_t)block[0] << 24) |  in des()
237 	work = ((left >> 4) ^ right) & 0x0f0f0f0f;  in des()
239 	left ^= work << 4;  in des()
240 	work = ((left >> 16) ^ right) & 0xffff;  in des()
242 	left ^= work << 16;  in des()
243 	work = ((right >> 2) ^ left) & 0x33333333;  in des()
244 	left ^= work;  in des()
246 	work = ((right >> 8) ^ left) & 0xff00ff;  in des()
247 	left ^= work;  in des()
250 	work = (left ^ right) & 0xaaaaaaaa;  in des()
251 	left ^= work;  in des()
253 	left = (left << 1) | (left >> 31);  in des()
256 	F(left, right, ks);  in des()
257 	F(right, left, ks + 2);  in des()
258 	F(left, right, ks + 4);  in des()
259 	F(right, left, ks + 6);  in des()
260 	F(left, right, ks + 8);  in des()
261 	F(right, left, ks + 10);  in des()
262 	F(left, right, ks + 12);  in des()
263 	F(right, left, ks + 14);  in des()
264 	F(left, right, ks + 16);  in des()
265 	F(right, left, ks + 18);  in des()
266 	F(left, right, ks + 20);  in des()
267 	F(right, left, ks + 22);  in des()
268 	F(left, right, ks + 24);  in des()
269 	F(right, left, ks + 26);  in des()
270 	F(left, right, ks + 28);  in des()
271 	F(right, left, ks + 30);  in des()
275 	work = (left ^ right) & 0xaaaaaaaa;  in des()
276 	left ^= work;  in des()
278 	left = (left >> 1) | (left  << 31);  in des()
279 	work = ((left >> 8) ^ right) & 0xff00ff;  in des()
281 	left ^= work << 8;  in des()
282 	work = ((left >> 2) ^ right) & 0x33333333;  in des()
284 	left ^= work << 2;  in des()
285 	work = ((right >> 16) ^ left) & 0xffff;  in des()
286 	left ^= work;  in des()
288 	work = ((right >> 4) ^ left) & 0x0f0f0f0f;  in des()
289 	left ^= work;  in des()
297 	block[4] = left >> 24;  in des()
298 	block[5] = left >> 16;  in des()
299 	block[6] = left >> 8;  in des()
300 	block[7] = left;  in des()