cpu/sh2a/fpu.c

96 	unsigned int ix, iy;
101 	iy = hy & 0x7fffffff;
102 	if (iy < 0x00800000 || ix == 0)
105 	exp = (iy & 0x7f800000) >> 23;
107 	iy = (iy & 0x007fffff) | 0x00800000;
108 	m = (unsigned long long)ix * iy;
163 	unsigned long long ix, iy;
168 	iy = hy & 0x7fffffffffffffffLL;
169 	if (iy < 0x0010000000000000LL || ix == 0)
172 	exp = (iy & 0x7ff0000000000000LL) >> 52;
174 	iy = (iy & 0x000fffffffffffffLL) | 0x0010000000000000LL;
175 	mult64(ix, iy, &mh, &ml);
199 /* ix - iy where iy: denormal and ix, iy >= 0 */
200 static int denormal_subf1(unsigned int ix, unsigned int iy)
206 		return ix - iy;
211 	iy >>= exp - 1;
212 	if (iy == 0)
216 	frac -= iy;
226 /* ix + iy where iy: denormal and ix, iy >= 0 */
227 static int denormal_addf1(unsigned int ix, unsigned int iy)
233 		return ix + iy;
238 	iy >>= exp - 1;
239 	if (iy == 0)
243 	frac += iy;
254 	unsigned int ix, iy;
260 		iy = hy & 0x7fffffff;
261 		if (iy < 0x00800000) {
262 			ix = denormal_subf1(ix, iy);
268 			ix = denormal_subf1(iy, ix);
274 		iy = hy & 0x7fffffff;
275 		if (iy < 0x00800000)
276 			ix = denormal_addf1(ix, iy);
278 			ix = denormal_addf1(iy, ix);
284 /* ix - iy where iy: denormal and ix, iy >= 0 */
285 static long long denormal_subd1(unsigned long long ix, unsigned long long iy)
291 		return ix - iy;
296 	iy >>= exp - 1;
297 	if (iy == 0)
301 	frac -= iy;
311 /* ix + iy where iy: denormal and ix, iy >= 0 */
312 static long long denormal_addd1(unsigned long long ix, unsigned long long iy)
318 		return ix + iy;
323 	iy >>= exp - 1;
324 	if (iy == 0)
328 	frac += iy;
339 	unsigned long long ix, iy;
345 		iy = hy & 0x7fffffffffffffffLL;
346 		if (iy < 0x0010000000000000LL) {
347 			ix = denormal_subd1(ix, iy);
353 			ix = denormal_subd1(iy, ix);
359 		iy = hy & 0x7fffffffffffffffLL;
360 		if (iy < 0x0010000000000000LL)
361 			ix = denormal_addd1(ix, iy);
363 			ix = denormal_addd1(iy, ix);