fplib.cc (10104:ff709c429b7b) fplib.cc (10272:336c7d36ac00)
1/*
2* Copyright (c) 2012-2013 ARM Limited
3* All rights reserved
4*
5* The license below extends only to copyright in the software and shall
6* not be construed as granting a license to any other intellectual
7* property including but not limited to intellectual property relating
8* to a hardware implementation of the functionality of the software

--- 142 unchanged lines hidden (view full) ---

151{
152 uint64_t t0 = (uint64_t)(uint32_t)a * b;
153 uint64_t t1 = (t0 >> 32) + (a >> 32) * b;
154 *x0 = t1 << 32 | (uint32_t)t0;
155 *x1 = t1 >> 32;
156}
157
158static inline void
1/*
2* Copyright (c) 2012-2013 ARM Limited
3* All rights reserved
4*
5* The license below extends only to copyright in the software and shall
6* not be construed as granting a license to any other intellectual
7* property including but not limited to intellectual property relating
8* to a hardware implementation of the functionality of the software

--- 142 unchanged lines hidden (view full) ---

151{
152 uint64_t t0 = (uint64_t)(uint32_t)a * b;
153 uint64_t t1 = (t0 >> 32) + (a >> 32) * b;
154 *x0 = t1 << 32 | (uint32_t)t0;
155 *x1 = t1 >> 32;
156}
157
158static inline void
159mul64x64(uint64_t *x0, uint64_t *x1, uint64_t a, uint64_t b)
160{
161 uint64_t a0 = (uint32_t)a;
162 uint64_t a1 = a >> 32;
163 uint64_t b0 = (uint32_t)b;
164 uint64_t b1 = b >> 32;
165 uint64_t t1 = (a0 * b0 >> 32) + a1 * b0;
166 uint64_t t2 = a0 * b1;
167 uint64_t x = ((uint64_t)(uint32_t)t1 + (uint32_t)t2) >> 32;
168 x += t1 >> 32;
169 x += t2 >> 32;
170 x += a1 * b1;
171 *x0 = a * b;
172 *x1 = x;
173}
174
175static inline void
176add128(uint64_t *x0, uint64_t *x1, uint64_t a0, uint64_t a1, uint64_t b0,
177 uint64_t b1)
178{
179 *x0 = a0 + b0;
180 *x1 = a1 + b1 + (*x0 < a0);
181}
182
183static inline void

--- 2903 unchanged lines hidden --- 		159add128(uint64_t *x0, uint64_t *x1, uint64_t a0, uint64_t a1, uint64_t b0,
160 uint64_t b1)
161{
162 *x0 = a0 + b0;
163 *x1 = a1 + b1 + (*x0 < a0);
164}
165
166static inline void

--- 2903 unchanged lines hidden ---