Lines Matching refs:FPU

2  |  wm-FPU-emu   an FPU emulator for 80386 and 80486SX microprocessors.      |
25 wm-FPU-emu is an FPU emulator for Linux. It is derived from wm-emu387
31 My target FPU for wm-FPU-emu is that described in the Intel486
33 facets of the functioning of the FPU are not well covered in the
40 wm-FPU-emu does not implement all of the behaviour of the 80486 FPU,
56 ----------------------- Internals of wm-FPU-emu -----------------------
82 emulate each FPU instruction to completion without interruption.
99 ----------------------- Limitations of wm-FPU-emu -----------------------
101 There are a number of differences between the current wm-FPU-emu
102 (version 2.01) and the 80486 FPU (apart from bugs).  The differences
134 The FPU instruction may be (usually will be) loaded into the pre-fetch
136 destination of the 'movl' overlaps the FPU instruction then the bytes
137 in the prefetch queue and memory will be inconsistent when the FPU
159 ----------------------- Performance of wm-FPU-emu -----------------------
167 affected by the FPU instruction trap overhead.
174 ms-dos extender. The final column is for wm-FPU-emu in Linux 0.97,
177 function      Turbo C        djgpp 1.06        WM-emu387     wm-FPU-emu
203             wm-FPU-emu w     original w
225 ----------------------- Accuracy of wm-FPU-emu -----------------------
229 than that of an Intel 80486 FPU.
232 match those of an 80486 FPU. They are the best possible; the error for
260 ** The accuracy for exp() and log() is low because the FPU (emulator)
268 properly performing FPU cannot pass the 'paranoia' tests for 'double'
276 FPU). There is also now no degradation of accuracy for fcos and fptan
293 have a value of pi which had about 150 bits precision. The FPU
295 result is about -9.739715e-8). On the other hand, an 80486 FPU returns
299 pi/2) the emulator is more accurate than an 80486 FPU. For very large
305 good as the results from an 80486 FPU. From version 1.20, the accuracy
308 by an 80486 FPU.
338 Tests performed on an 80486 FPU showed results of lower accuracy. The
358 given in the second column. Unlike the emulator, an 80486 FPU returns