Stanislav Shwartsman
1616539667
additional FPU changes
2003-08-01 09:32:33 +00:00
Stanislav Shwartsman
1d45167e5b
Merged NEW-INSTRUCTIONS branch
2003-05-15 16:41:17 +00:00
Stanislav Shwartsman
40bd4f138b
Little style changes
...
Elliminated i387_t alimit field (not used in FPU)
2003-04-16 18:38:53 +00:00
Stanislav Shwartsman
aa9152129c
Changes in i387 register file definition. Define common FPU/MMX register file.
2003-04-12 21:02:08 +00:00
Stanislav Shwartsman
216124c6c3
Send #MF exception for MMX instructions if there is a pending FPU exception
2003-04-05 12:49:14 +00:00
Stanislav Shwartsman
5222261080
Save/Restore FPU TOP-OF-STACK in FXSAVE/FXRSTOR instructions
2003-01-23 18:33:35 +00:00
Stanislav Shwartsman
e1b8e5b9f9
Fixed FTW save/restore in FXSAVE/FXRSTOR opcodes
2003-01-23 17:53:11 +00:00
Stanislav Shwartsman
3012e7c361
Fixed representation and aligment of FPU/MMX register(s).
...
Description/justification:
Endian Host byte order Guest (x86) byte order
======================================================
Little FFFFFFFFEEAAAAAA FFFFFFFFEEAAAAAA
Big AAAAAAEEFFFFFFFF FFFFFFFFEEAAAAAA
F - fraction/mmx
E - exponent
A - aligment
2002-11-30 17:15:59 +00:00
Stanislav Shwartsman
57fd94744d
Implemented MOVQ2DQ/MOVDQ2Q instructions
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Small fixes with MMX environment
2002-11-30 14:42:41 +00:00
Stanislav Shwartsman
194952a53d
Merged BOCHS-SSE branch
2002-10-16 17:37:35 +00:00
Kevin Lawton
66452e9898
Replaced tabs in cpu/*.{cc,h} files with spaces.
2002-10-04 17:04:33 +00:00
Bryce Denney
ac4e5bb6cf
- add sanity checks
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- don't allow MMX on cpu level < 5.
- require FPU support on cpu level >= 55
- don't allow MMX support without FPU support (moved this check from
cpu/i387.h to config.h)
2002-09-22 16:11:12 +00:00
Stanislav Shwartsman
a08834b7f7
MMX cannot be compiled without FPU
2002-09-21 17:24:24 +00:00
Bryce Denney
be659a09b3
- check in Stanislav Shwartsman's patch "bochs-mmx.patch-endian-support".
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He writes: Detailed description: MMX instruction set support.
Also supports BIG_ENDIAN systems. Tested on Solaris and HP1100.
- modified files:
configure.in cpu/Makefile.in cpu/cpu.h cpu/fetchdecode.cc
cpu/proc_ctrl.cc fpu/fpu_system.h fpu/wmFPUemu_glue.cc
- added files: cpu/i387.h cpu/mmx.cc
2002-09-09 16:11:25 +00:00
