Commit Graph

460 Commits

Author SHA1 Message Date
Stanislav Shwartsman
96984cb6cb Added missed fetchdecode table entry for SYSENTER/SYSEXIT 2003-06-20 08:58:12 +00:00
Stanislav Shwartsman
58efdfb31f An illegal lock prefix was not checked for instructions without any attributes (i.e. without immediate, modrm or any other additional bytes except prefixes). 2003-06-12 17:01:37 +00:00
Stanislav Shwartsman
8ee1b70016 Fixed compilation/linking problem 2003-06-11 14:50:09 +00:00
Volker Ruppert
2ef0c43c7d - description of ldtr fixed 2003-06-08 09:55:50 +00:00
Volker Ruppert
d1652093ac - applied some parts of the patch from Andrew Zabolotny <zap@cobra.ru>
* changed all %ll format descriptions to FMT_LL macro so that
    Microsoft Visual C works correctly (it uses %I64)
  * missing type conversions added
  * cdrom.cc: variable types for win32 fixed
  * removed some unused variables in eth_win32.cc and harddrv.cc
  * added missing includes in make_cmos_image.c and niclist.c
2003-06-07 19:16:55 +00:00
Stanislav Shwartsman
3c00944998 I hope this is the last one ... 2003-05-29 19:44:59 +00:00
Stanislav Shwartsman
56cc6469e3 Ops, missed one ... 2003-05-29 17:19:38 +00:00
Stanislav Shwartsman
f933d604d3 Fixed missed BxLockable for XCHG instruction 2003-05-29 17:15:08 +00:00
Stanislav Shwartsman
1024cb16ca Fixed denormal problem in fload64_add operation 2003-05-27 20:30:19 +00:00
Stanislav Shwartsman
b6ff1e6d9d dos2unix for softfloat
fixed denormals handling for MUL/DIV instructions
2003-05-26 19:30:33 +00:00
Stanislav Shwartsman
ab3320c6eb Fixed denormal operand handling for add/sub instructions 2003-05-26 19:00:19 +00:00
Stanislav Shwartsman
0cb847f6d3 Quite different implementation of DAZ feature
Fixed bugs in execution of float64 packed instructions (almost all instructions affected)
2003-05-26 18:06:09 +00:00
Stanislav Shwartsman
c82060a215 Fixed problem with compare unordered and denormals exceptions 2003-05-25 20:18:46 +00:00
Stanislav Shwartsman
39ab1d18ac Fixed compilation error 2003-05-23 08:49:55 +00:00
Stanislav Shwartsman
777e0db06b Fixed cpu.cc compilation error with ICache disabled
Added --enable-3dnow configuration option
2003-05-21 15:48:55 +00:00
Stanislav Shwartsman
140ff2541b Ability to configure x86-64 without 3DNOW 2003-05-21 15:20:51 +00:00
Stanislav Shwartsman
04ebd29f92 dos2unix fix 2003-05-19 15:02:47 +00:00
Stanislav Shwartsman
e5c647ad01 Removed unused some unused functions from softfloat 2003-05-18 03:52:18 +00:00
Stanislav Shwartsman
36a8c8a6ac Compare unordered relation also raises denormal 2003-05-17 18:11:22 +00:00
Stanislav Shwartsman
338e7b4fe2 DAZ support (still under validation) 2003-05-17 17:45:54 +00:00
Stanislav Shwartsman
7e7cbdba6f Bugdfix for pfp compare operation (affected 'greater_than' relation) 2003-05-17 14:49:21 +00:00
Stanislav Shwartsman
09b987a9e8 Denormals support for all SSE instructions 2003-05-17 09:08:18 +00:00
Stanislav Shwartsman
6fdecf77a1 New dependencies for CPU directory 2003-05-15 18:46:01 +00:00
Stanislav Shwartsman
928e20bd49 Changed some BX_INFO messages to BX_DEBUG 2003-05-15 18:32:27 +00:00
Stanislav Shwartsman
1d45167e5b Merged NEW-INSTRUCTIONS branch 2003-05-15 16:41:17 +00:00
Kevin Lawton
a17d06abcb Optimized the main cpu loop iCache checks to remove a redundant
check.

Commented out a number of instances of invalidate_prefetch_q(),
for branches which do not change CS since the EIP window mechanism
takes care of validating that EIP lands in the current page or not
in the main cpu loop anyways.

Fixed a couple cases (v8086 mode and real mode) of loading CS where
the EIP page window was not invalidated in segment_ctrl_pro.cc.
That may fix some aliasing problems reported before (OS2).
2003-05-10 22:25:55 +00:00
Christophe Bothamy
091052e199 - reverting to previous revision (xfer8 1.15, xfer16 1.21, xfer32 1.21)
as it breaks AMD64 support.
2003-05-08 17:56:48 +00:00
Christophe Bothamy
b3d16a48ef - apply another speedup patch from Conn Clark.
Notes from the author:
Here is another one of my speed up patches. Unlike my previous speedups
this one will help more platforms than just X86. It cleans up the Data
Xfer instructions. Since the Data Xfer instructions are the most often
executed instructions it gives a noticable boost in speed. The basic
optimization technique was to eliminate intermediate variables and pass
a pointer to the final destination or original source to the
read_virtual_whatever and the write_virtual_whatever functions.
2003-05-03 16:19:07 +00:00
Volker Ruppert
79b811f23f - fixed warnings in these files:
cpu/fetchdecode.cc
  cpu/mmx.cc
  cpu/proc_ctrl.cc
  iodev/virt_timer.cc
  plugin.cc
2003-05-02 12:22:48 +00:00
Christophe Bothamy
83b8bbedff - fix REX MOVB immediate for x86_64 (patch by Arnd Bergmann)
(bug [ 720776 ] REX MOVB immediate broken for x86_64)
2003-04-26 10:02:03 +00:00
Stanislav Shwartsman
fa623fda74 FPU tag word is 16bit only 2003-04-25 18:43:48 +00:00
Stanislav Shwartsman
88d433bb73 Implemented MASKMOVQ 2003-04-23 18:57:57 +00:00
Stanislav Shwartsman
3485368ead Ups, forgot smth ;) 2003-04-23 18:55:25 +00:00
Stanislav Shwartsman
ba2b84e604 Implemented MASKMOVQ and MASKMOVDQU instructions 2003-04-23 18:51:37 +00:00
Stanislav Shwartsman
446fca9ed0 Superfluous braces in initializers in fetchdecode.cc 2003-04-23 17:52:59 +00:00
Stanislav Shwartsman
d1d2fb34f0 Fixed number of compilation errors for FPU disabled case
Transfer fpu.cc from /fpu to /cpu
2003-04-22 20:21:34 +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
1d54caca9b Fixed compilation error 2003-04-09 19:20:05 +00:00
Stanislav Shwartsman
7db893970c Read attributes bits even for BxSplit11b opcodes
Move lock prefix check later in fetchdecode function when all attributes is ready.
2003-04-06 19:08:31 +00:00
Stanislav Shwartsman
a050c1ac7d Reserved cpu attribute bit for 3DNOW instructions decoding 2003-04-05 16:40:55 +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
1e71c9e56e Merged patch-unallowed-lock-cases patch.
According to the Intel manuals:

  The  LOCK  prefix  can be prepended only to the following instructions
  and  only  to  those  forms  of the instructions where the destination
  operand  is  a  memory operand: ADD, ADC, AND, BTC, BTR, BTS, CMPXCHG,
  CMPXCH8B,  DEC,  INC,  NEG, NOT, OR, SBB, SUB, XOR, XADD, and XCHG. If
  the  LOCK prefix is used with one of these instructions and the source
  operand  is a memory operand, an undefined opcode exception (#UD) will
  be  generated. An undefined opcode exception will also be generated if
  the  LOCK  prefix  is used with any instruction not in the above list.

 Checking of the LOCK prefix done in fetchDecode state and not overloads
 Bochs's execution.
2003-04-05 12:16:53 +00:00
Stanislav Shwartsman
8193a710ad Changed MMX/SSE/SSE2 diagnostic messages to be more informative 2003-03-21 20:33:23 +00:00
Stanislav Shwartsman
1224c2d307 #UD exception should be generated when using MOV_SwEw opcode for
loading CS register
2003-03-21 13:34:24 +00:00
Christophe Bothamy
1a518b81fe - add __attribute__((regparm(X))) performance trick with gcc on x86
on some cpu instructions (patch from Conn Clark)
- performance improvement is 1% on win95 boot
2003-03-17 00:41:01 +00:00
Peter Tattam
752caf8e21 x86-64 emulation
Fixed PUSHFW/POPFW for 64 bit mode. (was doing PUSHFQ/POPFQ)
2003-03-13 00:49:20 +00:00
Peter Tattam
2f9088a223 x86-64 emulation.
Fixed IRETD in 64 bit mode
2003-03-13 00:45:44 +00:00
Peter Tattam
530f482c79 x86-64 Update - Fixed bad JMP far indirect 2003-03-13 00:43:00 +00:00
Peter Tattam
cb492ae7b5 x86-64 emulation.
Perform Canonical Address Checking.

Only does basic checking (only offset, not offset+size-1)
2003-03-13 00:37:40 +00:00