Jonathan Campbell
c487bdd002
cleanup
2025-01-23 17:20:00 -08:00
Jonathan Campbell
4e21a21b39
Paging cleanup
2025-01-22 12:04:20 -08:00
Jonathan Campbell
2296d2f4fc
Paging cleanup
2025-01-22 11:39:38 -08:00
Jonathan Campbell
4c0f6171c0
Paging define TLB entry data type and bit masks as bit positions for future cleanup. Some of the paging fields do not need to be Bitu, they only need 32 bits
2025-01-22 00:16:12 -08:00
Jonathan Campbell
1bf0296976
Paging: HostRead/HostWrite method parameter should be 32-bit page frame number, not Bitu
2025-01-18 13:28:45 -08:00
Jonathan Campbell
588f195328
PAGING: Cleanup, remove non-USE_FULL_TLB code
2025-01-18 13:07:31 -08:00
Jonathan Campbell
40bf81d6b9
Begin SVGA vmemdelay
2024-12-29 09:57:22 -08:00
Jonathan Campbell
a8a2d648ea
Expand paging to the logical maximum, 40-bit PSE. That is as far as we will go. Any further expansion would require Paging TLBs to become 64-bit entries and by that point you should probably use VirtualBox or QEMU to run your mega-gigabyte possibly terabyte VM anyway.
2024-12-24 22:55:00 -08:00
Jonathan Campbell
fcd3d77e6a
Begin some conversion of the code to clarify which memory addresses are linear, and which are physical, and add some explanation
2024-12-24 22:47:28 -08:00
Jonathan Campbell
dfcdf78581
Paging: constant move to header, describe functions a bit
2024-12-24 21:12:54 -08:00
Jonathan Campbell
946dc5c97c
If debug mode is going to complain about "Illegal read/write" outside the bounds of system memory, at least show the physical memory address alongside the linear address to make the debug message more useful
2024-12-16 07:36:05 -08:00
Jonathan Campbell
887d29ac4a
Paging: Define struct for 4MB PSE PDT page
2024-12-15 09:56:53 -08:00
Jonathan Campbell
dcdbbefa35
PDE code in paging.cpp should use dirblock, not block
2024-12-15 09:41:43 -08:00
Jonathan Campbell
cd46a30edf
Some code cleanup in paging.cpp. Add separate struct definition for PDE vs PTE. Add notes regarding D (Dirty) bit in PDEs on Pentium and higher CPUs. It seems while 386/486 defined a D bit for PTE and PDE, the Pentium gave up on the D bit for PDE, though for PSE 4MB pages the PDE still has a D bit.
2024-12-15 09:38:06 -08:00
Jonathan Campbell
a3d5073a2b
Begin work on PSE (Page Size Extension) emulation. Limit the enable only to Pentium or higher. Reportedly Intel added it to the original Pentium but did not document it until the Pentium Pro or Pentium II
2024-12-15 08:51:31 -08:00
Jaak Ristioja
39906a9399
Add override keyword, clean up virtual keyword
...
Also removed virtual and override keywords from destructors which already
override.
2024-03-21 21:45:16 +02:00
RainRat
902ce67fad
fix typos
2024-02-28 19:08:20 -08:00
Allofich
1e28b87fa8
Put #include statements before any code
...
Untangle the output .h file #include statements from sdlmain.h
2023-04-05 21:10:33 +09:00
Allofich
9970fbb1be
Use class initialization and initialization lists
2023-04-05 15:10:00 +09:00
Allofich
4d7be1c15b
Remove redundant #ifndef conditionals for includes
2021-08-22 15:13:27 +09:00
Allofich
fea9f20adf
Remove unneeded includes
2021-06-09 11:11:04 +09:00
Allofich
67ebe980a7
Remove unneeded includes
2021-06-06 04:39:54 +09:00
Jonathan Campbell
39a31f2ba7
CPU normal core: Add segment limit check exception handling to MOVSB, MOVSW, MOVSD, and make it throw a C++ exception while restoring CPU state properly. This should fix any glitches the previous hackery caused and help resolve crashes. It should also resolve any rendering errors in Windows 3.1 if using the S3 86C928 driver, which uses segment limit exceptions to fake a linear framebuffer from hardware that can only bank switch
2021-04-14 16:41:44 -07:00
Allofich
9294d450ec
SVN r4412
...
Update copyright.
2021-03-06 21:18:08 +09:00
Wengier
39cea90974
re-add dynamic x86 core
2020-10-12 02:17:44 -04:00
Emmanuel Gil Peyrot
c0a106535e
Replace Bit32u with uint32_t
2020-09-28 17:14:35 +02:00
Emmanuel Gil Peyrot
a431d81213
Replace Bit16u with uint16_t
2020-09-28 17:14:35 +02:00
Emmanuel Gil Peyrot
35f38f3ebe
Replace Bit8u with uint8_t
2020-09-28 17:14:35 +02:00
rderooy
608a657b50
Update copyright year for dosbox and dosbox-x assets and update FSF address
2020-06-25 08:42:32 +02:00
Allofich
038566362e
Fix Cppcheck funcArgNamesDifferent warnings
2019-10-21 22:08:39 +09:00
Jonathan Campbell
1972872e82
GCC -Wsign-conversion fixes
2019-07-20 01:46:30 -07:00
Allofich
1870426f8b
Revert SVN r4206
2019-06-18 22:21:38 +09:00
Jonathan Campbell
13646fc615
Merge pull request #1141 from Allofich/warnings3
...
Cleanup
2019-06-15 08:53:57 -07:00
Allofich
8598f90386
Remove undefined function declarations
2019-06-15 20:13:21 +09:00
Allofich
62fed560b4
Fix uninitialized variable warnings
...
Also fix a NULL dereference warning
2019-06-14 22:40:22 +09:00
Allofich
15338b598d
SVN r4206
...
Store whether generated code is 16- or 32-bit, so this information can be
used when checking for self-modifying code. Some code is identical
except for being 32- or 16-bit. Fixes some hard to reproduce problems
with small codeblocks.
2019-06-08 18:12:09 +09:00
Allofich
d4f43f6e1b
SVN r4185
...
Make WORDS_BIGENDIAN check consistent, include right header for memset,
correct one-off error in paging table size compare for when not using
USE_FULL_TLB
2019-06-03 23:50:45 +09:00
Allofich
d84a812743
SVN r4183 (second half)
...
Update year
2019-06-03 23:01:41 +09:00
Allofich
05619dd023
SVN r4183 (first half)
...
Update address of FSF
2019-06-03 22:54:46 +09:00
Jonathan Campbell
83607f52fd
#if 0 out the deprecation hack, in case VS2017 or CLANG/LLVM does not like it. It can be reenabled if needed. GCC likes it anyway.
2019-06-02 18:53:26 -07:00
Jonathan Campbell
33329bb414
Resolve any function prototype failure to update by changing the page handler class so the older function prototype causes a compiler error
2019-06-02 18:49:47 -07:00
Jonathan Campbell
de8f8a17b0
Reapply Allofich page handler typecast change, the problem was that the S3 MMIO page handler had not been updated with the new virtual method function prototype
2019-06-02 18:41:15 -07:00
Jonathan Campbell
9d1c3d2c33
Revert part of Allofich's typecast fixes concerning memory handling because for yet unknown reasons it breaks the Windows 3.1 S3 SVGA driver and S3 emulation. Reverted changes are preserved as a patch file
2019-06-02 09:50:27 -07:00
Allofich
402a9f4af7
Fix value conversion warnings
2019-06-02 11:08:33 +09:00
Jonathan Campbell
fa96598cf2
more
2018-05-25 08:54:15 -07:00
Jonathan Campbell
e9046eb2f5
more cleanup
2018-05-25 08:42:08 -07:00
Jonathan Campbell
781d5d50cc
cleanup: ignored const type qualifier
2018-05-21 11:37:48 -07:00
Jonathan Campbell
96e0652c80
Remove enable flag entirely
2018-03-02 15:18:57 -08:00
Jonathan Campbell
36f127d4a0
mem page callback, start the code
2017-05-06 14:41:43 -07:00
Jonathan Campbell
ffbad0b2b3
svn mainline r3878:
...
Year update.
2015-01-25 21:13:25 -08:00
