SarahW
717d815604
Tweak flat DS/SS dynarec optimisation, should reduce block churn when routines are called both with and without flat DS/SS.
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Fixed incorrect STACK32 flag when entering V86 mode that was hidden by block churn.
Protected and V86 mode status now considered when selecting block.
2017-11-15 21:55:27 +00:00
SarahW
51ed6ea341
Protected mode improvements :
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- LTR now sets TSS state to busy
- LMSW preserves ET bit in CR0
- Fixed PC size in 16-bit system segment on CALL/JMP
Patch from Greatpsycho
2017-07-16 15:51:19 +01:00
SarahW
4cb5ddd7f7
Implemented undocumented F6/1 and F7/1 TEST instructions.
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Implemented undocumented F1 LOCK and ICEBP instructions.
Implemented missing 286 LOADALL functionality.
SMSW now sets all 12 bits to 1 on 286.
Patch from Greatpsycho.
2017-04-28 18:47:38 +01:00
SarahW
2b892d2a7a
Fixed compiler warnings for Windows builds.
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Added -Werror to Windows makefiles.
2017-04-11 19:34:41 +01:00
SarahW
1b73963997
Added prefetch timing approximation for 286/386 CPUs, with configurable memory timing.
2016-11-25 21:32:02 +00:00
SarahW
eb126fd822
Moved more variables into cpu_state structure.
2016-08-21 21:28:23 +01:00
SarahW
c664682758
Move some more variables into cpu_state structure. Minor speedup (~2%).
2016-08-17 21:28:16 +01:00
SarahW
535604b760
Pack decoded ModR/M data into a single word - minor recompiler speedup.
2016-08-14 16:29:54 +01:00
SarahW
c81a91fd72
Moved integer registers, PC and flags_* variables into new cpu_state structure. Reduces recompiled code size slightly, small speedup (1-3%).
2016-04-20 21:39:41 +01:00
TomW
cffa5a9926
SIDT always stores 32-bit base on 386+. Fixes OS/2 2.0.
2015-08-11 20:44:16 +01:00
TomW
95640bb4bb
SGDT now stores all 32 bits of the base address, even in 16-bit mode. Fixes Win32s.
2015-01-18 15:36:30 +00:00
TomW
2905c43db8
Cycle counts for recompiled blocks now generated at compile time.
2014-11-12 19:33:49 +00:00
TomW
4676daade4
Initial commit of dynamic recompiler.
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Various CPU changes to support dynamic recompiler.
2014-11-05 21:24:16 +00:00
TomW
20581186b9
Fixed SGDT/SIDT on 286, Windows 3.0 detects CPU correctly again.
2014-09-05 21:40:21 +01:00
TomW
f822488656
Add missing files from last commit.
2013-05-27 19:56:33 +01:00
