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* Remove prototype of x86emu_init_default.Xin LI2022-02-271-2/+0
| | | | | | It's removed in 3219f535d98a (r198251) as part of code refactor. MFC after: 2 weeks
* Optimize ROL and ROR emulations and fix comments.Jung-uk Kim2016-02-181-19/+15
| | | | Notes: svn path=/head/; revision=295776
* Silence VPS-Studio errors (V646). These is no functional change.Jung-uk Kim2016-02-181-3/+3
| | | | Notes: svn path=/head/; revision=295775
* Sync with OpenBSD: Use volatile instead of __volatile__.Xin LI2015-04-131-2/+2
| | | | | | | MFC after: 2 weeks Notes: svn path=/head/; revision=281502
* Fix decoding of near CALL when address-size prefix (67h) is present.Xin LI2014-06-111-6/+13
| | | | | | | | | Submitted by: Wolf Ramovsky <wolf.ramovsky gmail.com> via core (peter) MFC after: 2 weeks Notes: svn path=/head/; revision=267374
* Fix decoding of LEA when address-size prefix (67h) is present.Xin LI2014-06-111-8/+11
| | | | | | | | | | | | This is loosly based on Xorg changeset f57bc0e by Christian Zander. Submitted by: Wolf Ramovsky <wolf.ramovsky gmail.com> via core (peter) MFC after: 2 weeks Notes: svn path=/head/; revision=267373
* Fix decoding of MOVSX.Xin LI2014-06-111-0/+1
| | | | | | | | | Submitted by: Wolf Ramovsky <wolf.ramovsky gmail.com> via core (peter) MFC after: 2 weeks Notes: svn path=/head/; revision=267372
* Integrate OpenBSD rev 1.5 of x86emu.c.Xin LI2010-03-091-143/+205
| | | | Notes: svn path=/head/; revision=204934
* Rewrite x86bios and update its dependent drivers.Jung-uk Kim2009-10-191-211/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Do not map entire real mode memory (1MB). Instead, we map IVT/BDA and ROM area separately. Most notably, ROM area is mapped as device memory (uncacheable) as it should be. User memory is dynamically allocated and free'ed with contigmalloc(9) and contigfree(9). Remove now redundant and potentially dangerous x86bios_alloc.c. If this emulator ever grows to support non-PC hardware, we may implement it with rman(9) later. - Move all host-specific initializations from x86emu_util.c to x86bios.c and remove now unnecessary x86emu_util.c. Currently, non-PC hardware is not supported. We may use bus_space(9) later when the KPI is fixed. - Replace all bzero() calls for emulated registers with more obviously named x86bios_init_regs(). This function also initializes DS and SS properly. - Add x86bios_get_intr(). This function checks if the interrupt vector is available for the platform. It is not necessary for PC-compatible hardware but it may be needed later. ;-) - Do not try turning off monitor if DPMS does not support the state. - Allocate stable memory for VESA OEM strings instead of just holding pointers to them. They may or may not be accessible always. Fix a memory leak of video mode table while I am here. - Add (experimental) BIOS POST call for vesa(4). This function calls VGA BIOS POST code from the current VGA option ROM. Some video controllers cannot save and restore the state properly even if it is claimed to be supported. Usually the symptom is blank display after resuming from suspend state. If the video mode does not match the previous mode after restoring, we try BIOS POST and force the known good initial state. Some magic was taken from NetBSD (and it was taken from vbetool, I believe.) - Add a loader tunable for vgapci(4) to give a hint to dpms(4) and vesa(4) to identify who owns the VESA BIOS. This is very useful for multi-display adapter setup. By default, the POST video controller is automatically probed and the tunable "hw.pci.default_vgapci_unit" is set to corresponding vgapci unit number. You may override it from loader but it is very unlikely to be necessary. Unfortunately only AGP/PCI/PCI-E controllers can be matched because ISA controller does not have necessary device IDs. - Fix a long standing bug in state save/restore function. The state buffer pointer should be ES:BX, not ES:DI according to VBE 3.0. If it ever worked, that's because BX was always zero. :-) - Clean up register initializations more clearer per VBE 3.0. - Fix a lot of style issues with vesa(4). Notes: svn path=/head/; revision=198251
* Use __FBSDID to embed RCS ID.Xin LI2009-09-212-2/+6
| | | | Notes: svn path=/head/; revision=197386
* Collapase interrupt supporting functions to a new module, and switch fromXin LI2009-09-211-33/+0
| | | | | | | | | | | | | x86emu to this new module. This changeset also brings a fix for bugs introduced with the initial x86emu commit, which prevents the user from using some display mode or cause instant reboots during mode switch. Submitted by: paradox <ddkprog yahoo com> Notes: svn path=/head/; revision=197383
* - Port x86emu to FreeBSD.Xin LI2009-09-093-23/+47
| | | | | | | | | | - Connect x86emu to build. Tested with: make universe Submitted by: swell.k at gmail com Notes: svn path=/head/; revision=197019
* Import x86emu from OpenBSD as of OPENBSD_4_6.Xin LI2009-09-094-0/+8905
Notes: svn path=/head/; revision=197009
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