This is repository of my old source code which isn't updated any more. Go to git.rot13.org for current projects!
Log of /upstream/0.4.0/src/devices
Directory Listing
Revision
25 -
Directory Listing
Modified
Mon Oct 8 16:20:03 2007 UTC
(16 years, 8 months ago)
by
dpavlin
0.4.0
Revision
24 -
Directory Listing
Modified
Mon Oct 8 16:19:56 2007 UTC
(16 years, 8 months ago)
by
dpavlin
Original Path:
trunk/src/devices
++ trunk/HISTORY (local)
$Id: HISTORY,v 1.1256 2006/06/23 20:43:44 debug Exp $
20060219 Various minor updates. Removing the old MIPS16 skeleton code,
because it will need to be rewritten for dyntrans anyway.
20060220-22 Removing the non-working dyntrans backend support.
Continuing on the 64-bit dyntrans virtual memory generalization.
20060223 More work on the 64-bit vm generalization.
20060225 Beginning on MIPS dyntrans load/store instructions.
Minor PPC updates (64-bit load/store, etc).
Fixes for the variable-instruction-length framework, some
minor AVR updates (a simple Hello World program works!).
Beginning on a skeleton for automatically generating documen-
tation (for devices etc.).
20060226 PPC updates (adding some more 64-bit instructions, etc).
AVR updates (more instructions).
FINALLY found and fixed the zs bug, making NetBSD/macppc
accept the serial console.
20060301 Adding more AVR instructions.
20060304 Continuing on AVR-related stuff. Beginning on a framework for
cycle-accurate device emulation. Adding an experimental "PAL
TV" device (just a dummy so far).
20060305 Adding more AVR instructions.
Adding a dummy epcom serial controller (for TS7200 emulation).
20060310 Removing the emul() command from configuration files, so only
net() and machine() are supported.
Minor progress on the MIPS dyntrans rewrite.
20060311 Continuing on the MIPS dyntrans rewrite (adding more
instructions, etc).
20060315 Adding more instructions (sllv, srav, srlv, bgtz[l], blez[l],
beql, bnel, slti[u], various loads and stores).
20060316 Removing the ALWAYS_SIGNEXTEND_32 option, since it was rarely
used.
Adding more MIPS dyntrans instructions, and fixing bugs.
20060318 Implementing fast loads/stores for MIPS dyntrans (big/little
endian, 32-bit and 64-bit modes).
20060320 Making MIPS dyntrans the default configure option; use
"--enable-oldmips" to use the old bintrans system.
Adding MIPS dyntrans dmult[u]; minor updates.
20060322 Continuing... adding some more instructions.
Adding a simple skeleton for demangling C++ "_ZN" symbols.
20060323 Moving src/debugger.c into a new directory (src/debugger/).
20060324 Fixing the hack used to load PPC ELFs (useful for relocated
Linux/ppc kernels), and adding a dummy G3 machine mode.
20060325-26 Beginning to experiment with GDB remote serial protocol
connections; adding a -G command line option for selecting
which TCP port to listen to.
20060330 Beginning a major cleanup to replace things like "0x%016llx"
with more correct "0x%016"PRIx64, etc.
Continuing on the GDB remote serial protocol support.
20060331 More cleanup, and some minor GDB remote progress.
20060402 Adding a hack to the configure script, to allow compilation
on systems that lack PRIx64 etc.
20060406 Removing the temporary FreeBSD/arm hack in dev_ns16550.c and
replacing it with a better fix from Olivier Houchard.
20060407 A remote debugger (gdb or ddd) can now start and stop the
emulator using the GDB remote serial protocol, and registers
and memory can be read. MIPS only for now.
20060408 More GDB progress: single-stepping also works, and also adding
support for ARM, PowerPC, and Alpha targets.
Continuing on the delay-slot-across-page-boundary issue.
20060412 Minor update: beginning to add support for the SPARC target
to the remote GDB functionality.
20060414 Various MIPS updates: adding more instructions for dyntrans
(eret, add), and making some exceptions work. Fixing a bug
in dmult[u].
Implementing the first SPARC instructions (sethi, or).
20060415 Adding "magic trap" instructions so that PROM calls can be
software emulated in MIPS dyntrans.
Adding more MIPS dyntrans instructions (ddiv, dadd) and
fixing another bug in dmult.
20060416 More MIPS dyntrans progress: adding [d]addi, movn, movz, dsllv,
rfi, an ugly hack for supporting R2000/R3000 style faked caches,
preliminary interrupt support, and various other updates and
bugfixes.
20060417 Adding more SPARC instructions (add, sub, sll[x], sra[x],
srl[x]), and useful SPARC header definitions.
Adding the first (trivial) x86/AMD64 dyntrans instructions (nop,
cli/sti, stc/clc, std/cld, simple mov, inc ax). Various other
x86 updates related to variable instruction length stuff.
Adding unaligned loads/stores to the MIPS dyntrans mode (but
still using the pre-dyntrans (slow) imlementation).
20060419 Fixing a MIPS dyntrans exception-in-delay-slot bug.
Removing the old "show opcode statistics" functionality, since
it wasn't really useful and isn't implemented for dyntrans.
Single-stepping (or running with instruction trace) now looks
ok with dyntrans with delay-slot architectures.
20060420 Minor hacks (removing the -B command line option when compiled
for non-bintrans, and some other very minor updates).
Adding (slow) MIPS dyntrans load-linked/store-conditional.
20060422 Applying fixes for bugs discovered by Nils Weller's nwcc
(static DEC memmap => now per machine, and adding an extern
keyword in cpu_arm_instr.c).
Finally found one of the MIPS dyntrans bugs that I've been
looking for (copy/paste spelling error BIG vs LITTLE endian in
cpu_mips_instr_loadstore.c for 16-bit fast stores).
FINALLY found the major MIPS dyntrans bug: slti vs sltiu
signed/unsigned code in cpu_mips_instr.c. :-)
Adding more MIPS dyntrans instructions (lwc1, swc1, bgezal[l],
ctc1, tlt[u], tge[u], tne, beginning on rdhwr).
NetBSD/hpcmips can now reach userland when using dyntrans :-)
Adding some more x86 dyntrans instructions.
Finally removed the old Alpha-specific virtual memory code,
and replaced it with the generic 64-bit version.
Beginning to add disassembly support for SPECIAL3 MIPS opcodes.
20060423 Continuing on the delay-slot-across-page-boundary issue;
adding an end_of_page2 ic slot (like I had planned before, but
had removed for some reason).
Adding a quick-and-dirty fallback to legacy coprocessor 1
code (i.e. skipping dyntrans implementation for now).
NetBSD/hpcmips and NetBSD/pmax (when running on an emulated
R4400) can now be installed and run. :-) (Many bugs left
to fix, though.)
Adding more MIPS dyntrans instructions: madd[u], msub[u].
Cleaning up the SPECIAL2 vs R5900/TX79/C790 "MMI" opcode
maps somewhat (disassembly and dyntrans instruction decoding).
20060424 Adding an isa_revision field to mips_cpu_types.h, and making
sure that SPECIAL3 opcodes cause Reserved Instruction
exceptions on MIPS32/64 revisions lower than 2.
Adding the SPARC 'ba', 'call', 'jmpl/retl', 'and', and 'xor'
instructions.
20060425 Removing the -m command line option ("run at most x
instructions") and -T ("single_step_on_bad_addr"), because
they never worked correctly with dyntrans anyway.
Freshening up the man page.
20060428 Adding more MIPS dyntrans instructions: bltzal[l], idle.
Enabling MIPS dyntrans compare interrupts.
20060429 FINALLY found the weird dyntrans bug, causing NetBSD etc. to
behave strangely: some floating point code (conditional
coprocessor branches) could not be reused from the old
non-dyntrans code. The "quick-and-dirty fallback" only appeared
to work. Fixing by implementing bc1* for MIPS dyntrans.
More MIPS instructions: [d]sub, sdc1, ldc1, dmtc1, dmfc1, cfc0.
Freshening up MIPS floating point disassembly appearance.
20060430 Continuing on C790/R5900/TX79 disassembly; implementing 128-bit
"por" and "pextlw".
20060504 Disabling -u (userland emulation) unless compiled as unstable
development version.
Beginning on freshening up the testmachine include files,
to make it easier to reuse those files (placing them in
src/include/testmachine/), and beginning on a set of "demos"
or "tutorials" for the testmachine functionality.
Minor updates to the MIPS GDB remote protocol stub.
Refreshing doc/experiments.html and gdb_remote.html.
Enabling Alpha emulation in the stable release configuration,
even though no guest OSes for Alpha can run yet.
20060505 Adding a generic 'settings' object, which will contain
references to settable variables (which will later be possible
to access using the debugger).
20060506 Updating dev_disk and corresponding demo/documentation (and
switching from SCSI to IDE disk types, so it actually works
with current test machines :-).
20060510 Adding a -D_LARGEFILE_SOURCE hack for 64-bit Linux hosts,
so that fseeko() doesn't give a warning.
Updating the section about how dyntrans works (the "runnable
IR") in doc/intro.html.
Instruction updates (some x64=1 checks, some more R5900
dyntrans stuff: better mul/mult separation from MIPS32/64,
adding ei and di).
Updating MIPS cpuregs.h to a newer one (from NetBSD).
Adding more MIPS dyntrans instructions: deret, ehb.
20060514 Adding disassembly and beginning implementation of SPARC wr
and wrpr instructions.
20060515 Adding a SUN SPARC machine mode, with dummy SS20 and Ultra1
machines. Adding the 32-bit "rd psr" instruction.
20060517 Disassembly support for the general SPARC rd instruction.
Partial implementation of the cmp (subcc) instruction.
Some other minor updates (making sure that R5900 processors
start up with the EIE bit enabled, otherwise Linux/playstation2
receives no interrupts).
20060519 Minor MIPS updates/cleanups.
20060521 Moving the MeshCube machine into evbmips; this seems to work
reasonably well with a snapshot of a NetBSD MeshCube kernel.
Cleanup/fix of MIPS config0 register initialization.
20060529 Minor MIPS fixes, including a sign-extension fix to the
unaligned load/store code, which makes NetBSD/pmax on R3000
work better with dyntrans. (Ultrix and Linux/DECstation still
don't work, though.)
20060530 Minor updates to the Alpha machine mode: adding an AlphaBook
mode, an LCA bus (forwarding accesses to an ISA bus), etc.
20060531 Applying a bugfix for the MIPS dyntrans sc[d] instruction from
Ondrej Palkovsky. (Many thanks.)
20060601 Minifix to allow ARM immediate msr instruction to not give
an error for some valid values.
More Alpha updates.
20060602 Some minor Alpha updates.
20060603 Adding the Alpha cmpbge instruction. NetBSD/alpha prints its
first boot messages :-) on an emulated Alphabook 1.
20060612 Minor updates; adding a dev_ether.h include file for the
testmachine ether device. Continuing the hunt for the dyntrans
bug which makes Linux and Ultrix on DECstation behave
strangely... FINALLY found it! It seems to be related to
invalidation of the translation cache, on tlbw{r,i}. There
also seems to be some remaining interrupt-related problems.
20060614 Correcting the implementation of ldc1/sdc1 for MIPS dyntrans
(so that it uses 16 32-bit registers if the FR bit in the
status register is not set).
20060616 REMOVING BINTRANS COMPLETELY!
Removing the old MIPS interpretation mode.
Removing the MFHILO_DELAY and instruction delay stuff, because
they wouldn't work with dyntrans anyway.
20060617 Some documentation updates (adding "NetBSD-archive" to some
URLs, and new Debian/DECstation installation screenshots).
Removing the "tracenull" and "enable-caches" configure options.
Improving MIPS dyntrans performance somewhat (only invalidate
translations if necessary, on writes to the entryhi register,
instead of doing it for all cop0 writes).
20060618 More cleanup after the removal of the old MIPS emulation.
Trying to fix the MIPS dyntrans performance bugs/bottlenecks;
only semi-successful so far (for R3000).
20060620 Minor update to allow clean compilation again on Tru64/Alpha.
20060622 MIPS cleanup and fixes (removing the pc_last stuff, which
doesn't make sense with dyntrans anyway, and fixing a cross-
page-delay-slot-with-exception case in end_of_page).
Removing the old max_random_cycles_per_chunk stuff, and the
concept of cycles vs instructions for MIPS emulation.
FINALLY found and fixed the bug which caused NetBSD/pmax
clocks to behave strangely (it was a load to the zero register,
which was treated as a NOP; now it is treated as a load to a
dummy scratch register).
20060623 Increasing the dyntrans chunk size back to
N_SAFE_DYNTRANS_LIMIT, instead of N_SAFE_DYNTRANS_LIMIT/2.
Preparing for a quick release, even though there are known
bugs, and performance for non-R3000 MIPS emulation is very
poor. :-/
Reverting to half the dyntrans chunk size again, because
NetBSD/cats seemed less stable with full size chunks. :(
NetBSD/sgimips 3.0 can now run :-) (With release 0.3.8, only
NetBSD/sgimips 2.1 worked, not 3.0.)
============== RELEASE 0.4.0 ==============
Revision
22 -
Directory Listing
Modified
Mon Oct 8 16:19:37 2007 UTC
(16 years, 8 months ago)
by
dpavlin
Original Path:
trunk/src/devices
++ trunk/HISTORY (local)
$Id: HISTORY,v 1.1121 2006/02/18 21:03:08 debug Exp $
20051126 Cobalt and PReP now work with the 21143 NIC.
Continuing on Alpha dyntrans things.
Fixing some more left-shift-by-24 to unsigned.
20051127 Working on OpenFirmware emulation; major cleanup/redesign.
Progress on MacPPC emulation: NetBSD detects two CPUs (when
running with -n 2), framebuffer output (for text) works.
Adding quick-hack Bandit PCI controller and "gc" interrupt
controller for MacPPC.
20051128 Changing from a Bandit to a Uni-North controller for macppc.
Continuing on OpenFirmware and MacPPC emulation in general
(obio controller, and wdc attached to the obio seems to work).
20051129 More work on MacPPC emulation (adding a dummy ADB controller).
Continuing the PCI bus cleanup (endianness and tag composition)
and rewriting all PCI controllers' access functions.
20051130 Various minor PPC dyntrans optimizations.
Manually inlining some parts of the framebuffer redraw routine.
Slowly beginning the conversion of the old MIPS emulation into
dyntrans (but this will take quite some time to get right).
Generalizing quick_pc_to_pointers.
20051201 Documentation update (David Muse has made available a kernel
which simplifies Debian/DECstation installation).
Continuing on the ADB bus controller.
20051202 Beginning a rewrite of the Zilog serial controller (dev_zs).
20051203 Continuing on the zs rewrite (now called dev_z8530); conversion
to devinit style.
Reworking some of the input-only vs output-only vs input-output
details of src/console.c, better warning messages, and adding
a debug dump.
Removing the concept of "device state"; it wasn't really used.
Changing some debug output (-vv should now be used to show all
details about devices and busses; not shown during normal
startup anymore).
Beginning on some SPARC instruction disassembly support.
20051204 Minor PPC updates (WALNUT skeleton stuff).
Continuing on the MIPS dyntrans rewrite.
More progress on the ADB controller (a keyboard is "detected"
by NetBSD and OpenBSD).
Downgrading OpenBSD/arc as a guest OS from "working" to
"almost working" in the documentation.
Progress on Algor emulation ("v3" PCI controller).
20051205 Minor updates.
20051207 Sorting devices according to address; this reduces complexity
of device lookups from O(n) to O(log n) in memory_rw (but no
real performance increase (yet) in experiments).
20051210 Beginning the work on native dyntrans backends (by making a
simple skeleton; so far only for Alpha hosts).
20051211 Some very minor SPARC updates.
20051215 Fixing a bug in the MIPS mul (note: not mult) instruction,
so it also works with non-64-bit emulation. (Thanks to Alec
Voropay for noticing the problem.)
20051216 More work on the fake/empty/simple/skeleton/whatever backend;
performance doesn't increase, so this isn't really worth it,
but it was probably worth it to prepare for a real backend
later.
20051219 More instr call statistics gathering and analysis stuff.
20051220 Another fix for MIPS 'mul'. Also converting mul and {d,}cl{o,z}
to dyntrans.
memory_ppc.c syntax error fix (noticed by Peter Valchev).
Beginning to move out machines from src/machine.c into
individual files in src/machines (in a way similar to the
autodev system for devices).
20051222 Updating the documentation regarding NetBSD/pmax 3.0.
20051223 - " - NetBSD/cats 3.0.
20051225 - " - NetBSD/hpcmips 3.0.
20051226 Continuing on the machine registry redesign.
Adding support for ARM rrx (33-bit rotate).
Fixing some signed/unsigned issues (exposed by gcc -W).
20051227 Fixing the bug which prevented a NetBSD/prep 3.0 install kernel
from starting (triggered when an mtmsr was the last instruction
on a page). Unfortunately not enough to get the kernel to run
as well as the 2.1 kernels did.
20051230 Some dyntrans refactoring.
20051231 Continuing on the machine registry redesign.
20060101-10 Continuing... moving more machines. Moving MD interrupt stuff
from machine.c into a new src/machines/interrupts.c.
20060114 Adding various mvmeppc machine skeletons.
20060115 Continuing on mvme* stuff. NetBSD/mvmeppc prints boot messages
(for MVME1600) and reaches the root device prompt, but no
specific hardware devices are emulated yet.
20060116 Minor updates to the mvme1600 emulation mode; the Eagle PCI bus
seems to work without much modification, and a 21143 can be
detected, interrupts might work (but untested so far).
Adding a fake MK48Txx (mkclock) device, for NetBSD/mvmeppc.
20060121 Adding an aux control register for ARM. (A BIG thank you to
Olivier Houchard for tracking down this bug.)
20060122 Adding more ARM instructions (smulXY), and dev_iq80321_7seg.
20060124 Adding disassembly of more ARM instructions (mia*, mra/mar),
and some semi-bogus XScale and i80321 registers.
20060201-02 Various minor updates. Moving the last machines out of
machine.c.
20060204 Adding a -c command line option, for running debugger commands
before the simulation starts, but after all files have been
loaded.
Minor iq80321-related updates.
20060209 Minor hacks (DEVINIT macro, etc).
Preparing for the generalization of the 64-bit dyntrans address
translation subsystem.
20060216 Adding ARM ldrd (double-register load).
20060217 Continuing on various ARM-related stuff.
20060218 More progress on the ATA/wdc emulation for NetBSD/iq80321.
NetBSD/evbarm can now be installed :-) Updating the docs, etc.
Continuing on Algor emulation.
============== RELEASE 0.3.8 ==============
Revision
20 -
Directory Listing
Modified
Mon Oct 8 16:19:23 2007 UTC
(16 years, 8 months ago)
by
dpavlin
Original Path:
trunk/src/devices
++ trunk/HISTORY (local)
$Id: HISTORY,v 1.1055 2005/11/25 22:48:36 debug Exp $
20051031 Adding disassembly support for more ARM instructions (clz,
smul* etc), and adding a hack to support "new tiny" pages
for StrongARM.
20051101 Minor documentation updates (NetBSD 2.0.2 -> 2.1, and OpenBSD
3.7 -> 3.8, and lots of testing).
Changing from 1-sector PIO mode 0 transfers to 128-sector PIO
mode 3 (in dev_wdc).
Various minor ARM dyntrans updates (pc-relative loads from
within the same page as the instruction are now treated as
constant "mov").
20051102 Re-enabling instruction combinations (they were accidentally
disabled).
Dyntrans TLB entries are now overwritten using a round-robin
scheme instead of randomly. This increases performance.
Fixing a typo in file.c (thanks to Chuan-Hua Chang for
noticing it).
Experimenting with adding ATAPI support to dev_wdc (to make
emulated *BSD detect cdroms as cdroms, not harddisks).
20051104 Various minor updates.
20051105 Continuing on the ATAPI emulation. Seems to work well enough
for a NetBSD/cats installation, but not OpenBSD/cats.
Various other updates.
20051106 Modifying the -Y command line option to allow scaleup with
certain graphic controllers (only dev_vga so far), not just
scaledown.
Some minor dyntrans cleanups.
20051107 Beginning a cleanup up the PCI subsystem (removing the
read_register hack, etc).
20051108 Continuing the cleanup; splitting up some pci devices into a
normal autodev device and some separate pci glue code.
20051109 Continuing on the PCI bus stuff; all old pci_*.c have been
incorporated into normal devices and/or rewritten as glue code
only, adding a dummy Intel 82371AB PIIX4 for Malta (not really
tested yet).
Minor pckbc fix so that Linux doesn't complain.
Working on the DEC 21143 NIC (ethernet mac rom stuff mostly).
Various other minor fixes.
20051110 Some more ARM dyntrans fine-tuning (e.g. some instruction
combinations (cmps followed by conditional branch within the
same page) and special cases for DPIs with regform when the
shifter isn't used).
20051111 ARM dyntrans updates: O(n)->O(1) for just-mark-as-non-
writable in the generic pc_to_pointers function, and some other
minor hacks.
Merging Cobalt and evbmips (Malta) ISA interrupt handling,
and some minor fixes to allow Linux to accept harddisk irqs.
20051112 Minor device updates (pckbc, dec21143, lpt, ...), most
importantly fixing the ALI M1543/M5229 so that harddisk irqs
work with Linux/CATS.
20051113 Some more generalizations of the PCI subsystem.
Finally took the time to add a hack for SCSI CDROM TOCs; this
enables OpenBSD to use partition 'a' (as needed by the OpenBSD
installer), and Windows NT's installer to get a bit further.
Also fixing dev_wdc to allow Linux to detect ATAPI CDROMs.
Continuing on the DEC 21143.
20051114 Minor ARM dyntrans tweaks; ARM cmps+branch optimization when
comparing with 0, and generalizing the xchg instr. comb.
Adding disassembly of ARM mrrc/mcrr and q{,d}{add,sub}.
20051115 Continuing on various PPC things (BATs, other address trans-
lation things, various loads/stores, BeBox emulation, etc.).
Beginning to work on PPC interrupt/exception support.
20051116 Factoring out some code which initializes legacy ISA devices
from those machines that use them (bus_isa).
Continuing on PPC interrupt/exception support.
20051117 Minor Malta fixes: RTC year offset = 80, disabling a speed hack
which caused NetBSD to detect a too fast cpu, and adding a new
hack to make Linux detect a faster cpu.
Continuing on the Artesyn PM/PPC emulation mode.
Adding an Algor emulation skeleton (P4032 and P5064);
implementing some of the basics.
Continuing on PPC emulation in general; usage of unimplemented
SPRs is now easier to track, continuing on memory/exception
related issues, etc.
20051118 More work on PPC emulation (tgpr0..3, exception handling,
memory stuff, syscalls, etc.).
20051119 Changing the ARM dyntrans code to mostly use cpu->pc, and not
necessarily use arm reg 15. Seems to work.
Various PPC updates; continuing on the PReP emulation mode.
20051120 Adding a workaround/hack to dev_mc146818 to allow NetBSD/prep
to detect the clock.
20051121 More cleanup of the PCI bus (memory and I/O bases, etc).
Continuing on various PPC things (decrementer and timebase,
WDCs on obio (on PReP) use irq 13, not 14/15).
20051122 Continuing on the CPC700 controller (interrupts etc) for PMPPC,
and on PPC stuff in general.
Finally! After some bug fixes to the virtual to physical addr
translation, NetBSD/{prep,pmppc} 2.1 reach userland and are
stable enough to be interacted with.
More PCI updates; reverse-endian device access for PowerPC etc.
20051123 Generalizing the IEEE floating point subsystem (moving it out
from src/cpus/cpu_mips_coproc.c into a new src/float_emul.c).
Input via slave xterms was sometimes not really working; fixing
this for ns16550, and a warning message is now displayed if
multiple non-xterm consoles are active.
Adding some PPC floating point support, etc.
Various interrupt related updates (dev_wdc, _ns16550, _8259,
and the isa32 common code in machine.c).
NetBSD/prep can now be installed! :-) (Well, with some manual
commands necessary before running sysinst.) Updating the
documentation and various other things to reflect this.
20051124 Various minor documentation updates.
Continuing the work on the DEC 21143 NIC.
20051125 LOTS of work on the 21143. Both OpenBSD and NetBSD work fine
with it now, except that OpenBSD sometimes gives a time-out
warning.
Minor documentation updates.
============== RELEASE 0.3.7 ==============
Revision
18 -
Directory Listing
Modified
Mon Oct 8 16:19:11 2007 UTC
(16 years, 8 months ago)
by
dpavlin
Original Path:
trunk/src/devices
++ trunk/HISTORY (local)
$Id: HISTORY,v 1.1004 2005/10/27 14:01:10 debug Exp $
20051011 Passing -A as the default boot arg for CATS (works fine with
OpenBSD/cats).
20051012 Fixing the VGA cursor offset bug, and speeding up framebuffer
redraws if character cells contain the same thing as during
the last redraw.
20051013 Adding a slow strd ARM instruction hack.
20051017 Minor updates: Adding a dummy i80321 Verde controller (for
XScale emulation), fixing the disassembly of the ARM "ldrd"
instruction, adding "support" for less-than-4KB pages for ARM
(by not adding them to translation tables).
20051020 Continuing on some HPCarm stuff. A NetBSD/hpcarm kernel prints
some boot messages on an emulated Jornada 720.
Making dev_ram work better with dyntrans (speeds up some things
quite a bit).
20051021 Automatically generating some of the most common ARM load/store
multiple instructions.
20051022 Better statistics gathering for the ARM load/store multiple.
Various other dyntrans and device updates.
20051023 Various minor updates.
20051024 Continuing; minor device and dyntrans fine-tuning. Adding the
first "reasonable" instruction combination hacks for ARM (the
cores of NetBSD/cats' memset and memcpy).
20051025 Fixing a dyntrans-related bug in dev_vga. Also changing the
dyntrans low/high access notification to only be updated on
writes, not reads. Hopefully it will be enough. (dev_vga in
charcell mode now seems to work correctly with both reads and
writes.)
Experimenting with gathering dyntrans statistics (which parts
of emulated RAM that are actually executed), and adding
instruction combination hacks for cache cleaning and a part of
NetBSD's scanc() function.
20051026 Adding a bitmap for ARM emulation which indicates if a page is
(specifically) user accessible; loads and stores with the t-
flag set can now use the translation arrays, which results in
a measurable speedup.
20051027 Dyntrans updates; adding an extra bitmap array for 32-bit
emulation modes, speeding up the check whether a physical page
has any code translations or not (O(n) -> O(1)). Doing a
similar reduction of O(n) to O(1) by avoiding the scan through
the translation entries on a translation update (32-bit mode
only).
Various other minor hacks.
20051029 Quick release, without any testing at all.
============== RELEASE 0.3.6.2 ==============
Revision
16 -
Directory Listing
Modified
Mon Oct 8 16:19:01 2007 UTC
(16 years, 8 months ago)
by
dpavlin
Original Path:
trunk/src/devices
++ trunk/HISTORY (local)
$Id: HISTORY,v 1.988 2005/10/11 03:53:57 debug Exp $
============== RELEASE 0.3.6 ==============
20051008 The bug was not because of faulty ARM documentation after all,
but it was related to those parts of the code.
Fixing the RTC (dev_mc146818) to work with CATS.
20051009 Rewriting the R() function; now there are 8192 automatically
generated smaller functions doing the same thing, but hopefully
faster. This also fixes some bugs which were triggered when
trying to compile GXemul inside itself. :-)
Adding a dummy dev_lpt.
20051010 Small hack to not update virtual translation tables if memory
accesses are done with the NO_EXCEPTION flag; a time reduction
of almost a factor 2 for a full NetBSD/cats install. :-)
20051011 Passing -A as the default boot arg for CATS (works fine with
OpenBSD/cats).
============== RELEASE 0.3.6.1 ==============
Revision
14 -
Directory Listing
Modified
Mon Oct 8 16:18:51 2007 UTC
(16 years, 8 months ago)
by
dpavlin
Original Path:
trunk/src/devices
++ trunk/HISTORY (local)
$Id: HISTORY,v 1.982 2005/10/07 22:45:32 debug Exp $
20050816 Some success in decoding the way the SGI O2 PROM draws graphics
during bootup; lines/rectangles and bitmaps work, enough to
show the bootlogo etc. :-)
Adding more PPC instructions, and (dummy) BAT registers.
20050817 Updating the pckbc to support scancode type 3 keyboards
(required in order to interact with the SGI O2 PROM).
Adding more PPC instructions.
20050818 Adding more ARM instructions; general register forms.
Importing armreg.h from NetBSD (ARM cpu ids). Adding a (dummy)
CATS machine mode (using SA110 as the default CPU).
Continuing on general dyntrans related stuff.
20050819 Register forms for ARM load/stores. Gaah! The Compaq C Compiler
bug is triggered for ARM loads as well, not just PPC :-(
Adding full support for ARM PC-relative load/stores, and load/
stores where the PC register is the destination register.
Adding support for ARM a.out binaries.
20050820 Continuing to add more ARM instructions, and correcting some
bugs. Continuing on CATS emulation.
More work on the PPC stuff.
20050821 Minor PPC and ARM updates. Adding more machine types.
20050822 All ARM "data processing instructions" are now generated
automatically.
20050824 Beginning the work on the ARM system control coprocessor.
Adding support for ARM halfword load/stores, and signed loads.
20050825 Fixing an important bug related to the ARM condition codes.
OpenBSD/zaurus and NetBSD/netwinder now print some boot
messages. :)
Adding a dummy SH (Hitachi SuperH) cpu family.
Beginning to add some ARM virtual address translation.
MIPS bugfixes: unaligned PC now cause an ADEL exception (at
least for non-bintrans execution), and ADEL/ADES (not
TLBL/TLBS) are used if userland tries to access kernel space.
(Thanks to Joshua Wise for making me aware of these bugs.)
20050827 More work on the ARM emulation, and various other updates.
20050828 More ARM updates.
Finally taking the time to work on translation invalidation
(i.e. invalidating translated code mappings when memory is
written to). Hopefully this doesn't break anything.
20050829 Moving CPU related files from src/ to a new subdir, src/cpus/.
Moving PROM emulation stuff from src/ to src/promemul/.
Better debug instruction trace for ARM loads and stores.
20050830 Various ARM updates (correcting CMP flag calculation, etc).
20050831 PPC instruction updates. (Flag fixes, etc.)
20050901 Various minor PPC and ARM instruction emulation updates.
Minor OpenFirmware emulation updates.
20050903 Adding support for adding arbitrary ARM coprocessors (with
the i80321 I/O coprocessor as a first test).
Various other ARM and PPC updates.
20050904 Adding some SHcompact disassembly routines.
20050907 (Re)adding a dummy HPPA CPU module, and a dummy i960 module.
20050908 Began hacking on some Apple Partition Table support.
20050909 Adding support for loading Mach-O (Darwin PPC) binaries.
20050910 Fixing an ARM bug (Carry flag was incorrectly updated for some
data processing instructions); OpenBSD/cats and NetBSD/
netwinder get quite a bit further now.
Applying a patch to dev_wdc, and a one-liner to dev_pcic, to
make them work better when emulating new versions of OpenBSD.
(Thanks to Alexander Yurchenko for the patches.)
Also doing some other minor updates to dev_wdc. (Some cleanup,
and finally converting to devinit, etc.)
20050912 IRIX doesn't have u_int64_t by default (noticed by Andreas
<avr@gnulinux.nl>); configure updated to reflect this.
Working on ARM register bank switching, CPSR vs SPSR issues,
and beginning the work on interrupt/exception support.
20050913 Various minor ARM updates (speeding up load/store multiple,
and fixing a ROR bug in R(); NetBSD/cats now boots as far as
OpenBSD/cats).
20050917 Adding a dummy Atmel AVR (8-bit) cpu family skeleton.
20050918 Various minor updates.
20050919 Symbols are now loaded from Mach-O executables.
Continuing the work on adding ARM exception support.
20050920 More work on ARM stuff: OpenBSD/cats and NetBSD/cats reach
userland! :-)
20050921 Some more progress on ARM interrupt specifics.
20050923 Fixing linesize for VR4121 (patch by Yurchenko). Also fixing
linesizes/cachesizes for some other VR4xxx.
Adding a dummy Acer Labs M1543 PCI-ISA bridge (for CATS) and a
dummy Symphony Labs 83C553 bridge (for Netwinder), usable by
dev_footbridge.
20050924 Some PPC progress.
20050925 More PPC progress.
20050926 PPC progress (fixing some bugs etc); Darwin's kernel gets
slightly further than before.
20050928 Various updates: footbridge/ISA/pciide stuff, and finally
fixing the VGA text scroll-by-changing-the-base-offset bug.
20050930 Adding a dummy S3 ViRGE pci card for CATS emulation, which
both NetBSD and OpenBSD detects as VGA.
Continuing on Footbridge (timers, ISA interrupt stuff).
20051001 Continuing... there are still bugs, probably interrupt-
related.
20051002 More work on the Footbridge (interrupt stuff).
20051003 Various minor updates. (Trying to find the bug(s).)
20051004 Continuing on the ARM stuff.
20051005 More ARM-related fixes.
20051007 FINALLY! Found and fixed 2 ARM bugs: 1 memory related, and the
other was because of an error in the ARM manual (load multiple
with the S-bit set should _NOT_ load usermode registers, as the
manual says, but it should load saved registers, which may or
may not happen to be usermode registers).
NetBSD/cats and OpenBSD/cats seem to install fine now :-)
except for a minor bug at the end of the OpenBSD/cats install.
Updating the documentation, preparing for the next release.
20051008 Continuing with release testing and cleanup.
Revision
12 -
Directory Listing
Modified
Mon Oct 8 16:18:38 2007 UTC
(16 years, 8 months ago)
by
dpavlin
Original Path:
trunk/src/devices
++ trunk/HISTORY (local)
$Id: HISTORY,v 1.905 2005/08/16 09:16:24 debug Exp $
20050628 Continuing the work on the ARM translation engine. end_of_page
works. Experimenting with load/store translation caches
(virtual -> physical -> host).
20050629 More ARM stuff (memory access translation cache, mostly). This
might break a lot of stuff elsewhere, probably some MIPS-
related translation things.
20050630 Many load/stores are now automatically generated and included
into cpu_arm_instr.c; 1024 functions in total (!).
Fixes based on feedback from Alec Voropay: only print 8 hex
digits instead of 16 in some cases when emulating 32-bit
machines; similar 8 vs 16 digit fix for breakpoint addresses;
4Kc has 16 TLB entries, not 48; the MIPS config select1
register is now printed with "reg ,0".
Also changing many other occurances of 16 vs 8 digit output.
Adding cache associativity fields to mips_cpu_types.h; updating
some other cache fields; making the output of
mips_cpu_dumpinfo() look nicer.
Generalizing the bintrans stuff for device accesses to also
work with the new translation system. (This might also break
some MIPS things.)
Adding multi-load/store instructions to the ARM disassembler
and the translator, and some optimizations of various kinds.
20050701 Adding a simple dev_disk (it can read/write sectors from
disk images).
20050712 Adding dev_ether (a simple ethernet send/receive device).
Debugger command "ninstrs" for toggling show_nr_of_instructions
during runtime.
Removing the framebuffer logo.
20050713 Continuing on dev_ether.
Adding a dummy cpu_alpha (again).
20050714 More work on cpu_alpha.
20050715 More work on cpu_alpha. Many instructions work, enough to run
a simple framebuffer fill test (similar to the ARM test).
20050716 More Alpha stuff.
20050717 Minor updates (Alpha stuff).
20050718 Minor updates (Alpha stuff).
20050719 Generalizing some Alpha instructions.
20050720 More Alpha-related updates.
20050721 Continuing on cpu_alpha. Importing rpb.h from NetBSD/alpha.
20050722 Alpha-related updates: userland stuff (Hello World using
write() compiled statically for FreeBSD/Alpha runs fine), and
more instructions are now implemented.
20050723 Fixing ldq_u and stq_u.
Adding more instructions (conditional moves, masks, extracts,
shifts).
20050724 More FreeBSD/Alpha userland stuff, and adding some more
instructions (inserts).
20050725 Continuing on the Alpha stuff. (Adding dummy ldt/stt.)
Adding a -A command line option to turn off alignment checks
in some cases (for translated code).
Trying to remove the old bintrans code which updated the pc
and nr_of_executed_instructions for every instruction.
20050726 Making another attempt att removing the pc/nr of instructions
code. This time it worked, huge performance increase for
artificial test code, but performance loss for real-world
code :-( so I'm scrapping that code for now.
Tiny performance increase on Alpha (by using ret instead of
jmp, to play nice with the Alpha's branch prediction) for the
old MIPS bintrans backend.
20050727 Various minor fixes and cleanups.
20050728 Switching from a 2-level virtual to host/physical translation
system for ARM emulation, to a 1-level translation.
Trying to switch from 2-level to 1-level for the MIPS bintrans
system as well (Alpha only, so far), but there is at least one
problem: caches and/or how they work with device mappings.
20050730 Doing the 2-level to 1-level conversion for the i386 backend.
The cache/device bug is still there for R2K/3K :(
Various other minor updates (Malta etc).
The mc146818 clock now updates the UIP bit in a way which works
better with Linux for at least sgimips and Malta emulation.
Beginning the work on refactoring the dyntrans system.
20050731 Continuing the dyntrans refactoring.
Fixing a small but serious host alignment bug in memory_rw.
Adding support for big-endian load/stores to the i386 bintrans
backend.
Another minor i386 bintrans backend update: stores from the
zero register are now one (or two) loads shorter.
The slt and sltu instructions were incorrectly implemented for
the i386 backend; only using them for 32-bit mode for now.
20050801 Continuing the dyntrans refactoring.
Cleanup of the ns16550 serial controller (removing unnecessary
code).
Bugfix (memory corruption bug) in dev_gt, and a patch/hack from
Alec Voropay for Linux/Malta.
20050802 More cleanup/refactoring of the dyntrans subsystem: adding
phys_page pointers to the lookup tables, for quick jumps
between translated pages.
Better fix for the ns16550 device (but still no real FIFO
functionality).
Converting cpu_ppc to the new dyntrans system. This means that
I will have to start from scratch with implementing each
instruction, and figure out how to implement dual 64/32-bit
modes etc.
Removing the URISC CPU family, because it was useless.
20050803 When selecting a machine type, the main type can now be omitted
if the subtype name is unique. (I.e. -E can be omitted.)
Fixing a dyntrans/device update bug. (Writes to offset 0 of
a device could sometimes go unnoticed.)
Adding an experimental "instruction combination" hack for
ARM for memset-like byte fill loops.
20050804 Minor progress on cpu_alpha and related things.
Finally fixing the MIPS dmult/dmultu bugs.
Fixing some minor TODOs.
20050805 Generalizing the 8259 PIC. It now also works with Cobalt
and evbmips emulation, in addition to the x86 hack.
Finally converting the ns16550 device to use devinit.
Continuing the work on the dyntrans system. Thinking about
how to add breakpoints.
20050806 More dyntrans updates. Breakpoints seem to work now.
20050807 Minor updates: cpu_alpha and related things; removing
dev_malta (as it isn't used any more).
Dyntrans: working on general "show trace tree" support.
The trace tree stuff now works with both the old MIPS code and
with newer dyntrans modes. :)
Continuing on Alpha-related stuff (trying to get *BSD to boot
a bit further, adding more instructions, etc).
20050808 Adding a dummy IA64 cpu family, and continuing the refactoring
of the dyntrans system.
Removing the regression test stuff, because it was more or
less useless.
Adding loadlinked/storeconditional type instructions to the
Alpha emulation. (Needed for Linux/alpha. Not very well tested
yet.)
20050809 The function call trace tree now prints a per-function nr of
arguments. (Semi-meaningless, since that data isn't read yet
from the ELFs; some hardcoded symbols such as memcpy() and
strlen() work fine, though.)
More dyntrans refactoring; taking out more of the things that
are common to all cpu families.
20050810 Working on adding support for "dual mode" for PPC dyntrans
(i.e. both 64-bit and 32-bit modes).
(Re)adding some simple PPC instructions.
20050811 Adding a dummy M68K cpu family. The dyntrans system isn't ready
for variable-length ISAs yet, so it's completely bogus so far.
Re-adding more PPC instructions.
Adding a hack to src/file.c which allows OpenBSD/mac68k a.out
kernels to be loaded.
Beginning to add PPC loads/stores. So far they only work in
32-bit mode.
20050812 The configure file option "add_remote" now accepts symbolic
host names, in addition to numeric IPv4 addresses.
Re-adding more PPC instructions.
20050814 Continuing to port back more PPC instructions.
Found and fixed the cache/device write-update bug for 32-bit
MIPS bintrans. :-)
Triggered a really weird and annoying bug in Compaq's C
compiler; ccc sometimes outputs code which loads from an
address _before_ checking whether the pointer was NULL or not.
(I'm not sure how to handle this problem.)
20050815 Removing all of the old x86 instruction execution code; adding
a new (dummy) dyntrans module for x86.
Taking the first steps to extend the dyntrans system to support
variable-length instructions.
Slowly preparing for the next release.
20050816 Adding a dummy SPARC cpu module.
Minor updates (documentation etc) for the release.
============== RELEASE 0.3.5 ==============
Revision
10 -
Directory Listing
Modified
Mon Oct 8 16:18:27 2007 UTC
(16 years, 8 months ago)
by
dpavlin
Original Path:
trunk/src/devices
++ trunk/HISTORY (local)
$Id: HISTORY,v 1.815 2005/06/27 23:04:35 debug Exp $
20050617 Experimenting some more with netbooting OpenBSD/sgi. Adding
a hack which allows emulated ethernet networks to be
distributed across multiple emulator processes.
20050618 Minor updates (documentation, dummy YAMON emulation, etc).
20050620 strcpy/strcat -> strlcpy/strlcat updates.
Some more progress on evbmips (Malta).
20050621 Adding a section to doc/configfiles.html about ethernet
emulation across multiple hosts.
Beginning the work on the ARM translation engine (using the
dynamic-but-not-binary translation method).
Fixing a bintrans bug: 0x9fc00000 should always be treated as
PROM area, just as 0xbfc00000 is.
Minor progress on Malta emulation (the PCI-ISA bus).
20050622 NetBSD/evbmips can now be installed (using another emulated
machine) and run (including userland and so on). :-)
Spliting up the bintrans haddr_entry field into two (one for
read, one for write). Probably not much of a speed increase,
though.
Updating some NetBSD 2.0 -> 2.0.2 in the documentation.
20050623 Minor updates (documentation, the TODO file, etc).
gzipped kernels are now always automagically gunzipped when
loaded.
20050624 Adding a dummy Playstation Portable (PSP) mode, just barely
enough to run Hello World (in weird colors :-).
Removing the -b command line option; old bintrans is enabled
by default instead. It makes more sense.
Trying to finally fix the non-working performance measurement
thing (instr/second etc).
20050625 Continuing on the essential basics for ARM emulation. Two
instructions seem to work, a branch and a simple "mov". (The
mov arguments are not correct yet.) Performance is definitely
reasonable.
Various other minor updates.
Adding the ARM "bl" instruction.
Adding support for combining multiple ARM instructions into one
function call. ("mov" + "mov" is the only one implemented so
far, but it seems to work.)
Cleaning up some IP32 interrupt things (crime/mace); disabling
the PS/2 keyboard controller on IP32, so that NetBSD/sgimips
boots into userland again.
20050626 Finally! NetBSD/sgimips netboots. Adding instructions to
doc/guestoses.html on how to set up an nfs server etc.
Various other minor fixes.
Playstation Portable ".pbp" files can now be used directly.
(The ELF part of the .pbp is extracted transparently.)
Converting some sprintf -> snprintf.
Adding some more instructions to the ARM disassembler.
20050627 More ARM updates. Adding some simple ldr(b), str(b),
cmps, and conditional branch instructions, enough to run
a simple Hello World program.
All ARM instructions are now inlined/generated for all possible
condition codes.
Adding add and sub, and more load/store instructions.
Removing dummy files: cpu_alpha.c, cpu_hppa.c, and cpu_sparc.c.
Some minor documentation updates; preparing for a 0.3.4
release. Updating some URLs.
============== RELEASE 0.3.4 ==============
Revision
8 -
Directory Listing
Modified
Mon Oct 8 16:18:19 2007 UTC
(16 years, 8 months ago)
by
dpavlin
Original Path:
trunk/src/devices
++ trunk/HISTORY (local)
$Id: HISTORY,v 1.777 2005/06/12 12:31:52 debug Exp $
============== RELEASE 0.3.3.1 ==============
20050609 Adding simple MIPS IPIs (to dev_mp).
20050611 Adding an ugly hack to track down low-reference bugs
(define TRACE_NULL_CRASHES, or configure --tracenull).
Other minor updates.
20050612 Adding a dummy evbmips mode.
============== RELEASE 0.3.3.2 ==============
Revision
6 -
Directory Listing
Modified
Mon Oct 8 16:18:11 2007 UTC
(16 years, 8 months ago)
by
dpavlin
Original Path:
trunk/src/devices
++ trunk/HISTORY (local)
$Id: HISTORY,v 1.772 2005/06/04 12:02:16 debug Exp $
20050428 Disabling the "-fmove-all-movables" option in the configure
script, because it causes the compile to fail on OpenBSD/sgi.
20050502 Minor updates.
20050503 Removing the WRT54G mode (it was bogus anyway), and adding a
comment about Windows NT for MIPS in doc/experiments.html.
Minor updates to the x86 instruction decoding.
20050504 Adding some more x86 instructions.
Adding support for reading files from ISO9660 CDROMs (including
gzipped files). It's an ugly hack, but it seems to work.
Various other minor updates (dev_vga.c, pc_bios.c etc).
20050505 Some more x86-related updates.
Beginning (what I hope will be) a major code cleanup phase.
"bootris" (an x86 bootsector) runs :-)
20050506 Adding some more x86 instructions.
20050507 tmpnam => mkstemp.
Working on a hack to allow VGA charcells to be shown even when
not running with X11.
Adding more x86 instructions.
20050508 x86 32-bit SIB addressing fix, and more instructions.
20050509 Adding more x86 instructions.
20050510 Minor documentation updates, and other updates (x86 stuff etc.)
20050511 More x86-related updates.
20050513 Various updates, mostly x86-related. (Trying to fix flag
calculation, factoring out the ugly shift/rotate code, and
some other things.)
20050514 Adding support for loading some old i386 a.out executables.
Finally beginning the cleanup of machine/PROM/bios dependant
info.
Some minor documentation updates.
Trying to clean up ARCBIOS stuff a little.
20050515 Trying to make it possible to actually use more than one disk
type per machine (floppy, ide, scsi).
Trying to clean up the kbd vs PROM console stuff. (For PC and
ARC emulation modes, mostly.)
Beginning to add an 8259 interrupt controller, and connecting
it to the x86 emulation.
20050516 The first x86 interrupts seem to work (keyboard stuff).
Adding a 8253/8254 programmable interval timer skeleton.
FreeDOS now reaches a command prompt and can be interacted
with.
20050517 After some bugfixes, MS-DOS also (sometimes) reaches a
command prompt now.
Trying to fix the pckbc to work with MS-DOS' keyb.com, but no
success yet.
20050518 Adding a simple 32-bit x86 MMU skeleton.
20050519 Some more work on the x86 stuff. (Beginning the work on paging,
and various other fixes).
20050520 More updates. Working on dev_vga (4-bit graphics modes), adding
40 columns support to the PC bios emulation.
Trying to add support for resizing windows when switching
between graphics modes.
20050521 Many more x86-related updates.
20050522 Correcting the initial stack pointer's sign-extension for
ARCBIOS emulation (thanks to Alec Voropay for noticing the
error).
Continuing on the cleanup (ARCBIOS etc).
dev_vga updates.
20050523 More x86 updates: trying to add some support for protected mode
interrupts (via gate descriptors) and many other fixes.
More ARCBIOS cleanup.
Adding a device flag which indicates that reads cause no
side-effects. (Useful for the "dump" command in the debugger,
and other things.)
Adding support for directly starting up x86 ELFs, skipping the
bootloader stage. (Most ELFs, however, are not suitable for
this.)
20050524 Adding simple 32-bit x86 TSS task switching, but no privilege
level support yet.
More work on dev_vga. A small "Copper bars" demo works. :-)
Adding support for Trap Flag (single-step exceptions), at least
in real mode, and various other x86-related fixes.
20050525 Adding a new disk image prefix (gH;S;) which can be used to
override the default nr of heads and sectors per track.
20050527 Various bug fixes, more work on the x86 mode (stack change on
interrupts between different priv.levels), and some minor
documentation updates.
20050528 Various fixes (x86 stuff).
20050529 More x86 fixes. An OpenBSD/i386 bootfloppy reaches userland
and can be interacted with (although there are problems with
key repetition). NetBSD/i386 triggers a serious CISC-related
problem: instruction fetches across page boundaries, where
the later part isn't actually part of the instruction.
20050530 Various minor updates. (Documentation updates, etc.)
20050531 Adding some experimental code (experiments/new_test_*) which
could be useful for dynamic (but not binary) translation in
the future.
20050602 Adding a dummy ARM skeleton.
Fixing the pckbc key repetition problem (by adding release
scancodes for all keypresses).
20050603 Minor updates for the next release.
20050604 Release testing. Minor updates.
============== RELEASE 0.3.3 ==============
20050604 There'll probably be a 0.3.3.1 release soon, with some very
very tiny updates.
Revision
4 -
Directory Listing
Added
Mon Oct 8 16:18:00 2007 UTC
(16 years, 8 months ago)
by
dpavlin
Original Path:
trunk/src/devices
++ trunk/HISTORY (local)
$Id: HISTORY,v 1.707 2005/04/27 16:37:33 debug Exp $
20050408 Some minor updates to the wdc. Linux now doesn't complain
anymore if a disk is non-present.
20050409 Various minor fixes (a bintrans bug, and some other things).
The wdc seems to work with Playstation2 emulation, but there
is a _long_ annoying delay when disks are detected.
Fixing a really important bintrans bug (when devices and RAM
are mixed within 4KB pages), which was triggered with
NetBSD/playstation2 kernels.
20050410 Adding a dummy dev_ps2_ether (just so that NetBSD doesn't
complain as much during bootup).
Symbols starting with '$' are now ignored.
Renaming dev_ps2_ohci.c to dev_ohci.c, etc.
20050411 Moving the bintrans-cache-isolation check from cpu_mips.c to
cpu_mips_coproc.c. (I thought this would give a speedup, but
it's not noticable.)
Better playstation2 sbus interrupt code.
Skip ahead many ticks if the count register is read manually.
(This increases the speed of delay-loops that simply read
the count register.)
20050412 Updates to the playstation2 timer/interrupt code.
Some other minor updates.
20050413 NetBSD/cobalt runs from a disk image :-) including userland;
updating the documentation on how to install NetBSD/cobalt
using NetBSD/pmax (!).
Some minor bintrans updates (no real speed improvement) and
other minor updates (playstation2 now uses the -o options).
20050414 Adding a dummy x86 (and AMD64) mode.
20050415 Adding some (32-bit and 16-bit) x86 instructions.
Adding some initial support for non-SCSI, non-IDE floppy
images. (The x86 mode can boot from these, more or less.)
Moving the devices/ and include/ directories to src/devices/
and src/include/, respectively.
20050416 Continuing on the x86 stuff. (Adding pc_bios.c and some simple
support for software interrupts in 16-bit mode.)
20050417 Ripping out most of the x86 instruction decoding stuff, trying
to rewrite it in a cleaner way.
Disabling some of the least working CPU families in the
configure script (sparc, x86, alpha, hppa), so that they are
not enabled by default.
20050418 Trying to fix the bug which caused problems when turning on
and off bintrans interactively, by flushing the bintrans cache
whenever bintrans is manually (re)enabled.
20050419 Adding the 'lswi' ppc instruction.
Minor updates to the x86 instruction decoding.
20050420 Renaming x86 register name indices from R_xx to X86_R_xx (this
makes building on Tru64 nicer).
20050422 Adding a check for duplicate MIPS TLB entries on tlbwr/tlbwi.
20050427 Adding screenshots to guestoses.html.
Some minor fixes and testing for the next release.
============== RELEASE 0.3.2 ==============