This is repository of my old source code which isn't updated any more. Go to git.rot13.org for current projects!
Log of /trunk/src/net
Directory Listing
Revision
48 -
Directory Listing
Modified
Wed Oct 10 22:58:29 2007 UTC
(16 years, 8 months ago)
by
dpavlin
remove CVS dirs all over
Revision
44 -
Directory Listing
Modified
Mon Oct 8 16:22:56 2007 UTC
(16 years, 8 months ago)
by
dpavlin
++ trunk/HISTORY (local)
$Id: HISTORY,v 1.1632 2007/09/11 21:46:35 debug Exp $
20070616 Implementing the MIPS32/64 revision 2 "ror" instruction.
20070617 Adding a struct for each physpage which keeps track of which
ranges within that page (base offset, length) that are
continuously translatable. When running with native code
generation enabled (-b), a range is added after each read-
ahead loop.
Experimenting with using the physical program counter sample
data (implemented 20070608) together with the "translatable
range" information, to figure out which physical address ranges
would be worth translating to native code (if the number of
samples falling within a range is above a certain threshold).
20070618 Adding automagic building of .index comment files for
src/file/, src/promemul/, src src/useremul/ as well.
Adding a "has been translated" bit to the ranges, so that only
not-yet-translated ranges will be sampled.
20070619 Moving src/cpu.c and src/memory_rw.c into src/cpus/,
src/device.c into src/devices/, and src/machine.c into
src/machines/.
Creating a skeleton cc/ld native backend module; beginning on
the function which will detect cc command line, etc.
20070620 Continuing on the native code generation infrastructure.
20070621 Moving src/x11.c and src/console.c into a new src/console/
subdir (for everything that is console or framebuffer related).
Moving src/symbol*.c into a new src/symbol/, which should
contain anything that is symbol handling related.
20070624 Making the program counter sampling threshold a "settings
variable" (sampling_threshold), i.e. it can now be changed
during runtime.
Switching the RELEASE notes format from plain text to HTML.
If the TMPDIR environment variable is set, it is used instead
of "/tmp" for temporary files.
Continuing on the cc/ld backend: simple .c code is generated,
the compiler and linker are called, etc.
Adding detection of host architecture to the configure script
(again), and adding icache invalidation support (only
implemented for Alpha hosts so far).
20070625 Simplifying the program counter sampling mechanism.
20070626 Removing the cc/ld native code generation stuff, program
counter sampling, etc; it would not have worked well in the
general case.
20070627 Removing everything related to native code generation.
20070629 Removing the (practically unusable) support for multiple
emulations. (The single emulation allowed now still supports
multiple simultaneous machines, as before.)
Beginning on PCCTWO and M88K interrupts.
20070723 Adding a dummy skeleton for emulation of M32R processors.
20070901 Fixing a warning found by "gcc version 4.3.0 20070817
(experimental)" on amd64.
20070905 Removing some more traces of the old "multiple emulations"
code.
Also looking in /usr/local/include and /usr/local/lib for
X11 libs, when running configure.
20070909 Minor updates to the guest OS install instructions, in
preparation for the NetBSD 4.0 release.
20070918 More testing of NetBSD 4.0 RC1.
Revision
42 -
Directory Listing
Modified
Mon Oct 8 16:22:32 2007 UTC
(16 years, 8 months ago)
by
dpavlin
++ trunk/HISTORY (local)
$Id: HISTORY,v 1.1613 2007/06/15 20:11:26 debug Exp $
20070501 Continuing a little on m88k disassembly (control registers,
more instructions).
Adding a dummy mvme88k machine mode.
20070502 Re-adding MIPS load/store alignment exceptions.
20070503 Implementing more of the M88K disassembly code.
20070504 Adding disassembly of some more M88K load/store instructions.
Implementing some relatively simple M88K instructions (br.n,
xor[.u] imm, and[.u] imm).
20070505 Implementing M88K three-register and, or, xor, and jmp[.n],
bsr[.n] including function call trace stuff.
Applying a patch from Bruce M. Simpson which implements the
SYSCON_BOARD_CPU_CLOCK_FREQ_ID object of the syscon call in
the yamon PROM emulation.
20070506 Implementing M88K bb0[.n] and bb1[.n], and skeletons for
ldcr and stcr (although no control regs are implemented yet).
20070509 Found and fixed the bug which caused Linux for QEMU_MIPS to
stop working in 0.4.5.1: It was a faulty change to the MIPS
'sc' and 'scd' instructions I made while going through gcc -W
warnings on 20070428.
20070510 Updating the Linux/QEMU_MIPS section in guestoses.html to
use mips-test-0.2.tar.gz instead of 0.1.
A big thank you to Miod Vallat for sending me M88K manuals.
Implementing more M88K instructions (addu, subu, div[u], mulu,
ext[u], clr, set, cmp).
20070511 Fixing bugs in the M88K "and" and "and.u" instructions (found
by comparing against the manual).
Implementing more M88K instructions (mask[.u], mak, bcnd (auto-
generated)) and some more control register details.
Cleanup: Removing the experimental AVR emulation mode and
corresponding devices; AVR emulation wasn't really meaningful.
Implementing autogeneration of most M88K loads/stores. The
rectangle drawing demo (with -O0) for M88K runs :-)
Beginning on M88K exception handling.
More M88K instructions: tb0, tb1, rte, sub, jsr[.n].
Adding some skeleton MVME PROM ("BUG") emulation.
20070512 Fixing a bug in the M88K cmp instruction.
Adding the M88K lda (scaled register) instruction.
Fixing bugs in 64-bit (32-bit pairs) M88K loads/stores.
Removing the unused tick_hz stuff from the machine struct.
Implementing the M88K xmem instruction. OpenBSD/mvme88k gets
far enough to display the Copyright banner :-)
Implementing subu.co (guess), addu.co, addu.ci, ff0, and ff1.
Adding a dev_mvme187, for MVME187-specific devices/registers.
OpenBSD/mvme88k prints more boot messages. :)
20070515 Continuing on MVME187 emulation (adding more devices, beginning
on the CMMUs, etc).
Adding the M88K and.c, xor.c, and or.c instructions, and making
sure that mul, div, etc cause exceptions if executed when SFD1
is disabled.
20070517 Continuing on M88K and MVME187 emulation in general; moving
the CMMU registers to the CPU struct, separating dev_pcc2 from
dev_mvme187, and beginning on memory_m88k.c (BATC and PATC).
Fixing a bug in 64-bit (32-bit pairs) M88K fast stores.
Implementing the clock part of dev_mk48txx.
Implementing the M88K fstcr and xcr instructions.
Implementing m88k_cpu_tlbdump().
Beginning on the implementation of a separate address space
for M88K .usr loads/stores.
20070520 Removing the non-working (skeleton) Sandpoint, SonyNEWS, SHARK
Dnard, and Zaurus machine modes.
Experimenting with dyntrans to_be_translated read-ahead. It
seems to give a very small performance increase for MIPS
emulation, but a large performance degradation for SuperH. Hm.
20070522 Disabling correct SuperH ITLB emulation; it does not seem to be
necessary in order to let SH4 guest OSes run, and it slows down
userspace code.
Implementing "samepage" branches for SuperH emulation, and some
other minor speed hacks.
20070525 Continuing on M88K memory-related stuff: exceptions, memory
transaction register contents, etc.
Implementing the M88K subu.ci instruction.
Removing the non-working (skeleton) Iyonix machine mode.
OpenBSD/mvme88k reaches userland :-), starts executing
/sbin/init's instructions, and issues a few syscalls, before
crashing.
20070526 Fixing bugs in dev_mk48txx, so that OpenBSD/mvme88k detects
the correct time-of-day.
Implementing a generic IRQ controller for the test machines
(dev_irqc), similar to a proposed patch from Petr Stepan.
Experimenting some more with translation read-ahead.
Adding an "expect" script for automated OpenBSD/landisk
install regression/performance tests.
20070527 Adding a dummy mmEye (SH3) machine mode skeleton.
FINALLY found the strange M88K bug I have been hunting: I had
not emulated the SNIP value for exceptions occurring in
branch delay slots correctly.
Implementing correct exceptions for 64-bit M88K loads/stores.
Address to symbol lookups are now disabled when M88K is
running in usermode (because usermode addresses don't have
anything to do with supervisor addresses).
20070531 Removing the mmEye machine mode skeleton.
20070604 Some minor code cleanup.
20070605 Moving src/useremul.c into a subdir (src/useremul/), and
cleaning up some more legacy constructs.
Adding -Wstrict-aliasing and -fstrict-aliasing detection to
the configure script.
20070606 Adding a check for broken GCC on Solaris to the configure
script. (GCC 3.4.3 on Solaris cannot handle static variables
which are initialized to 0 or NULL. :-/)
Removing the old (non-working) ARC emulation modes: NEC RD94,
R94, R96, and R98, and the last traces of Olivetti M700 and
Deskstation Tyne.
Removing the non-working skeleton WDSC device (dev_wdsc).
20070607 Thinking about how to use the host's cc + ld at runtime to
generate native code. (See experiments/native_cc_ld_test.i
for an example.)
20070608 Adding a program counter sampling timer, which could be useful
for native code generation experiments.
The KN02_CSR_NRMMOD bit in the DECstation 5000/200 (KN02) CSR
should always be set, to allow a 5000/200 PROM to boot.
20070609 Moving out breakpoint details from the machine struct into
a helper struct, and removing the limit on max nr of
breakpoints.
20070610 Moving out tick functions into a helper struct as well (which
also gets rid of the max limit).
20070612 FINALLY figured out why Debian/DECstation stopped working when
translation read-ahead was enabled: in src/memory_rw.c, the
call to invalidate_code_translation was made also if the
memory access was an instruction load (if the page was mapped
as writable); it shouldn't be called in that case.
20070613 Implementing some more MIPS32/64 revision 2 instructions: di,
ei, ext, dext, dextm, dextu, and ins.
20070614 Implementing an instruction combination for the NetBSD/arm
idle loop (making the host not use any cpu if NetBSD/arm
inside the emulator is not using any cpu).
Increasing the nr of ARM VPH entries from 128 to 384.
20070615 Removing the ENABLE_arch stuff from the configure script, so
that all included architectures are included in both release
and development builds.
Moving memory related helper functions from misc.c to memory.c.
Adding preliminary instructions for netbooting NetBSD/pmppc to
guestoses.html; it doesn't work yet, there are weird timeouts.
Beginning a total rewrite of the userland emulation modes
(removing all emulation modes, beginning from scratch with
NetBSD/MIPS and FreeBSD/Alpha only).
20070616 After fixing a bug in the DEC21143 NIC (the TDSTAT_OWN bit was
only cleared for the last segment when transmitting, not all
segments), NetBSD/pmppc boots with root-on-nfs without the
timeouts. Updating guestoses.html.
Removing the skeleton PSP (Playstation Portable) mode.
Moving X11-related stuff in the machine struct into a helper
struct.
Cleanup of out-of-memory checks, to use a new CHECK_ALLOCATION
macro (which prints a meaningful error message).
Adding a COMMENT to each machine and device (for automagic
.index comment generation).
Doing regression testing for the next release.
============== RELEASE 0.4.6 ==============
Revision
40 -
Directory Listing
Modified
Mon Oct 8 16:22:11 2007 UTC
(16 years, 8 months ago)
by
dpavlin
++ trunk/HISTORY (local)
$Id: HISTORY,v 1.1539 2007/05/01 04:03:51 debug Exp $
20070415 Landisk PCLOCK should be 33.33 MHz, not 50 MHz. (This makes
the clock run at correct speed.)
FINALLY found and fixed the bug which caused OpenBSD/landisk
to randomly bug out: an &-sign was missing in the special case
handling of FPSCR in the 'LDS.L @Rm+,FPSCR' instruction.
Adding similar special case handling for 'LDC.L @Rm+,SR'
(calling sh_update_sr() instead of just loading).
Implementing the 'FCNVSD FPUL,DRn' and 'FCNVDS DRm,FPUL'
SuperH instructions.
The 'LDC Rm,SR' instruction now immediately breaks out of the
dyntrans loop if an interrupt is to be triggered.
20070416 In memory_rw.c, if mapping a page as writable, make sure to
invalidate code translations even if the data access was a
read.
Minor SuperH updates.
20070418 Removing the dummy M68K emulation mode.
Minor SH update (turning unnecessary sts_mach_rn, sts_macl_rn,
and sts_pr_rn instruction handlers into mov_rm_rn).
20070419 Beginning to add a skeleton for an M88K mode: Adding a hack to
allow OpenBSD/m88k a.out binaries to be loaded, and disassembly
of a few simple 88K instructions.
Commenting out the 'LDC Rm,SR' fix from a few days ago, because
it made Linux/dreamcast bug out.
Adding a hack to dev_sh4.c (an extra translation cache
invalidation), which allows OpenBSD/landisk to boot ok after
an install. Upgrading the Landisk machine mode to stable,
updating documentation, etc.
20070420 Experimenting with adding a PCI controller (pcic) to dev_sh4.
Adding a dummy Realtek 8139C+ skeleton device (dev_rtl8139c).
Implementing the first M88K instructions (br, or[.u] imm), and
adding disassembly of some more instructions.
20070421 Continuing a little on dev_rtl8139c.
20070422 Implementing the 9346 EEPROM "read" command for dev_rtl8139c.
Finally found and fixed an old bug in the log n symbol search
(it sometimes missed symbols). Debug trace (-i, -t etc) should
now show more symbols. :-)
20070423 Continuing a little on M88K disassembly.
20070428 Fixing a memset arg order bug in src/net/net.c (thanks to
Nigel Horne for noticing the bug).
Applying parts of a patch from Carl van Schaik to clear out
bottom bits of MIPS addresses more correctly, when using large
page sizes, and doing some other minor cleanup/refactoring.
Fixing a couple of warnings given by gcc with the -W option (a
few more warnings than just plain -Wall).
Reducing SuperH dyntrans physical address space from 64-bit to
32-bit (since SH5/SH64 isn't imlemented yet anyway).
Adding address-to-symbol annotation to a few more instructions
in the SuperH instruction trace output.
Beginning regression testing for the next release.
Reverting the value of SCIF_DELAYED_TX_VALUE from 1 to 2,
because OpenBSD/landisk may otherwise hang randomly.
20070429 The ugly hack/workaround to get OpenBSD/landisk booting without
crashing does NOT work anymore (with the April 21 snapshot
of OpenBSD/landisk). Strangely enough, removing the hack
completely causes OpenBSD/landisk to work (!).
More regression testing (re-testing everything SuperH-related,
and some other things).
Cobalt interrupts were actually broken; fixing by commenting
out the DEC21143s in the Cobalt machine.
20070430 More regression testing.
20070501 Updating the OpenBSD/landisk install instructions to use
4.1 instead of the current snapshot.
GAAAH! OpenBSD/landisk 4.1 _needs_ the ugly hack/workaround;
reintroducing it again. (The 4.1 kernel is actually from
2007-03-11.)
Simplifying the NetBSD/evbarm install instructions a bit.
More regression testing.
============== RELEASE 0.4.5.1 ==============
Revision
38 -
Directory Listing
Modified
Mon Oct 8 16:21:53 2007 UTC
(16 years, 8 months ago)
by
dpavlin
++ trunk/HISTORY (local)
$Id: HISTORY,v 1.1515 2007/04/14 05:39:46 debug Exp $
20070324 Adding a "--debug" option to the configure script, to disable
optimizations in unstable development builds.
Moving out SCSI-specific stuff from diskimage.c into a new
diskimage_scsicmd.c.
Applying Hĺvard Eidnes' patch for SCSICDROM_READ_DISKINFO and
SCSICDROM_READ_TRACKINFO. (Not really tested yet.)
Implementing disk image "overlays" (to allow simple roll-back
to previous disk state). Adding a 'V' disk flag for this, and
updating the man page and misc.html.
20070325 Stability fix to cpu_dyntrans.c, when multiple physical pages
share the same initial table entry. (The ppp == NULL check
should be physpage_ofs == 0.) Bug found by analysing GXemul
against a version patched for Godson.
Fixing a second occurance of the same problem (also in
cpu_dyntrans.c).
Fixing a MAJOR physical page leak in cpu_dyntrans.c; pages
weren't _added_ to the set of translated pages, they _replaced_
all previous pages. It's amazing that this bug has been able
to live for this long. (Triggered when emulating >128MB RAM.)
20070326 Removing the GDB debugging stub support; it was too hackish
and ugly.
20070328 Moving around some native code generation skeleton code.
20070329 The -lm check in the configure script now also checks for sin()
in addition to sqrt(). (Thanks to Nigel Horne for noticing that
sqrt was not enough on Fedora Core 6.) (Not verified yet.)
20070330 Fixing an indexing bug in dev_sh4.c, found by using gcc version
4.3.0 20070323.
20070331 Some more experimentation with native code generation.
20070404 Attempting to fix some more SH4 SCIF interrupt bugs; rewriting
the SH interrupt assertion/deassertion code somewhat.
20070410 Splitting src/file.c into separate files in src/file/.
Cleanup: Removing the dummy TS7200, Walnut, PB1000, and
Meshcube emulation modes, and dev_epcom and dev_au1x00.
Removing the experimental CHIP8/RCA180x code; it wasn't really
working much lately, anyway. It was fun while it lasted.
Also removing the experimental Transputer CPU support.
20070412 Moving the section about how the dynamic translation system
works from intro.html to a separate translation.html file.
Minor SH fixes; attempting to get OpenBSD/landisk to run
without randomly bugging out, but no success yet.
20070413 SH SCI (serial bit interface) should now work together with a
(new) RS5C313 clock device (for Landisk emulation).
20070414 Moving Redhat/MIPS down from supported to experimental, in
guestoses.html.
Preparing for a new release; doing some regression testing etc.
============== RELEASE 0.4.5 ==============
Revision
34 -
Directory Listing
Modified
Mon Oct 8 16:21:17 2007 UTC
(16 years, 8 months ago)
by
dpavlin
++ trunk/HISTORY (local)
$Id: HISTORY,v 1.1480 2007/02/19 01:34:42 debug Exp $
20061029 Changing usleep(1) calls in the debugger to usleep(10000)
20061107 Adding a new disk image option (-d o...) which sets the ISO9660
filesystem base offset; also making some other hacks to allow
NetBSD/dreamcast and homebrew demos/games to boot directly
from a filesystem image.
Moving Dreamcast-specific stuff in the documentation to its
own page (dreamcast.html).
Adding a border to the Dreamcast PVR framebuffer.
20061108 Adding a -T command line option (again?), for halting the
emulator on unimplemented memory accesses.
20061109 Continuing on various SH4 and Dreamcast related things.
The emulator should now halt on more unimplemented device
accesses, instead of just printing a warning, forcing me to
actually implement missing stuff :)
20061111 Continuing on SH4 and Dreamcast stuff.
Adding a bogus Landisk (SH4) machine mode.
20061112 Implementing some parts of the Dreamcast GDROM device. With
some ugly hacks, NetBSD can (barely) mount an ISO image.
20061113 NetBSD/dreamcast now starts booting from the Live CD image,
but crashes randomly quite early on in the boot process.
20061122 Beginning on a skeleton interrupt.h and interrupt.c for the
new interrupt subsystem.
20061124 Continuing on the new interrupt system; taking the first steps
to attempt to connect CPUs (SuperH and MIPS) and devices
(dev_cons and SH4 timer interrupts) to it. Many things will
probably break from now on.
20061125 Converting dev_ns16550, dev_8253 to the new interrupt system.
Attempting to begin to convert the ISA bus.
20061130 Incorporating a patch from Brian Foley for the configure
script, which checks for X11 libs in /usr/X11R6/lib64 (which
is used on some Linux systems).
20061227 Adding a note in the man page about booting from Dreamcast
CDROM images (i.e. that no external kernel is needed).
20061229 Continuing on the interrupt system rewrite: beginning to
convert more devices, adding abort() calls for legacy interrupt
system calls so that everything now _has_ to be rewritten!
Almost all machine modes are now completely broken.
20061230 More progress on removing old interrupt code, mostly related
to the ISA bus + devices, the LCA bus (on AlphaBook1), and
the Footbridge bus (for CATS). And some minor PCI stuff.
Connecting the ARM cpu to the new interrupt system.
The CATS, NetWinder, and QEMU_MIPS machine modes now work with
the new interrupt system :)
20061231 Connecting PowerPC CPUs to the new interrupt system.
Making PReP machines (IBM 6050) work again.
Beginning to convert the GT PCI controller (for e.g. Malta
and Cobalt emulation). Some things work, but not everything.
Updating Copyright notices for 2007.
20070101 Converting dev_kn02 from legacy style to devinit; the 3max
machine mode now works with the new interrupt system :-]
20070105 Beginning to convert the SGI O2 machine to the new interrupt
system; finally converting O2 (IP32) devices to devinit, etc.
20070106 Continuing on the interrupt system redesign/rewrite; KN01
(PMAX), KN230, and Dreamcast ASIC interrupts should work again,
moving out stuff from machine.h and devices.h into the
corresponding devices, beginning the rewrite of i80321
interrupts, etc.
20070107 Beginning on the rewrite of Eagle interrupt stuff (PReP, etc).
20070117 Beginning the rewrite of Algor (V3) interrupts (finally
changing dev_v3 into devinit style).
20070118 Removing the "bus" registry concept from machine.h, because
it was practically meaningless.
Continuing on the rewrite of Algor V3 ISA interrupts.
20070121 More work on Algor interrupts; they are now working again,
well enough to run NetBSD/algor. :-)
20070122 Converting VR41xx (HPCmips) interrupts. NetBSD/hpcmips
can be installed using the new interrupt system :-)
20070123 Making the testmips mode work with the new interrupt system.
20070127 Beginning to convert DEC5800 devices to devinit, and to the
new interrupt system.
Converting Playstation 2 devices to devinit, and converting
the interrupt system. Also fixing a severe bug: the interrupt
mask register on Playstation 2 is bitwise _toggled_ on writes.
20070128 Removing the dummy NetGear machine mode and the 8250 device
(which was only used by the NetGear machine).
Beginning to convert the MacPPC GC (Grand Central) interrupt
controller to the new interrupt system.
Converting Jazz interrupts (PICA61 etc.) to the new interrupt
system. NetBSD/arc can be installed again :-)
Fixing the JAZZ timer (hardcoding it at 100 Hz, works with
NetBSD and it is better than a completely dummy timer as it
was before).
Converting dev_mp to the new interrupt system, although I
haven't had time to actually test it yet.
Completely removing src/machines/interrupts.c, cpu_interrupt
and cpu_interrupt_ack in src/cpu.c, and
src/include/machine_interrupts.h! Adding fatal error messages
+ abort() in the few places that are left to fix.
Converting dev_z8530 to the new interrupt system.
FINALLY removing the md_int struct completely from the
machine struct.
SH4 fixes (adding a PADDR invalidation in the ITLB replacement
code in memory_sh.c); the NetBSD/dreamcast LiveCD now runs
all the way to the login prompt, and can be interacted with :-)
Converting the CPC700 controller (PCI and interrupt controller
for PM/PPC) to the new interrupt system.
20070129 Fixing MACE ISA interrupts (SGI IP32 emulation). Both NetBSD/
sgimips' and OpenBSD/sgi's ramdisk kernels can now be
interacted with again.
20070130 Moving out the MIPS multi_lw and _sw instruction combinations
so that they are auto-generated at compile time instead.
20070131 Adding detection of amd64/x86_64 hosts in the configure script,
for doing initial experiments (again :-) with native code
generation.
Adding a -k command line option to set the size of the dyntrans
cache, and a -B command line option to disable native code
generation, even if GXemul was compiled with support for
native code generation for the specific host CPU architecture.
20070201 Experimenting with a skeleton for native code generation.
Changing the default behaviour, so that native code generation
is now disabled by default, and has to be enabled by using
-b on the command line.
20070202 Continuing the native code generation experiments.
Making PCI interrupts work for Footbridge again.
20070203 More native code generation experiments.
Removing most of the native code generation experimental code,
it does not make sense to include any quick hacks like this.
Minor cleanup/removal of some more legacy MIPS interrupt code.
20070204 Making i80321 interrupts work again (for NetBSD/evbarm etc.),
and fixing the timer at 100 Hz.
20070206 Experimenting with removing the wdc interrupt slowness hack.
20070207 Lowering the number of dyntrans TLB entries for MIPS from
192 to 128, resulting in a minor speed improvement.
Minor optimization to the code invalidation routine in
cpu_dyntrans.c.
20070208 Increasing (experimentally) the nr of dyntrans instructions per
loop from 60 to 120.
20070210 Commenting out (experimentally) the dyntrans_device_danger
detection in memory_rw.c.
Changing the testmips and baremips machines to use a revision 2
MIPS64 CPU by default, instead of revision 1.
Removing the dummy i960, IA64, x86, AVR32, and HP PA-RISC
files, the PC bios emulation, and the Olivetti M700 (ARC) and
db64360 emulation modes.
20070211 Adding an "mp" demo to the demos directory, which tests the
SMP functionality of the testmips machine.
Fixing PReP interrupts some more. NetBSD/prep now boots again.
20070216 Adding a "nop workaround" for booting Mach/PMAX to the
documentation; thanks to Artur Bujdoso for the values.
Converting more of the MacPPC interrupt stuff to the new
system.
Beginning to convert BeBox interrupts to the new system.
PPC603e should NOT have the PPC_NO_DEC flag! Removing it.
Correcting BeBox clock speed (it was set to 100 in the NetBSD
bootinfo block, but should be 33000000/4), allowing NetBSD
to start without using the (incorrect) PPC_NO_DEC hack.
20070217 Implementing (slow) AltiVec vector loads and stores, allowing
NetBSD/macppc to finally boot using the GENERIC kernel :-)
Updating the documentation with install instructions for
NetBSD/macppc.
20070218-19 Regression testing for the release.
============== RELEASE 0.4.4 ==============
Revision
32 -
Directory Listing
Added
Mon Oct 8 16:20:58 2007 UTC
(16 years, 8 months ago)
by
dpavlin
++ trunk/HISTORY (local)
$Id: HISTORY,v 1.1421 2006/11/06 05:32:37 debug Exp $
20060816 Adding a framework for emulated/virtual timers (src/timer.c),
using only setitimer().
Rewriting the mc146818 to use the new timer framework.
20060817 Adding a call to gettimeofday() every now and then (once every
second, at the moment) to resynch the timer if it drifts.
Beginning to convert the ISA timer interrupt mechanism (8253
and 8259) to use the new timer framework.
Removing the -I command line option.
20060819 Adding the -I command line option again, with new semantics.
Working on Footbridge timer interrupts; NetBSD/NetWinder and
NetBSD/CATS now run at correct speed, but unfortunately with
HUGE delays during bootup.
20060821 Some minor m68k updates. Adding the first instruction: nop. :)
Minor Alpha emulation updates.
20060822 Adding a FreeBSD development specific YAMON environment
variable ("khz") (as suggested by Bruce M. Simpson).
Moving YAMON environment variable initialization from
machine_evbmips.c into promemul/yamon.c, and adding some more
variables.
Continuing on the LCA PCI bus controller (for Alpha machines).
20060823 Continuing on the timer stuff: experimenting with MIPS count/
compare interrupts connected to the timer framework.
20060825 Adding bogus SCSI commands 0x51 (SCSICDROM_READ_DISCINFO) and
0x52 (SCSICDROM_READ_TRACKINFO) to the SCSI emulation layer,
to allow NetBSD/pmax 4.0_BETA to be installed from CDROM.
Minor updates to the LCA PCI controller.
20060827 Implementing a CHIP8 cpu mode, and a corresponding CHIP8
machine, for fun. Disassembly support for all instructions,
and most of the common instructions have been implemented: mvi,
mov_imm, add_imm, jmp, rand, cls, sprite, skeq_imm, jsr,
skne_imm, bcd, rts, ldr, str, mov, or, and, xor, add, sub,
font, ssound, sdelay, gdelay, bogus skup/skpr, skeq, skne.
20060828 Beginning to convert the CHIP8 cpu in the CHIP8 machine to a
(more correct) RCA 180x cpu. (Disassembly for all 1802
instructions has been implemented, but no execution yet, and
no 1805 extended instructions.)
20060829 Minor Alpha emulation updates.
20060830 Beginning to experiment a little with PCI IDE for SGI O2.
Fixing the cursor key mappings for MobilePro 770 emulation.
Fixing the LK201 warning caused by recent NetBSD/pmax.
The MIPS R41xx standby, suspend, and hibernate instructions now
behave like the RM52xx/MIPS32/MIPS64 wait instruction.
Fixing dev_wdc so it calculates correct (64-bit) offsets before
giving them to diskimage_access().
20060831 Continuing on Alpha emulation (OSF1 PALcode).
20060901 Minor Alpha updates; beginning on virtual memory pagetables.
Removed the limit for max nr of devices (in preparation for
allowing devices' base addresses to be changed during runtime).
Adding a hack for MIPS [d]mfc0 select 0 (except the count
register), so that the coproc register is simply copied.
The MIPS suspend instruction now exits the emulator, instead
of being treated as a wait instruction (this causes NetBSD/
hpcmips to get correct 'halt' behavior).
The VR41xx RTC now returns correct time.
Connecting the VR41xx timer to the timer framework (fixed at
128 Hz, for now).
Continuing on SPARC emulation, adding more instructions:
restore, ba_xcc, ble. The rectangle drawing demo works :)
Removing the last traces of the old ENABLE_CACHE_EMULATION
MIPS stuff (not usable with dyntrans anyway).
20060902 Splitting up src/net.c into several smaller files in its own
subdirectory (src/net/).
20060903 Cleanup of the files in src/net/, to make them less ugly.
20060904 Continuing on the 'settings' subsystem.
Minor progress on the SPARC emulation mode.
20060905 Cleanup of various things, and connecting the settings
infrastructure to various subsystems (emul, machine, cpu, etc).
Changing the lk201 mouse update routine to not rely on any
emulated hardware framebuffer cursor coordinates, but instead
always do (semi-usable) relative movements.
20060906 Continuing on the lk201 mouse stuff. Mouse behaviour with
multiple framebuffers (which was working in Ultrix) is now
semi-broken (but it still works, in a way).
Moving the documentation about networking into its own file
(networking.html), and refreshing it a bit. Adding an example
of how to use ethernet frame direct-access (udp_snoop).
20060907 Continuing on the settings infrastructure.
20060908 Minor updates to SH emulation: for 32-bit emulation: delay
slots and the 'jsr @Rn' instruction. I'm putting 64-bit SH5 on
ice, for now.
20060909-10 Implementing some more 32-bit SH instructions. Removing the
64-bit mode completely. Enough has now been implemented to run
the rectangle drawing demo. :-)
20060912 Adding more SH instructions.
20060916 Continuing on SH emulation (some more instructions: div0u,
div1, rotcl/rotcr, more mov instructions, dt, braf, sets, sett,
tst_imm, dmuls.l, subc, ldc_rm_vbr, movt, clrt, clrs, clrmac).
Continuing on the settings subsystem (beginning on reading/
writing settings, removing bugs, and connecting more cpus to
the framework).
20060919 More work on SH emulation; adding an ldc banked instruction,
and attaching a 640x480 framebuffer to the Dreamcast machine
mode (NetBSD/dreamcast prints the NetBSD copyright banner :-),
and then panics).
20060920 Continuing on the settings subsystem.
20060921 Fixing the Footbridge timer stuff so that NetBSD/cats and
NetBSD/netwinder boot up without the delays.
20060922 Temporarily hardcoding MIPS timer interrupt to 100 Hz. With
'wait' support disabled, NetBSD/malta and Linux/malta run at
correct speed.
20060923 Connecting dev_gt to the timer framework, so that NetBSD/cobalt
runs at correct speed.
Moving SH4-specific memory mapped registers into its own
device (dev_sh4.c).
Running with -N now prints "idling" instead of bogus nr of
instrs/second (which isn't valid anyway) while idling.
20060924 Algor emulation should now run at correct speed.
Adding disassembly support for some MIPS64 revision 2
instructions: ext, dext, dextm, dextu.
20060926 The timer framework now works also when the MIPS wait
instruction is used.
20060928 Re-implementing checks for coprocessor availability for MIPS
cop0 instructions. (Thanks to Carl van Schaik for noticing the
lack of cop0 availability checks.)
20060929 Implementing an instruction combination hack which treats
NetBSD/pmax' idle loop as a wait-like instruction.
20060930 The ENTRYHI_R_MASK was missing in (at least) memory_mips_v2p.c,
causing TLB lookups to sometimes succeed when they should have
failed. (A big thank you to Juli Mallett for noticing the
problem.)
Adding disassembly support for more MIPS64 revision 2 opcodes
(seb, seh, wsbh, jalr.hb, jr.hb, synci, ins, dins, dinsu,
dinsm, dsbh, dshd, ror, dror, rorv, drorv, dror32). Also
implementing seb, seh, dsbh, dshd, and wsbh.
Implementing an instruction combination hack for Linux/pmax'
idle loop, similar to the NetBSD/pmax case.
20061001 Changing the NetBSD/sgimips install instructions to extract
files from an iso image, instead of downloading them via ftp.
20061002 More-than-31-bit userland addresses in memory_mips_v2p.c were
not actually working; applying a fix from Carl van Schaik to
enable them to work + making some other updates (adding kuseg
support).
Fixing hpcmips (vr41xx) timer initialization.
Experimenting with O(n)->O(1) reduction in the MIPS TLB lookup
loop. Seems to work both for R3000 and non-R3000.
20061003 Continuing a little on SH emulation (adding more control
registers; mini-cleanup of memory_sh.c).
20061004 Beginning on a dev_rtc, a clock/timer device for the test
machines; also adding a demo, and some documentation.
Fixing a bug in SH "mov.w @(disp,pc),Rn" (the result wasn't
sign-extended), and adding the addc and ldtlb instructions.
20061005 Contining on SH emulation: virtual to physical address
translation, and a skeleton exception mechanism.
20061006 Adding more SH instructions (various loads and stores, rte,
negc, muls.w, various privileged register-move instructions).
20061007 More SH instructions: various move instructions, trapa, div0s,
float, fdiv, ftrc.
Continuing on dev_rtc; removing the rtc demo.
20061008 Adding a dummy Dreamcast PROM module. (Homebrew Dreamcast
programs using KOS libs need this.)
Adding more SH instructions: "stc vbr,rn", rotl, rotr, fsca,
fmul, fadd, various floating-point moves, etc. A 256-byte
demo for Dreamcast runs :-)
20061012 Adding the SH "lds Rm,pr" and bsr instructions.
20061013 More SH instructions: "sts fpscr,rn", tas.b, and some more
floating point instructions, cmp/str, and more moves.
Adding a dummy dev_pvr (Dreamcast graphics controller).
20061014 Generalizing the expression evaluator (used in the built-in
debugger) to support parentheses and +-*/%^&|.
20061015 Removing the experimental tlb index hint code in
mips_memory_v2p.c, since it didn't really have any effect.
20061017 Minor SH updates; adding the "sts pr,Rn", fcmp/gt, fneg,
frchg, and some other instructions. Fixing missing sign-
extension in an 8-bit load instruction.
20061019 Adding a simple dev_dreamcast_rtc.
Implementing memory-mapped access to the SH ITLB/UTLB arrays.
20061021 Continuing on various SH and Dreamcast things: sh4 timers,
debug messages for dev_pvr, fixing some virtual address
translation bugs, adding the bsrf instruction.
The NetBSD/dreamcast GENERIC_MD kernel now reaches userland :)
Adding a dummy dev_dreamcast_asic.c (not really useful yet).
Implementing simple support for Store Queues.
Beginning on the PVR Tile Accelerator.
20061022 Generalizing the PVR framebuffer to support off-screen drawing,
multiple bit-depths, etc. (A small speed penalty, but most
likely worth it.)
Adding more SH instructions (mulu.w, fcmp/eq, fsub, fmac,
fschg, and some more); correcting bugs in "fsca" and "float".
20061024 Adding the SH ftrv (matrix * vector) instruction. Marcus
Comstedt's "tatest" example runs :) (wireframe only).
Correcting disassembly for SH floating point instructions that
use the xd* registers.
Adding the SH fsts instruction.
In memory_device_dyntrans_access(), only the currently used
range is now invalidated, and not the entire device range.
20061025 Adding a dummy AVR32 cpu mode skeleton.
20061026 Various Dreamcast updates; beginning on a Maple bus controller.
20061027 Continuing on the Maple bus. A bogus Controller, Keyboard, and
Mouse can now be detected by NetBSD and KOS homebrew programs.
Cleaning up the SH4 Timer Management Unit, and beginning on
SH4 interrupts.
Implementing the Dreamcast SYSASIC.
20061028 Continuing on the SYSASIC.
Adding the SH fsqrt instruction.
memory_sh.c now actually scans the ITLB.
Fixing a bug in dev_sh4.c, related to associative writes into
the memory-mapped UTLB array. NetBSD/dreamcast now reaches
userland stably, and prints the "Terminal type?" message :-]
Implementing enough of the Dreamcast keyboard to make NetBSD
accept it for input.
Enabling SuperH for stable (non-development) builds.
Adding NetBSD/dreamcast to the documentation, although it
doesn't support root-on-nfs yet.
20061029 Changing usleep(1) calls in the debugger to to usleep(10000)
(according to Brian Foley, this makes GXemul run better on
MacOS X).
Making the Maple "Controller" do something (enough to barely
interact with dcircus.elf).
20061030-31 Some progress on the PVR. More test programs start running (but
with strange output).
Various other SH4-related updates.
20061102 Various Dreamcast and SH4 updates; more KOS demos run now.
20061104 Adding a skeleton dev_mb8696x.c (the Dreamcast's LAN adapter).
20061105 Continuing on the MB8696x; NetBSD/dreamcast detects it as mbe0.
Testing for the release.
============== RELEASE 0.4.3 ==============