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++ 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 ==============
++ 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 ==============
++ 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 ==============
++ 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 ==============
++ 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 ==============
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