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$Id: HISTORY,v 1.988 2005/10/11 03:53:57 debug Exp $ |
$Id: HISTORY,v 1.1055 2005/11/25 22:48:36 debug Exp $ |
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Changelog for GXemul: |
Changelog for GXemul: |
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2311 |
20051010 Small hack to not update virtual translation tables if memory |
20051010 Small hack to not update virtual translation tables if memory |
2312 |
accesses are done with the NO_EXCEPTION flag; a time reduction |
accesses are done with the NO_EXCEPTION flag; a time reduction |
2313 |
of almost a factor 2 for a full NetBSD/cats install. :-) |
of almost a factor 2 for a full NetBSD/cats install. :-) |
2314 |
20051011 Passing -A as the default boot arg for CATS (works fine with |
20051011 Passing -A as the default boot arg for CATS (works fine with |
2315 |
OpenBSD/cats). |
OpenBSD/cats). |
2316 |
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2317 |
============== RELEASE 0.3.6.1 ============== |
============== RELEASE 0.3.6.1 ============== |
2318 |
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2319 |
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20051012 Fixing the VGA cursor offset bug, and speeding up framebuffer |
2320 |
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redraws if character cells contain the same thing as during |
2321 |
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the last redraw. |
2322 |
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20051013 Adding a slow strd ARM instruction hack. |
2323 |
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20051017 Minor updates: Adding a dummy i80321 Verde controller (for |
2324 |
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XScale emulation), fixing the disassembly of the ARM "ldrd" |
2325 |
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instruction, adding "support" for less-than-4KB pages for ARM |
2326 |
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(by not adding them to translation tables). |
2327 |
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20051020 Continuing on some HPCarm stuff. A NetBSD/hpcarm kernel prints |
2328 |
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some boot messages on an emulated Jornada 720. |
2329 |
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Making dev_ram work better with dyntrans (speeds up some things |
2330 |
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quite a bit). |
2331 |
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20051021 Automatically generating some of the most common ARM load/store |
2332 |
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multiple instructions. |
2333 |
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20051022 Better statistics gathering for the ARM load/store multiple. |
2334 |
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Various other dyntrans and device updates. |
2335 |
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20051023 Various minor updates. |
2336 |
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20051024 Continuing; minor device and dyntrans fine-tuning. Adding the |
2337 |
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first "reasonable" instruction combination hacks for ARM (the |
2338 |
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cores of NetBSD/cats' memset and memcpy). |
2339 |
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20051025 Fixing a dyntrans-related bug in dev_vga. Also changing the |
2340 |
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dyntrans low/high access notification to only be updated on |
2341 |
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writes, not reads. Hopefully it will be enough. (dev_vga in |
2342 |
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charcell mode now seems to work correctly with both reads and |
2343 |
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writes.) |
2344 |
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Experimenting with gathering dyntrans statistics (which parts |
2345 |
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of emulated RAM that are actually executed), and adding |
2346 |
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instruction combination hacks for cache cleaning and a part of |
2347 |
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NetBSD's scanc() function. |
2348 |
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20051026 Adding a bitmap for ARM emulation which indicates if a page is |
2349 |
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(specifically) user accessible; loads and stores with the t- |
2350 |
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flag set can now use the translation arrays, which results in |
2351 |
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a measurable speedup. |
2352 |
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20051027 Dyntrans updates; adding an extra bitmap array for 32-bit |
2353 |
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emulation modes, speeding up the check whether a physical page |
2354 |
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has any code translations or not (O(n) -> O(1)). Doing a |
2355 |
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similar reduction of O(n) to O(1) by avoiding the scan through |
2356 |
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the translation entries on a translation update (32-bit mode |
2357 |
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only). |
2358 |
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Various other minor hacks. |
2359 |
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20051029 Quick release, without any testing at all. |
2360 |
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2361 |
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============== RELEASE 0.3.6.2 ============== |
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2363 |
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20051031 Adding disassembly support for more ARM instructions (clz, |
2364 |
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smul* etc), and adding a hack to support "new tiny" pages |
2365 |
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for StrongARM. |
2366 |
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20051101 Minor documentation updates (NetBSD 2.0.2 -> 2.1, and OpenBSD |
2367 |
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3.7 -> 3.8, and lots of testing). |
2368 |
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Changing from 1-sector PIO mode 0 transfers to 128-sector PIO |
2369 |
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mode 3 (in dev_wdc). |
2370 |
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Various minor ARM dyntrans updates (pc-relative loads from |
2371 |
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within the same page as the instruction are now treated as |
2372 |
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constant "mov"). |
2373 |
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20051102 Re-enabling instruction combinations (they were accidentally |
2374 |
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disabled). |
2375 |
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Dyntrans TLB entries are now overwritten using a round-robin |
2376 |
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scheme instead of randomly. This increases performance. |
2377 |
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Fixing a typo in file.c (thanks to Chuan-Hua Chang for |
2378 |
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noticing it). |
2379 |
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Experimenting with adding ATAPI support to dev_wdc (to make |
2380 |
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emulated *BSD detect cdroms as cdroms, not harddisks). |
2381 |
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20051104 Various minor updates. |
2382 |
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20051105 Continuing on the ATAPI emulation. Seems to work well enough |
2383 |
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for a NetBSD/cats installation, but not OpenBSD/cats. |
2384 |
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Various other updates. |
2385 |
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20051106 Modifying the -Y command line option to allow scaleup with |
2386 |
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certain graphic controllers (only dev_vga so far), not just |
2387 |
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scaledown. |
2388 |
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Some minor dyntrans cleanups. |
2389 |
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20051107 Beginning a cleanup up the PCI subsystem (removing the |
2390 |
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read_register hack, etc). |
2391 |
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20051108 Continuing the cleanup; splitting up some pci devices into a |
2392 |
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normal autodev device and some separate pci glue code. |
2393 |
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20051109 Continuing on the PCI bus stuff; all old pci_*.c have been |
2394 |
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incorporated into normal devices and/or rewritten as glue code |
2395 |
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only, adding a dummy Intel 82371AB PIIX4 for Malta (not really |
2396 |
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tested yet). |
2397 |
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Minor pckbc fix so that Linux doesn't complain. |
2398 |
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Working on the DEC 21143 NIC (ethernet mac rom stuff mostly). |
2399 |
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Various other minor fixes. |
2400 |
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20051110 Some more ARM dyntrans fine-tuning (e.g. some instruction |
2401 |
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combinations (cmps followed by conditional branch within the |
2402 |
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same page) and special cases for DPIs with regform when the |
2403 |
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shifter isn't used). |
2404 |
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20051111 ARM dyntrans updates: O(n)->O(1) for just-mark-as-non- |
2405 |
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writable in the generic pc_to_pointers function, and some other |
2406 |
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minor hacks. |
2407 |
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Merging Cobalt and evbmips (Malta) ISA interrupt handling, |
2408 |
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and some minor fixes to allow Linux to accept harddisk irqs. |
2409 |
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20051112 Minor device updates (pckbc, dec21143, lpt, ...), most |
2410 |
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importantly fixing the ALI M1543/M5229 so that harddisk irqs |
2411 |
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work with Linux/CATS. |
2412 |
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20051113 Some more generalizations of the PCI subsystem. |
2413 |
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Finally took the time to add a hack for SCSI CDROM TOCs; this |
2414 |
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enables OpenBSD to use partition 'a' (as needed by the OpenBSD |
2415 |
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installer), and Windows NT's installer to get a bit further. |
2416 |
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Also fixing dev_wdc to allow Linux to detect ATAPI CDROMs. |
2417 |
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Continuing on the DEC 21143. |
2418 |
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20051114 Minor ARM dyntrans tweaks; ARM cmps+branch optimization when |
2419 |
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comparing with 0, and generalizing the xchg instr. comb. |
2420 |
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Adding disassembly of ARM mrrc/mcrr and q{,d}{add,sub}. |
2421 |
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20051115 Continuing on various PPC things (BATs, other address trans- |
2422 |
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lation things, various loads/stores, BeBox emulation, etc.). |
2423 |
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Beginning to work on PPC interrupt/exception support. |
2424 |
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20051116 Factoring out some code which initializes legacy ISA devices |
2425 |
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from those machines that use them (bus_isa). |
2426 |
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Continuing on PPC interrupt/exception support. |
2427 |
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20051117 Minor Malta fixes: RTC year offset = 80, disabling a speed hack |
2428 |
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which caused NetBSD to detect a too fast cpu, and adding a new |
2429 |
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hack to make Linux detect a faster cpu. |
2430 |
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Continuing on the Artesyn PM/PPC emulation mode. |
2431 |
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Adding an Algor emulation skeleton (P4032 and P5064); |
2432 |
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implementing some of the basics. |
2433 |
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Continuing on PPC emulation in general; usage of unimplemented |
2434 |
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SPRs is now easier to track, continuing on memory/exception |
2435 |
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related issues, etc. |
2436 |
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20051118 More work on PPC emulation (tgpr0..3, exception handling, |
2437 |
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memory stuff, syscalls, etc.). |
2438 |
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20051119 Changing the ARM dyntrans code to mostly use cpu->pc, and not |
2439 |
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necessarily use arm reg 15. Seems to work. |
2440 |
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Various PPC updates; continuing on the PReP emulation mode. |
2441 |
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20051120 Adding a workaround/hack to dev_mc146818 to allow NetBSD/prep |
2442 |
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to detect the clock. |
2443 |
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20051121 More cleanup of the PCI bus (memory and I/O bases, etc). |
2444 |
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Continuing on various PPC things (decrementer and timebase, |
2445 |
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WDCs on obio (on PReP) use irq 13, not 14/15). |
2446 |
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20051122 Continuing on the CPC700 controller (interrupts etc) for PMPPC, |
2447 |
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and on PPC stuff in general. |
2448 |
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Finally! After some bug fixes to the virtual to physical addr |
2449 |
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translation, NetBSD/{prep,pmppc} 2.1 reach userland and are |
2450 |
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stable enough to be interacted with. |
2451 |
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More PCI updates; reverse-endian device access for PowerPC etc. |
2452 |
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20051123 Generalizing the IEEE floating point subsystem (moving it out |
2453 |
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from src/cpus/cpu_mips_coproc.c into a new src/float_emul.c). |
2454 |
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Input via slave xterms was sometimes not really working; fixing |
2455 |
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this for ns16550, and a warning message is now displayed if |
2456 |
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multiple non-xterm consoles are active. |
2457 |
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Adding some PPC floating point support, etc. |
2458 |
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Various interrupt related updates (dev_wdc, _ns16550, _8259, |
2459 |
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and the isa32 common code in machine.c). |
2460 |
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NetBSD/prep can now be installed! :-) (Well, with some manual |
2461 |
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commands necessary before running sysinst.) Updating the |
2462 |
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documentation and various other things to reflect this. |
2463 |
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20051124 Various minor documentation updates. |
2464 |
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Continuing the work on the DEC 21143 NIC. |
2465 |
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20051125 LOTS of work on the 21143. Both OpenBSD and NetBSD work fine |
2466 |
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with it now, except that OpenBSD sometimes gives a time-out |
2467 |
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warning. |
2468 |
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Minor documentation updates. |
2469 |
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2470 |
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============== RELEASE 0.3.7 ============== |
2471 |
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