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$Id: HISTORY,v 1.815 2005/06/27 23:04:35 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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--------------------- |
--------------------- |
2035 |
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|
2036 |
============== RELEASE 0.3.4 ============== |
============== RELEASE 0.3.4 ============== |
2037 |
|
|
2038 |
|
20050628 Continuing the work on the ARM translation engine. end_of_page |
2039 |
|
works. Experimenting with load/store translation caches |
2040 |
|
(virtual -> physical -> host). |
2041 |
|
20050629 More ARM stuff (memory access translation cache, mostly). This |
2042 |
|
might break a lot of stuff elsewhere, probably some MIPS- |
2043 |
|
related translation things. |
2044 |
|
20050630 Many load/stores are now automatically generated and included |
2045 |
|
into cpu_arm_instr.c; 1024 functions in total (!). |
2046 |
|
Fixes based on feedback from Alec Voropay: only print 8 hex |
2047 |
|
digits instead of 16 in some cases when emulating 32-bit |
2048 |
|
machines; similar 8 vs 16 digit fix for breakpoint addresses; |
2049 |
|
4Kc has 16 TLB entries, not 48; the MIPS config select1 |
2050 |
|
register is now printed with "reg ,0". |
2051 |
|
Also changing many other occurances of 16 vs 8 digit output. |
2052 |
|
Adding cache associativity fields to mips_cpu_types.h; updating |
2053 |
|
some other cache fields; making the output of |
2054 |
|
mips_cpu_dumpinfo() look nicer. |
2055 |
|
Generalizing the bintrans stuff for device accesses to also |
2056 |
|
work with the new translation system. (This might also break |
2057 |
|
some MIPS things.) |
2058 |
|
Adding multi-load/store instructions to the ARM disassembler |
2059 |
|
and the translator, and some optimizations of various kinds. |
2060 |
|
20050701 Adding a simple dev_disk (it can read/write sectors from |
2061 |
|
disk images). |
2062 |
|
20050712 Adding dev_ether (a simple ethernet send/receive device). |
2063 |
|
Debugger command "ninstrs" for toggling show_nr_of_instructions |
2064 |
|
during runtime. |
2065 |
|
Removing the framebuffer logo. |
2066 |
|
20050713 Continuing on dev_ether. |
2067 |
|
Adding a dummy cpu_alpha (again). |
2068 |
|
20050714 More work on cpu_alpha. |
2069 |
|
20050715 More work on cpu_alpha. Many instructions work, enough to run |
2070 |
|
a simple framebuffer fill test (similar to the ARM test). |
2071 |
|
20050716 More Alpha stuff. |
2072 |
|
20050717 Minor updates (Alpha stuff). |
2073 |
|
20050718 Minor updates (Alpha stuff). |
2074 |
|
20050719 Generalizing some Alpha instructions. |
2075 |
|
20050720 More Alpha-related updates. |
2076 |
|
20050721 Continuing on cpu_alpha. Importing rpb.h from NetBSD/alpha. |
2077 |
|
20050722 Alpha-related updates: userland stuff (Hello World using |
2078 |
|
write() compiled statically for FreeBSD/Alpha runs fine), and |
2079 |
|
more instructions are now implemented. |
2080 |
|
20050723 Fixing ldq_u and stq_u. |
2081 |
|
Adding more instructions (conditional moves, masks, extracts, |
2082 |
|
shifts). |
2083 |
|
20050724 More FreeBSD/Alpha userland stuff, and adding some more |
2084 |
|
instructions (inserts). |
2085 |
|
20050725 Continuing on the Alpha stuff. (Adding dummy ldt/stt.) |
2086 |
|
Adding a -A command line option to turn off alignment checks |
2087 |
|
in some cases (for translated code). |
2088 |
|
Trying to remove the old bintrans code which updated the pc |
2089 |
|
and nr_of_executed_instructions for every instruction. |
2090 |
|
20050726 Making another attempt att removing the pc/nr of instructions |
2091 |
|
code. This time it worked, huge performance increase for |
2092 |
|
artificial test code, but performance loss for real-world |
2093 |
|
code :-( so I'm scrapping that code for now. |
2094 |
|
Tiny performance increase on Alpha (by using ret instead of |
2095 |
|
jmp, to play nice with the Alpha's branch prediction) for the |
2096 |
|
old MIPS bintrans backend. |
2097 |
|
20050727 Various minor fixes and cleanups. |
2098 |
|
20050728 Switching from a 2-level virtual to host/physical translation |
2099 |
|
system for ARM emulation, to a 1-level translation. |
2100 |
|
Trying to switch from 2-level to 1-level for the MIPS bintrans |
2101 |
|
system as well (Alpha only, so far), but there is at least one |
2102 |
|
problem: caches and/or how they work with device mappings. |
2103 |
|
20050730 Doing the 2-level to 1-level conversion for the i386 backend. |
2104 |
|
The cache/device bug is still there for R2K/3K :( |
2105 |
|
Various other minor updates (Malta etc). |
2106 |
|
The mc146818 clock now updates the UIP bit in a way which works |
2107 |
|
better with Linux for at least sgimips and Malta emulation. |
2108 |
|
Beginning the work on refactoring the dyntrans system. |
2109 |
|
20050731 Continuing the dyntrans refactoring. |
2110 |
|
Fixing a small but serious host alignment bug in memory_rw. |
2111 |
|
Adding support for big-endian load/stores to the i386 bintrans |
2112 |
|
backend. |
2113 |
|
Another minor i386 bintrans backend update: stores from the |
2114 |
|
zero register are now one (or two) loads shorter. |
2115 |
|
The slt and sltu instructions were incorrectly implemented for |
2116 |
|
the i386 backend; only using them for 32-bit mode for now. |
2117 |
|
20050801 Continuing the dyntrans refactoring. |
2118 |
|
Cleanup of the ns16550 serial controller (removing unnecessary |
2119 |
|
code). |
2120 |
|
Bugfix (memory corruption bug) in dev_gt, and a patch/hack from |
2121 |
|
Alec Voropay for Linux/Malta. |
2122 |
|
20050802 More cleanup/refactoring of the dyntrans subsystem: adding |
2123 |
|
phys_page pointers to the lookup tables, for quick jumps |
2124 |
|
between translated pages. |
2125 |
|
Better fix for the ns16550 device (but still no real FIFO |
2126 |
|
functionality). |
2127 |
|
Converting cpu_ppc to the new dyntrans system. This means that |
2128 |
|
I will have to start from scratch with implementing each |
2129 |
|
instruction, and figure out how to implement dual 64/32-bit |
2130 |
|
modes etc. |
2131 |
|
Removing the URISC CPU family, because it was useless. |
2132 |
|
20050803 When selecting a machine type, the main type can now be omitted |
2133 |
|
if the subtype name is unique. (I.e. -E can be omitted.) |
2134 |
|
Fixing a dyntrans/device update bug. (Writes to offset 0 of |
2135 |
|
a device could sometimes go unnoticed.) |
2136 |
|
Adding an experimental "instruction combination" hack for |
2137 |
|
ARM for memset-like byte fill loops. |
2138 |
|
20050804 Minor progress on cpu_alpha and related things. |
2139 |
|
Finally fixing the MIPS dmult/dmultu bugs. |
2140 |
|
Fixing some minor TODOs. |
2141 |
|
20050805 Generalizing the 8259 PIC. It now also works with Cobalt |
2142 |
|
and evbmips emulation, in addition to the x86 hack. |
2143 |
|
Finally converting the ns16550 device to use devinit. |
2144 |
|
Continuing the work on the dyntrans system. Thinking about |
2145 |
|
how to add breakpoints. |
2146 |
|
20050806 More dyntrans updates. Breakpoints seem to work now. |
2147 |
|
20050807 Minor updates: cpu_alpha and related things; removing |
2148 |
|
dev_malta (as it isn't used any more). |
2149 |
|
Dyntrans: working on general "show trace tree" support. |
2150 |
|
The trace tree stuff now works with both the old MIPS code and |
2151 |
|
with newer dyntrans modes. :) |
2152 |
|
Continuing on Alpha-related stuff (trying to get *BSD to boot |
2153 |
|
a bit further, adding more instructions, etc). |
2154 |
|
20050808 Adding a dummy IA64 cpu family, and continuing the refactoring |
2155 |
|
of the dyntrans system. |
2156 |
|
Removing the regression test stuff, because it was more or |
2157 |
|
less useless. |
2158 |
|
Adding loadlinked/storeconditional type instructions to the |
2159 |
|
Alpha emulation. (Needed for Linux/alpha. Not very well tested |
2160 |
|
yet.) |
2161 |
|
20050809 The function call trace tree now prints a per-function nr of |
2162 |
|
arguments. (Semi-meaningless, since that data isn't read yet |
2163 |
|
from the ELFs; some hardcoded symbols such as memcpy() and |
2164 |
|
strlen() work fine, though.) |
2165 |
|
More dyntrans refactoring; taking out more of the things that |
2166 |
|
are common to all cpu families. |
2167 |
|
20050810 Working on adding support for "dual mode" for PPC dyntrans |
2168 |
|
(i.e. both 64-bit and 32-bit modes). |
2169 |
|
(Re)adding some simple PPC instructions. |
2170 |
|
20050811 Adding a dummy M68K cpu family. The dyntrans system isn't ready |
2171 |
|
for variable-length ISAs yet, so it's completely bogus so far. |
2172 |
|
Re-adding more PPC instructions. |
2173 |
|
Adding a hack to src/file.c which allows OpenBSD/mac68k a.out |
2174 |
|
kernels to be loaded. |
2175 |
|
Beginning to add PPC loads/stores. So far they only work in |
2176 |
|
32-bit mode. |
2177 |
|
20050812 The configure file option "add_remote" now accepts symbolic |
2178 |
|
host names, in addition to numeric IPv4 addresses. |
2179 |
|
Re-adding more PPC instructions. |
2180 |
|
20050814 Continuing to port back more PPC instructions. |
2181 |
|
Found and fixed the cache/device write-update bug for 32-bit |
2182 |
|
MIPS bintrans. :-) |
2183 |
|
Triggered a really weird and annoying bug in Compaq's C |
2184 |
|
compiler; ccc sometimes outputs code which loads from an |
2185 |
|
address _before_ checking whether the pointer was NULL or not. |
2186 |
|
(I'm not sure how to handle this problem.) |
2187 |
|
20050815 Removing all of the old x86 instruction execution code; adding |
2188 |
|
a new (dummy) dyntrans module for x86. |
2189 |
|
Taking the first steps to extend the dyntrans system to support |
2190 |
|
variable-length instructions. |
2191 |
|
Slowly preparing for the next release. |
2192 |
|
20050816 Adding a dummy SPARC cpu module. |
2193 |
|
Minor updates (documentation etc) for the release. |
2194 |
|
|
2195 |
|
============== RELEASE 0.3.5 ============== |
2196 |
|
|
2197 |
|
20050816 Some success in decoding the way the SGI O2 PROM draws graphics |
2198 |
|
during bootup; lines/rectangles and bitmaps work, enough to |
2199 |
|
show the bootlogo etc. :-) |
2200 |
|
Adding more PPC instructions, and (dummy) BAT registers. |
2201 |
|
20050817 Updating the pckbc to support scancode type 3 keyboards |
2202 |
|
(required in order to interact with the SGI O2 PROM). |
2203 |
|
Adding more PPC instructions. |
2204 |
|
20050818 Adding more ARM instructions; general register forms. |
2205 |
|
Importing armreg.h from NetBSD (ARM cpu ids). Adding a (dummy) |
2206 |
|
CATS machine mode (using SA110 as the default CPU). |
2207 |
|
Continuing on general dyntrans related stuff. |
2208 |
|
20050819 Register forms for ARM load/stores. Gaah! The Compaq C Compiler |
2209 |
|
bug is triggered for ARM loads as well, not just PPC :-( |
2210 |
|
Adding full support for ARM PC-relative load/stores, and load/ |
2211 |
|
stores where the PC register is the destination register. |
2212 |
|
Adding support for ARM a.out binaries. |
2213 |
|
20050820 Continuing to add more ARM instructions, and correcting some |
2214 |
|
bugs. Continuing on CATS emulation. |
2215 |
|
More work on the PPC stuff. |
2216 |
|
20050821 Minor PPC and ARM updates. Adding more machine types. |
2217 |
|
20050822 All ARM "data processing instructions" are now generated |
2218 |
|
automatically. |
2219 |
|
20050824 Beginning the work on the ARM system control coprocessor. |
2220 |
|
Adding support for ARM halfword load/stores, and signed loads. |
2221 |
|
20050825 Fixing an important bug related to the ARM condition codes. |
2222 |
|
OpenBSD/zaurus and NetBSD/netwinder now print some boot |
2223 |
|
messages. :) |
2224 |
|
Adding a dummy SH (Hitachi SuperH) cpu family. |
2225 |
|
Beginning to add some ARM virtual address translation. |
2226 |
|
MIPS bugfixes: unaligned PC now cause an ADEL exception (at |
2227 |
|
least for non-bintrans execution), and ADEL/ADES (not |
2228 |
|
TLBL/TLBS) are used if userland tries to access kernel space. |
2229 |
|
(Thanks to Joshua Wise for making me aware of these bugs.) |
2230 |
|
20050827 More work on the ARM emulation, and various other updates. |
2231 |
|
20050828 More ARM updates. |
2232 |
|
Finally taking the time to work on translation invalidation |
2233 |
|
(i.e. invalidating translated code mappings when memory is |
2234 |
|
written to). Hopefully this doesn't break anything. |
2235 |
|
20050829 Moving CPU related files from src/ to a new subdir, src/cpus/. |
2236 |
|
Moving PROM emulation stuff from src/ to src/promemul/. |
2237 |
|
Better debug instruction trace for ARM loads and stores. |
2238 |
|
20050830 Various ARM updates (correcting CMP flag calculation, etc). |
2239 |
|
20050831 PPC instruction updates. (Flag fixes, etc.) |
2240 |
|
20050901 Various minor PPC and ARM instruction emulation updates. |
2241 |
|
Minor OpenFirmware emulation updates. |
2242 |
|
20050903 Adding support for adding arbitrary ARM coprocessors (with |
2243 |
|
the i80321 I/O coprocessor as a first test). |
2244 |
|
Various other ARM and PPC updates. |
2245 |
|
20050904 Adding some SHcompact disassembly routines. |
2246 |
|
20050907 (Re)adding a dummy HPPA CPU module, and a dummy i960 module. |
2247 |
|
20050908 Began hacking on some Apple Partition Table support. |
2248 |
|
20050909 Adding support for loading Mach-O (Darwin PPC) binaries. |
2249 |
|
20050910 Fixing an ARM bug (Carry flag was incorrectly updated for some |
2250 |
|
data processing instructions); OpenBSD/cats and NetBSD/ |
2251 |
|
netwinder get quite a bit further now. |
2252 |
|
Applying a patch to dev_wdc, and a one-liner to dev_pcic, to |
2253 |
|
make them work better when emulating new versions of OpenBSD. |
2254 |
|
(Thanks to Alexander Yurchenko for the patches.) |
2255 |
|
Also doing some other minor updates to dev_wdc. (Some cleanup, |
2256 |
|
and finally converting to devinit, etc.) |
2257 |
|
20050912 IRIX doesn't have u_int64_t by default (noticed by Andreas |
2258 |
|
<avr@gnulinux.nl>); configure updated to reflect this. |
2259 |
|
Working on ARM register bank switching, CPSR vs SPSR issues, |
2260 |
|
and beginning the work on interrupt/exception support. |
2261 |
|
20050913 Various minor ARM updates (speeding up load/store multiple, |
2262 |
|
and fixing a ROR bug in R(); NetBSD/cats now boots as far as |
2263 |
|
OpenBSD/cats). |
2264 |
|
20050917 Adding a dummy Atmel AVR (8-bit) cpu family skeleton. |
2265 |
|
20050918 Various minor updates. |
2266 |
|
20050919 Symbols are now loaded from Mach-O executables. |
2267 |
|
Continuing the work on adding ARM exception support. |
2268 |
|
20050920 More work on ARM stuff: OpenBSD/cats and NetBSD/cats reach |
2269 |
|
userland! :-) |
2270 |
|
20050921 Some more progress on ARM interrupt specifics. |
2271 |
|
20050923 Fixing linesize for VR4121 (patch by Yurchenko). Also fixing |
2272 |
|
linesizes/cachesizes for some other VR4xxx. |
2273 |
|
Adding a dummy Acer Labs M1543 PCI-ISA bridge (for CATS) and a |
2274 |
|
dummy Symphony Labs 83C553 bridge (for Netwinder), usable by |
2275 |
|
dev_footbridge. |
2276 |
|
20050924 Some PPC progress. |
2277 |
|
20050925 More PPC progress. |
2278 |
|
20050926 PPC progress (fixing some bugs etc); Darwin's kernel gets |
2279 |
|
slightly further than before. |
2280 |
|
20050928 Various updates: footbridge/ISA/pciide stuff, and finally |
2281 |
|
fixing the VGA text scroll-by-changing-the-base-offset bug. |
2282 |
|
20050930 Adding a dummy S3 ViRGE pci card for CATS emulation, which |
2283 |
|
both NetBSD and OpenBSD detects as VGA. |
2284 |
|
Continuing on Footbridge (timers, ISA interrupt stuff). |
2285 |
|
20051001 Continuing... there are still bugs, probably interrupt- |
2286 |
|
related. |
2287 |
|
20051002 More work on the Footbridge (interrupt stuff). |
2288 |
|
20051003 Various minor updates. (Trying to find the bug(s).) |
2289 |
|
20051004 Continuing on the ARM stuff. |
2290 |
|
20051005 More ARM-related fixes. |
2291 |
|
20051007 FINALLY! Found and fixed 2 ARM bugs: 1 memory related, and the |
2292 |
|
other was because of an error in the ARM manual (load multiple |
2293 |
|
with the S-bit set should _NOT_ load usermode registers, as the |
2294 |
|
manual says, but it should load saved registers, which may or |
2295 |
|
may not happen to be usermode registers). |
2296 |
|
NetBSD/cats and OpenBSD/cats seem to install fine now :-) |
2297 |
|
except for a minor bug at the end of the OpenBSD/cats install. |
2298 |
|
Updating the documentation, preparing for the next release. |
2299 |
|
20051008 Continuing with release testing and cleanup. |
2300 |
|
|
2301 |
|
============== RELEASE 0.3.6 ============== |
2302 |
|
|
2303 |
|
20051008 The bug was not because of faulty ARM documentation after all, |
2304 |
|
but it was related to those parts of the code. |
2305 |
|
Fixing the RTC (dev_mc146818) to work with CATS. |
2306 |
|
20051009 Rewriting the R() function; now there are 8192 automatically |
2307 |
|
generated smaller functions doing the same thing, but hopefully |
2308 |
|
faster. This also fixes some bugs which were triggered when |
2309 |
|
trying to compile GXemul inside itself. :-) |
2310 |
|
Adding a dummy dev_lpt. |
2311 |
|
20051010 Small hack to not update virtual translation tables if memory |
2312 |
|
accesses are done with the NO_EXCEPTION flag; a time reduction |
2313 |
|
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 |
2315 |
|
OpenBSD/cats). |
2316 |
|
|
2317 |
|
============== RELEASE 0.3.6.1 ============== |
2318 |
|
|
2319 |
|
20051012 Fixing the VGA cursor offset bug, and speeding up framebuffer |
2320 |
|
redraws if character cells contain the same thing as during |
2321 |
|
the last redraw. |
2322 |
|
20051013 Adding a slow strd ARM instruction hack. |
2323 |
|
20051017 Minor updates: Adding a dummy i80321 Verde controller (for |
2324 |
|
XScale emulation), fixing the disassembly of the ARM "ldrd" |
2325 |
|
instruction, adding "support" for less-than-4KB pages for ARM |
2326 |
|
(by not adding them to translation tables). |
2327 |
|
20051020 Continuing on some HPCarm stuff. A NetBSD/hpcarm kernel prints |
2328 |
|
some boot messages on an emulated Jornada 720. |
2329 |
|
Making dev_ram work better with dyntrans (speeds up some things |
2330 |
|
quite a bit). |
2331 |
|
20051021 Automatically generating some of the most common ARM load/store |
2332 |
|
multiple instructions. |
2333 |
|
20051022 Better statistics gathering for the ARM load/store multiple. |
2334 |
|
Various other dyntrans and device updates. |
2335 |
|
20051023 Various minor updates. |
2336 |
|
20051024 Continuing; minor device and dyntrans fine-tuning. Adding the |
2337 |
|
first "reasonable" instruction combination hacks for ARM (the |
2338 |
|
cores of NetBSD/cats' memset and memcpy). |
2339 |
|
20051025 Fixing a dyntrans-related bug in dev_vga. Also changing the |
2340 |
|
dyntrans low/high access notification to only be updated on |
2341 |
|
writes, not reads. Hopefully it will be enough. (dev_vga in |
2342 |
|
charcell mode now seems to work correctly with both reads and |
2343 |
|
writes.) |
2344 |
|
Experimenting with gathering dyntrans statistics (which parts |
2345 |
|
of emulated RAM that are actually executed), and adding |
2346 |
|
instruction combination hacks for cache cleaning and a part of |
2347 |
|
NetBSD's scanc() function. |
2348 |
|
20051026 Adding a bitmap for ARM emulation which indicates if a page is |
2349 |
|
(specifically) user accessible; loads and stores with the t- |
2350 |
|
flag set can now use the translation arrays, which results in |
2351 |
|
a measurable speedup. |
2352 |
|
20051027 Dyntrans updates; adding an extra bitmap array for 32-bit |
2353 |
|
emulation modes, speeding up the check whether a physical page |
2354 |
|
has any code translations or not (O(n) -> O(1)). Doing a |
2355 |
|
similar reduction of O(n) to O(1) by avoiding the scan through |
2356 |
|
the translation entries on a translation update (32-bit mode |
2357 |
|
only). |
2358 |
|
Various other minor hacks. |
2359 |
|
20051029 Quick release, without any testing at all. |
2360 |
|
|
2361 |
|
============== RELEASE 0.3.6.2 ============== |
2362 |
|
|
2363 |
|
20051031 Adding disassembly support for more ARM instructions (clz, |
2364 |
|
smul* etc), and adding a hack to support "new tiny" pages |
2365 |
|
for StrongARM. |
2366 |
|
20051101 Minor documentation updates (NetBSD 2.0.2 -> 2.1, and OpenBSD |
2367 |
|
3.7 -> 3.8, and lots of testing). |
2368 |
|
Changing from 1-sector PIO mode 0 transfers to 128-sector PIO |
2369 |
|
mode 3 (in dev_wdc). |
2370 |
|
Various minor ARM dyntrans updates (pc-relative loads from |
2371 |
|
within the same page as the instruction are now treated as |
2372 |
|
constant "mov"). |
2373 |
|
20051102 Re-enabling instruction combinations (they were accidentally |
2374 |
|
disabled). |
2375 |
|
Dyntrans TLB entries are now overwritten using a round-robin |
2376 |
|
scheme instead of randomly. This increases performance. |
2377 |
|
Fixing a typo in file.c (thanks to Chuan-Hua Chang for |
2378 |
|
noticing it). |
2379 |
|
Experimenting with adding ATAPI support to dev_wdc (to make |
2380 |
|
emulated *BSD detect cdroms as cdroms, not harddisks). |
2381 |
|
20051104 Various minor updates. |
2382 |
|
20051105 Continuing on the ATAPI emulation. Seems to work well enough |
2383 |
|
for a NetBSD/cats installation, but not OpenBSD/cats. |
2384 |
|
Various other updates. |
2385 |
|
20051106 Modifying the -Y command line option to allow scaleup with |
2386 |
|
certain graphic controllers (only dev_vga so far), not just |
2387 |
|
scaledown. |
2388 |
|
Some minor dyntrans cleanups. |
2389 |
|
20051107 Beginning a cleanup up the PCI subsystem (removing the |
2390 |
|
read_register hack, etc). |
2391 |
|
20051108 Continuing the cleanup; splitting up some pci devices into a |
2392 |
|
normal autodev device and some separate pci glue code. |
2393 |
|
20051109 Continuing on the PCI bus stuff; all old pci_*.c have been |
2394 |
|
incorporated into normal devices and/or rewritten as glue code |
2395 |
|
only, adding a dummy Intel 82371AB PIIX4 for Malta (not really |
2396 |
|
tested yet). |
2397 |
|
Minor pckbc fix so that Linux doesn't complain. |
2398 |
|
Working on the DEC 21143 NIC (ethernet mac rom stuff mostly). |
2399 |
|
Various other minor fixes. |
2400 |
|
20051110 Some more ARM dyntrans fine-tuning (e.g. some instruction |
2401 |
|
combinations (cmps followed by conditional branch within the |
2402 |
|
same page) and special cases for DPIs with regform when the |
2403 |
|
shifter isn't used). |
2404 |
|
20051111 ARM dyntrans updates: O(n)->O(1) for just-mark-as-non- |
2405 |
|
writable in the generic pc_to_pointers function, and some other |
2406 |
|
minor hacks. |
2407 |
|
Merging Cobalt and evbmips (Malta) ISA interrupt handling, |
2408 |
|
and some minor fixes to allow Linux to accept harddisk irqs. |
2409 |
|
20051112 Minor device updates (pckbc, dec21143, lpt, ...), most |
2410 |
|
importantly fixing the ALI M1543/M5229 so that harddisk irqs |
2411 |
|
work with Linux/CATS. |
2412 |
|
20051113 Some more generalizations of the PCI subsystem. |
2413 |
|
Finally took the time to add a hack for SCSI CDROM TOCs; this |
2414 |
|
enables OpenBSD to use partition 'a' (as needed by the OpenBSD |
2415 |
|
installer), and Windows NT's installer to get a bit further. |
2416 |
|
Also fixing dev_wdc to allow Linux to detect ATAPI CDROMs. |
2417 |
|
Continuing on the DEC 21143. |
2418 |
|
20051114 Minor ARM dyntrans tweaks; ARM cmps+branch optimization when |
2419 |
|
comparing with 0, and generalizing the xchg instr. comb. |
2420 |
|
Adding disassembly of ARM mrrc/mcrr and q{,d}{add,sub}. |
2421 |
|
20051115 Continuing on various PPC things (BATs, other address trans- |
2422 |
|
lation things, various loads/stores, BeBox emulation, etc.). |
2423 |
|
Beginning to work on PPC interrupt/exception support. |
2424 |
|
20051116 Factoring out some code which initializes legacy ISA devices |
2425 |
|
from those machines that use them (bus_isa). |
2426 |
|
Continuing on PPC interrupt/exception support. |
2427 |
|
20051117 Minor Malta fixes: RTC year offset = 80, disabling a speed hack |
2428 |
|
which caused NetBSD to detect a too fast cpu, and adding a new |
2429 |
|
hack to make Linux detect a faster cpu. |
2430 |
|
Continuing on the Artesyn PM/PPC emulation mode. |
2431 |
|
Adding an Algor emulation skeleton (P4032 and P5064); |
2432 |
|
implementing some of the basics. |
2433 |
|
Continuing on PPC emulation in general; usage of unimplemented |
2434 |
|
SPRs is now easier to track, continuing on memory/exception |
2435 |
|
related issues, etc. |
2436 |
|
20051118 More work on PPC emulation (tgpr0..3, exception handling, |
2437 |
|
memory stuff, syscalls, etc.). |
2438 |
|
20051119 Changing the ARM dyntrans code to mostly use cpu->pc, and not |
2439 |
|
necessarily use arm reg 15. Seems to work. |
2440 |
|
Various PPC updates; continuing on the PReP emulation mode. |
2441 |
|
20051120 Adding a workaround/hack to dev_mc146818 to allow NetBSD/prep |
2442 |
|
to detect the clock. |
2443 |
|
20051121 More cleanup of the PCI bus (memory and I/O bases, etc). |
2444 |
|
Continuing on various PPC things (decrementer and timebase, |
2445 |
|
WDCs on obio (on PReP) use irq 13, not 14/15). |
2446 |
|
20051122 Continuing on the CPC700 controller (interrupts etc) for PMPPC, |
2447 |
|
and on PPC stuff in general. |
2448 |
|
Finally! After some bug fixes to the virtual to physical addr |
2449 |
|
translation, NetBSD/{prep,pmppc} 2.1 reach userland and are |
2450 |
|
stable enough to be interacted with. |
2451 |
|
More PCI updates; reverse-endian device access for PowerPC etc. |
2452 |
|
20051123 Generalizing the IEEE floating point subsystem (moving it out |
2453 |
|
from src/cpus/cpu_mips_coproc.c into a new src/float_emul.c). |
2454 |
|
Input via slave xterms was sometimes not really working; fixing |
2455 |
|
this for ns16550, and a warning message is now displayed if |
2456 |
|
multiple non-xterm consoles are active. |
2457 |
|
Adding some PPC floating point support, etc. |
2458 |
|
Various interrupt related updates (dev_wdc, _ns16550, _8259, |
2459 |
|
and the isa32 common code in machine.c). |
2460 |
|
NetBSD/prep can now be installed! :-) (Well, with some manual |
2461 |
|
commands necessary before running sysinst.) Updating the |
2462 |
|
documentation and various other things to reflect this. |
2463 |
|
20051124 Various minor documentation updates. |
2464 |
|
Continuing the work on the DEC 21143 NIC. |
2465 |
|
20051125 LOTS of work on the 21143. Both OpenBSD and NetBSD work fine |
2466 |
|
with it now, except that OpenBSD sometimes gives a time-out |
2467 |
|
warning. |
2468 |
|
Minor documentation updates. |
2469 |
|
|
2470 |
|
============== RELEASE 0.3.7 ============== |
2471 |
|
|