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20070918
++ 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.
++ 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 ==============
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