Vm-dev March 2010

vm-dev@lists.squeakfoundation.org

33 participants
62 discussions

Squeak Win32 VM update (3.11.8)
by Andreas Raab 11 Mar '10

11 Mar '10

Folks - I've updated the Windows VM to 3.11.8. This is purely a maintenance update with a few fixes, including: * Updated VMMaker which makes BitBltTests pass * Fixes an issue with incorrect clipboard handling * Handles certain errors more gracefully Unless you specifically care about any of the of the above it's perfectly safe to stay with your current 3.11.x VMs for the time being. As usual, binaries and source are available at http://squeakvm.org/win32/release/SqueakVM-Win32-3.11.8-bin.zip http://squeakvm.org/win32/release/SqueakVM-Win32-3.11.8-src.zip Cheers, - Andreas

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CCodeGenerator>>emitCHeaderOn:
by Andreas Raab 11 Mar '10

11 Mar '10

Hi - I'd like to propose to REMOVE the inline definition of void error(char*) from CCodeGenerator>>emitCHeaderOn:. Rationale: Allow the support code to handle fatal errors and provide proper feedback. Currently a fatal error will cause the VM to silently quit instead of telling the user that a fatal error happened. It also prevents gathering additional information that the VM could other provide (such as the crash.dmp on Windows). Anyone opposed to that change? Cheers, - Andreas

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[commit] r2153 - - Better handling of fatal errors.
by commits＠squeakvm.org 11 Mar '10

11 Mar '10

Author: andreas Date: 2010-03-10 23:15:34 -0800 (Wed, 10 Mar 2010) New Revision: 2153 Modified: trunk/platforms/win32/vm/sqPlatformSpecific.h trunk/platforms/win32/vm/sqWin32.h trunk/platforms/win32/vm/sqWin32Intel.c trunk/platforms/win32/vm/sqWin32Prefs.c Log: - Better handling of fatal errors. - Make VM version a Makefile property Modified: trunk/platforms/win32/vm/sqPlatformSpecific.h =================================================================== --- trunk/platforms/win32/vm/sqPlatformSpecific.h 2010-03-10 19:22:45 UTC (rev 2152) +++ trunk/platforms/win32/vm/sqPlatformSpecific.h 2010-03-11 07:15:34 UTC (rev 2153) @@ -21,6 +21,9 @@ #define squeakFileOffsetType unsigned long long #endif +#undef error +#define error(str) ioFatalError(str) + #ifdef WIN32_FILE_SUPPORT #undef sqImageFile Modified: trunk/platforms/win32/vm/sqWin32.h =================================================================== --- trunk/platforms/win32/vm/sqWin32.h 2010-03-10 19:22:45 UTC (rev 2152) +++ trunk/platforms/win32/vm/sqWin32.h 2010-03-11 07:15:34 UTC (rev 2153) @@ -241,9 +241,16 @@ #define VERSION "" #endif -#define VM_VERSION TEXT("Squeak 3.11.5 (beta) from ") TEXT(__DATE__) \ - TEXT("\n") TEXT("Compiler: ") TEXT(COMPILER) TEXT(VERSION) +/* Ensure that VM_VERSION (3.11.5 etc) is defined */ +#ifndef VM_VERSION +#error "VM_VERSION is undefined" +#endif +#ifndef VM_NAME +#error "VM_NAME is undefined" +#endif +#define VM_VERSION_INFO TEXT(VM_NAME) TEXT(VM_VERSION) TEXT(" from ") TEXT(__DATE__) \ + /********************************************************/ /* image reversal functions */ /********************************************************/ Modified: trunk/platforms/win32/vm/sqWin32Intel.c =================================================================== --- trunk/platforms/win32/vm/sqWin32Intel.c 2010-03-10 19:22:45 UTC (rev 2152) +++ trunk/platforms/win32/vm/sqWin32Intel.c 2010-03-11 07:15:34 UTC (rev 2153) @@ -697,6 +697,86 @@ /* Release */ /****************************************************************************/ +void +printCommonCrashDumpInfo(FILE *f) { + + fprintf(f,"\n\n%s", hwInfoString); + fprintf(f,"\n%s", osInfoString); + fprintf(f,"\n%s", gdInfoString); + + /* print VM version information */ + fprintf(f,"\nVM Version: %s\n", VM_VERSION_INFO); + fflush(f); + fprintf(f,"\n" + "Current byte code: %d\n" + "Primitive index: %d\n", + getCurrentBytecode(), + methodPrimitiveIndex()); + fflush(f); + /* print loaded plugins */ + fprintf(f,"\nLoaded plugins:\n"); + { + int index = 1; + char *pluginName; + while( (pluginName = ioListLoadedModule(index)) != NULL) { + fprintf(f,"\t%s\n", pluginName); + fflush(f); + index++; + } + } + /* print the caller's stack to "crash.dmp" */ + fprintf(f,"\nThe Smalltalk Stack:\n"); + { + FILE tmpStdout; + tmpStdout = *stdout; + *stdout = *f; + printCallStack(); + *f = *stdout; + *stdout = tmpStdout; + fprintf(f,"\n"); + } +} + +void +error(char *msg) { + FILE *f; + TCHAR crashInfo[1024]; + + wsprintf(crashInfo, + TEXT("Sorry but the VM has crashed.\n\n") + TEXT("Reason: %s\n\n") + TEXT("Current byte code: %d\n") + TEXT("Primitive index: %d\n\n") + TEXT("This information will be stored in the file\n") + TEXT("%s\\%s\n") + TEXT("with a complete stack dump"), + msg, + getCurrentBytecode(), + methodPrimitiveIndex(), + vmPath, + TEXT("crash.dmp")); + if(!fHeadlessImage) + MessageBox(stWindow,crashInfo,TEXT("Fatal VM error"), + MB_OK | MB_APPLMODAL | MB_ICONSTOP); + + SetCurrentDirectory(vmPath); + /* print the above information */ + f = fopen("crash.dmp","a"); + if(f){ + time_t crashTime = time(NULL); + fprintf(f,"---------------------------------------------------------------------\n"); + fprintf(f,"%s\n\n", ctime(&crashTime)); + + fprintf(f,"Reason: %s\n", msg); + printCommonCrashDumpInfo(f); + fclose(f); + } + /* print the caller's stack to stdout */ + printCallStack(); + exit(-1); +} + + void printCrashDebugInformation(LPEXCEPTION_POINTERS exp) { TCHAR crashInfo[1024]; FILE *f; @@ -731,7 +811,7 @@ vmPath, TEXT("crash.dmp")); if(!fHeadlessImage) - MessageBox(0,crashInfo,TEXT("Fatal VM error"), + MessageBox(stWindow,crashInfo,TEXT("Fatal VM error"), MB_OK | MB_APPLMODAL | MB_ICONSTOP); SetCurrentDirectory(vmPath); @@ -769,46 +849,12 @@ exp->ContextRecord->FloatSave.StatusWord, exp->ContextRecord->FloatSave.TagWord); - fprintf(f,"\n%s", hwInfoString); - fprintf(f,"\n%s", osInfoString); - fprintf(f,"\n%s", gdInfoString); + printCommonCrashDumpInfo(f); + fclose(f); - /* print VM version information */ - fprintf(f,"\nVM Version: %s\n", VM_VERSION); - fflush(f); - fprintf(f,"\n" - "Current byte code: %d\n" - "Primitive index: %d\n", - byteCode, - methodPrimitiveIndex()); - fflush(f); - /* print loaded plugins */ - fprintf(f,"\nLoaded plugins:\n"); - { - int index = 1; - char *pluginName; - while( (pluginName = ioListLoadedModule(index)) != NULL) { - fprintf(f,"\t%s\n", pluginName); - fflush(f); - index++; - } - } - fprintf(f, "\n\nStack dump:\n\n"); + /* print the caller's stack twice (to stdout and "crash.dmp")*/ + printCallStack(); } - fflush(f); - - /* print the caller's stack twice (to stdout and "crash.dmp")*/ - { - FILE tmpStdout; - tmpStdout = *stdout; - *stdout = *f; - printCallStack(); - *f = *stdout; - *stdout = tmpStdout; - fprintf(f,"\n"); - fclose(f); - } - } EXCEPT(EXCEPTION_EXECUTE_HANDLER) { /* that's to bad ... */ if(!fHeadlessImage) @@ -819,42 +865,11 @@ } } -void printErrors() -{ TCHAR *errorMsg; - fpos_t stdoutSize,stderrSize; - - if(*stdoutName) - { - fgetpos(stdout,&stdoutSize); - fseek(stdout,0,SEEK_SET); - } - else stdoutSize = 0; - - if(*stderrName) - { - fgetpos(stderr,&stderrSize); - fseek(stderr,0,SEEK_SET); - } - else stderrSize = 0; - - if(stdoutSize <= 0 && stderrSize <= 0) return; - errorMsg = (char*) calloc((int)(stdoutSize+stderrSize+2),1); - fread(errorMsg,(int)stdoutSize,1,stdout); - errorMsg[stdoutSize] = '\n'; - fread(&errorMsg[(int)(stdoutSize+1)],(int)stderrSize,1,stderr); - if(!fHeadlessImage) - MessageBox(0,errorMsg,TEXT("Error:"),MB_OK); - free(errorMsg); -} - extern int inCleanExit; void __cdecl Cleanup(void) { /* not all of these are essential, but they're polite... */ - if(!inCleanExit) { - printCallStack(); - } ioShutdownAllModules(); #ifndef NO_PLUGIN_SUPPORT pluginExit(); @@ -868,8 +883,6 @@ PROFILE_SHOW(ticksForReversal); PROFILE_SHOW(ticksForBlitting); /* Show errors only if not in a browser */ - if(!browserWindow) - printErrors(); if(*stderrName) { fclose(stderr); Modified: trunk/platforms/win32/vm/sqWin32Prefs.c =================================================================== --- trunk/platforms/win32/vm/sqWin32Prefs.c 2010-03-10 19:22:45 UTC (rev 2152) +++ trunk/platforms/win32/vm/sqWin32Prefs.c 2010-03-11 07:15:34 UTC (rev 2153) @@ -348,7 +348,7 @@ void HandlePrefsMenu(int cmd) { switch(cmd) { case ID_ABOUT: - MessageBox(stWindow,VM_VERSION, + MessageBox(stWindow,VM_VERSION_INFO, TEXT("About " VM_NAME " on Win32"), MB_OK); break; case ID_DEFERUPDATES:

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[Squeak 4.0] (RC2) Mac VM Issue: Punted
by Casey Ransberger 11 Mar '10

11 Mar '10

The Mac VM I'm currently packaging with 4.0 is the same one that was packaged with 3.10.2. It's old, stable, and closureless. Going to squeak.org and clicking download, I now get the experimental 32/64 bit VM that John built, and folks told me to beware of that, so I'm calling this issue a non-blocking nice-to-have. We'll ship the OS X zip file with the old VM in RC2. If there's an RC3, I'll consider dropping a different VM in if there's consensus around which one to use. Rationale: - It's not hard to find a newer VM - Clearing changesets and image cleanup may affect the relicense effort and are thus presently of top priority - The person doing the closure bootstrap (which is a very involved process as I understand it) will probably know which VM to choose - 4.0 is virtually the same as 3.10.2, and is thus better tested with the latest *stable* virtual machine - The VM doesn't block relicensing -- Casey Ransberger (a.k.a., Ronald Spengler)

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Re: [squeak-dev] Low Space Warning
by Eliot Miranda 10 Mar '10

10 Mar '10

On Wed, Mar 10, 2010 at 6:39 AM, Jon Hylands <jon(a)huv.com> wrote: > On Fri, 19 Feb 2010 16:25:20 -0500, Jon Hylands <jon(a)huv.com> wrote: > > >I'm getting a weird problem, and its been so many years since I saw > >this, I'm at a loss as to what to do... > > > >On my robot Brainbot, I have a 2.83 GHz Core 2 Quad with 2 GB RAM and > >a 32 GB solid state HD. It is running Windows XP Pro. > > > >I'm getting a Low Space Notifier whenever I try and copy text to the > >clipboard, or when I try and paste. I can do other development things, > >writing a saving code, and opening browsers and windows with no > >problems. > > > >Task Manager says Squeak is taking up 37,980 K, and the machine has > >1.2 GB of free physical memory. > > > >I'm running the following VM: > > > >Squeak 3.10.6 (release) from Aug 30 2007 > > > >And the following image: > > > >Squeak 3.10.2 > >latest update: #7179 > > Okay, so this is still bothering me, and I dug a little deeper, and > came across something that blew me away... > > http://www.huv.com/Clipboard-OutOfMemory.png > > Basically, when I do 'copy', the primitive returns a ByteString that > is 4 billion bytes long -- 2^32 - 1 to be exact. Clearly that is not > really allocated, because even when I have this inspector open, Squeak > is still only taking about 37 MB of memory. > > However, the method String >> #withSqueakLineEndings is trying to > create a new string that is 4 billion bytes long, and that is where I > run into the low space warning. > > Primitive 141 appears to be causing the issue. > The primitive looks like this in my quite possibly obsolete VM sources: primitiveClipboardText "When called with a single string argument, post the string to the clipboard. When called with zero arguments, return a string containing the current clipboard contents." | s sz | argumentCount = 1 ifTrue: [s := self stackTop. (self isBytes: s) ifFalse: [^ self primitiveFail]. self successful ifTrue: [sz := self stSizeOf: s. self clipboardWrite: sz From: s + BaseHeaderSize At: 0. self pop: 1]] ifFalse: [sz := self clipboardSize. (self sufficientSpaceToAllocate: sz) ifFalse:[^self primitiveFail]. s := self instantiateClass: (self splObj: ClassString) indexableSize: sz. self clipboardRead: sz Into: s + BaseHeaderSize At: 0. self pop: 1 thenPush: s] I'm willing to bet that clipboardSize is returning -1. It probably needs to read something like primitiveClipboardText "When called with a single string argument, post the string to the clipboard. When called with zero arguments, return a string containing the current clipboard contents." | s sz | argumentCount = 1 ifTrue: [s := self stackTop. (self isBytes: s) ifFalse: [^ self primitiveFail]. self successful ifTrue: [sz := self stSizeOf: s. self clipboardWrite: sz From: s + BaseHeaderSize At: 0. self pop: 1]] ifFalse: [sz := self clipboardSize. >> (sz >= 0 and: [self sufficientSpaceToAllocate: sz]) ifFalse:[^self primitiveFail]. s := self instantiateClass: (self splObj: ClassString) indexableSize: sz. self clipboardRead: sz Into: s + BaseHeaderSize At: 0. self pop: 1 thenPush: s] > > I'm not much of a VM person, so hopefully someone who is can look at > that primitive and figure out what case is causing it. > > One more thing to note - I'm running Windows in a Remote Desktop, from > a Linux machine. To clarify, my development machine is a desktop, > running Ubuntu linux. The robot is a mini-itx running Windows XP Pro. > I use remote desktop from linux to access the Windows GUI on the > robot. > The Windows VM's clipboardText function is a tad unsafe: int clipboardSize(void) { HANDLE h; WCHAR *src; unsigned char *tmp; int i, count, bytesNeeded; /* Do we have text in the clipboard? */ if(!IsClipboardFormatAvailable(CF_UNICODETEXT)) return 0; if(!OpenClipboard(stWindow)) return 0; /* Get it in unicode format. */ h = GetClipboardData(CF_UNICODETEXT); src = GlobalLock(h); /* How many bytes do we need to store those unicode chars in UTF8 format? */ bytesNeeded = WideCharToMultiByte(CP_UTF8, 0, src, -1, NULL, 0, NULL, NULL ); tmp = malloc(bytesNeeded+1); /* Convert Unicode text to UTF8. */ WideCharToMultiByte(CP_UTF8, 0, src, -1, tmp, bytesNeeded , NULL, NULL); /* Count CrLfs for which we remove the extra Lf */ count = bytesNeeded; /* ex. terminating zero */ for(i=0; i<count; i++) { if((tmp[i] == 13) && (tmp[i+1] == 10)) bytesNeeded--; } bytesNeeded--; /* discount terminating zero */ free(tmp); /* no longer needed */ GlobalUnlock(h); CloseClipboard(); return bytesNeeded; } If bytesNeeded is zero then the function will return (int)-1. >From the MS manual page: Return Value Returns the number of bytes written to the buffer pointed to by * lpMultiByteStr* if successful. If the function succeeds and *cbMultiByte* is 0, the return value is the required size, in bytes, for the buffer indicated by *lpMultiByteStr*. The function returns 0 if it does not succeed. To get extended error information, the application can call *GetLastError*, which can return one of the following error codes: - ERROR_INSUFFICIENT_BUFFER. A supplied buffer size was not large enough, or it was incorrectly set to NULL. - ERROR_INVALID_FLAGS. The values supplied for flags were not valid. - ERROR_INVALID_PARAMETER. Any of the parameter values was invalid. - ERROR_NO_UNICODE_TRANSLATION. Invalid Unicode was found in a string. So something like /* How many bytes do we need to store those unicode chars in UTF8 format? */ bytesNeeded = WideCharToMultiByte(CP_UTF8, 0, src, -1, NULL, 0, NULL, NULL ); if (bytesNeeded <= 0) return 0; would be wise. > > Later, > Jon > > >

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Alien on Win32 - Test and Integration into VM Sources
by Torsten Bergmann 09 Mar '10

09 Mar '10

Cool! With Alien working on Win32 we now have it on all major platforms (windows, linux, mac) I send this mail CC to the squeak-dev/pharo-dev list so others are able to try the plugin on Win32 and give feedback. This mail also goes to vm-dev list and I hope one of the vm-maintainers (Andreas, Elliot, David? - also in CC:) are able to respond to you directly on how to integrate your changes into the offical win32 vm sources. Thx Torsten -------- Original-Nachricht -------- Datum: Tue, 9 Mar 2010 09:47:45 +0100 Von: "Schmidt, Marco" <Marco.Schmidt AT eads.com> An: "Torsten Bergmann" <astares AT gmx.de> CC: ml-node+104410-17186360-21457(a)n4.nabble.com Betreff: AW: Test Alien on Win32... I added a zip file with the exe and the needed dlls to the bug 1360 (http://code.google.com/p/pharo/issues/detail?id=1360). I tested in the last days CairoGraphics and my own CurlLibrary binding - success! I have working callbacks for Curl too. I cloned the svn repo into a git repo. What is the correct format to submit patches to the developers? Marco -- Sicherer, schneller und einfacher. Die aktuellen Internet-Browser - jetzt kostenlos herunterladen! http://portal.gmx.net/de/go/atbrowser

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Gnuification fails when compiling unix VM with latest VMMaker source
by Adrian Lienhard 09 Mar '10

09 Mar '10

Hi all, I'm trying to build a unix VM (on OSX) with the latest trunk (r2148) and the latest VMMaker version (VMMaker-dtl.156) but apparently the gnuification fails: [ 80%] Building C object CMakeFiles/squeakvm.dir/gnu-interp.c.o /Users/adrian/Desktop/vmbuilding/platforms/build/gnu-interp.c:6:2: error: #error GNUIFICATION FAILED ( 0 ) make[2]: *** [CMakeFiles/squeakvm.dir/gnu-interp.c.o] Error 1 make[1]: *** [CMakeFiles/squeakvm.dir/all] Error 2 make: *** [all] Error 2 When compiling with r2135, in which no gnuification is done, it works. From the above error output I have no clue as to what went wrong. To narrow down the problem I went to http://www.squeakvm.org/unix/ and downloaded the VMMaker image that Ian uses for the unix builds. I can compile with the cmake configuration of r2148 and the source that this VMM produces. So I assume there is a source change in VMMaker-dtl.156 that is not compatible with gnuification. The only question is, which one? The VMM version found in this image is VMMaker-tpr.58 (this version is many years old!) with lots of uncommitted changes. Diffing against VMMaker-dtl.156 I get tons of changed methods so I'm kind of lost here too. Why is the maintained VMMaker package not used for unix VMs? The following benchmarks show that gnuification makes a significant difference (MacBook Pro with 2.4Ghz, i686-apple-darwin10-gcc-4.2.1): 1 pre-compiled 3.11.3.2135 VM [1]: '248543689 bytecodes/sec; 8117987 sends/sec' 2 compiled from source r2135 '411244979 bytecodes/sec; 10560900 sends/sec' 3 VMMaker-dtl.156 compiled with cmake r2135: '313533374 bytecodes/sec; 11534330 sends/sec' 4 compiled from source r2148 '487619047 bytecodes/sec; 13257851 sends/sec' 5 provided VMMaker image [2] with r2148 '493256262 bytecodes/sec; 13200950 sends/sec' 6 VMMaker-dtl.156 compiled with r2148 ??? cannot compile... [1] http://www.squeakvm.org/unix/release/Squeak-3.11.3.2135-src.tar.gz [2] http://www.squeakvm.org/unix/release/unix-3.11.3.2135-vmm.tar.gz 1, 2, and 3 are compiled with the configuration of cmake from trunk revision 2135, hence without gnuification. 4 and 5 probably are from identical source: 4 from the svn trunk, the other, 5, generated through the VMM image provided by Ian. Any help to make 6 work is very welcome! Cheers, Adrian

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My gotchas, when building win32 vm
by Igor Stasenko 08 Mar '10

08 Mar '10

Hello, If you read the squeak-dev, i decided to build VM from the latest sources available. After few problems caused by changes in the trunk image, i finally was able to load VMMaker and started building. I followed instructions precisely (found in platforms/win32/docs): - copied contents of plaftorms/win32/build into <my own dir> - set VMMaker output path to <my own dir>/src - run from command line: cd <my own dir> make Here, the problems i ran into: - OSProcess plugin for win32, seems like paths is not set correctly. gcc -o ../.././obj/Win32OSProcessPlugin/Win32OSProcessPlugin.o -g -mpentium -mwindows -fomit-frame-pointer -funroll-loops -fschedule-insns2 -O2 -I. -Ic:/dx7sdk/include -I../.././src/vm -I../../../platforms/Win32/vm -I../../../platforms/Cross/vm -I../.././src/Win32OSProcessPlugin -I../../../platforms/Win32/plugins/Win32OSProcessPlugin -I../../../platforms/Cross/plugins/Win32OSProcessPlugin -DWIN32_FILE_SUPPORT -DNO_SERVICE -DNO_STD_FILE_SUPPORT -DNDEBUG -DLSB_FIRST -DVM_NAME=\"\" -DX86 -DSQUEAK_BUILTIN_PLUGIN -c ../.././src/Win32OSProcessPlugin/Win32OSProcessPlugin.c ../.././src/Win32OSProcessPlugin/Win32OSProcessPlugin.c:39: FilePlugin.h: No such file or directory ../.././src/Win32OSProcessPlugin/Win32OSProcessPlugin.c:40: SocketPlugin.h: No such file or directory (i excluded it from build) then, while linking: - FT2Plugin (internal): many undefined references to freetype library symbols - FT2Plugin (external): had to clean up a previously built .obj files which left from my attempt of building internal plugin, in order to build .dll correctly - QuicktimePlugin(internal): undefined references to stQuicktimeXXXXX symbols. (I remember that i had never ever got chances to make it working on my win32 build. So i just excluded it from build). Finally i having the built VM and two dlls: for FFI and freetype. :) -- Best regards, Igor Stasenko AKA sig.

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Re: [squeak-dev] MIDI plugin [was: Google Summer Of Code 2010 news!!!]
by David T. Lewis 07 Mar '10

07 Mar '10

(cc to vm-dev list) On Sun, Mar 07, 2010 at 06:22:38PM +0100, St?phane Rollandin wrote: > > still, my question remains: can we at the moment have a MIDI support in > linux ? like, just be able to use SimpleMIDIPort ? > > AFAIK this has been missing for years. Stef, I don't know the status of MIDIPlugin support on Linux but I can tell you that the plugin does compile, and I think that it is distributed as a builtin plugin in Ian's latest VM at http://squeakvm.org/unix/. I'm afraid that I know very little about MIDI, and I don't have any actual MIDI devices to test on (*), but if you (or someone else) are in a position to do the testing, perhaps we can collaborate to get it working. I think that this plugin was done originally for Windows, so it might be necessary to do some work mapping it properly to device names on Linux. We did something like this recently for the SerialPlugin to make it work with USB serial devices, and I'm sure it would be possible to do something similar for MIDI if that is the issue. Dave (*) Actually maybe I do have such a device, I'll have to go read the manual and see if I can figure out what it does.

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localIP, instructionPointer, currentBytecode data size
by Ang BeePeng 02 Mar '10

02 Mar '10

Hi. In win32 Squeak VM, I saw localIP as char* while instructionPointer is type sqInt. Why is it so? Also, currentBytecode is type sqInt, why is it not store as a byte? What is the difference between localIP and instructionPointer? Thanks. Ang Beepeng -- View this message in context: http://n4.nabble.com/localIP-instructionPointer-currentBytecode-data-size-t… Sent from the Squeak - VM mailing list archive at Nabble.com.

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Vm-dev March 2010