Ah no, my bad, this is a horrible copy/paste error!
https://source.squeak.org/VMMaker/VMMaker.oscog-nice.2732.diff
Eliot, could you regenerate the VM/plugins?

Le mar. 24 mars 2020 à 00:31, Nicolas Cellier <
nicolas.cellier.aka.nice at gmail.com> a écrit :

> Hmm, it looks like I broke the signedBitShift: by omission (I did not
> update it, and it now calls updated bitShift:...)
>
> [minY > lastY and:[fwDy >= 0]] whileTrue:[
> lastX := lastX + ((fwDx + 16r8000) signedBitShift: -16).
> lastY := lastY + ((fwDy + 16r8000) signedBitShift: -16).
> fwDx := fwDx + (updateData at: GBUpdateDDX).
> fwDy := fwDy + (updateData at: GBUpdateDDY).
> ].
>
> ==>
>
> @@ -13423,8 +13423,8 @@ stepToNextBezier(void)
>         minY = (workBuffer[GWCurrentY]) * 256;
>         while ((minY > lastY)
>          && (fwDy >= 0)) {
> -               lastX += ((signed)(fwDx + 32768) >> 16);
> -               lastY += ((signed)(fwDy + 32768) >> 16);
> +               lastX += (((usqInt)((fwDx + 32768))) >> 16);
> +               lastY += (((usqInt)((fwDy + 32768))) >> 16);
>                 fwDx += updateData[GBUpdateDDX];
>                 fwDy += updateData[GBUpdateDDY];
>         }
>
>
> Le lun. 23 mars 2020 à 23:33, Nicolas Cellier <
> nicolas.cellier.aka.nice at gmail.com> a écrit :
>
>> Hi all,
>> I observe similar font problems on windows spur32 VM/image
>>
>> [image: image.png]
>>
>> Virtual Machine
>> ---------------
>> Open Smalltalk Cog[Spur] VM [CoInterpreterPrimitives
>> VMMaker.oscog-eem.2731]
>> Win32 built on Mar 23 2020 22:15:31 CET Compiler: 7.4.0
>> platform sources revision VM: 202003220256 Date: Sat Mar 21 19:56:35 2020
>> CommitHash: b85570231 Plugins: 202003220256
>> CoInterpreter VMMaker.oscog-eem.2731 uuid:
>> 3c8dda9e-4706-4c3d-8c58-a284c47f5705 Mar 23 2020
>> StackToRegisterMappingCogit VMMaker.oscog-eem.2731 uuid:
>> 3c8dda9e-4706-4c3d-8c58-a284c47f5705 Mar 23 2020
>>
>>
>> Le dim. 22 mars 2020 à 22:50, Eliot Miranda <eliot.miranda at gmail.com> a
>> écrit :
>>
>>> Hi Bruce,
>>>
>>>
>>> On Mar 22, 2020, at 8:31 AM, Bruce O'Neel <bruce.oneel at pckswarms.ch>
>>> wrote:
>>>
>>>
>>> Hi,
>>>
>>> Good news, playing with
>>>
>>> --enable-fast-bitblt
>>>
>>>
>>> and
>>>
>>> --disable-fast-bitblt
>>>
>>>
>>> does work in that it builds a working VM.
>>>
>>> Good news/bad news, it does not change the font problem.  So that's not
>>> the problem.
>>>
>>>
>>> Great news.  We now know it is an X11 problem and can stop worrying
>>> about the fast BitBLT code.  Thanks.
>>>
>>>
>>> cheers
>>>
>>> bruce
>>>
>>> *21 March 2020 01:07 tim Rowledge <tim at rowledge.org <tim at rowledge.org>>
>>> wrote:*
>>>
>>>
>>>
>>> > On 2020-03-20, at 6:16 AM, Bruce O'Neel wrote:
>>> >
>>> >
>>> > I specialize in ridiculous. Good news, I guess, is that I dug up a
>>> monitor, and, walked it downstairs with a keyboard and mouse and attached
>>> it. The effect with the BitstreamVeraSans and ComicSans fonts are the same.
>>> Maybe it likes serfed fonts?
>>>
>>> I'm completely baffled by this. I don't get this effect with any ARM vm
>>> that I have that actually runs, with any image I have.
>>>
>>> >
>>> > So that means that it is not some funky X11 over the wire problem with
>>> the Mac and Windows X11 servers problem. That's good.
>>>
>>> Guess so, though it just makes life weirder.
>>>
>>> >
>>> > I have no idea then why. Are these fonts part of the image? Is it some
>>> funky binary format that for some reason Coq is mis-reading?
>>>
>>> Yes, the font glyphs are in-image. We've been using these ones for
>>> goodness knows how many years.
>>>
>>> >
>>> > I built a stack VM and I get the same result with a Squeak 5.3 image.
>>>
>>> There*shouldn't* be any difference between the stack & cog vms.
>>>
>>> You could try building a VM with the fastbitblt turned off I suppose -
>>> a quick hack is to find the BITBLT_FLAGS= -DENABLE_FAST_BLT and related
>>> lines in the Makefile in you squeak.cog.spur/build directory. I haven't
>>> actually built an ARM vm without that in years so I don't know it it even
>>> still works.
>>>
>>>
>>> tim
>>> --
>>> tim Rowledge; tim at rowledge.org; http://www.rowledge.org/tim
>>> It is easier to change the specification to fit the program than vice
>>> versa.
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
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