bonzini

27 ms·

451.
by bonzini 2y ago
2 GB for the author's package which is neither extremely common nor large; it would be 2 TB/year just for react core.
452.
by bonzini 2y ago
Indeed, wrapping around the end of VRAM is another thing that I had to fix in QEMU[1]. :) > So the scrolling was documented, but perhaps not well enough. That's certainly possible - 10% inspiration and 90% perspiration, as they sa
453.
by bonzini 2y ago
I am not aware of any other game using the variant with odd/even mode, nor of any documentation of how the blitting worked. Maybe someone should ask Arjan about the source code that he mentioned on stackexchange. :)
454.
by bonzini 2y ago
No, it's not. Keen 1 was a 16 color game; 16 color games pack 8 pixels in a byte and spread the color information across 4 planes. Accessing the different planes requires programming the video card's registers and there isn't
455.
by bonzini 2y ago
Jazz Jackrabbit employs some really unique VGA programming to do fast blitting. Relatively many people are familiar with linear mode (64K of usable memory, fast blitting but no double buffering) and mode X (256K memory, complicated or slow
456.
by bonzini 2y ago
Author of "All you need to know about KVM userspace" here! I am happy that you liked it. Some things have changed since then, some have not... Red Hat is now shipping Kata Containers, which does not (much to my dismay) use Libvirt
457.
by bonzini 2y ago
But what about fundamentalist Christians? Watching from Europe I have a hard time picking the more fundamentalist country between the south of the US and the Vatican.
458.
by bonzini 2y ago
The article removes all the smart features (not just the annoying ones) and requires pretty serious knowledge of analog electronics. Probably it doesn't fit the bill for the parent comment.
459.
by bonzini 2y ago
A lot of levels in the conversions were created specifically and are not in the arcade version. An Italian programmer, Aladar, did a comprehensive reverse engineering of the Bubble Bobble arcade code in order to port the best 100 of those l
460.
Bubble Bobble Lost Cave(gamesdb.launchbox-app.com)
1 points by bonzini 2y ago|1 comments
461.
by bonzini 2y ago
The Great Giana Sisters was a legitimate game though—while the gameplay was obviously almost identical to Super Mario Bros, code wise it was technically very advanced as far as C64 games went. The way you phrased it seems like it was a boot
462.
by bonzini 2y ago
The sum of the first n cubes is always the square of the sum of numbers from 1 to n. For example 1³+2³+3³+4³=(1+2+3+4)². You can prove it by induction; just expand (n(n+1)/2)² – (n(n-1)/2)², the result is n³.
463.
by bonzini 2y ago
4 and 5 too
464.
by bonzini 2y ago
Probably to do multiplies, as the extra add is basically free. Adds are cheaper.
465.
by bonzini 2y ago
Sievert is more of a "newtype" in Rust/Haskell terminology than a separate unit. Likewise for radians and moles.
466.
by bonzini 2y ago
Is the former different from a hypothetical Result::Err type (I don't know if you'd spell that Result::Err<T> or Result::<T>::Err)?
467.
by bonzini 2y ago
Interesting. Yeah, being able to use Arm flags always is probably a big thing, since they even added hardware support for that. It's a huge achievement for a single person to have written most of that.
468.
by bonzini 2y ago
QEMU loses a bit from being a generic translator instead of being specialized for x86->ARM like Rosetta 2, Box64 or FEXEmu. It does a lot of spilling for example even though x86 has a lot fewer registers than aarch64. Flags are also tric
469.
by bonzini 2y ago
> unsafe Rust can be harder than writing C in some ways due to having to uphold certain invariants that don't come up in C. Yes, this is absolutely correct and on top of this you sometimes have to employ tricks to make the compiler
470.
by bonzini 2y ago
But is it even a second company (and thus a license transfer) if Qualcomm bought Nuvia?
471.
by bonzini 2y ago
They bought WhatsApp to keep businesses on Facebook and to prevent it from being an actual "everything app", though in the end they started offering WhatsApp Business anyway. A lot of this became public from FTC vs Meta: https:&#
472.
by bonzini 2y ago
Would it be like a Savannah cat ( https://en.wikipedia.org/wiki/Savannah_cat )?
473.
by bonzini 2y ago
The point is that females have 46 full chromosomes and males don't. If you take into account that one of the 46 is essentially inactivated in females, that's obviously another story; but as far as nucleotides go, the genetic diffe
474.
by bonzini 2y ago
Many of them are paid by the number of records, you basically cannot do many to many relationships.
475.
by bonzini 2y ago
The bots are tuned differently to be a bit more tactical or more positional, and they have an opening book that follows the preference of the chosen player.
476.
by bonzini 2y ago
This is wrong. If you do p=malloc(256), p+256 is valid even though it does not point to a valid address (it might be in an unmapped page; check out ElectricFence). Rust's non-null aligned other pointer is the same, memcpy can't as
477.
by bonzini 2y ago
Rep movsb copies 64K if CX=0 (that's actually very useful), but memcpy could be implemented as two instructions: jcxz skip rep movsb skip:
478.
by bonzini 2y ago
On s390 the memory at address 0 (low core) has all sorts of important stuff. Of course s390 has paging enabled pretty much always but still...
479.
by bonzini 2y ago
In real mode assembly days, ES and sometimes DS were just another base register that you could use in a loop. Given the dearth of addressing modes it was quite nice to assume that large arrays started at xxxx0h and therefore that the offset
480.
by bonzini 2y ago
The compiler is free to give a meaning to memcpy if run in the (default) hosted mode. There's -ffreestanding for freestanding environments.

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