Myria

Why is the user interface of #CocaCola Freestyle machines so dang slow? It takes 5 seconds to go from tapping something on the screen to being able to dispense the drink. It’s a problem when there are people waiting in line.

@ObsoleteSony “Private key leaked”

Say something nice about the PS3

@obitadasiiuma22 @favoga_ In North America, our box had a more typical back side. That might be because in North America in 1997, RPGs were a niche rather than widely popular. Final Fantasy 7 changed that.

@favoga_ パッケージの裏って普通は「こんなゲームです」ってのが書いてありますよね そんな中でコレで出したんですよ 発売前からみんな「すげぇ！」ってなってたんです

当時リアルタイムでプレイしてた人に聞きたい。FFⅦって発売当初からすげぇぇてなってたの？

After much reflection, I have decided to resign from my position as Director of the National Counterterrorism Center, effective today. I cannot in good conscience support the ongoing war in Iran. Iran posed no imminent threat to our nation, and it is clear that we started this war due to pressure from Israel and its powerful American lobby. It has been an honor serving under @POTUS and @DNIGabbard and leading the professionals at NCTC. May God bless America.

It’s rather ironic that merely the order of variables in a microcontroller program is the only reason that you can’t burn a CD-R that’ll work in an unmodified PlayStation 1. Otherwise, you could use a corrupted table of contents to cause a memory stomp that bypasses security.

The drive issue might just be calibration, but I have no idea. Dumping the midnight blue Mechacon would involve carefully lifting one of its pins and soldering a few wires to do the dump, then putting them back.

The rarest one is a midnight blue region-free PS1, “SCPH-7000W”. Seems mostly the same as a normal SCPH-700x. Differences are 100V-240V compatible power supply board, BIOS seems to be a one-off of an American BIOS, and the Mechacon firmware is region-free.

I want to get two rare PlayStation 1 models repaired (drive issues) and have one of their Mechacon chips dumped for preservation and understanding. I don’t have the hardware skills for this. Are there places to hire to do things like this?

@Console_Hax @falco_girgis I’ve never used =m on an array like that to get GCC to recognize that my assembly code wrote that area but no others. It does seem weird. I’d declare a 32-byte struct with a [[gnu::may_alias]] instead. By the way, the clobber list needs “cc” because of that add instruction.

@falco_girgis @Myriachan maybe you know?

Okay goddamnit, we just ran into one of the most obscure and elusive bugs I've ever encountered working on our Ocarina of Time port for the Sega Dreamcast. It reared its ugly head while we were balls deep in the inline SH4 assembly, optimizing the game for DC... and I seriously CANNOT explain why the offending code caused an issue, even if we found a way to work around it... Are there any inline assembly or GCC compiler experts in the house? I know how obscure this shit is, but... hopefully there's someone I'm connected with who is well-versed in the dark arts... if so, have a seat and let me weave you a tale... What's the deal? Well, we're using my SH4 vector and math library, SH4ZAM, to accelerate a bunch of the math and hot routines in this port, going from N64 to DC, to improve performance, as we always do. What we have here is two slightly different versions of the exact same hand-optimized memcpy() variant routine, with the bare minimum code present for the routine to work and to reproduce the issue. It copies exactly 16 4-byte words from a source address to a destination address. We use this version ONLY to copy unaligned 4x4 matrices around in memory (cuz we can do much better with higher aligned matrices). ANYWAY. The one on the left? The working version of the code. Does its thing. Life is good. The one on the right? The original implementation... NOT A DAMN THING WRONG... except... owait, where's the minimap icons!? TOAST. The only difference between the two? The types of the pointers which we are using as input and output constraints to the same block of inline assembly. Since the two argument pointers are void*, we must cast them to something to give them a size as memory constraints for the inline ASM block. On the left, they are casted to 64-element byte array, which is legally allowed to alias any memory based on C/C++'s "strict aliasing" rules. On the right? We're using a pointer to a special typedef'd uint32_t which tells GCC that we're allowed to alias memory and break GCC's strict aliasing rules by referencing memory from such a pointer. So the constraints on the right take pointers to an array of 16 32-bit words which are allowed to be aliased as uint32_ts... I have searched everywhere I possibly could and cannot see any reason these two should not behave identically. Yeah, I'm breaking strict aliasing rules on the right, but so? That GCC aliasing attribute does properly get GCC to fuck off and allow me to carry on violating those rules perfectly fine from C and C++ code... so what's the problem here? Only thing I can even think of is that GCC's extended inline assembly blocks are not honoring the "may_alias" attribute on the typedef that we're using to refer to our source and destination memory addresses, and the whole block of inline ASM is getting optimized away for breaking strict aliasing rules when we pass a 4x4 float matrix to it? Anyone know if this is the case? Is that even documented anywhere? Anyway, this is the latest and greatest GCC version 15.2.1 toolchain, cross-compiling for the Sega Dreamcast's "SuperH4" CPU architecture. Yes, we are rocking -O3, -flto, -fipa-pta, and pretty much every optimization under the sun which is interacting with these blocks of inline ASM, further adding to the shitstorm... THOUGHTS? 😂

@notnotzecoxao Bug in hypervisor < 7.0 that allows supervisor to overwrite itself?

for those who are wondering about linux on ps5, it requires one of two things, either hypervisor patches (< 3.xx) or kldload (leaked kernels are required for this and only up to a certain version they were shared around, 7.61). so unless someone gets more leaked kernels or the .text from 8.00 or higher, you can forget about linux on later versions

I ported Linux to the PS5 and turned it into a Steam Machine. Running GTA 5 Enhanced with Ray Tracing. 🤯

00 00 really should’ve been made into an invalid instruction when AMD made AMD64. “add [rax], al” is never an instruction you’d want to execute, and executing 00 00 realistically means something sent you to la-la land. And if you *really* wanted “add [rax], al”, use 40 00 00.

A cute way to store a core-specific pointer on x86-64 for kernel interrupt and syscall handlers without using the SWAPGS instruction: put it in a GDT entry’s segment limit. mov esp, 0x0060 lsl esp, sp neg rsp Now you have RSP=0xFFFFFFFF'XXXXX000 where -0xXXXXX is in the GDT.

@RobertDaleSmith @notnotzecoxao Is there a description of how it worked?

Xbox 360 controller authentication has been cracked! This is on a totally unmodified Xbox 360 console. All you need to try for yourself is a cheap Pi Pico W and the joypad-os firmware. The pi pico is able to totally simulate a real 360 controller.

@ZoidCTF r/spicypillows I probably have an extra around somewhere.

I've seen that used Nintendo 3DS prices have jumped up recently. Was curious if mine still worked and dug it out of storage. Wouldn't charge, so I opened it up and found out the battery was puffy. I don't think they are supposed to be pillow shaped. New battery time!

@LibTearstoken @krassenstein @MattWalshBlog And O.J. didn’t kill anyone, then.

@krassenstein @MattWalshBlog Rittenhouse was acquitted of all charges. No laws were broken.

This is retarded. Rittenhouse wasn’t interfering with law enforcement. He was only there because law enforcement was nowhere to be found. It’s literally the exact opposite situation.

Alex Pretti was murdered.

Alex Pretti’s last words: “Don’t touch her!” “Are you okay?” Renee Good’s last words: “I’m really not mad at you dude…” And this administration wants you to believe these fellow Americans were “domestic terrorists.” This must end. Abolish ICE.

@victorma_ @GoldenAgeUnfold Marco Rubio is preventing me from updating my passport with his policies.

@GoldenAgeUnfold 0 he is too weak for that position. We need someone like Marco Rubio.

What are the chances you'd vote for JD Vance for President in 2028? A. 100% B. 50% C. 25% D. 0%

@WomenBeingAwful @StephenKing @grok The problem is less what they’re doing now, but rather what they’re planning to do. Once most illegal immigrants are gone, the law will change to revoke citizenship of millions of non-whites, then deport them because they’re now illegal.

@StephenKing Hey @grok can you explain to this man the differences between the Gestapo and ICE

ICE is the American Gestapo.