Interesting, I am not able to play HL2 on Steam because macOS no longer has 32-bit support and Valve never compiled if for 64-bit but here we are, it’s playable on the same OS in the browser.
BTW IIRC there was some method to convert the 32-bit game binaries to make them run on recent macs. I remember doing it.
How is that possible? 32 bits should be compatible with a 64 bit machine. You can always use less bits for your memory addresses.
Are there any other architecture changes that are preventing 32 bits binaries from running? Does that also mean that old software no longer runs unless there is a 64 bit version?
In windows you can run x32 and x64 executables in a 64 bits machine
Monsieur, on Windows this problem was solved with a large development effort, that's why it goes unnoticed on you. Note that CPU level instruction emulation is literally the easiest problem of emulation. (Why do you think you can't just go and execute Nintendo Switch binaries on your Mac M1? Both run ARM64.)
On Windows, this was is implemented as SysWOW64. WOW64 means Windows on Windows 64. It makes the userland emulation and pretends towards the process that everything around him (incl. drivers) are the 32-bit ones.
One of the big things here is that Intel and ARM processors are backwards-compatible with 32-bit instructions, even if they are 64-bit processors. Apple Silicon on the other hand is not, which is why Apple completely dropped support before switching.
Only the very first few models of Intel Macs had strictly 32-bit processors (the 2006 iMac and Mac minis with Core Solo/Core Duo processors), and none of them were realistically capable of playing Half-Life 2. Apple is guilty of many sins, but this isn't one of them. Valve should never have shipped a 32-bit application in the first place. The binary was already obsolete before it even left Bellevue.
> Only the very first few models of Intel Macs had strictly 32-bit processors (the 2006 iMac and Mac minis with Core Solo/Core Duo processors), and none of them were realistically capable of playing Half-Life 2.
What? First, those chips were plenty powerful to run HL2 (the game predates them). And second, all x86_64 chips can run older x86 32-bit code unmodified.
The reason macOS stopped supporting 32-bit code has nothing to do with the processors but more about them wanting to remove support for 32-bit binaries from the kernel and from all user-space libraries. To run a 32-bit binary, you need itself and all libraries it depends on to be 32-bit too, including the syscall boundary, which is "fine" (both Windows and Linux do this just fine, so it's really on Apple to have removed this). And I suppose Apple removed those because it was building towards a 64-bit-only world to simplify the Apple Silicon transition.
The CPUs were powerful enough, sure. The GPUs (Intel GMA950) absolutely weren't. Even on Windows with better drivers, Half-Life 2 is a slideshow on that class of hardware.
> Valve should never have shipped a 32-bit application in the first place.
It's literally a 2004 game! That's ridiculous. A handful of opterons existed in the market, but Intel wouldn't get there for years still and it was well over a decade until x86_64 crossed 50% market share in consumer stuff.
The don’t let backwards compatibility stop them from doing anything, but I don’t think they go out of their way to target games. That doesn’t make any sense to me.
In the case of hl2 the source code for the engine has leaked, so you can recompile it for your target platform of choice, no "conversion" needed. I got it running natively on aarch64 linux a while back, with no issues.
Everything in the process has to agree on how big the pointers are, or you need code to convert between the formats at the boundary. That means you either need 32-bit versions of all OS libraries, or you need a complicated shim layer. Apple went for having 32-bit versions of all OS libraries. But this isn't free to maintain, and they dropped them after a few years.
they're not saying it's fair to consumers, they're saying "it's not just apple, microsoft does it too", i.e. that judgement on apple should be made in the context of how its competitors behaved
I think they are saying the fair comparison should be what another 1st party GPU maker supports in their 1st party drivers, not whether or not Windows provides 1st party Vulkan implementation for 3rd party hardware.
Valve wanted steam to co-exist on the mac in the early days and John Sculley of Apple didn't want Apple to be seen as a gaming device or a "personal home computer". So they ceased contact with Valve and the rest is history. https://www.youtube.com/watch?v=lPTLPXNtb2I
Apple refused to license joysticks so they could prevent customers from considering early mac's as game machines and deliberately refused to support games on the machine. Myst was only few that were exclusive to the Mac; that they then ported to PC.
Apple is so obsessed with how their product is marketed and perceived that they all but eliminated gaming on the platform. It's hard to argue that it hasn't been effective, but I'll never understand why people accept that the people who make the computer should decide how you use it.
I wouldn't say 'eliminated gaming', they just have they've put a lot of encouragement into Mac gaming in recent years to the point that they're maintaining Rosetta 2 for game ports (via Crossover/Wine/Proton) even after its broader deprecation.
The main issue IMO is the Apple hardware itself isn't focused on raw performance, it's on energy efficiency and mobility. You'd need a MacBook Pro or Mac Studio at least to have the GPU cores & RAM to play the most recent PC games. And so they just tend to lead with casual games, live service games, and second run AAA games. Technically Apple maintains the world's largest gaming platform (by users & revenue) in iOS.
And plenty of AAA games have been ported to macOS like Cyberpunk 2077, the last few Assassin Creeds (Shadows, Mirage), or even iOS/iPadOS/visionOS like Control & Death Stranding, the recent Assassin's Creeds, Resident Evil 2 & 4 Remakes, RE 7 & 8, Civ 6 & Civ 7, etc.
It's weird, they still try to market it as a machine you can play games on. They make sure a lot of games make it over. It's just never the new cool ones, it's always stuff like a resident evil game from a few years ago or death stranding
It's because the hardware can't really handle the latest and greatest games unless you get the top end hardware. Their GPU innovation is on letting you run an AAA game from 5 years ago on a tablet.
On paper qemu should be able to do this. The hard part is hardware acceleration for the GPU. Without Apple putting effort into supporting this with e.g. documentation, that's a bit hard. That's also holding back linux support on Apple hardware. But it's a fixable problem that will only get easier as hw gets better and faster over time.
At what resolution. You're not going to software render 4K120FPS even with 2000s graphics. But you also don't need a software implementation since translating to a host API isn't really any harder than that (and often much easier). And this already exists in Wine.
I know it's not a remake, but Endless Sky[0] seems to be a pretty faithful "reimagining" of the EV series. Even has an Android port on F-Droid. I haven't played through much of it, but the first few minutes gave me immediate nostalgia.
BTW IIRC there was some method to convert the 32-bit game binaries to make them run on recent macs. I remember doing it.