Search found 152 matches
- Wed Mar 20, 2024 10:08 am
- Forum: QEMU
- Topic: qemu-system-m68k, vsync and Lemmings audio (trying to understand...)
- Replies: 5
- Views: 431
Re:
Well, there's a few things going on here. One is, audio emulation (in Mini vMac II and in QEMU-system-m68k) aren't fully functional; so under emulation, you're going to have audio sync issues. This has more to do with the audio buffer not being flushed at exactly the right time than it does with vs...
- Wed Mar 20, 2024 10:05 am
- Forum: QEMU
- Topic: qemu-system-m68k, vsync and Lemmings audio (trying to understand...)
- Replies: 5
- Views: 431
Re: qemu-system-m68k, vsync and Lemmings audio (trying to understand...)
Hi there! I am happily using qemu-system-m68k on GNU/Linux, built from latest Qemu GIT sources, to emulate a Quadra 800. Just to confirm this is the latest QEMU upstream sources at https://gitlab.com/qemu-project/qemu rather than my personal fork at github? Currently all outstanding QEMU 68k patche...
- Wed Dec 27, 2023 8:08 pm
- Forum: QEMU
- Topic: Is there a way to make QEMU PPC faster?
- Replies: 10
- Views: 5989
Re: Is there a way to make QEMU PPC faster?
In addition to that, can you also tell us the specs of your host? Best, Cat_7 Currently Windows 10 x64. I'll see if I can go 11 later. 8gb RAM. Core i7 4.00GHz That should be more than enough to run QEMU at a reasonable speed (my desktop workstation is about 8 years old), so you'll need to investig...
- Wed Dec 20, 2023 3:19 pm
- Forum: QEMU
- Topic: Is there a way to make QEMU PPC faster?
- Replies: 10
- Views: 5989
Re: Is there a way to make QEMU PPC faster?
35 secs to an open an app? That sounds completely broken: here on x86_64 the performance is good enough to provide a usable experience. Can you provide more information: - What host architecture/OS are you using? - What OS version are you attempting to boot? Where did you get the image from? - What...
- Wed Dec 06, 2023 2:18 pm
- Forum: General Macintosh Emulation
- Topic: Programming my own Mac emulator
- Replies: 87
- Views: 52426
Re: Programming my own Mac emulator
So, it turns out the reason icons and the text won't show up is because the ntrb QuickDrawText trap isn't properly working (i.e. StdTxMeas, StdText). With this deleted, the text does show up. However, to delete it, you have to edit the PowerPC Enabler. I suspect there may be some CPU error with the...
- Wed Dec 06, 2023 12:46 pm
- Forum: QEMU
- Topic: Is there a way to make QEMU PPC faster?
- Replies: 10
- Views: 5989
Re: Is there a way to make QEMU PPC faster?
Hello, I've been thinking if I can make QEMU PPC fast, I tried everything. Well, when I go with the memory towards 1008MB, It does an immediate kernel panic on boot. Does anyone know how can i fasten it? I've heard that Windows PPC is slow, but I can change the CPU model. I did that, but it still t...
- Sat Aug 19, 2023 12:29 pm
- Forum: QEMU
- Topic: cannot compile screamer (qemu ppc patched with audio) on fedora 38 linux [solved]
- Replies: 6
- Views: 4352
Re: cannot compile screamer (qemu ppc patched with audio) on fedora 38 linux [solved]
I think screamer branch is behind upstream qemu a bunch of commits, and has some bugs related to the build. I got it to build doing this: 0. Install needed depedencies (can vary from distro to distro) 1. git clone -b screamer https://github.com/mcayland/qemu.git qemu-screamer (do not do -r recursiv...
- Sat Aug 19, 2023 12:27 pm
- Forum: QEMU
- Topic: Qemu + Q800 + EMILE
- Replies: 1
- Views: 3788
Re: Qemu + Q800 + EMILE
Sorry, I am having a memory lane attack, and saw on mailing list for the q800 patch (https://lists.nongnu.org/archive/html/qemu-devel/2023-07/msg00114.html) that linux should be able to boot via EMILE. Has anyone figured out how to get it to boot, I can't get the toolbox rom (or qemu) to boot with ...
- Sat Aug 19, 2023 12:06 pm
- Forum: QEMU
- Topic: Mouse issues under Windows and modifying keycodes (SOLVED)
- Replies: 15
- Views: 5948
Re: Mouse issues under Windows and modifying keycodes (SOLVED)
If you can find out which line the NMI on cuda should toggle and let me know, it's a reasonably trivial piece of coding to get this working. From user powermax: That depends on the I/O controller Cuda is attached to. NMI signal is active low on PC2. Cuda's PC2 output pin is usually attached directl...
- Fri Aug 11, 2023 11:43 am
- Forum: QEMU
- Topic: Mouse issues under Windows and modifying keycodes (SOLVED)
- Replies: 15
- Views: 5948
Re: Mouse issues under Windows and modifying keycodes (SOLVED)
Even when setting directories via the command line, I just can't seem to get QEMU to read from share/keymaps. It doesn't even throw a code. Last time I built and tested on Windows I seem to recall that some of the paths were different compared to Linux - it has been a while though, so that issue is...
- Thu Jul 27, 2023 3:36 pm
- Forum: QEMU
- Topic: Unexpected MacsBug behaviour when stepping PPC code (SOLVED: patch inside!)
- Replies: 5
- Views: 3877
Re: Unexpected MacsBug behaviour when stepping PPC code
I'm running QEMU 8.1.0-rc1, but this problem has been around for at least a couple of years. Using MacsBug 6.6.3, there is a problem when stepping through PPC code. Note that 68k code does not have this bug. Whenever a branch is reached, MacsBug will jump to the address after the intended branch ad...
- Tue Jul 18, 2023 11:34 am
- Forum: Basilisk II
- Topic: How to restore a corrupted hard disk image?
- Replies: 17
- Views: 6673
Re: How to restore a corrupted hard disk image?
The reason for the difference between BII and real hardware I suspect comes down to how BII handles disk images -- meaning, none of the actual hardware is emulated, and not even the actual disk structure is maintained -- BII works against the HFS partition directly. This means that all the SCSI int...
- Mon Jul 17, 2023 8:22 am
- Forum: Basilisk II
- Topic: How to restore a corrupted hard disk image?
- Replies: 17
- Views: 6673
Re: How to restore a corrupted hard disk image?
You can always try booting to a minimal system with a copy of Disk FirstAid and try to repair the broken disk from there. It never worked for me, but it's worth trying. Was it common to wreck your system partition upon a crash or improper shutdown on real Macs? Or perhaps Basilisk is prone to this,...
- Thu Jul 13, 2023 5:39 am
- Forum: QEMU
- Topic: The UTM Thread
- Replies: 120
- Views: 72768
Re: The UTM Thread
... okay, that's weird. Instead of using UTM, I decided to try it using qemu from homebrew, using the same command line you used and it took... 39 seconds with -accel tcg, almost exactly the same as yours. With -accel kvm I get an error message: "qemu-system-x86_64: -accel kvm: invalid acceler...
- Thu Jul 13, 2023 5:31 am
- Forum: QEMU
- Topic: The UTM Thread
- Replies: 120
- Views: 72768
Re: The UTM Thread
Just tried firing up my UTM VM on my i9 and timing it; it took approximately 8 minutes 20 seconds. It looks like UTM uses -accel hvf when "Use Hypervisor" is selected. With "Use Hypervisor" turned off, it switches to -accel tcg. There doesn't seem to be an obvious way to force i...
- Wed Jul 12, 2023 1:54 pm
- Forum: QEMU
- Topic: The UTM Thread
- Replies: 120
- Views: 72768
Re: The UTM Thread
I suspect that something Osy's done with version 4 has forced x86 hosts to use the TCG emulator as well. And with the switch to QEMU 8 for 4.3.x (still in beta), it appears all sorts of things have broken (PPC and x86_64 emulators). Some of those things appear to be broken in QEMU though, not speci...
- Wed Jul 12, 2023 1:48 pm
- Forum: QEMU
- Topic: The UTM Thread
- Replies: 120
- Views: 72768
Re: The UTM Thread
Yeah, and the x86 code for the TCG emulator must be bad. I know the M1 Max is faster than the old Core i9 Macs, but not this much faster. QEMU's JIT is quite advanced, including its own optimiser, and is well-known to be one of the quickest around. What sort of numbers are you seeing? I have a test...
- Wed Apr 05, 2023 9:12 pm
- Forum: General Macintosh Emulation
- Topic: Looking for 68k Mac emulation with multiple network interfaces
- Replies: 7
- Views: 4494
Re: Looking for 68k Mac emulation with multiple network interfaces
Mark, is the SDLC mode on the Modem port for 68k the same as in non-GeoPort pre-USB PPC Macs? Just thinking that this may be useful in a more mainline architecture that's already stable, and so may be able to get more eyeballs for non-OT serial communications. I think it is, however QEMU uses the s...
- Wed Apr 05, 2023 8:30 pm
- Forum: General Macintosh Emulation
- Topic: Looking for 68k Mac emulation with multiple network interfaces
- Replies: 7
- Views: 4494
Re: Looking for 68k Mac emulation with multiple network interfaces
- Qemu (see above, the serial port spits out data if LocalTalk is configured, but I wasn't able to read proper LocalTalk frames yet) (Disclaimer: I am the author of the QEMU 68k patches for booting MacOS) The issue with QEMU and LocalTalk is that the ESCC serial emulation doesn't support synchronou...
- Wed Jan 25, 2023 11:48 am
- Forum: QEMU
- Topic: A/UX 3.0.1 white screen in QEMU 7.2.0
- Replies: 11
- Views: 7359
Re: A/UX 3.0.1 white screen in QEMU 7.2.0
Latest commit seems to be commit f25b3476ee2621a637251439eaebf357970f7638 (HEAD -> q800.upstream2-vm, origin/q800.upstream2-vm) i think that's the latest release on github too Host os is Linux Mint 21.1, cpu is Ryzen 7 7700X ran that exact same script, background was green this time but same result...
- Tue Jan 24, 2023 8:13 am
- Forum: QEMU
- Topic: A/UX 3.0.1 white screen in QEMU 7.2.0
- Replies: 11
- Views: 7359
Re: A/UX 3.0.1 white screen in QEMU 7.2.0
It seems to be an issue with the cdrom, I get to the "you need a cdrom screen" with the floppy however when I add the cdrom it gets to that same grey screen. Can you confirm the branch and version you are using with "git log", along with your host OS and CPU? I just did a test b...
- Thu Mar 24, 2022 8:46 am
- Forum: QEMU
- Topic: No keyboard input in OSX guest
- Replies: 2
- Views: 3360
Re: No keyboard input in OSX guest
I'm trying to rename the hard drive in my Mac OS X guest, but when I try to type the name, QEMU doesn't take the keyboard input at all. Config: qemu-system-ppc.exe ^ -L pc-bios ^ -cpu G4 ^ -M mac99 ^ -m 512 ^ --drive file=macosx100.img,format=qcow2,index=0,media=disk ^ -drive file=macosx100.toast,f...
- Thu Mar 24, 2022 8:43 am
- Forum: QEMU
- Topic: Installing Mac OS X DP1: Initialization failed
- Replies: 12
- Views: 6035
Re: Installing Mac OS X DP1: Initialization failed
Hi, This will get us to "this image is not for the platform" The installation instructions say DP1 can run on a G3 But when using g3beige we still get "this image is not for the platform" When setting auto-boot to false and setting " PowerMac1,1" encode-string " m...
- Tue Mar 22, 2022 9:25 pm
- Forum: QEMU
- Topic: Installing Mac OS X DP1: Initialization failed
- Replies: 12
- Views: 6035
Re: Installing Mac OS X DP1: Initialization failed
Okay I can see a few things there that could be an issue - firstly that combination of usb options is wrong, and like to cause problems with the mouse. And overriding the default CPU to a different one is going to cause a difference in behaviour compared with basic testing. As a starting point: For ...
- Tue Mar 22, 2022 8:37 pm
- Forum: QEMU
- Topic: Installing Mac OS X DP1: Initialization failed
- Replies: 12
- Views: 6035
Re: Installing Mac OS X DP1: Initialization failed
I'm trying to install Mac OS X DP1 in QEMU, but when I try to initialize the disk with a Mac OS X partition (Mac OS UFS), it works normally for a couple seconds, but then says that the initialization failed. Am I doing anything wrong? (I'm using the Windows version of QEMU.) Some users have reporte...