Hello Renato, Am 19.11.2011 22:20, schrieb Renato Utsch: > I am making a dreamcast emulator and I wanted to know the status > of the sh-4 emulator, if it is stable, if it actually works, etc... And > the same for the ARM7-TDMI emulator (if QEMU supports it, it supports?), > because this would save months of work. QEMU sh-4 and arm emulators are > stable enough for doing something like that?
I know little about Dreamcast, but from looking at Wikipedia [1] it looks as if ARM7 is used only for sound. So unless you want to develop a new sound firmware, you can treat it as a black box and focus on SH-4. sh4-softmmu has been successfully used to boot Linux on certain boards. What will remain is for you to add a Dreamcast machine, instantiating the CPU and devices, and implementing those not available in QEMU today, such as GD-ROM. For PowerVR CLX2 you might be able to share some code with OMAP's PowerVR SGX. > how could I use the QEMU emulation > without opening the actual program? I mean, there is a library for using > the emulation in another programs? No. The way to go about your project would be to add the missing pieces to QEMU's system emulation, mostly in hw/ directory, and to run it via qemu-system-sh4 -M dreamcast. You should work with Git and submit any target-sh4 fixes to this mailing list as well as probably any new devices. If however you intend to do any Dreamcast-specific frontend skinning, such parts would probably be less interesting for qemu.git. You might want to compare ZX Spectrum emulation [2], the Android SDK [3] and iEmu [4]. Regards, Andreas [1] http://en.wikipedia.org/wiki/Dreamcast#Hardware [2] http://wiki.qemu.org/Features/Z80 [3] http://tools.android.com/overview [4] http://www.iemu.org/
