system emulation (PowerPC)Use the executable qemu-system-ppc to simulate a complete PREP or PowerMac PowerPC system. QEMU emulates the following PowerMac peripherals: − UniNorth or Grackle PCI Bridge − PCI VGA compatible card with VESA Bochs Extensions − 2 PMAC IDE interfaces with hard disk and CD-ROM support − NE2000 PCI adapters − Non Volatile RAM − VIA-CUDA with ADB keyboard and mouse. QEMU emulates the following PREP peripherals: − PCI Bridge − PCI VGA compatible card with VESA Bochs Extensions − 2 IDE interfaces with hard disk and CD-ROM support − Floppy disk − NE2000 network adapters − Serial port − PREP Non Volatile RAM − PC compatible keyboard and mouse. QEMU uses the Open Hack’Ware Open Firmware Compatible BIOS available at http://perso.magic.fr/l_indien/OpenHackWare/index.htm. Since version 0.9.1, QEMU uses OpenBIOS http://www.openbios.org/ for the g3beige and mac99 PowerMac machines. OpenBIOS is a free (GPL v2) portable firmware implementation. The goal is to implement a 100% IEEE 1275-1994 (referred to as Open Firmware) compliant firmware. The following options are specific to the PowerPC emulation: -g WxH[xDEPTH] Set the initial VGA graphic mode. The default is 800x600x32. -prom-env string Set OpenBIOS variables in NVRAM, for example: qemu-system-ppc -prom-env 'auto-boot?=false' \ -prom-env 'boot-device=hd:2,\yaboot' \ -prom-env 'boot-args=conf=hd:2,\yaboot.conf' These variables are not used by Open Hack’Ware. More information is available at http://perso.magic.fr/l_indien/qemu-ppc/.