@BuLa, post #30
qemu-system-ppc -bios openbios-qemu.elf -L pc-bios -M mac99,via=pmu -m 2048 -boot d -prom-env 'boot-device=cd:,\mac_ppc32\boot.img' -cdrom morphos-3.13.iso -serial stdio -device ati-vga,model=rage128p,guest_hwcursor=true -g 1440x900x24