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+@node Sparc32 System emulator
+@section Sparc32 System emulator
+@cindex system emulation (Sparc32)
+
+Use the executable @file{qemu-system-sparc} to simulate the following
+Sun4m architecture machines:
+@itemize @minus
+@item
+SPARCstation 4
+@item
+SPARCstation 5
+@item
+SPARCstation 10
+@item
+SPARCstation 20
+@item
+SPARCserver 600MP
+@item
+SPARCstation LX
+@item
+SPARCstation Voyager
+@item
+SPARCclassic
+@item
+SPARCbook
+@end itemize
+
+The emulation is somewhat complete. SMP up to 16 CPUs is supported,
+but Linux limits the number of usable CPUs to 4.
+
+QEMU emulates the following sun4m peripherals:
+
+@itemize @minus
+@item
+IOMMU
+@item
+TCX or cgthree Frame buffer
+@item
+Lance (Am7990) Ethernet
+@item
+Non Volatile RAM M48T02/M48T08
+@item
+Slave I/O: timers, interrupt controllers, Zilog serial ports, keyboard
+and power/reset logic
+@item
+ESP SCSI controller with hard disk and CD-ROM support
+@item
+Floppy drive (not on SS-600MP)
+@item
+CS4231 sound device (only on SS-5, not working yet)
+@end itemize
+
+The number of peripherals is fixed in the architecture.  Maximum
+memory size depends on the machine type, for SS-5 it is 256MB and for
+others 2047MB.
+
+Since version 0.8.2, QEMU uses OpenBIOS
+@url{https://www.openbios.org/}. 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.
+
+A sample Linux 2.6 series kernel and ram disk image are available on
+the QEMU web site. There are still issues with NetBSD and OpenBSD, but
+most kernel versions work. Please note that currently older Solaris kernels
+don't work probably due to interface issues between OpenBIOS and
+Solaris.
+
+@c man begin OPTIONS
+
+The following options are specific to the Sparc32 emulation:
+
+@table @option
+
+@item -g @var{W}x@var{H}x[x@var{DEPTH}]
+
+Set the initial graphics mode. For TCX, the default is 1024x768x8 with the
+option of 1024x768x24. For cgthree, the default is 1024x768x8 with the option
+of 1152x900x8 for people who wish to use OBP.
+
+@item -prom-env @var{string}
+
+Set OpenBIOS variables in NVRAM, for example:
+
+@example
+qemu-system-sparc -prom-env 'auto-boot?=false' \
+ -prom-env 'boot-device=sd(0,2,0):d' -prom-env 'boot-args=linux single'
+@end example
+
+@item -M [SS-4|SS-5|SS-10|SS-20|SS-600MP|LX|Voyager|SPARCClassic] [|SPARCbook]
+
+Set the emulated machine type. Default is SS-5.
+
+@end table
+
+@c man end
+