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1.. _Sparc32-System-emulator:
2
3Sparc32 System emulator
4-----------------------
5
6Use the executable ``qemu-system-sparc`` to simulate the following Sun4m
7architecture machines:
8
9- SPARCstation 4
10
11- SPARCstation 5
12
13- SPARCstation 10
14
15- SPARCstation 20
16
17- SPARCserver 600MP
18
19- SPARCstation LX
20
21- SPARCstation Voyager
22
23- SPARCclassic
24
25- SPARCbook
26
27The emulation is somewhat complete. SMP up to 16 CPUs is supported, but
28Linux limits the number of usable CPUs to 4.
29
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30The list of available CPUs can be viewed by starting QEMU with ``-cpu help``.
31Optional boolean features can be added with a "+" in front of the feature name,
32or disabled with a "-" in front of the name, for example
33``-cpu TI-SuperSparc-II,+float128``.
34
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35QEMU emulates the following sun4m peripherals:
36
37- IOMMU
38
39- TCX or cgthree Frame buffer
40
41- Lance (Am7990) Ethernet
42
43- Non Volatile RAM M48T02/M48T08
44
45- Slave I/O: timers, interrupt controllers, Zilog serial ports,
6b90a4cd 46 :ref:`keyboard` and power/reset logic
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47
48- ESP SCSI controller with hard disk and CD-ROM support
49
50- Floppy drive (not on SS-600MP)
51
52- CS4231 sound device (only on SS-5, not working yet)
53
54The number of peripherals is fixed in the architecture. Maximum memory
55size depends on the machine type, for SS-5 it is 256MB and for others
562047MB.
57
58Since version 0.8.2, QEMU uses OpenBIOS https://www.openbios.org/.
59OpenBIOS is a free (GPL v2) portable firmware implementation. The goal
60is to implement a 100% IEEE 1275-1994 (referred to as Open Firmware)
61compliant firmware.
62
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63Please note that currently older Solaris kernels don't work; this is probably
64due to interface issues between OpenBIOS and Solaris.