IBM

Freescale

Leon3

OpenSPARC T1 (Niagara)

ProtoFlex

Simply RISC S1

QEMU/FAST functional

MicroBlaze (v5.0)

ISA

PPC405

PPC

SPARC V8

UltraSPARC Arch 2005 (SPARC V9+)

SPARC V9

UltraSPARC Arch 2005 (SPARC V9+)

x86

MIPS-like RISC (w/o MMU)

FPU

no

no (available)

Yes (no source code)

Yes

not yet

Yes

software

partial IEEE 754 single precision

microarchitecture

5-stage, in-order, single-issue

7-stage, in-order?

7-stage, in-order pipeline

8-core, 32-thread, 6-stage pipe (1 core/1 thread in initial FPGA version)

ISA only

1-core, 4-thread derivative of OpenSPARC T1

ISA

3-stage in-order

licensing

restricted

yes

LGPL

GPL

SIMICS

GPL

LGPL

Xilinx EDK

speed

30MHz

25MHz

50MHz (0.85 MIPS/MHz)

25 MHz (Virtex-II)

<10MIPS

_?_

5MIPS

>100 MHz (0.5 MIPS/MHz)

size, in 4-input LUTs (w/o FPU)

20K

33.5K

8K

135K (full 8-Core), 48K (1 thread/1 core, placed&routed)

13K (partial core)

_?_

PowerPC

2.8K

HDL

Verilog

Verilog

VHDL

Verilog

Bluespec

Verilog

Verilog

Encrypted VHDL

verification suite

no

no

yes

Niagara (OpenSPARC)

Niagara

Niagara (OpenSPARC)

no

no

application base

ok

ok

ok

ok

Solaris Apps

_?_

everything

poor

operating system(s)

ok

ok

Linux 2.6

Solaris, Linux, *BSD

Solaris

Solaris, Linux, *BSD

Windows, Linux, Solaris, ...

uClinux 2.4

hardcore

yes

yes

no

no

no

no

no

no

64 bit

no

no

no

yes, full 64-bit

yes

yes, full 64-bit

yes (speed)

no

SMP support

no

no

Snoopy (w/o MMU)

CMT

not yet

CMT

_?_

no

virtualizability

no

no

no

yes (Hypervisor, LDOMs)

no

yes? (via Hypervisor)

_?_

no

bus interface

64-bit PLB

64-bit AMBA AHB2.0v6

32-bit AMBA (64-bit soon)

128-bit

64-bit (virtualized)

Opencores wishbone

_?_

32-bit OPB/MCH

Leon3 report on Virtex-2 and Virtex-5 (section 1.3 and 1.4) - http://radlab.cs.berkeley.edu/wiki/LEON3_area

ProtoFlex-SPARC follows a hybrid execution model that splits execution between FPGA emulation (a subset of the functionality) and SIMICS software simulation.

RampCoreSelectionMatrix (last edited 2006-09-28 22:34:47 by DavidWeaver)