Altera Nios II User Manual page 39

Chapter 2: Processor Architecture
Document Revision History
Table 2–7. Document Revision History (Part 2 of 2)
Date Version
May 2006 6.0.0
October 2005 5.1.0
May 2005 5.0.0
December 2004 1.2
September 2004 1.1
May 2004 1.0
February 2014 Altera Corporation
Added description of optional cpu_resetrequest and cpu_resettaken.
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Added section on single precision floating-point instructions.
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Maintenance release.
Added tightly-coupled memory.
Added new control register ctl5.
Updates for Nios II 1.01 release.
Initial release.
Changes
Nios II Processor Reference Handbook
2–23