riscv/addrenv: Fix the user VMA end address

The end address was off by 1, making it overflow to 0 (u32 value).

Documentation/ReleaseNotes/NuttX-0.1.0

@@ -0,0 +1,12 @@
+NuttX-0.1.0
+-----------
+
+This is the initial. This initial includes the complete NuttX RTOS
+with support for the Linux user mode simulation and the TI TMS320C5471
+(Arm7) processor. Partial support for the 87C52 is included.
+
+This release has been verified on both the Linux user-mode and C5471
+platforms using the test program under examples/ostest. Test results
+for the C5471 can be found in arch/c5471/doc/test-results.txt.
+
+This tarball contains a complete CVS snapshot from March 9,2007.

Documentation/ReleaseNotes/NuttX-0.1.1

@@ -0,0 +1,21 @@
+NuttX-0.1.1
+-----------
+
+This is the second release of NuttX. This release includes the following.
+See the ChangeLog for more detailed description of the changes.
+
+(1) General OS bugfixes (see the ChangeLog for details),
+(2) bugfixes for the TI TMS320C5471 (Arm7) platform (see
+the ChangeLog)
+(3) Complete support for the 87C52. (However, the 87C52
+release is not stable enough for general usage).
+(4) Added the beginning of a shell call NuttShell (nsh)
+
+This release has been verified on the Linux user-mode platform, the
+Spectrum Digital TMS320C5471 EVM, and the PJRC 87C52 development board
+using the test program under examples/ostest.
+
+STATUS: The development status remains as ALPHA until further testing
+is performed.
+
+This tarball contains a complete CVS snapshot from March 14, 2007.

Documentation/ReleaseNotes/NuttX-0.1.2

@@ -0,0 +1,20 @@
+NuttX-0.1.2
+-----------
+
+This is the third release of NuttX. This release is
+primarily a bugfix release with minimal new features. See
+the ChangeLog for a more detailed description of the
+changes.
+
+(1) Several important OS and ARM7 bugfixes,
+(2) opendir(), closedir(), readdir(), etc. added
+(3) Added C5471 watchdog timer.
+(4) Created a shareable, serial driver.
+(5) Added 'ls' command to NuttShell (nsh)
+(6) Added a test of the round robin scheduler
+
+This release has been verified on the Linux user-mode
+platform, the Spectrum Digital TMS320C5471 EVM using the
+test program under examples/ostest.
+
+This tarball contains a CVS snapshot from March 19, 2007.

Documentation/ReleaseNotes/NuttX-0.2.1

@@ -0,0 +1,20 @@
+NuttX-0.2.1
+-----------
+
+This is the fourth release of NuttX. This release adds adds
+support for a new platform, restructures many header files,
+and adds a few new features:
+
+(1) Support for Neuros OSD / DM320
+(2) Restructuring of header files for better POSIX compliance
+(3) Added kill()
+(4) Added POSIX timers
+(5) bugfixes and documentation updates
+
+This release has been verified on the Linux user-mode
+platform, the Spectrum Digital TMS320C5471 EVM, and the
+Neuros OSD using the test program under examples/ostest. Because
+of the stability of these tests, the project status
+has been upgraded to 'beta.'
+
+This tarball contains a complete CVS snapshot from March 22, 2007.

Documentation/ReleaseNotes/NuttX-0.2.2

@@ -0,0 +1,20 @@
+NuttX-0.2.2
+------------
+
+This is the fifth release of NuttX. There is no major new
+functionality in this release. This release adds support
+for new pthread barrier APIs, changes the directory
+structure, to better handle different board configurations
+using the same processor architecture, and corrects a few
+defects.
+
+See the ChangeLog for a complete list of changes.
+
+This release has been verified on the Linux user-mode
+platform and the Neuros OSD using the test program under
+examples/ostest. There are no known, critical defects but
+the project development status remains at 'beta' status
+pending further test and evaluation.
+
+This tarball contains a complete CVS snapshot from
+March 26, 2007.

Documentation/ReleaseNotes/NuttX-0.2.3

@@ -0,0 +1,20 @@
+NuttX-0.2.3
+------------
+
+This is the sixth release of NuttX. This release is
+primarily a bugfix release. Numerous problems were fixed
+as detailed in the change log. New functionality includes
+support for timed message queues.
+
+See the ChangeLog for a complete list of changes.
+
+This release has been verified on the Linux user-mode
+platform and the Neuros OSD using the test program under
+examples/ostest. The results of the testing is available in
+the source tree under configs/ntosd-dm320/doc/test-results.
+There are no known, critical defects but the project
+development status remains at 'beta' status pending further
+test and evaluation.
+
+This tarball contains a complete CVS snapshot from March 29,
+2007.

Documentation/ReleaseNotes/NuttX-0.2.4

@@ -0,0 +1,20 @@
+NuttX-0.2.4
+------------
+
+This is the 7th release of NuttX. This release is only to roll out
+build changes to better support different SoC's that use the same
+processor architecture. In particular, the two existing ARM architectures,
+c5471 and DM320 were combined into a single ARM directory. This was done
+in preparation for an LPC2148 port that is currently in progress. There
+is NO new functionality or significant bugfixes in this release.
+
+See the ChangeLog for a complete list of changes.
+
+This release has been verified on the Linux user-mode platform
+and the Neuros OSD using the test program under examples/ostest.
+The results of the testing is available in the source tree under
+configs/ntosd-dm320/doc/test-results and under configs/sim/doc/test-results.
+There are no known, critical defects but the project development status
+remains at 'beta' status pending further test and evaluation.
+
+This tarball contains a complete CVS snapshot from April 28, 2007.

Documentation/ReleaseNotes/NuttX-0.2.5

@@ -0,0 +1,22 @@
+NuttX-0.2.5
+------------
+
+This is the 8th release of NuttX. This release includes:
+
+(1) Several bug fixes
+(2) Initial support for FAT filesystems. Testing has not
+been exhaustive and some functionality is missing
+(mkdir, stat, unlink chmod, and rename functionality is
+not yet implemented).
+(3) Support for the NXP lpc2148 processor is included but
+is untested as of this writing. The current
+implementation includes only support for serial console
+and timer interrupt.
+
+See the ChangeLog for a complete list of changes.
+
+This release has been verified only on the Linux user-mode
+platform.
+
+This tarball contains a complete CVS snapshot from May 19,
+2007.

Documentation/ReleaseNotes/NuttX-0.2.6

@@ -0,0 +1,17 @@
+NuttX-0.2.6
+-----------
+
+This is the 9th release of NuttX. This is primarily a
+bugfix release to correct a number of problems introduced
+with the 0.2.5 release. This release does include some FAT
+filesystem extensions including unlink(), mkdir(), rmdir(),
+rename(), opendir(), closedir(), readdir(), seekdir(),
+telldir(), rewindir(). There are some pending FAT changes
+that did not make it into this release including stat(),
+truncate(), and long file names.
+
+See the ChangeLog for a complete list of changes.
+
+This release has been verified only on the Linux user-mode platform.
+
+This tarball contains a complete CVS snapshot from May 26, 2007.

Documentation/ReleaseNotes/NuttX-0.2.7

@@ -0,0 +1,15 @@
+NuttX-0.2.7
+-----------
+
+This is the 10th release of NuttX. This is primarily a bugfix
+release to correct a number of problems reported to me (thanks
+Didier!). This release does include the final changes complete the
+FAT filesystem logic including stat(), statfs(), and non-standard
+APIs to manage FAT attributes. At present, FAT long file names and
+file truncate() are still not supported.
+
+See the ChangeLog for a complete list of changes.
+
+This release has been verified only on the Linux user-mode platform.
+
+This tarball contains a complete CVS snapshot from June 9, 2007.

Documentation/ReleaseNotes/NuttX-0.2.8

@@ -0,0 +1,14 @@
+NuttX-0.2.8
+-----------
+
+This is the 11th release of NuttX. This release:
+(1) corrects important bugs in opendir() and realloc()
+(2) adds support for environment variables
+(3) adds several new C library interfaces
+(4) extends several example programs
+
+See the ChangeLog for a complete list of changes.
+
+This release has been verified only on the Linux user-mode platform.
+
+This tarball contains a complete CVS snapshot from July 2, 2007.

Documentation/ReleaseNotes/NuttX-0.2.9

@@ -0,0 +1,14 @@
+NuttX-0.2.8
+-----------
+
+This is the 11th release of NuttX. This release:
+(1) corrects important bugs in opendir() and realloc()
+(2) adds support for environment variables
+(3) adds several new C library interfaces
+(4) extends several example programs
+
+See the ChangeLog for a complete list of changes.
+
+This release has been verified only on the Linux user-mode platform.
+
+This tarball contains a complete CVS snapshot from July 2, 2007.

Documentation/ReleaseNotes/NuttX-0.3.0

@@ -0,0 +1,23 @@
+NuttX-0.3.0
+-----------
+
+This is the 12th release of NuttX. This release includes the initial
+integration of a network subsystem and the uIP TCP/IP stack into NuttX
+(see http://www.sics.se/~adam/uip/index.php/Main_Page). Also included
+is a device driver for the Davicom DM90x0 Ethernet controller.
+
+This integration is very preliminary. Only a small portion of the
+network functionality has been integrated and there are a number of
+open issues (see the TODO file). The network subsystem is pre-alpha
+at this point in time. I expect that it will stabilize and mature
+over the next few releases.
+
+The baseline functionality of NuttX continues to mature and remains at
+post-beta (as long as the network is not used).
+
+See the ChangeLog for a complete list of changes.
+
+This release has been verified only on the Neuros OSD (DM320 ARM9)
+platform using the DM90x0 driver.
+
+This tarball contains a complete CVS snapshot from November 6, 2007.

Documentation/ReleaseNotes/NuttX-0.3.1

@@ -0,0 +1,23 @@
+NuttX-0.3.1
+-----------
+
+This is the 13th release of NuttX and the second release containing
+the integration of a network subsystem and the uIP TCP/IP, UDP, and
+ICMP stacks into NuttX (see http://www.sics.se/~adam/uip/index.php/Main_Page).
+
+Many network-related problems have been fixed and the implementation
+has matured significantly. However, the level of network reliability
+is probably still at the pre-alpha or early level. It is sufficiently
+complete that you may begin to perform some network integration and
+is expected to achieve beta level of reliability over the next few
+releases.
+
+The baseline functionality of NuttX continues to mature and remains at
+post-beta (as long as the network is not used).
+
+See the ChangeLog for a complete list of changes.
+
+This release has been verified only on the Neuros OSD (DM320 ARM9)
+platform using the DM90x0 driver.
+
+This tarball contains a complete CVS snapshot from November 19, 2007.

Documentation/ReleaseNotes/NuttX-0.3.10

@@ -0,0 +1,10 @@
+NuttX-0.3.10
+------------
+
+This is the 22nd release of NuttX. This is an important bug fix
+release. This release incorporates fixes to correct critical list
+handling errors in task shutdown logic: One in timer deletion logic
+(timer_delete.c) and one in stream logic (lib_init.c). This release
+also includes support to ZiLOG EZ80Acclaim microcontroller (EZ80F91
+chip) and configurations for the ZiLOG z8f64200100kit (Z8F6423) and
+ez80f0910200kitg (EZ80F091) development kit.

Documentation/ReleaseNotes/NuttX-0.3.11

@@ -0,0 +1,22 @@
+NuttX-0.3.11
+------------
+
+This is the 23rd release of NuttX. This is another important bugfix
+release. This releases fixes several bugs:
+
+* Two POSIX timer bugs: a memory leak as well a fatal sequencing error.
+* Several FAT filesystem errors.
+* A deadlock that can occur in opendir()
+
+A few new features were also added:
+
+* Support for recursive mutexes
+* Added a RAM disk block driver
+* The host simulator no longer uses direct Linux system calls and
+now also works on Cygwin.
+* The OS test was strengthen and now runs as an endurance test
+
+These changes were verified only on the Host simulator under Cygwin.
+Please report any errors to me.
+
+This tarball contains a complete CVS snapshot from June 1, 2008.

Documentation/ReleaseNotes/NuttX-0.3.12

@@ -0,0 +1,21 @@
+NuttX-0.3.12
+------------
+
+This is the 24th release of NuttX. This release includes some minor
+bugfixes as well as a few new features. Bugs fixed include:
+
+* Corrected an error in recursive mutex implementation.
+* task_create() was only dup()ing the first three file descriptors.
+* Fixed driver open reference counting errors in dup(), dup2(), and exit().
+* Fixed error handling logic in fflush().
+
+New features were also added:
+
+* Pipes and pipe() API
+* FIFOs and mkfifo() API
+* mkfatfs() API can be used to format FAT file systems.
+
+These changes were verified only on the Host simulator under Cygwin.
+Please report any errors to me.
+
+This tarball contains a complete CVS snapshot from August 10, 2008.

Documentation/ReleaseNotes/NuttX-0.3.13

@@ -0,0 +1,42 @@
+NuttX-0.3.13
+------------
+
+This is the 25th release of NuttX. This release includes some
+important bugfixes as well as a few new features. Bugs fixed
+include:
+
+* Fixed problems with Cygwin-based console input. NSH now works
+with the Cygwin simulator.
+* sched_get_priority_max/min returned error on SCHED_RR
+* Corrected detection of End-of-File in fgets()
+* Fixed an error in opendir() that could cause an assertion to fail
+inappropriately.
+* Corrected an error in the FAT that caused files opened for writing
+with O_APPEND to fail.
+* Fix error in getopt() when called with argc==1
+* Fix error in stat() when used on the root directory
+* Fixed a critical bug that effects the way that environment variables
+are shared among pthreads.
+* uIP port now supports multi-threaded, concurrent socket access.
+So, for example, one thread can be reading from a socket while
+another is writing to the socket.
+
+New features were also added:
+
+* New OS APIs: chdir() and getcwd()
+* The NuttX shell (NSH) has been extended in many ways.
+- New commands: mkfatfs, mkfifo, sleep, usleep, nice, sh, cd, and pwd
+- New memory inspection commands and heap usage commands
+- New capabilities:
+- Execution of commands in background
+- Execution of simple scripts
+- Redirection of command output
+- Last command status ($?)
+- Now supports if-then[-else]-fi construct
+- Other features as noted in the ChangeLog.
+
+These changes were verified only on the Host simulator under Cygwin
+and under Linux and also on the Neuros OSD (ARM9). Please report
+any errors to me.
+
+This tarball contains a complete CVS snapshot from September 1, 2008.

Documentation/ReleaseNotes/NuttX-0.3.14

@@ -0,0 +1,41 @@
+NuttX-0.3.14
+-----------
+
+This is the 26th release of NuttX. This release includes some
+important bugfixes as well as a few new features. Critical bugs
+fixed include:
+
+FAT FS:
+* Fixed several critical bugs with regard to fat reading and
+writing and FAT12 accesses. Basically the FAT FS only worked
+with my tiny test files and test cases. A lot of stronger FAT
+tested is still needed!
+* Fixed another FAT bug in implementation of FAT lseek();
+this prohibited correct random access to large files.
+
+Network:
+* Corrected a critical bug that may prevent recvfrom from receiving
+packets from most remote UDP port numbers.
+* Corrected an error in multi-threaded socket handling in send() and
+sendto(). Outgoing data could overwrite incoming data.
+* Corrected IP checksum calculation in ICMP and UDP message send logic.
+* Corrected an error in send() timeout logic.
+
+New features were also added:
+
+Network:
+* Added support for application access to ICMP protocol stacks
+* Added ping request logic (net/uip).
+* Added basic TFTP client logic (netutils/tftpc).
+
+NuttShell (NSH):
+* New commands: 'test', '[', 'ping', 'mkrd', 'xd', and TFTP 'get' and 'put'
+See the new NuttShell User Guide for additional information.
+
+Other less critical bugs were also fixed and other less important
+features were were added. See the ChangeLog for details.
+
+These changes were verified only on the Neuros OSD (ARM9). Please
+report any errors to me.
+
+This tarball contains a complete CVS snapshot from September 8, 2008.

Documentation/ReleaseNotes/NuttX-0.3.15

@@ -0,0 +1,18 @@
+NuttX-0.3.15
+-----------
+
+This is the 27th release of NuttX. This release includes some new features:
+
+* Adds support for the ROMFS filesystem
+* ROMFS supports mmap() to provide eXecute In Place (XIP) capability
+* NuttShell (NSH) can be configured to use ROMFS to provide a tiny read-only
+filesystem with a startup script in /etc.
+* Completed the basic port of the NXP LPC2148 on the mcu123.com board.
+The basic port includes successful booting, timer interrupts,
+serial console, successfully passing the examples/ostest, and a
+NuttShell (NSH) configuration.
+
+These changes were verified only on the mcu123.com NXP LPC2148
+board. Please report any errors to me.
+
+This tarball contains a complete CVS snapshot from September 20, 2008.

Documentation/ReleaseNotes/NuttX-0.3.16

@@ -0,0 +1,60 @@
+NuttX-0.3.16
+-----------
+
+This is the 28th release of NuttX. This release includes the first
+support for USB in NuttX. A set of USB APIs were added to support
+USB device controller drivers and bindings to USB device class
+drivers. The form of the interface was inspired by the Linux Gadget APIs.
+
+At present USB device controller drivers are included for:
+* The NXP LPC214x. This driver has been verified and is an early alpha
+stage in quality.
+* TI DM320. Coding for this driver is complete but it is completely
+untested as of this release.
+
+A controller-independent class driver is also included for:
+* USB serial class device driver (emulates the Prolific PL2303
+serial-to-USB adapter). This driver has only been verified with
+the Linux host PL2303 driver.
+
+Other new features include:
+* Add an option to set aside a separate stack for interrupt
+handling (ARM only). This is useful when memory is constrained,
+there are multiple tasks, and the interrupt stack requirement
+is high (as when USB is enabled).
+
+A few bugs were also fixed:
+* Fixed the frequency of system timer interrupts in the NXP LPC214x port
+(off by 20x in nuttx-0.3.15)
+* Fixed serial driver bugs related to (1) open counts and (2) recognizing
+O_NONBLOCK on read.
+* Fixed an error in read(); it was not setting the errno on errors returned
+from the driver.
+
+These changes were verified only on the mcu123.com NXP LPC2148 board
+using with a Linux host. Please report any errors to me.
+
+This tarball contains a complete CVS snapshot from October 10, 2008.
+
+UPDATE
+------
+This release does not build for the ARM target when USB is disabled.
+Here is the fix:
+
+Index: arch/arm/src/common/up_internal.h
+===================================================================
+RCS file: /cvsroot/nuttx/nuttx/arch/arm/src/common/up_internal.h,v
+retrieving revision 1.13
+diff -u -r1.13 up_internal.h
+--- arch/arm/src/common/up_internal.h 6 Oct 2008 16:20:52 -0000 1.13
++++ arch/arm/src/common/up_internal.h 13 Oct 2008 20:48:21 -0000
+@@ -200,7 +200,8 @@
+extern void up_usbinitialize(void);
+extern void up_usbuninitialize(void);
+#else
+-# define up_netinitialize()
++# define up_usbinitialize()
++# define up_usbuninitialize()
+#endif
+
+#endif /* __ASSEMBLY__ */

Documentation/ReleaseNotes/NuttX-0.3.17

@@ -0,0 +1,29 @@
+NuttX-0.3.17
+------------
+
+This is the 29th release of NuttX. This release includes the
+additional support for USB in NuttX. The following new features
+were added:
+
+* Added support for SPI-based MMC/SD cards (with an SPI driver
+for the NXP LPC214x).
+* Added USB storage class device side driver (BBB)
+* Added an example that demonstrates the USB storage class by
+exporting the SPI based MMC/SD card on the NXP LPC214x.
+
+This is an early alpha release of these drivers. At present they
+only work with debug features enabled so there are probably some
+race conditions that occur only with debug features disabled.
+(Anyone out there with a USB analyzer? I would love to know what
+is happening.)
+
+Several important bugs were also fixed in the FAT file system, USB
+serial driver and NXP LPC214x USB controller driver. (See the ChangeLog
+for details.)
+
+These changes were verified only on the mcu123.com NXP LPC2148 board
+using a Linux development environment. USB testing was performed
+using both a Linux host and a WinXP host. Please report any errors
+to me.
+
+This tarball contains a complete CVS snapshot from October 28, 2008.

Documentation/ReleaseNotes/NuttX-0.3.18

@@ -0,0 +1,46 @@
+NuttX-0.3.18
+------------
+
+This is the 30th release of NuttX. This release includes two
+partially completed ports, several new features, and a couple of
+important bug fixes. The two partially completed ports are:
+
+* The STMicro STR71x processor and configuration for the Olimex
+STR-P711 board.
+* The Hitachi SH-1 using the SH1_LCEVB1 (SH-1/US7032EVB1) board
+
+Progress on these ports is stalled (as detailed in the ChangeLog).
+
+The new features focus primarily on management of block devices and
+extensions of the NuttShell (NSH). These include:
+
+* A loop device that converts a file into a block device.
+* A block to character (BCH) driver that allow access a block device as
+if it were character device.
+* Added strcasecmp() and strncasecmp() libc functions.
+* Added the 'dd' and 'losetup' commands to NSH. These commands
+(along with mkfatfs and mount), give good management of filesystems
+on the target.
+
+Several bugs were fixed, the most important of which are:
+
+* Fixed a race condition workaround delay in LPC214X SPI logic.
+This was also the cause of some bad MMC/SD performance on that
+platform.
+
+* Fixed a recently introduced FAT file system problem: It would
+mount a (invalid) FAT file system even if the medium is not formatted!
+
+* Corrected two other important errors in the FAT lseek() implementation:
+1 - The sectors-per-cluster value was being reset to "1".
+2 - Important lseek logic was omitted when the seek position was zero.
+
+The FAT filesystem has had many bugs fixed in it and, I think, is
+now maturing and becoming stable.
+
+These changes were verified only on the mcu123.com NXP LPC2148
+board, the Hitachi SH1_LCEVB1 board, and the Linux simulator, all
+using a Linux development environment. Please report any errors
+to me.
+
+This tarball contains a complete CVS snapshot from November 16, 2008.

Documentation/ReleaseNotes/NuttX-0.3.19

@@ -0,0 +1,39 @@
+NuttX-0.3.19
+------------
+
+This is the 31st release of NuttX. This release includes the
+following new feature:
+
+* Add poll() and select() APIs that may be used to monitor for
+data availability on character devices or TCP/IP sockets.
+* Implemented support TCP/IP connection backlog. This allows
+select() to wake-up on new connections to a listener socket.
+* Added definition of a framebuffer driver and implement framebuffer
+drivers for the simulated platform and the TI DM320 (untested
+as of the initial check-in).
+* Partially developed a graphics framework based on the framebuffer
+drivers, however, this will not be ready for use for a few more
+releases. Currently this includes only a few color conversion
+routines and some rasterizing functions. A tiny windowing system
+is under development but not ready for check-in yet.
+* Added support for fixed precision math.
+* Added support for outgoing multicast packets.
+
+Several bugs were fixed, the most important of which are:
+
+* Fixed an important bug in the TCP/IP buffering logic. When
+TCP/IP read-ahead is enabled and not recv() is in-place when a
+TCP/IP packet is received, the packet is placed into a read-ahead
+buffer. However, the old contents of the read-ahead buffer
+were not being cleared and old data would contaminate the newly
+received buffer.
+
+* Changed the behavior of the serial driver read. It now returns
+data as it is available rather than waiting for the full requested
+read size. This makes functions like fgetc() work much more
+smoothly.
+
+These changes were verified only on the Neuros OSD (ARM9) using a
+Linux development environment. Please report any errors to me.
+
+This tarball contains a complete CVS snapshot from November 26, 2008.

Documentation/ReleaseNotes/NuttX-0.3.2

@@ -0,0 +1,27 @@
+NuttX-0.3.2
+-----------
+
+This is the 14th release of NuttX and the 3rd release containing
+the integration of a network subsystem and the uIP TCP/IP, UDP, and
+ICMP stacks into NuttX (see http://www.sics.se/~adam/uip/index.php/Main_Page).
+
+Many network-related problems have been fixed and the implementation
+has matured significantly. This release consists of:
+
+o TCP-related bug-fixes
+o TCP performance improvements
+o Initial UDP integration
+o Initial uIP micro webserver integration
+
+See the ChangeLog for a complete list of changes.
+
+The level of network reliability is at alpha level is expected to
+achieve beta level of reliability over the next few releases.
+
+The baseline functionality of NuttX continues to mature and remains at
+post-beta.
+
+This release has been verified only on the Neuros OSD (DM320 ARM9)
+platform using the DM90x0 driver.
+
+This tarball contains a complete CVS snapshot from November 23, 2007.

Documentation/ReleaseNotes/NuttX-0.3.3

@@ -0,0 +1,31 @@
+NuttX-0.3.3
+-----------
+
+This is the 15th release of NuttX and the 4th release containing
+the integration of a network subsystem and the uIP TCP/IP, UDP, and
+ICMP stacks into NuttX (see http://www.sics.se/~adam/uip/index.php/Main_Page).
+
+Many network-related problems have been fixed and the implementation
+has matured significantly. This release consists of:
+
+o TCP-related bug-fixes for disconnecting sockets
+o Correction of some TCP read-ahead logic
+o TCP performance improvements
+o Misc. additions and cleanup (See the ChangeLog for a complete list of
+changes).
+
+The level of network reliability is at an early beta release level. The
+baseline functionality of NuttX continues to mature and remains at
+post-beta. Open network-related issues include only:
+
+o Some minor unimplemented BSD socket functionality,
+o Thread safety issues: the same socket cannot be used concurrently on
+different threads.
+o Pending design changes necessary to support multiple network interfaces.
+o IPv6 support is incomplete.
+
+This release has been verified only on the Neuros OSD (DM320 ARM9)
+platform using the DM90x0 driver. Any feedback for improving the network
+reliability/performance would be greatly appreciated.
+
+This tarball contains a complete CVS snapshot from November 28, 2007.

Documentation/ReleaseNotes/NuttX-0.3.4

@@ -0,0 +1,30 @@
+NuttX-0.3.4
+-----------
+
+This is the 16th release of NuttX and the 5th release containing
+the integration of a network subsystem and the uIP TCP/IP, UDP, and
+ICMP stacks into NuttX (see http://www.sics.se/~adam/uip/index.php/Main_Page).
+
+This release is primarily a bug-fix release. New features include
+only:
+
+o TELNET front-end to NSH,
+o DHCPC server functionality, and
+o C5471 Ethernet driver.
+
+Numerous network related problems were fixed related to DHCPC, UDP
+input processing, UDP broadcast, send timeouts, and bad compilation when
+uIP is compiled at high levels of optimization.
+
+The level of network reliability is at a strong beta release level. The
+baseline functionality of NuttX continues to mature and remains at
+post-beta or production level.
+
+Parts of this release were verified only on the Neuros OSD (DM320 ARM9)
+platform using the DM90x0 Ethernet driver and other parts on the Spectrum
+Digital C5471 EVM using the C5471 Ethernet driver. Any feedback about bugs
+or suggestions for improving the network reliability/performance would be
+greatly appreciated.
+
+This tarball contains a complete CVS snapshot from December 10, 2007.
+

Documentation/ReleaseNotes/NuttX-0.3.5

@@ -0,0 +1,12 @@
+NuttX-0.3.5
+-----------
+
+This is the 17th release of NuttX this release is primarily a bug-fix
+release and intended to synchronize with the current CVS contents. See
+the ChangeLog for a detailed list of changes and fixes.
+
+This release were verified only on the Spectrum Digital C5471 EVM using
+the C5471 Ethernet driver. Any feedback about bugs or suggestions for
+improvement would be greatly appreciated.
+
+This tarball contains a complete CVS snapshot from December 18, 2007.

Documentation/ReleaseNotes/NuttX-0.3.6

@@ -0,0 +1,27 @@
+NuttX-0.3.6
+-----------
+
+This is the 18th release of NuttX. This release contains on a few
+changes. The primary purpose of this release is to synchronize with
+the release of the pascal-0.1.0 add-on package.
+
+This release of NuttX includes the following changes:
+
+* Fixes for use with SDCC compiler
+* Added a simulated z80 target (arch/z80)
+* Fix deadlock errors when using stdio but with no buffering
+* Add support for the add-on Pascal P-Code interpreter (pcode/)
+(see the pascal-0.1.0 package)
+
+This release were verified only on the simulated Z80 and host
+simulation targets. As usual, any feedback about bugs or suggestions
+for improvement would be greatly appreciated.
+
+This tarball contains a complete CVS snapshot from January 6, 2007.
+
+====
+
+There was an error in the initial 0.3.6 release that prevented
+a successful build unless the Pascal add-on was present. The
+tarball was patched to include the fix. Make sure that you download
+the nuttx-0.3.6.1.tar.gz version to avoid this problem.

Documentation/ReleaseNotes/NuttX-0.3.7

@@ -0,0 +1,29 @@
+NuttX-0.3.7
+-----------
+
+This is the 19th release of NuttX. This release includes the
+preliminary port of NuttX to the ZiLOG z16f 16-bit microcontroller.
+This port was verified using the ZiLOG z16f2800100zcog Development
+and the ZiLOG ZDS-II toolchain. See http://www.zilog.com for
+further information.
+
+I emphasize that this is a preliminary release of the z16f port and
+is only alpha or, perhaps, pre-alpha quality as of this writing.
+There are a list of known issues in the TODO file in the root of
+the NuttX directory. The overall quality of NuttX (excluding the
+z16f port) continues to improve beyond the late beta level.
+
+The z16f port required numerous changes to NuttX to handle:
+
+* NEAR and FAR addressing, and
+* Use of a Windows native toolchain in a Cygwin build environment.
+
+In addition to the z16f port, at least one very critical bug was
+found and corrected in NuttX: The thread-specific errno value of one
+task was being randomly trashed when a different thread exited.
+
+This release were verified on the ZiLOG z16f2800100zcog, Neuros OSD
+(ARM9), and the simulation platforms. As usual, any feedback about bugs
+or suggestions for improvement would be greatly appreciated.
+
+This tarball contains a complete CVS snapshot from January 31, 2008.

Documentation/ReleaseNotes/NuttX-0.3.8

@@ -0,0 +1,9 @@
+NuttX-0.3.8
+-----------
+
+This is the 20th release of NuttX. This is a minor bugfix release.
+It corrects a few minor problems, adds a few minor features, and
+continues the integration of the ZiLOG Z18F and of the Pascal P-Code
+add-on. This release is synchronized with the release of Pascal-0.1.2.
+
+This tarball contains a complete CVS snapshot from February 10, 2008.

Documentation/ReleaseNotes/NuttX-0.3.9

@@ -0,0 +1,12 @@
+NuttX-0.3.9
+-----------
+
+This is the 21st release of NuttX. This is a minor future enhancement
+release. This release includes support for the ZiLOG Z8Encore! micro-
+controller. Also included is the initial framework for support for
+the Z80, XTRS platform (http://www.tim-mann.org/xtrs.html).
+
+This released has been verified only on the ZiLOG ZDS-II Z8Encore!
+chip simulation.
+
+This tarball contains a complete CVS snapshot from March 9, 2008.

Documentation/ReleaseNotes/NuttX-0.4.0

@@ -0,0 +1,21 @@
+NuttX-0.4.0
+-----------
+
+This is the 32nd release of NuttX. This release adds graphics
+support and a tiny windowing subsystem. That new graphics subsystem
+is documented at http://nuttx.sourceforge.net/NXGraphicsSubsystem.html.
+No other substantial changes were made.
+
+These changes were verified only on the NuttX simulation platform
+with X11 windows simulating a device framebuffer. Please report any
+errors to me.
+
+The version number was bumped up to 0.4.0 in part to reflect the
+new graphics subsystem, but also to recognize the NuttX is approaching
+complete functionality. In the 0.3.x versions, network support was
+added, Pascal P-code runtime support was added, FAT and ROMFS
+filesystems were added, MMC/SD and USB device support were added.
+There were also numerous extensions to the NuttShell, NuttX APIs,
+and architecture ports.
+
+This tarball contains a complete CVS snapshot from December 6, 2008.

Documentation/ReleaseNotes/NuttX-0.4.1

@@ -0,0 +1,18 @@
+NuttX-0.4.1
+-----------
+
+This is the 33rd release of NuttX. This is a minor bugfix release.
+The primary reason for this release is to correct numerous build
+errors that have accumulated for the ZiLOG ZDS-II based targets.
+All ZDS-II targets now build correctly (but have not been re-tested).
+In addition to platform-specific build failures, this release also
+adds the following features which were not tested as of the time
+of the release:
+
+* Board support for the ZiLog ez80Acclaim! ez80f910200zco Development Kit
+* ZiLOG eZ80F91 EMAC driver
+
+These changes were verified only on the NuttX simulation platform.
+Please report any errors to me.
+
+This tarball contains a complete CVS snapshot from February 6, 2009.

Documentation/ReleaseNotes/NuttX-0.4.10

@@ -0,0 +1,20 @@
+NuttX-0.4.10
+------------
+
+This is the 42nd release of NuttX. This released focused on the
+port of Jeff Poskanzer's THTTPD HTTP server (see
+http://acme.com/software/thttpd/). As of the 0.4.10 release, that
+port is still not fully complete and functional. However, numerous
+related bug-fixes and functional additions for THTTPD were added:
+
+* Several new standard C-library functions (fileno, strstr,
+strpbrk, fcntl).
+* Improved and extended timing APIs (mktime, gmtime, gmtime_r,
+gettimeofday, localtime, localtime_r, and strftime)
+* Networking enhancements: recvfrom() and accept() now work with
+non-blocking sockets.
+* NXFLAT extensions (exec)
+* Pattern matching logic.
+* And miscellaneous bug fixes (see the ChangeLog for details).
+
+This tarball contains a complete CVS snapshot from August 8, 2009.

Documentation/ReleaseNotes/NuttX-0.4.11

@@ -0,0 +1,27 @@
+NuttX-0.4.11
+------------
+
+This is the 43rd release of NuttX. This release of NuttX incorporates
+the verified port of Jeff Poskanzer's THTTPD HTTP server (see
+http://acme.com/software/thttpd/). Many of the key features of
+THTTPD have been tested on the Micromint Eagle-100 development board
+(Cortex-M3). These tests verify:
+
+* Serving of files from any file system
+* Execution of CGI executable. This release supports execution
+of NXFLAT executables on a ROMFS file system
+(https://nuttx.apache.org/docs/latest/components/nxflat.html)
+
+A standard CGI interface is used: Information is pasted to the CGI
+program via POST commands and via environment variables. CGI socket
+I/O is redirected to stdin and stdout so that the CGI program only
+need to printf() to send its content back to the HTTP client.
+
+Another value to this THTTPD integration effort has been that THTTPD
+has provided a very good test bed for finding NuttX networking bugs.
+Several very critical networking bugs have been fixed with this
+0.4.11 release (see the ChangeLog for details). Networking throughput
+has also been greatly improved. Anyone using NuttX networking
+should consider upgrading to this release.
+
+This tarball contains a complete CVS snapshot from September 16, 2009

Documentation/ReleaseNotes/NuttX-0.4.12

@@ -0,0 +1,23 @@
+NuttX-0.4.12
+------------
+
+This is the 44th release of NuttX. This release adds basic support
+for the STMicro STM32, Cortex-M3 MCU. The specific port is to the
+STMicro STM3210E-EVAL development board based around the STM32F103ZET6
+MCU. Some highlights of this port:
+
+* This basic port includes boot-up logic, interrupt driven serial
+console, and system timer interrupts.
+* Includes a basic STMicro RIDE7 project that can be used to
+perform basic STM32 board bring-up (due to RIDE7 size limitations,
+it cannot be used for the full NuttX bring-up).
+* Working, Tested Configurations: the NuttX OS test and the
+NuttShell (NSH) example.
+
+This basic STM32 port will be extended in the 0.4.13 NuttX release.
+Functionality needed for complete STM32 support includes: USB
+device driver, LCD driver and NX bringup on the development board's
+display and MicroSD support. An SPI driver and a DMA support was
+included in this 0.4.12 release, but is not yet tested.
+
+This tarball contains a complete CVS snapshot from October 17, 2009

Documentation/ReleaseNotes/NuttX-0.4.13

@@ -0,0 +1,31 @@
+NuttX-0.4.13
+------------
+
+This is the 45th release of NuttX. The release extends the support
+for the STMicro STM32 microcontroller. Minimal support for the
+STM3210E-EVAL development board based around the STM32F103ZET6 MCU
+was released in NuttX-0.4.12. This release adds:
+
+* A simple interface definition to support some FLASH, EEPROM,
+NVRAM, etc. devices.
+* Verified SPI operation using driver for SPI based FLASH parts
+M25P64 and M25P128.
+* Improved Cortex-M3 context switching. This should improve
+context switching performance be 2x in certain cases.
+* Added a USB device-side driver for the STM32. This is an early
+release of a very complex driver; some bugs are expected.
+* The USB driver has been verified against the USB serial device
+class driver. There is at least one known outstanding issue
+(see the full bug description in the TODO list).
+
+This release also corrects some important bugs in the early STM32 release:
+
+* Fixed several errors the prevented operation of NuttX on an
+STM32 development board using USART2 as the serial console.
+* Fixed and optimization-dependent race condition in the clock
+initialization.
+* Fixed a critical bug in the interrupt control logic that could
+cause interrupt operations to failed used for interrupts in a
+certain range.
+
+This tarball contains a complete CVS snapshot from November 4, 2009

Documentation/ReleaseNotes/NuttX-0.4.2

@@ -0,0 +1,23 @@
+NuttX-0.4.2
+-----------
+
+This is the 34th release of NuttX. This release adds no new OS
+features but does include support for two new architectures:
+
+* ez80Acclaim! Basic support has been integrated and verified
+for the ez80f910200zcog-d board (eZ80F91-based). That basic
+support includes timer interrupts and serial console. Ongoing
+work includes an EMAC driver that should be integrated for the
+next release nuttx-0.4.2. eZ80Acclaim! support has been in the
+code base for some time, but has only just been integrated due
+to toolchain issues.
+
+* Renesas M16C/20. Support for the Renesas SKP16C20 board has
+been included in the NuttX source tree. However, as the
+eZ80Acclaim!, testing and integration of that port is stalled
+due to toolchain issues.
+
+These changes were verified only on the ZiLOG eZ80910200zcog-d
+board. Please report any errors to me.
+
+This tarball contains a complete CVS snapshot from February 28, 2009.

Documentation/ReleaseNotes/NuttX-0.4.3

@@ -0,0 +1,22 @@
+NuttX-0.4.3
+-----------
+
+This is the 35th release of NuttX. This release one important new
+OS feature and corrects and extends the eZ80 port:
+
+* Priority Inheritance. The basic NuttX waiting logic was extended
+to support priority inheritance. See the NuttX User Manual for
+further information:
+http://nuttx.apache.org/docs/latest/reference/user/05_counting_semaphore.html.
+
+* ez80Acclaim! Corrected several critical, show-stopping bugs on that
+platform including:
+- Errors in the serial driver interrupts.
+- An error in the eZ80 table.
+* eZ80Acclaim!: Completed integration of the eZ80F91 EMAC driver.
+
+These changes were verified only on the ZiLOG eZ80910200zcog-d board
+and on Cygwin-based simulation platform in various configurations.
+Please report any errors to me.
+
+This tarball contains a complete CVS snapshot from March 13, 2009.

Documentation/ReleaseNotes/NuttX-0.4.4

@@ -0,0 +1,20 @@
+NuttX-0.4.4
+-----------
+
+This is the 36th release of NuttX. This release focuses on bugfixes
+and extending and verifying certain networking features.
+
+* Important bugs were fixed in NSH, UDP checksum calculation, UDP
+bind() behavior for port==0, the eZ80Acclaim! EMAC driver, Z80
+interrupt handling, and in the C libraries.
+
+* Testing was extended to further verify the tiny webserver,
+DHCPD, wget(), and sendmail.
+
+See the Changelog for a detailed description of these changes.
+
+These changes were verified only on the ZiLOG eZ80910200zcog-d board
+using the ZDS-II toolchain in Cygwin-based environment. Please
+report any errors to me.
+
+This tarball contains a complete CVS snapshot from March 29, 2009.

Documentation/ReleaseNotes/NuttX-0.4.5

@@ -0,0 +1,18 @@
+NuttX-0.4.5
+-----------
+
+This is the 37th release of NuttX. This release focuses on a few new features.
+
+* The basic port for the Freescale ARM920T i.MX1 processor on the
+Freescale MX1ADS board. Coding is complete for this port, but
+it is has not yet fully integrated
+* Extended I2C and SPI interface definitions
+* Add basic support for C++ applications. Very simple C++
+applications can now be built against NuttX without any external
+libraries. At present, only the most primitive C++ programs
+are supported, but it is hoped that this support will be extended
+in future releases.
+
+See the Changelog for a detailed description of these changes.
+
+This tarball contains a complete CVS snapshot from April 19, 2009.

Documentation/ReleaseNotes/NuttX-0.4.6

@@ -0,0 +1,21 @@
+NuttX-0.4.6
+-----------
+
+This is the 38th release of NuttX. The release features support
+for the Micromint Eagle-100 development board. This board is based
+around, the Luminary LM3S6918 MCU. This is the first ARM Cortex-M3
+architecture supported by NuttX. This initial, basic port includes
+timer and serial console with configurations to execute the NuttX
+OS test and to run the NuttShell (NSH). Work is still underway on
+this port and current plans are to have I2C, SSI, MMC/SD, and
+Ethernet driver in the 0.4.7 release.
+
+Additional work was done on the MXADS i.MX1 port, however, that
+work has been set aside until I complete work on the Eagle-100 (I
+also need to come up with a 3V power supply).
+
+Other changes in this release include: Extensions to the SPI interface
+definition in order to handle 9-bit interfaces to displays. Several
+bugs were fixed (see the ChangeLog for a complete list of changes).
+
+This tarball contains a complete CVS snapshot from May 19, 2009.

Documentation/ReleaseNotes/NuttX-0.4.7

@@ -0,0 +1,19 @@
+NuttX-0.4.7
+-----------
+
+This is the 39th release of NuttX. This release focuses on cleaning
+up and extending the Eagle100/LM3S6918 port released in nuttx-0.4.6
+and on improved MMC/SD support. New features include:
+
+* Improved reliably and additional drivers for the Eagle-100 board
+(LM3S6918 ARM Cortex-M3). Additional drivers include Ethernet,
+SSI, and support for the on-board LEDs and microSD cards.
+
+* The SPI-based MMC/SD driver was extended to support SDHC Version
+2.xx cards.
+
+In addition, this release includes several important bugfixes for
+the LM3S6918, the LPC2148, the SPI-based MMC/SD driver, and to
+FAT32. See the ChangeLog for details of these bugfixes.
+
+This tarball contains a complete CVS snapshot from May 29, 2009.

Documentation/ReleaseNotes/NuttX-0.4.8

@@ -0,0 +1,21 @@
+NuttX-0.4.8
+-----------
+
+This is the 40th release of NuttX. This release adds:
+
+* Support for the Olimex STRP711 board. That board is based on
+the STMicro STR711 MCU (ARM7TDMI). Integration is complete on
+the basic port (boot logic, system time, serial console). Two
+configurations have been verified: (1) The board boots and
+passes the OS test with console output visible on UART0, and
+the NuttShell (NSH) is fully functional with interrupt driven
+serial console. An SPI driver is available but untested (because
+the Olimex card slot appears to accept only MMC cards; I have
+only SD cards). Additional needed: USB and driver, MMC
+integration.
+
+* Support for the CodeSourcery and devkitARM Windows-native GNU
+toolchains. Makefiles have been modified for the LM3S6918,
+LPC2148, and STR711 to support these toolchains under Cygwin.
+
+This tarball contains a complete CVS snapshot from June 13, 2009.

Documentation/ReleaseNotes/NuttX-0.4.9

@@ -0,0 +1,13 @@
+NuttX-0.4.9
+-----------
+
+This is the 41st release of NuttX. This release adds:
+
+* Support for a new binary format call NXFLAT that can be used to
+execute separately linked programs in place in a file system.
+See https://nuttx.apache.org/docs/latest/components/nxflat.html.
+
+* Several important bugs were files related to networking and ROMFS.
+See the ChangeLog for a complete list.
+
+This tarball contains a complete CVS snapshot from June 26, 2009.