663d8863bb
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5422 42af7a65-404d-4744-a932-0658087f49c3
189 lines
6.1 KiB
Plaintext
189 lines
6.1 KiB
Plaintext
z80sim README
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^^^^^^^^^^^^^
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This port uses a primitive, emulated Z80 and the SDCC toolchain.
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The instruction set emulator can be found in the NuttX SVN at
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http://svn.code.sf.net/p/nuttx/code/trunk/misc/sims/z80sim
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The SDCC toolchain is available from http://sdcc.sourceforge.net/. All
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testing has been performed using version 2.6.0 of the SDCC toolchain.
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Contents
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^^^^^^^^
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o Configuring NuttX
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o Reconfiguring NuttX
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o Reconfiguring for Linux, OSX, or Cygwin
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o SDCC
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o Building the SDCC toolchain
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Configuring NuttX
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^^^^^^^^^^^^^^^^^
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ostest
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This configuration performs a simple, minimal OS test using
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examples/ostest. This can be configurated as follows:
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1) From a POSIX window:
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cd tools
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./configure.sh z80sim/ostest
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2) From a CMD.exe window
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setenv.bat
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NOTES:
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1. This configuration uses the mconf-based configuration tool. See the
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"Reconfiguring" section below for information about changing this
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configuration.
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2. The default setup for this configuration uses a windows native build.
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See the section entitled "Reconfiguring for Linux, OSX, or Cygwin"
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which will give you the steps you would need to do to convert this
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configuration to build in other, Unix-like environments.
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3. This configuration was last verified sucessfully prior to the
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the configure to Kconfig/mconf tool using SDCC 2.6.0 built to run
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natively under Cygwin. The current build requires ca. 3.2.1 SDCC.
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nsh
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This configuration file builds NSH (examples/nsh). This
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configuration is not functional due to issues with use of the
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simulated serial driver (see the TODO list).
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This configuration can be selected by:
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1) From a POSIX window:
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cd tools
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./configure.sh z80sim/nsh
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2) From a CMD.exe window
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setenv.bat
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NOTES:
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1. This configuration uses the mconf-based configuration tool. See the
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"Reconfiguring" section below for information about changing this
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configuration.
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2. The default setup for this configuration uses a windows native build.
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See the section entitled "Reconfiguring for Linux, OSX, or Cygwin"
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which will give you the steps you would need to do to convert this
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configuration to build in other, Unix-like environments.
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3. This configuration was last verified sucessfully prior to the
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the configure to Kconfig/mconf tool using SDCC 2.6.0 built to run
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natively under Cygwin.nsh/defconfig:CONFIG_BOARD_LOOPSPERMSEC
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pashello
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Configures to use examples/pashello for execution from FLASH
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See examples/README.txt for information about pashello.
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This configuration is not usable because the resulting binary
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is too large for the z80 address space.
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This configuration can be selected by:
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1) From a POSIX window:
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cd tools
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./configure.sh z80sim/pashello
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2) From a CMD.exe window
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setenv.bat
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NOTES:
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1. This configuration uses the mconf-based configuration tool. See the
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"Reconfiguring" section below for information about changing this
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configuration.
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2. The default setup for this configuration uses a windows native build.
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See the section entitled "Reconfiguring for Linux, OSX, or Cygwin"
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which will give you the steps you would need to do to convert this
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configuration to build in other, Unix-like environments.
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3. This configuration was last verified sucessfully prior to the
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the configure to Kconfig/mconf tool using SDCC 2.6.0 built to run
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natively under Cygwin.nsh/defconfig:CONFIG_BOARD_LOOPSPERMSEC
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Reconfiguring NuttX
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^^^^^^^^^^^^^^^^^^^
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These configurations all use the kconfig-frontends, mconf-based configuration
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tool. To change this configuration using that tool, you should:
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a. Build and install the mconf tool. See nuttx/README.txt and
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misc/tools/README.txt
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b. Execute 'make menuconfig' in nuttx/ in order to start the reconfiguration
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process.
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Reconfiguring for Linux, OSX, or Cygwin
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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All of the z80 configurations in this this directory are set up to build in a
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Windows CMD.exe shell. This configuration requires the MinGW host compiler
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and severl GNUWin32 tools (see discussion in the top-level NuttX/README.txt
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file).
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These configurations can be converted to run under Linux (or Cygwin or OSX),
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by modifying the configuration file as follows:
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-CONFIG_HOST_WINDOWS=y
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-CONFIG_WINDOWS_NATIVE=y
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+CONFIG_HOST_LINUX=y
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-CONFIG_Z80_TOOLCHAIN_SDCCW=y
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+CONFIG_Z80_TOOLCHAIN_SDCCL=y
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You may need to first manually change the CONFIG_APPS_DIR="..\apps" definition
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in the .config file because the backslash may upset some Unix-based tools.
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This configuration will require a recent version of SDCC (ca. 3.2.1) for Linux
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or custom built for Cygwin (see below).
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You cannot use the default setenv.bat in these Unix-like enviroments because
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that is a Windows batch file. Use configs/z80sim/script/setenv.sh instead.
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setenv.sh must include the path to the installation location of SDCC (probably
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/usr/local/bin).
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SDCC
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^^^^
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These z80 configurations all use the SDCC toolchain (http://sdcc.sourceforge.net/).
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Source and pre-built SDCC binaries can be downloaded from the SDCC SourceForge
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site: http://sourceforge.net/projects/sdcc/files/ . Pre-built binaries are
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available for Linux, MAC OSX, and for Win32. Various SDCC options can be
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selected with:
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CONFIG_Z80_TOOLCHAIN_SDCCL=y : SDCC for Linux, MAC OSX or Cygwin (see below)
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CONFIG_Z80_TOOLCHAIN_SDCCW=y : SDCC for Win32
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SDCC versions 3.2.0 or higher are recommended.
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Building the SDCC toolchain
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^^^^^^^^^^^^^^^^^^^^^^^^^^^
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You may also want to build your own SDCC toolchain. You might want to do this,
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for example, if you are running under Cygwin and want a Cygwin compatible
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SDCC toolchain.
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The SDCC toolchain is built with the standard configure/make/make install
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sequence. However, some special actions are required to generate libraries
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compatible with this build. First start with the usual steps
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download
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unpack
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cd sdcc
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./configure
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Then make the SDCC binaries
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cd sdcc
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make
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and install SDCC:
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sudo make install
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