xtrs README
^^^^^^^^^^^^^
Current status
^^^^^^^^^^^^^^
The xtrs port is not operational yet; some work still needs to be done.
Contents
^^^^^^^^
o Getting a TRS80 emulator and DOS disks
o Loading an executable into xtrs
o Configuring NuttX
o Reconfiguring NuttX
o Reconfiguring for Linux, OSX, or Cygwin
o SDCC
o Building the SDCC toolchain
Getting a TRS80 emulator and DOS disks
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
This port uses a vintage computer based on the Z80, the TRS80.
There's a main page describing the different models of TRS80.
See: http://www.trs-80.com
An emulator for this computer is available to run TRS80 programs on a
linux platform (http://www.tim-mann.org/xtrs.html).
Other emulators are available for other platforms.
See http://www.trs-80.com, click on the link Emulators.
TRSDOS, LDOS and other softwares are available at:
http://discover-net.net/~dmkeil/trs80/software/trs-dos.htm
Or you can get TRSDOS 1.3 and 6.1 from this site; it's included with the emulator.
http://discover-net.net/~dmkeil/trs80/model4.htm
The SDCC toolchain is available from http://sdcc.sourceforge.net/. All
testing has been performed using version 2.7.0 of the SDCC toolchain.
Loading an executable into xtrs
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
At http://www.trs-80.com click on the link: Getting a Software Onto an Emulator.
Configuring NuttX
^^^^^^^^^^^^^^^^^
ostest
This configuration performs a simple, minimal OS test using
examples/ostest. This can be configurated as follows:
1) From a POSIX window:
cd tools
./configure.sh xtrs/ostest
2) Modify your PATH environment variable to include the path to the
SDCC toolchain.
3) From a CMD.exe window
make
If this is a Windows native build, then configure.bat should be used
in step 1) instead of configure.sh:
configure.bat xtrs\ostest
NOTES:
1. This configuration uses the mconf-based configuration tool. See the
"Reconfiguring" section below for information about changing this
configuration.
2. The default setup for this configuration uses a windows native build.
See the section entitled "Reconfiguring for Linux, OSX, or Cygwin"
which will give you the steps you would need to do to convert this
configuration to build in other, Unix-like environments.
3. The current build requires ca. 3.2.1 SDCC.
nsh
This configuration file builds NSH (examples/nsh). This
configuration is not functional due to issues with use of the
simulated serial driver (see the TODO list).
This configuration can be selected by:
1) From a POSIX window:
cd tools
./configure.sh xtrs/nsh
2) Modify your PATH environment variable to include the path to the
SDCC toolchain.
3) From a CMD.exe window
make
If this is a Windows native build, then configure.bat should be used
in step 1) instead of configure.sh:
configure.bat xtrs\nsh
NOTES:
1. This configuration uses the mconf-based configuration tool. See the
"Reconfiguring" section below for information about changing this
configuration.
2. The default setup for this configuration uses a windows native build.
See the section entitled "Reconfiguring for Linux, OSX, or Cygwin"
which will give you the steps you would need to do to convert this
configuration to build in other, Unix-like environments.
3. The current build requires ca. 3.2.1 SDCC.
4. This configuration depends on configs/xtrs/src/xtrs_serial.c which
is incomplete. At compile time, the following symbols are undefined:
ctrl, baud, rs232_xmtisr, rs232_recvisr, ch
pashello
Configures to use examples/pashello for execution from FLASH
See examples/README.txt for information about pashello.
This configuration is not usable because the resulting binary
is too large for the z80 address space.
This configuration can be selected by:
1) From a POSIX window:
cd tools
./configure.sh xtrs/pashello
2) Modify your PATH environment variable to include the path to the
SDCC toolchain.
3) From a CMD.exe window
make
If this is a Windows native build, then configure.bat should be used
in step 1) instead of configure.sh:
configure.bat xtrs\pashello
NOTES:
1. This configuration uses the mconf-based configuration tool. See the
"Reconfiguring" section below for information about changing this
configuration.
2. The default setup for this configuration uses a windows native build.
See the section entitled "Reconfiguring for Linux, OSX, or Cygwin"
which will give you the steps you would need to do to convert this
configuration to build in other, Unix-like environments.
3. The current build requires ca. 3.2.1 SDCC.
Reconfiguring NuttX
^^^^^^^^^^^^^^^^^^^
These configurations all use the kconfig-frontends, mconf-based configuration
tool. To change this configuration using that tool, you should:
a. Build and install the kconfig-mconf tool. See nuttx/README.txt and
additional README.txt files in the NuttX tools repository.
b. Execute 'make menuconfig' in nuttx/ in order to start the reconfiguration
process.
Reconfiguring for Linux, OSX, or Cygwin
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
All of the z80 configurations in this this directory are set up to build in a
Windows CMD.exe shell. This configuration requires the MinGW host compiler
and severl GNUWin32 tools (see discussion in the top-level NuttX/README.txt
file).
These configurations can be converted to run under Linux (or Cygwin or OSX),
by modifying the configuration file as follows:
-CONFIG_HOST_WINDOWS=y
-CONFIG_WINDOWS_NATIVE=y
+CONFIG_HOST_LINUX=y
-CONFIG_Z80_TOOLCHAIN_SDCCW=y
+CONFIG_Z80_TOOLCHAIN_SDCCL=y
You may need to first manually change the CONFIG_APPS_DIR="..\apps" definition
in the .config file because the backslash may upset some Unix-based tools.
This configuration will require a recent version of SDCC (ca. 3.2.1) for Linux
or custom built for Cygwin (see below).
SDCC
^^^^
These z80 configurations all use the SDCC toolchain (http://sdcc.sourceforge.net/).
Source and pre-built SDCC binaries can be downloaded from the SDCC SourceForge
site: http://sourceforge.net/projects/sdcc/files/ . Pre-built binaries are
available for Linux, MAC OSX, and for Win32. Various SDCC options can be
selected with:
CONFIG_Z80_TOOLCHAIN_SDCCL=y : SDCC for Linux, MAC OSX or Cygwin (see below)
CONFIG_Z80_TOOLCHAIN_SDCCW=y : SDCC for Win32
SDCC versions 3.2.0 or higher are recommended.
Building the SDCC toolchain
^^^^^^^^^^^^^^^^^^^^^^^^^^^
You may also want to build your own SDCC toolchain. You might want to do this,
for example, if you are running under Cygwin and want a Cygwin compatible
SDCC toolchain.
The SDCC toolchain is built with the standard configure/make/make install
sequence. However, some special actions are required to generate libraries
compatible with this build. First start with the usual steps
download
unpack
cd sdcc
./configure
Note if you do not have the gputils packet installed, newer version of the
SDCC configure will fail. You will have to either install the gputils
package or if you don't need PIC14 or PIC16 support:
./configure --disable-pic14-port --disable-pic16-port
But before making, we need to apply a patch to the SDCC 2.6.0 source
so that the z80 assembler can handle long symbol names. This is not
needed with later versions.
Apply sdcc-2.6.0-asz80-symlen.patch
cd sdcc/device/lib
Then make the SDCC binaries
make
and install SDCC:
sudo make install
