157 lines
4.4 KiB
Plaintext
157 lines
4.4 KiB
Plaintext
xtrs README
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^^^^^^^^^^^^^
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Current status
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^^^^^^^^^^^^^^
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The xtrs port is not operational yet; some work still needs to be done.
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Contents
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^^^^^^^^
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o Getting a TRS80 emulator and DOS disks
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o Loading an executable into xtrs
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o Configuring NuttX
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o Building the SDCC toolchain
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o SDCC Update
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o Newer SDCC Versions
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Getting a TRS80 emulator and DOS disks
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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This port uses a vintage computer based on the Z80, the TRS80.
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There's a main page describing the different models of TRS80.
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See: http://www.trs-80.com
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An emulator for this computer is available to run TRS80 programs on a
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linux platform (http://www.tim-mann.org/xtrs.html).
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Other emulators are available for other platforms.
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See http://www.trs-80.com, click on the link Emulators.
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TRSDOS, LDOS and other softwares are available at:
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http://discover-net.net/~dmkeil/trs80/software/trs-dos.htm
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Or you can get TRSDOS 1.3 and 6.1 from this site; it's included with the emulator.
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http://discover-net.net/~dmkeil/trs80/model4.htm
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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 2.7.0 of the SDCC toolchain.
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Loading an executable into xtrs
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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At http://www.trs-80.com click on the link: Getting a Software Onto an Emulator.
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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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cd tools
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./configure.sh xtrs/ostest
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cd -
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. ./setenv.sh
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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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cd tools
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./configure.sh xtrs/nsh
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cd -
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. ./setenv.sh
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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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cd tools
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./configure.sh xtrs/pashello
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cd -
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. ./setenv.sh
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Building the SDCC toolchain
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^^^^^^^^^^^^^^^^^^^^^^^^^^^
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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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But before making, we need to apply a patch to the SDCC 2.6.0 source
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so that the z80 assembler can handle long symbol names
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Apply sdcc-2.6.0-asz80-symlen.patch
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cd sdcc/device/lib
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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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SDCC Update
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^^^^^^^^^^^
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I have had some problems building sdcc-2.6.0 on my current UBUNTU
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release (9.10). I had other problems building sdcc-2.9.0 on UBUNTU 9.10.
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I suspect that the newer gcc toolchains are causing problems for these
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older SDCC releases.
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A 20091106 snapshot did build with no major problems on UBUNTU 9.10, but
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has some compatibilty problems with the older SDCC compiler. For one, you
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will need to change the Z80 assember name and options in the Make.defs
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files as follows:
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-AS = as-z80
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+AS = sdasz80
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- @$(AS) $(ASFLAGS) $2 $1
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+ $(AS) $(ASFLAGS) $1
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For another, I had other problems building with that 20091106 that look
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like compiler bugs. If you are using UBUNTU 9.10, you may have to either
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(1) downgrade your GCC compiler to a version 3.x compiler and use one of
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the older stable releases, or (2) wait for the next stable SDCC release
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after 2.9.0.
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Newer SDCC Versions
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^^^^^^^^^^^^^^^^^^^
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This is the text of bug 3468951 reported on the SourceForge website:
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"Some obsolete stuff in z80sim port," (submitted by Philipp Klaus Krause):
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The simz80 port needs a few updates to work well with current sdcc versions,
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and has some unecessary stuff:
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* The linker name for Make.defs should be sdldz80
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* The assembler name for Make.defs should be sdasz80
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* _asm and _endasm in z80_io.c and z80_irq.c should be replaced by __asm
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and __endasm
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* The --stack-auto --int-long-reent --float-reent options or Make.defs should
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be removed, as they have no effect on sdcc's z80 port
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* The current assembler AFAIK can handle long symbol names, so the
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sdcc-2.6.0-asz80-symlen.patch is unnecessary, and it and the corresponding
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section from the README can be removed.
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These changes have not yet been incorporated or verified. |