nuttx/configs/z80sim
patacongo 0e4924079a Clean operations are now toolchain specific
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@542 42af7a65-404d-4744-a932-0658087f49c3
2008-01-10 13:38:13 +00:00
..
include Debug NSH on z80sim 2007-12-31 23:52:53 +00:00
src Clean operations are now toolchain specific 2008-01-10 13:38:13 +00:00
defconfig Adding support for the z16f 2008-01-07 23:13:12 +00:00
Make.defs Clean operations are now toolchain specific 2008-01-10 13:38:13 +00:00
nshconfig Add configuration for toolchains without libm 2008-01-06 20:46:45 +00:00
README.txt update 2008-01-02 14:17:02 +00:00
sdcc-2.6.0-asz80-symlen.patch More SDCC compilation fixes 2007-12-30 23:34:20 +00:00
setenv.sh Adding support for the z16f 2008-01-07 23:13:12 +00:00

z80sim README
^^^^^^^^^^^^^

This port uses a primitive, emulated Z80 and the SDCC toolchain.
The instruction set emulator can be found in the NuttX CVS at
http://nuttx.cvs.sourceforge.net/nuttx/misc/sims/z80sim

The SDCC toolchain is available from http://sdcc.sourceforge.net/.  All
testing has been performed using verison 2.6.0 of the SDDC toolchain.

Configuring NuttX
^^^^^^^^^^^^^^^^^

  defconfig
    The default configuration file, defconfig, performs a simple,
    minimal OS test using examples/ostest.  This can be
    configurated as follows:

	cd tools
	./configure.sh z80sim
	cd -
	. ./setenv.sh


  nshconfig
    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 alternative configuration can be selected by:

	(Seleted the default configuration as show above)
	cp config/z80sim/nshconfig .config


Building the 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

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

  Apply sdcc-2.6.0-asz80-symlen.patch
  cd sdcc/device/lib

Then make the SDCC binaries

  cd sdcc
  make

and install SDCC:

  sudo make install