diff options
Diffstat (limited to 'nuttx/configs/z80sim/README.txt')
| -rw-r--r-- | nuttx/configs/z80sim/README.txt | 72 |
1 files changed, 3 insertions, 69 deletions
diff --git a/nuttx/configs/z80sim/README.txt b/nuttx/configs/z80sim/README.txt index c85e236ef..37db83533 100644 --- a/nuttx/configs/z80sim/README.txt +++ b/nuttx/configs/z80sim/README.txt @@ -42,10 +42,7 @@ Configuring NuttX reconfiguration process. 2. The default setup for this configuration uses a windows native build. - As of this writing, the native Windows build still does not work. This - is due to issues in arch/z80/src/Makefile and in the Bash script - arch/z80/src/mkhpbase.sh which, of course, cannot be used in a Windows - CMD.exe shell. These configuration is broken for the time being. + As of this writing, the native Windows build still does not work. This configuration was last verified sucessfully prior to the the configure to Kconfig/mconf tool using SDCC 2.6.0 built to run @@ -104,6 +101,8 @@ 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 ^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -120,12 +119,6 @@ compatible with this build. First start with the usual steps 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 @@ -135,62 +128,3 @@ and install SDCC: sudo make install -SDCC Update -^^^^^^^^^^^ - -I have had some problems building sdcc-2.6.0 on my current UBUNTU -release (9.10). I had other problems building sdcc-2.9.0 on UBUNTU 9.10. -I suspect that the newer gcc toolchains are causing problems for these -older SDCC releases. - -A 20091106 snapshot did build with no major problems on UBUNTU 9.10, but -has some compatibilty problems with the older SDCC compiler. For one, you -will need to change the Z80 assember name and options in the Make.defs -files as follows: - --AS = as-z80 -+AS = sdasz80 - -- @$(AS) $(ASFLAGS) $2 $1 -+ $(AS) $(ASFLAGS) $1 - -For another, I had other problems building with that 20091106 that look -like compiler bugs. If you are using UBUNTU 9.10, you may have to either -(1) downgrade your GCC compiler to a version 3.x compiler and use one of -the older stable releases, or (2) wait for the next stable SDCC release -after 2.9.0. - -See below: If you wish to continue using the older SDCC toolchain, you -must now also add CONFIG_SDCC_OLD=y to your configuration file. - -Newer SDCC Versions -^^^^^^^^^^^^^^^^^^^ - -This is the text of bug 3468951 reported on the SourceForge website: - -"Some obsolete stuff in z80sim port," (submitted by Philipp Klaus Krause): - - The simz80 port needs a few updates to work well with current sdcc versions, - and has some unecessary stuff: - - * The linker name for Make.defs should be sdldz80 - * The assembler name for Make.defs should be sdasz80 - * _asm and _endasm in z80_io.c and z80_irq.c should be replaced by __asm - and __endasm - * The --stack-auto --int-long-reent --float-reent options or Make.defs should - be removed, as they have no effect on sdcc's z80 port - * The current assembler AFAIK can handle long symbol names, so the - sdcc-2.6.0-asz80-symlen.patch is unnecessary, and it and the corresponding - section from the README can be removed. - -These changes *have* been incorporated but only partially verified. In order -to get a successful compilation, I had to copy stdarg.h out of the SDCC source -(at sdcc/device/include/stdarg.h) to include/nuttx/stdarg.h. - -There are also some library related issues when you get to the final build -that I have not looked into yet. - -If you want to back out these change and continue to use the older toolchain -in your build, simpy define the following in your configuration file: - - CONFIG_SDCC_OLD=y |