<\/p>\n
On my neverending quest to have a powerful cross compiler for m68k Classic Amiga (i.e. OS <= 3.x) for my Mac I had a closer look on the fresh new release of Volker Barthelmann’s C Compiler.<\/p>\n
In this post I’ll describe how to install this nice piece of code on your machine in a few easy steps!
\n<\/p>\n
First we build the cross assembler to assemble the output of vbcc.<\/p>\n
Download the source code from the above link. Now extract it:<\/p>\n
tar xvfz vasm.tar.gz\r\ncd vasm\r\n<\/pre>\nBuild the binary with:<\/p>\n
make CPU=m68k SYNTAX=mot<\/pre>\nFinally install with (note we use \/opt\/vbcc<\/strong> as the location for all this):<\/p>\n
mkdir -p \/opt\/vbcc\/bin\r\ncp vasmm68k_std vasmm68k_mot vobjdump \/opt\/vbcc\/bin\r\n<\/pre>\nOk, the assembler is ready!<\/p>\n
2. vlink 0.14<\/h3>\n
vlink’s homepage and the source can also be found on Frank Wille’s site:<\/p>\n
\n
- http:\/\/sun.hasenbraten.de\/vlink\/<\/a><\/li>\n
- http:\/\/sun.hasenbraten.de\/vlink\/release\/vlink.tar.gz<\/a><\/li>\n<\/ul>\n
Same game here: download source and untarring:<\/p>\n
tar xvfz vlink.tar.gz\r\ncd vlink<\/pre>\nBuild:<\/p>\n
mkdir objects\r\nmake<\/pre>\nInstall:<\/p>\n
mkdir -p \/opt\/vbcc\/bin\r\ncp vlink \/opt\/vbcc\/bin<\/pre>\nDone!<\/p>\n
3. vbcc 0.9b<\/h3>\n
Finally, the compiler itself:<\/p>\n
\n
- http:\/\/www.compilers.de\/vbcc.html<\/a><\/li>\n
- http:\/\/www.ibaug.de\/vbcc\/vbcc.tar.gz<\/a><\/li>\n<\/ul>\n
Pepare:<\/p>\n
tar xvfz vbcc.tar.gz\r\ncd vbcc<\/pre>\nI removed the -DHAVE_AOS4 in the Makefile just to be sure.<\/p>\n
Build:<\/p>\n
mkdir bin\r\nmake TARGET=m68k\r\nmake TARGET=m68ks<\/pre>\nInstall:<\/p>\n
cp bin\/vbcc* bin\/vc bin\/vprof \/opt\/vbcc\/bin<\/pre>\nThe compiler is in place now…<\/p>\n
4. Target Environment<\/h3>\n
A cross compiler needs a target environment. This includes the system headers and libraries here for the m68k Amiga platform. Also the implementation for the c standard library (think of printf…) are required for the target.<\/p>\n
Here I only install the amiga m68k target but vbcc supports also other targets. See the following homepage for more details:<\/p>\n
\n
- http:\/\/sun.hasenbraten.de\/vbcc\/<\/a><\/li>\n
- http:\/\/mail.pb-owl.de\/~frank\/vbcc\/2011-08-05\/vbcc_target_m68k-amigaos.lha<\/a><\/li>\n
- http:\/\/mail.pb-owl.de\/~frank\/vbcc\/2011-08-05\/vbcc_unix_config.zip<\/a><\/li>\n<\/ul>\n
Download the given archives, one for the m68k target the other for the vbcc descriptions how to run the compiler on a unix-like operating system.<\/p>\n
Unzip the archives (If you don’t have lha on your machine. Have a look in MacPorts<\/a>!):<\/p>\n
lha x vbcc_target_m68k-amigaos.lha\r\nunzip vbcc_unix_config.zip<\/pre>\nNow install the files into our destination directory:<\/p>\n
export VBCC=\/opt\/vbcc\r\nmv config $VBCC\/\r\nmv vbcc_target_m68k-amigaos\/targets $VBCC\/<\/pre>\nDone! Now all components are in place and we are ready for our first compile…<\/p>\n
5. First Test<\/h3>\n
Ok, for the first test, a simple hello world is fine (file hello.c):<\/p>\n
#include <stdio.h>\r\nint main(int argc, char **argv)\r\n{\r\n printf(\"hello, world!\\n\");\r\n return 0;\r\n}<\/pre>\nTo compile make sure you have the environment variable VBCC set to the install directory and tha PATH holds the bin directory there:<\/p>\n
export VBCC=\/opt\/vbcc\r\nexport PATH=$VBCC\/bin:$PATH<\/pre>\nThe compiler always needs the target platform specified with the + switch:<\/p>\n
cv +aos68k -o hello hello.c<\/pre>\nIf all went well you have created a Amiga OS LoadSeg’able binary called hello:<\/p>\n
> file hello\r\nhello: AmigaOS loadseg()ble executable\/binary<\/pre>\nNow launch your favorite amiga emulator (e.g. P-UAE) and give it a try!<\/p>\n
More information on the compiler and its options can be found in the documentation on the official home page of Volker:<\/p>\n
\n
- vbcc Manual<\/a><\/li>\n<\/ul>\n
6. Amiga OS Development<\/h3>\n
If you want to use the Amiga Libraries in your Programs you will need the OS headers and libraries from a NDK. For the last OS 3.9 you can download it here: NDK 3.9<\/a>. Simply untar the contents somewhere and define the following environment variables:<\/p>\n
export NDK=\/path\/to\/NDK_3.9\r\nexport NDK_INC=$NDK\/include\/include_h\r\nexport NDK_LIB=$NDK\/linker_libs<\/pre>\nNow a typical compile line looks like:<\/p>\n
vc +aos68k -I$NDK_INC -L$NDK_LIB -o test test.c -lamiga<\/pre>\nUse this to compile a sample taken from the NDK:<\/p>\n
cd $NDK\/Tutorials\/ARexx\/Host\r\nvc +aos68k -I$NDK_INC -L$NDK_LIB RexxShell.c -lamiga<\/pre>\nYou can compare your compile (a.out) with the official binary:<\/p>\n
> ls -la RexxShell a.out\r\n-rwxr-xr-x\u00c2\u00a0 1 chris\u00c2\u00a0 staff\u00c2\u00a0 6652\u00c2\u00a0 1 Nov\u00c2\u00a0 1999 RexxShell*\r\n-rwxr-xr-x\u00c2\u00a0 1 chris\u00c2\u00a0 staff\u00c2\u00a0 5988 18 Aug 20:38 a.out*<\/pre>\nQuite nice small result! Now head on to some own code and enjoy your new compiler!<\/p>\n","protected":false},"excerpt":{"rendered":"
On my neverending quest to have a powerful cross compiler for m68k Classic Amiga (i.e. OS <= 3.x) for my Mac I had a closer look on the fresh new release of Volker Barthelmann’s C Compiler. In this post … Continue reading