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+# libJPEG v9d sources for Casio Graph 90+E and Prizm CG10/20
+
+Need to have a fully working gcc toolchain for SH3/SH4 architecture.
+
+Compilation is done by using the adhoc Makefile :
+`make -f Makefile.prizm` in the main directory
+
+It should produce the library libcJPG.a
+
+The following steps are not automatically done, so please proceed with the following manipulations :
+* copy the library libcJPG.a into your SH3/SH4 compiler lib folder
+* copy header files (`jpeglib.h`, `jconfig.h`, `jmorecfg.h` and `jerror.h` ) contained in the folder into the include folder of the SH3/SH4 compiler
+
+
+when you compile a program for use with libJPG, do not forget to add a `-lcJPG` option in your compilator command line.
+
+and then a `#include <jpeglib.h>` (you may also add `#include <jerror.h>`) in your C/C++ sources.
+