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GCC4TI is a complete and mature GPL SDK for the TI-89, TI-89T, TI-92+ and TI-V200 (collectively known as TI-68k) calculators in the C and ASM languages. https://github.com/debrouxl/gcc4ti
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Building and installing GCC4TI from Git: ======================================== * After cloning the repository, building and installing GCC4TI is a matter of executing the "updatesrc" script located in the trunk/tigcc-linux/scripts folder, and then executing the install script: $ cd trunk/tigcc-linux/scripts $ ./updatesrc (abort now and create a ticket if errors mentioning e.g. cp, rm, tar appear during the execution of updatesrc) $ cd ../gcc4ti-0.96b11 $ scripts/Install Caution: the Win32 cross-build of the patched GCC 4.1.2 under Linux is known to yield a working GCC executable under Debian 7 "Wheezy" (GCC 4.6), but a broken GCC executable under Debian 8 "Jessie" (GCC 4.9) - floating-point values generated by the compiler are simply wrong. However, the native Linux build of the _same_ patched GCC 4.1.2, under Debian Jessie and April 2016 Sid / Stretch, yields an executable which generates the correct floating-point values. Seems like the 10+-year-old (pre-GCC4TI) code of the GCC patch is broken in (at least) one more way. * You may also want to build a tarball that you can transfer to another computer and install later. It's the "gcc4ti_src.tar.bz2" file mentioned in the trunk/tigcc-linux/INSTALL file: $ cd trunk/tigcc-linux/scripts $ ./updatesrc $ ./package_src Then, on the target computer, you can proceed as described in the trunk/tigcc-linux/INSTALL file, which is, basically: * copy, or symlink, to the build directory, the files whose path in the GCC4TI repository is: pool/b/binutils-2.16.1.tar.bz2 pool/g/gcc-core-4.1.2.tar.bz2 * run scripts/Install