Add the ability to build for SH4.
Define the needed macros for SH4
Use the same atomic operation for ARM and SH4
Hack: only compile with -Werror in debug mode (some optimizations add
warnings).
Do not warn for functions that do not return anything (will be re-enabled later on).
First sh4 specific directory
Add the sh4 assembler.
sh4: declare the registers and implement some functions.
sh4: Implement the first runned functions.
Fix compilation after upgrade.
sh4: implement some function and fix a really annoying crash.
Implement some more functions
Implement add and pop.
Use SH4_TARGET_ROOT instead of SH4_TARGET_LIB (better naming).
sh4: implement some functions the same way as for arm and ia32 (the code is exactly the same for both).
sh4: implement some more part of the assembler.
sh4: implement some generic functions.
Fix compilation due to the last update.
sh4: use specific atomic operations.
sh4: fix the number of floating point registers (and doubles).