Notes

• When we pass -mmcu=am335x.pru0 to pru-gcc compiler, a macro is defined by the compiler which can be used in the code. Macro is __AM335X_PRU0__. It is set to 1 if pru0 option is passed, and it is undefined if pru1 option is used. It can be used as follows:

#ifdef __AM335X_PRU0__
    #define PRU_NUM 0 
#else
    #define PRU_NUM 1
#endif

Refer: https://github.com/dinuxbg/gnupru/issues/36

Resources that helped a lot

• https://github.com/drifter1/compiler
• http://web.cs.ucla.edu/classes/spring08/cs259/llvm-2.2/docs/WritingAnLLVMBackend.html
• https://babel.ls.fi.upm.es/~pablo/Papers/Toys/C-compiler/intro.html
• https://github.com/anthony-y/toy-compiler
• https://github.com/camilne/toy-compiler
• https://github.com/ehostunreach/toy
• https://aquamentus.com/flex_bison.html
• https://www.youtube.com/playlist?list=PLIrl0f9NJZy4oOOAVPU6MyRdFjJFGtceu
• https://www.jonathanbeard.io/tutorials/FlexBisonC++
• https://gnuu.org/2009/09/18/writing-your-own-toy-compiler/
• https://www.youtube.com/playlist?list=PLkB3phqR3X43IRqPT0t1iBfmT5bvn198Z
• https://medium.com/@ilyarudyak/flex-tutorial-9ed34fd1ff28
• https://www.youtube.com/playlist?list=PLEbnTDJUr_IcPtUXFy2b1sGRPsLFMghhS
• https://www.youtube.com/playlist?list=PLEbnTDJUr_IcPtUXFy2b1sGRPsLFMghhS
• https://ruslanspivak.com/lsbasi-part7/
• https://medium.com/basecs/leveling-up-ones-parsing-game-with-asts-d7a6fc2400ff
• https://github.com/attractivechaos/klib
• https://github.com/rxi/vec