embedded - C code to manipulate AVR processor registries and stack -


is possible, using following c code, modify stack pointer, processor registers etc. in avr microcontroller (like atmega88 etc.)

#define load_sp(sph, spl) (sp = (sph<<8)|spl)  #define load_pc(pc_h, pc_l) { sp_ = sp \     *sp_ = pc_l; \     sp_ = sp_-1; \     *sp_ = pc_h; \     sp_ = sp_-1; \     sp = sp_;    \ }

where sp_ global variable ... unsigned int *sp use these macros original preemptive scheduler, want code. mention overall program builds without errors or warnings, want ask professional advice before uploading on actual hardware.


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