ISR_NAKED in Timer ISR
ISR_NAKED tells the compiler, "Don't add your own register saving code" ISR(TIMER1_COMPA_vect, ISR_NAKED) This is critcal if you're using your own save/restore code because if the compiler adds its o
May 12, 20261 min read
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Series
Custom RTOS in C
This series is about what I'm learning while building an RTOS in C.
Prologue & Epilogue
When you write a function, the compiler secretly inject setup code before your first line runs(prologue) and cleanup code before it returns (epilogue). You never see it, it lives in the generated asse
May 12, 20261 min read1Macro in C
What is a macro? A macro is a text replacement rule defined with #define that swaps names for text before the compiler runs. For Example: #define PI 3.14159 Every time you write "PI" in your code, th
May 7, 20261 min read