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  • Selectively disable optimization on macro?
    I have a macro: #define EnterCritical() do { SP++; *(unsigned char idata *)(SP-1) = IE; EA = 0; } while (0); that I call multiple times (along with its complement, ExitCritical()) in a particular...
  • When I select "use on chip ROM" under target options
    I receive a linker error 201 when I select the "use on chip ROM' under options\target. Otherwise the code compiles/links correctly. This device AT89S8253 has both on board flash for code and 2k of on...
  • __asm inline selective disable optimization
    Hi, I'm an mixing assembly with C code using Keil uV 4.6 When I have optimization Level 3 (-O3) turned on, the compiler skips alot of assembly function memory reads & writes. I need every line to be...
  • When should we select the 'RTX kernel' in MDK 'Options for Target'
    If I include some RTX related files like 'RTX_CM4.lib' in MDK project, it seems no difference whether the operating systems 'None' or 'RTX Kernel' is selected. And I can see threads scheduling in 'Event...