FLASH- RAM Speed+
When a variable in RAM is traditionally addressed, the variable content could not lie in more than one PIC RAM bank. Therefore, when a pointer value to a variable is calculated the higher byte of the pointer is never changed and the calculation can be done only on the lower byte.
|
uns8 indexAtBufferINFO; ... FSR0 += indexAtBufferINFO; |
uns8 indexAtBufferINFO; ... FSR0L += indexAtBufferINFO; |
Note: The above code might not work when Linear data memory (0x2‑‑‑) or Program memory (0x8‑‑‑‑ … 0xFFFF) is indirectly addressed. It always works with the Traditional data addressing (0x0‑‑‑) only.
Please note that when a constant value (from -32 to +31) is added to an FRSx register, then the calculation should be always done with the whole register as the optimal PIC ADDFSR instruction is generated.
|
setFSR0( _FSR_INFO ); FSR0 += 12; |