Answer :
Final answer:
If your application is executing out of FLASH, you cannot use an ADR command to load the value of a label in SRAM because SRAM is greater than 4095 bytes from the program counter. So the correct option is a.
Explanation:
If your application is executing out of FLASH, you cannot use an ADR command to load the value of a label in SRAM because SRAM is greater than 4095 bytes from the program counter. The correct answer to the question is a. Greater.
The ADR command is used to load the address of a label into a register. However, the ADR instruction is limited to a range of ± 4095 bytes relative to the current location of the program counter (PC). This means if the address you want to load into the register is beyond this range, ADR cannot be used and an alternative instruction like LDR may need to be considered.
This limitation is due to the way the ADR encoding allocates bits for the immediate offset. When you are executing from FLASH memory and you want to address variables or data in SRAM, the address difference is typically greater than 4095 bytes because FLASH and SRAM are different memory types usually located at significantly different starting addresses.
