Hello.I downloaded the ARMv6 manual and there are a few things that I don't understand."For an ARM instruction, the value read [from the program counter] is the adress of the instruction plus 8 bytes. Bits [1:0] of this value are always zero, because ARM instructions are always word-aligned."So why it is "the adress + 8"? If the instruction has 4 bytes, it would be the "next next" instruction, wouldn't it?And which bits are the [1:0]? (Could you show me in a manner like this: 11010001b ?)And the phrase right below the previous one:
"For a Thumb instruction set, the value read is the adress of the instruction plus 4 bytes. Bit [0] of this value is always zero, because Thumb instructions are always halfword-aligned."
Again, why "adress plus 4" and what is the "Bit [0]".Thanks for reading.