| ??? 06/13/11 08:33 Read: times |
#182622 - Difference between 8051 "Vectors" and ARM "Vectors" Responding to: ???'s previous message |
Richard Erlacher said:
Does the 805x actually have "vectors" as some microprocessor/microcontrollers have? Andy Neil said:
No, it doesn't. That is, the so-called "Vectors" that the 8051 has are fundamentally different from the "Vectors" in the sense used by some other architectures - particularly ARM and x86 They [in 8051 terminology] are commonly called "vectors" - but they are not vectors in the same sense as used by architectures such as ARM and x86.
In these architectures, the vector points to the location at which execution should start. As you say, the 8051's so-called "vectors" are actually just locations at wich execution will start. For a more detailed discussion of "Vectors" in the ARM sense, see: http://www.keil.com/forum/19073/ |
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