Re: Assy question

From: Steve Judd (sjudd_at_swcp.com)
Date: 2001-03-15 18:41:38

Hola,

--- Marko_Mäkelä <msmakela@cc.hut.fi> wrote:
> 
> Because the processor decodes the instruction opcode
> while fetching the
> second byte of the instruction.  In the beginning of
> the 2nd cycle, it
> does not know whether it'll be a one-byte
> instruction or not.  This
> greatly simplifies the design, I think.

I thought the 6502 fetched two bytes at a time, and threw away the second
byte for 1-byte instructions.

-S

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