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Re:Should programmers learn machine code? by jacquesm on Sunday September 06, 2009 @04:17PM (#808111)
There is another old series by Leventhal about learning assembler, he basically wrote the same book for many different processors.

And the x86 series reference manuals from Intel, if that's the CPU you're working with (a fair assumption).

Re:Should programmers learn machine code? by dkersten on Monday September 14, 2009 @04:29AM (#821329)
I second the Intel reference manuals - they've been extremely useful on multiple occasions and have been great at helping me understand the x86 processors better.