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    SubjectRe: [PATCH] restore floppy boot image

    Randy.Dunlap wrote:
    > On Wed, 30 Jun 2004 17:52:30 -0400 (EDT) Joshua wrote:
    > | Thanks for the time in reading the patch.
    > |
    > | Hmm. pop %ax after the jmp is a clear bug. Must have been a zero
    > | on the stack when I tested it. <g>
    > |
    > | For the clobbering of al just before kernel entry, that is badly arranged
    > | code although it doesn't matter (mov $0, %al turns out to be no-op).
    > No-op should be some form/variant of xchg %ax,%ax
    > (not mov to %al -- the latter needs to do something.)

    He didn't mean it was a "nop". He meant that the operation had no
    effect because moving zero to a register which already contains zero
    accomplishes nothing.

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