On Wed, 30 Mar 2005, H. J. Lu wrote:
On Wed, Mar 30, 2005 at 07:57:28AM -0800, Linus Torvalds wrote:
There is no such an instruction of "movl %ds,(%eax)". The old assembler accepts it and turns it into "movw %ds,(%eax)".
I disagree. Violently. As does the old assembler, which does not turn "mov" into "movw" as you say. AT ALL.
I should have made myself clear. By "movw %ds,(%eax)", I meant:
8c 18 movw %ds,(%eax)
That is what the assembler generates, and should have generated, for "movw %ds,(%eax)" since Nov. 4, 2004.
Could this be the reason for the reported slowdown in the last six months?
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