On Wed, 6 Jan 2010, loody wrote: > I try to > "or %0, count\n", where count is $a1. > so I write %1 as count and write > "or %0, %1\n" and assign %1 as count in input section. > > But the result is not what I expect. > the result is " or v1,v1,v0" > Did I miss something or the only way to meet what I need is directly write > "or %0, $a1\n"? As you can figure out from the semantics: or v1, v0 is a shorthand for: or v1, v1, v0 There is no two-argument register OR instruction in the standard MIPS instruction set (nor there is a need for one). Maciej
