c# - In CIL, why is BGE equal to CLT.UN followed by BRFALSE? -

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in cli specifications (ecma-335, page 329), , on msdn, stated cil opcode bge equivalent performing clt.un followed brfalse.

this baffles me. don't understand why equivalent unordered clt.un, , not regular clt. considering there bge.un, not state equivalent set of instructions. whould have expected bge equivalent [clt, brfalse], , bge.un equivalent [clt.un, brfalse].

is error in specifications or missing something?

that pdf states:

the effect of bge target instruction identical to:

  • if stack operands integers, clt followed brfalse target
  • if stack operands floating-point, clt.un followed brfalse target

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