i386 assembly timing issue

I've attached two slightly different bits of i386 assembly that achieve the same end, but in slightly different ways. Can some one tell me why Case 1 is faster than Case 2? Case 1 involves an extra CALL instruction. * Case 1 has a little wrapper function that saves ECX and EDX before

i386 assembly timing issue

I've attached two slightly different bits of i386 assembly that achieve the same end, but in slightly different ways. Can some one tell me why Case 1 is faster than Case 2? Case 1 involves an extra CALL instruction. * Case 1 has a little wrapper function that saves ECX and EDX before