parser: simplify code by keeping a pointer to the current operand
parser: simplify code by keeping a pointer to the current operand

There is an awful lot of syntax-heavy "result->oprs[operand]" going
on; simplify by making a pointer to the current operand.

Signed-off-by: H. Peter Anvin <8a453bad9912ffe59bc0f0b8abe03df9be19379e@linux.intel.com>
Signed-off-by: Jin Kyu Song <636a629b48a15ad840070a3dd8c6df980563dd68@intel.com>

projedi/nasm,projedi/nasm,techkey/nasm,projedi/nasm,projedi/nasm,techkey/nasm,techkey/nasm,projedi/nasm,techkey/nasm,techkey/nasm