;Local Register Instructions 
;TA
;二、ld_field instructions_________________________________________________________________
immed_w1[src_op,0x1122]
immed_w0[src_op,0x3344]
immed_w1[dest_op1,0xAABB]
immed_w0[dest_op1,0xCCDD]
;Example 1: ld_field
;If dest_op1 = 0xAABBCCDD and src_op = 0x11223344, then
//ld_field_w_clr[dest_op1,0001,src_op]
ld_field[dest_op1, 0101, src_op,<<2];    dest_op1 = AA22CC44.


;Example 2: ld_field_w_clr
;If dest_op2 = 0xAABBCCDD and src_op = 0x11223344, then 
ld_field_w_clr[dest_op2,0101,src_op]; dest_op2 = 00220044
self#:
br[self#]