| %def op_array_length(): | |
| /* | |
| * Return the length of an array. | |
| */ | |
| lsr w1, wINST, #12 // w1<- B | |
| ubfx w2, wINST, #8, #4 // w2<- A | |
| GET_VREG w0, w1 // w0<- vB (object ref) | |
| cbz w0, common_errNullObject // yup, fail | |
| FETCH_ADVANCE_INST 1 // advance rPC, load rINST | |
| ldr w3, [x0, #MIRROR_ARRAY_LENGTH_OFFSET] // w3<- array length | |
| GET_INST_OPCODE ip // extract opcode from rINST | |
| SET_VREG w3, w2 // vB<- length | |
| GOTO_OPCODE ip // jump to next instruction |