| /* | |
| * Check to see if an object reference is an instance of a class. | |
| * | |
| * Most common situation is a non-null object, being compared against | |
| * an already-resolved class. | |
| */ | |
| /* instance-of vA, vB, class@CCCC */ | |
| EXPORT_PC | |
| FETCH r0, 1 @ r0<- CCCC | |
| mov r1, rINST, lsr #12 @ r1<- B | |
| VREG_INDEX_TO_ADDR r1, r1 @ r1<- &object | |
| ldr r2, [rFP, #OFF_FP_METHOD] @ r2<- method | |
| mov r3, rSELF @ r3<- self | |
| mov r9, rINST, lsr #8 @ r9<- A+ | |
| and r9, r9, #15 @ r9<- A | |
| bl MterpInstanceOf @ (index, &obj, method, self) | |
| ldr r1, [rSELF, #THREAD_EXCEPTION_OFFSET] | |
| PREFETCH_INST 2 | |
| cmp r1, #0 @ exception pending? | |
| bne MterpException | |
| ADVANCE 2 @ advance rPC | |
| SET_VREG r0, r9 @ vA<- r0 | |
| GET_INST_OPCODE ip @ extract opcode from rINST | |
| GOTO_OPCODE ip @ jump to next instruction |