| %default { "load":"ldr", "shift":"2", "data_offset":"MIRROR_INT_ARRAY_DATA_OFFSET" } | |
| /* | |
| * Array get, 32 bits or less. vAA <- vBB[vCC]. | |
| * | |
| * Note: using the usual FETCH/and/shift stuff, this fits in exactly 17 | |
| * instructions. We use a pair of FETCH_Bs instead. | |
| * | |
| * for: aget, aget-boolean, aget-byte, aget-char, aget-short | |
| * | |
| * NOTE: assumes data offset for arrays is the same for all non-wide types. | |
| * If this changes, specialize. | |
| */ | |
| /* op vAA, vBB, vCC */ | |
| FETCH_B r2, 1, 0 @ r2<- BB | |
| mov r9, rINST, lsr #8 @ r9<- AA | |
| FETCH_B r3, 1, 1 @ r3<- CC | |
| GET_VREG r0, r2 @ r0<- vBB (array object) | |
| GET_VREG r1, r3 @ r1<- vCC (requested index) | |
| cmp r0, #0 @ null array object? | |
| beq common_errNullObject @ yes, bail | |
| ldr r3, [r0, #MIRROR_ARRAY_LENGTH_OFFSET] @ r3<- arrayObj->length | |
| add r0, r0, r1, lsl #$shift @ r0<- arrayObj + index*width | |
| cmp r1, r3 @ compare unsigned index, length | |
| bcs common_errArrayIndex @ index >= length, bail | |
| FETCH_ADVANCE_INST 2 @ advance rPC, load rINST | |
| $load r2, [r0, #$data_offset] @ r2<- vBB[vCC] | |
| GET_INST_OPCODE ip @ extract opcode from rINST | |
| SET_VREG r2, r9 @ vAA<- r2 | |
| GOTO_OPCODE ip @ jump to next instruction |