%default { "store":"str", "shift":"2", "data_offset":"MIRROR_INT_ARRAY_DATA_OFFSET" } /* * Array put, 32 bits or less. vBB[vCC] <- vAA. * * Note: using the usual FETCH/and/shift stuff, this fits in exactly 17 * instructions. We use a pair of FETCH_Bs instead. * * for: aput, aput-boolean, aput-byte, aput-char, aput-short * * NOTE: this 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 GET_VREG r2, r9 @ r2<- vAA GET_INST_OPCODE ip @ extract opcode from rINST $store r2, [r0, #$data_offset] @ vBB[vCC]<- r2 GOTO_OPCODE ip @ jump to next instruction