%default { "store":"str", "shift":"2" } %verify "executed" /* * 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 */ /* 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, #offArrayObject_length] @ 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, #offArrayObject_contents] @ vBB[vCC]<- r2 GOTO_OPCODE(ip) @ jump to next instruction