%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 w2, 1, 0 // w2<- BB | |
lsr w9, wINST, #8 // w9<- AA | |
FETCH_B w3, 1, 1 // w3<- CC | |
GET_VREG w0, w2 // w0<- vBB (array object) | |
GET_VREG w1, w3 // w1<- vCC (requested index) | |
cbz w0, common_errNullObject // bail if null | |
ldr w3, [x0, #MIRROR_ARRAY_LENGTH_OFFSET] // w3<- arrayObj->length | |
add x0, x0, w1, lsl #$shift // w0<- arrayObj + index*width | |
cmp w1, w3 // compare unsigned index, length | |
bcs common_errArrayIndex // index >= length, bail | |
FETCH_ADVANCE_INST 2 // advance rPC, load rINST | |
GET_VREG w2, w9 // w2<- vAA | |
GET_INST_OPCODE ip // extract opcode from rINST | |
$store w2, [x0, #$data_offset] // vBB[vCC]<- w2 | |
GOTO_OPCODE ip // jump to next instruction |