170     uint16_t inst1;  member
173     uint32_t inst1;
375 …     .inst1 = 0xa100,                                                             // add r1, pc, #0  in irq_add_shared_handler()
379 ….inst1 = make_jal_t0_32(&slot->inst1, irq_handler_chain_first_slot),         // jal t0, irq_handle…  in irq_add_shared_handler()
402 …             .inst1 = 0x4801,                                                   // ldr r0, [pc, #4]  in irq_add_shared_handler()
406 …         .inst1 = make_call_inst1(handler),                                 // lui ra, %hi(handler)  in irq_add_shared_handler()
423 …       .inst1 = 0xa100,                                                           // add r1, pc, #0  in irq_add_shared_handler()
427 ….inst1 = make_jal_t0_32(&slot->inst1, irq_handler_chain_first_slot),       // jal t0, irq_handler_…  in irq_add_shared_handler()
437             existing_vtable_slot->inst1 = 0x4801; // ldr r0, [pc, #4]  in irq_add_shared_handler()
442             existing_vtable_slot->inst1 = make_call_inst1(handler_of_existing_head);  in irq_add_shared_handler()
457     if (slot->inst1 & 0x8u) {  in handler_from_slot()
463             ((slot->inst1 >> 12) << 12) + (uint32_t)((int32_t)slot->inst2 >> 20)  in handler_from_slot()
524                         to_free_slot->inst1 = make_call_inst1(handler_of_next_slot);  in irq_remove_handler()