ISA_v82A_A64_xml_00bet3.2 (old) | htmldiff from-ISA_v82A_A64_xml_00bet3.2 | (new) ISA_v82A_A64_xml_00bet3.2_OPT |
Branch with Link to Register calls a subroutine at an address in a register, setting register X30 to PC+4.
31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
1 | 1 | 0 | 1 | 0 | 1 | 1 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | Rn | 0 | 0 | 0 | 0 | 0 | ||||
op |
integer n = UInt(Rn);BranchType branch_type;
case op of
when '00' branch_type = BranchType_JMP;
when '01' branch_type = BranchType_CALL;
when '10' branch_type = BranchType_RET;
otherwise UnallocatedEncoding();
bits(64) target = X[n];[n];
if branch_type ==
BranchType_CALL then X[30] = PC[] + 4;
BranchTo(target, BranchType_CALL);(target, branch_type);
Internal version only: isa v25.07, AdvSIMD v23.0, pseudocode v31.3
Copyright © 2010-2017 ARM Limited or its affiliates. All rights reserved. This document is Non-Confidential.
ISA_v82A_A64_xml_00bet3.2 (old) | htmldiff from-ISA_v82A_A64_xml_00bet3.2 | (new) ISA_v82A_A64_xml_00bet3.2_OPT |