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Pulpit rock
BL

Branch with Link branches to a PC-relative offset, setting the register X30 to PC+4. It provides a hint that this is a subroutine call.

313029282726252423222120191817161514131211109876543210
100101imm26
op

BL <label>

BranchType branch_type = if op == '1' then BranchType_DIRCALL else BranchType_DIR; bits(64) offset = SignExtend(imm26:'00', 64);

Assembler Symbols

<label>

Is the program label to be unconditionally branched to. Its offset from the address of this instruction, in the range +/-128MB, is encoded as "imm26" times 4.

Operation

if branch_type == BranchType_DIRCALL then X[30] = PC[] + 4; boolean branch_conditional = FALSE; BranchTo(PC[] + offset, branch_type, branch_conditional);


Internal version only: isa v33.11seprel, AdvSIMD v29.05, pseudocode v2021-09_rel, sve v2021-09_rc3d ; Build timestamp: 2021-10-06T11:41

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