Branch causes an unconditional branch to a label at a PC-relative offset, with a hint that this is not a subroutine call or return.
| 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 |
| 0 | 0 | 0 | 1 | 0 | 1 | imm26 | |||||||||||||||||||||||||
| op | |||||||||||||||||||||||||||||||
B <label>
BranchType branch_type = if op == '1' then BranchType_DIRCALL else BranchType_DIR; bits(64) offset = SignExtend(imm26:'00', 64);
| <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. |
if branch_type == BranchType_DIRCALL then if IsInC64() then if CCTLR[].SBL == '1' then C[30] = CapSetObjectType(CapAdd(PCC[], 5), CAP_SEAL_TYPE_RB); else C[30] = CapAdd(PCC[], 5); elsif CCTLR[].PCCBO == '1' then X[30] = PC[] + 4 - CapGetBase(PCC[]); else X[30] = PC[] + 4; BranchToOffset(offset, branch_type);
Internal version only: isa v32.13, AdvSIMD v29.04, pseudocode morello-2022-01_rc2, capabilities morello-2022-01_rc2 ; Build timestamp: 2022-01-11T11:23
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