BR Branch to register This instruction branches unconditionally to an address in a register. This instruction provides a hint that this is not a subroutine call or return. 1 1 0 1 0 1 1 0 0 0 0 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 BR <Xn> let n : integer{} = UInt(Rn); <Xn> Is the 64-bit name of the general-purpose register holding the address to be branched to, encoded in the "Rn" field. let target : bits(64) = X{}(n); // Value in BTypeNext will be used to set PSTATE.BTYPE if InGuardedPage then if n == 16 || n == 17 then BTypeNext = '01'; else BTypeNext = '11'; end; else BTypeNext = '01'; end; let branch_conditional : boolean = FALSE; BranchTo{64}(target, BranchType_INDIR, branch_conditional); 2026-03-26 20:27:25 2026-03_rel