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BLR

Branch with Link to Register calls a subroutine at an address in a register, setting register X30 to PC+4.

313029282726252423222120191817161514131211109876543210
1101011000111111000000Rn00000
ZopAMRm

Integer

BLR <Xn>

integer n = UInt(Rn);

Assembler Symbols

<Xn>

Is the 64-bit name of the general-purpose register holding the address to be branched to, encoded in the "Rn" field.

Operation

bits(64) target = X[n];

X[30] = PC[] + 4;

BranchTo(target, BranchType_INDCALL);
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