Branch and Call Operators
BRUN — Branch unconditional (offset given by following code syllables)
DBUN — Dynamic branch unconditional (offset given in top of stack)
BRFL — Branch if last result false (offset given by following code syllables)
DBFL — Dynamic branch if last result false (offset given in top of stack)
BRTR — Branch if last result true (offset given by following code syllables)
DBTR — Dynamic branch if last result true (offset given in top of stack)
EXIT — Exit current environment (terminate process)
STBR — Step and branch (used in loops; operand must be SIW)
ENTR — Execute a procedure call as given by a tag 7 PCW, resulting in an RCW at D + 1
RETN — Return from current routine to place given by RCW at D + 1 and remove the stack frame
Read more about this topic: Burroughs Large Systems Instruction Sets
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