[Oberon] Branch instruction, program counter and link register

[Jörg]

Srinivas

Branch instructions are used to a) call procedures and b) for IFs and loops. In the former case you want to return to the place you were, for the latter not.
In other assembler instructions it‘s the difference between JSR and JMP.

Jörg

> Am 19.12.2017 um 13:48 schrieb Srinivas Nayak <sinu.nayak2001 at gmail.com>:
> 
> Dear All,
> 
> In RISC-5, why not every branch instruction saves PC+4 to R15?
> Any disadvantages?
> 
> 
> With thanks and best regards,
> 
> Yours sincerely,
> Srinivas Nayak
> 
> Home: http://www.mathmeth.com/sn/
> Blog: http://srinivas-nayak.blogspot.in/
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