Bare metal, Assembly language • Re: BCS mnemonic (?)

In the reference I have, I can only find RRX and not RXXS.

There is no separate entry for RRXS, it is in the notes for RRX.

This is true for all instructions that support the status flags. You have to specifically indicate whether you want in instruction to set the status flags or not. By default (in the 'short' form of the instruction) instructions do not set the status flags. You have to append 'S' to the instruction in order to set the status flags. So for example:does not update the status flags even if there is an overflow.does update the status flags.

In the Architecture Reference Manual, you see this as {S} in the notes of the general instructions.

Statistics: Posted by creatid — Sun Dec 17, 2023 9:27 pm

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