> Is there a LLH Load Logical Halfword?
LOAD LOGICAL HALFWORD is LLGH
Tony Thigpen
Mike Schwab wrote on 8/6/25 12:47 PM:
LH loads 16 bits and extends the sign bit through the register.
ICM loads selected 8 bit bytes per the mask.
Is there a LLH Load Logical Halfword?
On Wed, Aug 6, 2025 at 10:40 AM Charles Mills <[email protected]> wrote:
On Wed, 6 Aug 2025 05:42:55 -0400, David Cole <[email protected]> wrote:
Why use B in one case and C in the other?
I see what you are asking. Why 'B'? I don't know. Does any other opcode
use B for Byte? Lots of C's: MVC, CLC, ICM, STC, ...
I agree -- LC would have made more sense. Other than it might be construed
as or reserved for Load Complement; analogous to LCR.
Charles
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Mike A Schwab, Springfield IL USA
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