5.52. Store into Upper Byte


Addr
Mode  Mnemonic          Format/Opcode
                           8      4      4           16
D     STUB   RA,ADDR    --------------------------------------
DX    STUB   RA,ADDR,RX |  9B  |  RA  |  RX  |  |    ADDR    |
                        --------------------------------------
                           8      4      4           16
I     SUBI   RA,ADDR    --------------------------------------
IX    SUBI   RA,ADDR,RX |  9D  |  RA  |  RX  |  |    ADDR    |
                        --------------------------------------

Description. The LSH (lower byte) of register RA is stored into the MSH (upper byte) of the Derived Address, DA. The LSH (lower byte) of the DA is unchanged.

Register Transfer Description.

[DA]0-7 <-- (RA)8-15;



Registers Affected. None