PM Opc PACK
From SublabWiki
PACK = Pack Nibbles
| Hex | Mnemonic | Cycles |
|---|---|---|
| DE | PACK | 8 |
Execute
A = (8-Bits) Register A B = (8-Bits) Register B
; PACK A = (A AND 0x0F) OR (B SHL 4)
Description
Pack low nibble of register A and B and return the formed byte into register A.
Register A forms the lower nibble and register B forms the higher nibble.
Conditions
None
Examples
; A = 0x01 ; B = 0x02 PACK ; A = 0x21 ; B = 0x02 (Remain unchanged)
