Panasonic MN103001G/F01K - Manual (Page 62)

Extension Instruction Specifications
3-6
PUTCX (Register transfer instruction for multiply-and-accumulate operation: Load)
[Instruction Format (Macro Name)]
PUTCX Dm, Dn
[Assembler Mnemonic]
udf21 Dm, Dn
[Operation]
This instruction transfers the contents of Dm to the multiply-and-accumulate register MCRH.
This instruction also transfers the contents of Dn to the multiply-and-accumulate register MCRL.
The contents of the V flag are set in the multiply-and-accumulate overflow detect register MCVF.
[Flag Changes]
Flag Change Condition
V –
C –
N –
Z –