UPD78F9234MC-5A4-A Datasheet, PDF (226/419 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

CHAPTER 12 MULTIPLIER
;==============================================================
; The example of multiplier use
;==============================================================
M_DATA_A EQU 0FE80H
; Address A for multipliers
M_DATA_B EQU 0FE90H
; Address B for multipliers
; A setup for operation
MOV M_DATA_A, #0AAH
MOV M_DATA_B, #0D3H
; Multiplication of M_DATA_A and M_DATA_B
MOV A, M_DATA_A
MOV MRA0, A
MOV A, M_DATA_B
MOV MRB0, A
SET1 MULST0
; Multiplication start
M_LOOP:
BT
MOVW
MULST0, $M_LOOP
AX, MUL0
; Waiting for multiplication completion
; Multiplication completion
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User’s Manual U17446EJ5V0UD