35 mulu (multiply unsigned word data), Mulu (multiply unsigned word data) – FUJITSU FR family 32-bit microcontroller instruction manuel CM71-00101-5E User Manual

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CHAPTER 7 DETAILED EXECUTION INSTRUCTIONS

7.35

MULU (Multiply Unsigned Word Data)

Multiplies the word data in "Rj" by the word data in "Ri" as unsigned numbers, and
stores the resulting unsigned 64-bit data with the high word in the multiplication/
division register (MDH), and the low word in the multiplication/division register (MDL).

■

MULU (Multiply Unsigned Word Data)

Assembler format:

MULU Rj, Ri

Operation:

Rj × Ri

→

MDH, MDL

Flag change:

N: Set when the MSB of the "MDL" of the operation result is "1", cleared when the MSB is "0".

Z: Set when the "MDL" of the operation result is "0", cleared otherwise.

V: Cleared when the operation result is in the range 0 to 4294967295, set otherwise.

C: Unchanged

Execution cycles:

5 cycles

Instruction format:

–

MSB

LSB