Mulu (Multiply Unsigned Word Data) - Fujitsu FR Family Instruction Manual

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
Rj × Ri → MDH, MDL
Operation:
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:
122
N Z V C
C C C –
MSB
1 0 1 0 1 0 1 1 Rj
LSB
Ri