Fujitsu CM71-00101-5E User Manual

126

CHAPTER 7 DETAILED EXECUTION INSTRUCTIONS

7.37

MULUH (Multiply Unsigned Half-word Data)

Multiplies the half-word data in the lower 16 bits of "Rj" by the half-word data in the
lower 16 bits of "Ri" as unsigned numbers, and stores the resulting unsigned 32-bit
data in the multiplication/division register (MDL).
The multiplication/division register (MDH) is undefined.

■

MULUH (Multiply Unsigned Half-word Data)

Assembler format:

MULUH Rj, Ri

Operation:

Rj × Ri

→

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: Unchanged

C: Unchanged

Execution cycles:

3 cycles

Instruction format:

–

MSB

LSB