Vigor VS Series - Page 158

152
D M U L P
S1
S2
D
FNC
22
X Y M S
D.b R.b
KnX KnY
KnM KnS
T C
D,R
V,Z
UnG
K,H
E
" $"
S1
S2
D
1
2
M
3
○ ○ ○○
When X20 = “ON”, the multiplicand (D0) will be multiplied by the multiplier (D1), and the product will be stored at
the destination device (D3, D2).
When X20 = “OFF”→“ON”, the instruction will multiply (D1, D0) by (D3, D2) and store the product in (D7, D6, D5,
D4).
Two 32-bit data sources multiplied together will create a 64-bit product.
The Most Significant Bit (MSB) of a 64-bit product indicates a positive or negative (“0” represents it is positive; “1”
negative).
When the product of an operation stores in the and it is equal to “0”, the Multiplication / Division Zero Flag
M9023 turns “ON”.
S1 : the multiplicand
S2 : the multiplier
D : the product (of a multiplication)
D0
D1
(D3, D2)
10
5
50
(D1, D0)
(D3, D2)
(D7, D6, D5, D4)
100,000
MUL D0 D1 D2
X20
S1
S2
D
DMULP D0 D2 D4
X20
S1 S2
D
D
D
10
1,000,000
Operand
Devices
Multiplication (S1)×(S2) → (D+1,D)
Two 16-bit data sources multiplied together will produce a 32-bit product.
The Most Signicant Bit (MSB) of a 32-bit product indicates a positive or negative (“0” represents it is positive; “1”
negative).
When the product of an operation stores in the and it is equal to “0”, the Multiplication / Division Zero Flag
M9023 turns “ON”.