MC68EC000EI8 Freescale Semiconductor, MC68EC000EI8 Datasheet - Page 239

• Manufacturer Part Number: MC68EC000EI8
• Description: IC MPU 32BIT 85MHZ 68-PLCC
• Manufacturer: Freescale Semiconductor
• Series: M68000r

Specifications of MC68EC000EI8

• Processor Type: M680x0 32-Bit
• Speed: 8MHz
• Voltage: 3.3V, 5V
• Mounting Type: Surface Mount
• Package / Case: 68-PLCC
• Core Size: 32 Bit
• Cpu Speed: 8MHz
• Digital Ic Case Style: PLCC
• No. Of Pins: 68
• Supply Voltage Range: 3V To 3.6V
• Operating Temperature Range: 0°C To +70°C
• Filter Terminals: SMD
• Rohs Compliant: Yes
• Clock Frequency: 8MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -

MULS
Operation:
Assembler
Syntax:
Attributes:
Description: Multiplies two signed operands yielding a signed result. This instruction has a
Condition Codes:
MOTOROLA
word operand form and a long operand form.
In the word form, the multiplier and multiplicand are both word operands, and the result
is a long-word operand. A register operand is the low-order word; the upper word of the
register is ignored. All 32 bits of the product are saved in the destination data register.
In the long form, the multiplier and multiplicand are both long- word operands, and the
result is either a long word or a quad word. The long-word result is the low-order 32 bits
of the quad- word result; the high-order 32 bits of the product are discarded.
X — Not affected.
N — Set if the result is negative; cleared otherwise.
Z — Set if the result is zero; cleared otherwise.
V — Set if overflow; cleared otherwise.
C — Always cleared.
—
X
Overflow (V = 1) can occur only when multiplying 32-bit
operands to yield a 32-bit result. Overflow occurs if the high-
order 32 bits of the quad-word product are not the sign extension
of the low- order 32 bits.
N
M68000 FAMILY PROGRAMMER’S REFERENCE MANUAL
Source x Destination
MULS.W < ea > ,Dn16 x 16
*MULS.L < ea > ,Dl
*MULS.L < ea > ,Dh – Dl 32 x 32
Size = (Word, Long)
*Applies to MC68020, MC68030, MC68040, CPU32
Z
V
C
0
Signed Multiply
(M68000 Family)
NOTE
Destination
32 x 32
32
32
64
Integer Instructions
MULS
4-135