2.2.55 (3) SHLL (L)
SHLL (SHift Logical Left)
Shift Logical
Operation
ERd (left logical shift)
→
ERd
Assembly-Language Format
SHLL.L
ERd
Operand Size
Longword
Condition Code
H: Previous value remains unchanged.
N: Set to 1 if the result is negative; otherwise
cleared to 0.
Z:
Set to 1 if the result is zero; otherwise
cleared to 0.
V: Always cleared to 0.
C: Receives the previous value in bit 31.
I
UI
H
U
N
Z
V
C
—
—
—
—
↕
↕
0
↕
Description
This instruction shifts the bits in a 32-bit register ERd (destination operand) one bit to the left. The
most significant bit shifts into the carry flag. The least significant bit (bit 0) is cleared to 0.
Available Registers
ERd: ER0 to ER7
Operand Format and Number of States Required for Execution
Notes
The SHLL instruction differs from the SHAL instruction in its effect on the overflow flag.
LSB
MSB
b
31
b
0
. . . . . .
C
0
Instruction Format
1st byte
2nd byte
3rd byte
4th byte
Register direct
SHLL.L
ERd
1
0
3
0 erd
2
No. of
States
Addressing
Mode
Mnemonic
Operands
169