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HCS12 Datasheet(PDF) 114 Page - Freescale Semiconductor, Inc

Part # HCS12
Description  HCS12 Microcontrollers
PDF  452 Pages
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Manufacturer  FREESCALE [Freescale Semiconductor, Inc]
Direct Link  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

HCS12 Datasheet(HTML) 114 Page - Freescale Semiconductor, Inc

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S12CPUV2 Reference Manual, Rev. 4.0
114
Freescale Semiconductor
Operation:
Description:
Shifts all bits of double accumulator D one bit position to the left. Bit 0 is
loaded with a 0. The C status bit is loaded from the most significant bit of D.
ASLD
Arithmetic Shift Left Double Accumulator
(same as LSLD)
ASLD
C
b7 – – – – – – b0
b7 – – – – – – b0
0
Accumulator A
Accumulator B
CCR Details:
S
X
HIN
Z
V
C
––––
∆∆∆∆
N: Set if MSB of result is set; cleared otherwise
Z: Set if result is $0000; cleared otherwise
V: N
⊕ C = [N • C] + [N • C] (for N and C after the shift)
Set if (N is set and C is cleared) or (N is cleared and C is set);
cleared otherwise (for values of N and C after the shift)
C: D15
Set if the MSB of D was set before the shift; cleared otherwise
Source Form
Address
Mode
Object Code
Access Detail
HCS12
M68HC12
ASLD
INH
59
O
O



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