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参数资料
型号： UPSD3233A-40T6T
厂商： 意法半导体
英文描述： CABLE ASSEMBLY; LEAD-FREE SOLDER; C MALE TO C MALE; 75 OHM, RG59B/U COAX
中文描述： 闪存可编程系统设备与8032微控制器核心和64Kbit SRAM的
文件页数： 22/176页
文件大小： 1081K
代理商： UPSD3233A-40T6T
μ
PSD323X
22/176
Table 4. Arithmetic Instructions
Logical Instructions
Table 5,page 23 shows list of
μ
PSD323X Devices
logical instructions. The instructions that perform
Boolean operations (AND, OR, Exclusive OR,
NOT) on bytes perform the operation on a bit-by-
bit basis. That is, if the Accumulator contains
00110101B and byte contains 01010011B, then:
ANL A, <byte>
will leave the Accumulator holding 00010001B.
The addressing modes that can be used to access
the <byte> operand are listed in Table 5.
The ANL A, <byte> instructionmay take any of the
forms:
ANL A,7FH(direct addressing)
ANL A, @R1 (indirect addressing)
ANL A,R6 (register addressing)
ANL A,#53H (immediate constant)
Note:
Boolean operations can be performed on
any byte in the internal Data Memory space with-
out going through the Accumulator. The XRL
<byte>, #data instruction, for example, offers a
quick and easy way to invert port bits, as in
XRL P1, #0FFH.
If the operation is in response to an interrupt, not
using the Accumulator saves the time and effort to
push it onto the stack in the service routine.
The Rotate instructions (RL A, RLC A, etc.) shift
the Accumulator 1 bit to the left or right. For a left
rotation, the MSB rolls intothe LSB position. For a
right rotation, the LSB rolls into the MSB position.
The SWAP A instruction interchanges the high
and low nibbles within the Accumulator. This is a
useful operation in BCD manipulations. For exam-
ple, if the Accumulator contains a binary number
which is known tobe less than100, it canbe quick-
ly converted to BCD by the following code:
MOVE B,#10
DIV AB
SWAP A
ADD A,B
Dividing the number by 10 leaves the tens digit in
the low nibble of the Accumulator, and the ones
digit in the Bregister. The SWAP and ADDinstruc-
tions move the tens digit to the high nibble of the
Accumulator, and the ones digit to the low nibble.
Mnemonic
Operation
Addressing Modes
Dir.
Ind.
Reg.
Imm
ADD A,<byte>
A = A + <byte>
X
X
X
X
ADDC A,<byte>
A = A + <byte> + C
X
X
X
X
SUBB A,<byte>
A = A – <byte> – C
X
X
X
X
INC
A = A + 1
Accumulator only
INC <byte>
<byte> = <byte> + 1
X
X
X
INC DPTR
DPTR = DPTR + 1
Data Pointer only
DEC
A = A – 1
Accumulator only
DEC <byte>
<byte> = <byte> – 1
X
X
X
MUL AB
B:A = B x A
Accumulator and B only
DIV AB
A = Int[ A / B ]
B = Mod[ A / B ]
Accumulator and B only
DA A
Decimal Adjust
Accumulator only
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