參數(shù)資料
型號(hào)： MB90660A
廠商： Fujitsu Limited
英文描述： UL/CSA, T-BEAM, D-ON
中文描述： 16位微控制器專(zhuān)有的CMOS
文件頁(yè)數(shù)： 63/83頁(yè)
文件大小： 820K
代理商： MB90660A
63
MB90660A Series
I
INSTRUCTIONS (340 INSTRUCTIONS)
Table 1 Explanation of Items in Tables of Instructions
Item
Meaning
Mnemonic
Upper-case letters and symbols: Represented as they appear in assembler.
Lower-case letters:
Replaced when described in assembler.
Numbers after lower-case letters:Indicate the bit width within the instruction.
#
Indicates the number of bytes.
~
Indicates the number of cycles.
m: When branching
n : When not branching
See Table 4 for details about meanings of other letters in items.
RG
Indicates the number of accesses to the register during execution of the instruction.
It is used calculate a correction value for intermittent operation of CPU.
B
Indicates the correction value for calculating the number of actual cycles during execution of the
instruction. (Table 5)
The number of actual cycles during execution of the instruction is the correction value summed
with the value in the “~” column.
Operation
Indicates the operation of instruction.
LH
Indicates special operations involving the upper 8 bits of the lower 16 bits of the accumulator.
Z : Transfers “0”.
X : Extends with a sign before transferring.
– : Transfers nothing.
AH
Indicates special operations involving the upper 16 bits in the accumulator.
* : Transfers from AL to AH.
– : No transfer.
Z : Transfers 00
H
to AH.
X : Transfers 00
H
or FF
H
to AH by signing and extending AL.
I
Indicates the status of each of the following flags: I (interrupt enable), S (stack), T (sticky bit),
N (negative), Z (zero), V (overflow), and C (carry).
* : Changes due to execution of instruction.
– : No change.
S : Set by execution of instruction.
R : Reset by execution of instruction.
S
T
N
Z
V
C
RMW
Indicates whether the instruction is a read-modify-write instruction. (a single instruction that
reads data from memory, etc., processes the data, and then writes the result to memory.)
* : Instruction is a read-modify-write instruction.
– : Instruction is not a read-modify-write instruction.
Note: A read-modify-write instruction cannot be used on addresses that have different
meanings depending on whether they are read or written.
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