參數(shù)資料
型號： EC000UM
英文描述： EC000 Core User＇s Manual (SCM68000)
中文描述： EC000核心用戶手冊（SCM68000）
文件頁數(shù)： 18/145頁
文件大?。?/td> 829K
代理商： EC000UM
8-Bit Instruction Execution Times
MOTOROLA
EC000 CORE PROCESSOR USER’S MANUAL
5-5
5.5 SINGLE OPERAND INSTRUCTION EXECUTION TIMES
Table 5-7 lists the timing data for the single operand instructions. The total number of clock
periods, the number of read cycles, and the number of write cycles are shown in the previ-
ously described format. The number of clock periods, the number of read cycles, and the
number of write cycles, respectively, must be added to those of the effective address calcu-
lation where indicated by a plus sign (+).
Table 5-6. Immediate Instruction Execution Times
Instruction
Size
op #, Dn
op #, An
op #, M
ADDI
Byte
Word
Long
16(4/0)
28(6/0)
—
20(4/1)+
24(4/2)+
40(6/4)+
ADDQ
Byte
Word
Long
8(2/0)
12(2/0)
—
12(2/0)
12(2/1)+
16(2/2)+
24(2/4)+
ANDI
Byte
Word
Long
16(4/0)
28(6/0)
—
20(4/1)+
24(4/2)+
40(6/4)+
CMPI
Byte
Word
Long
16(4/0)
26(6/0)
—
16(4/0)
24(6/0)
EORI
Byte
Word
Long
16(4/0)
28(6/0)
—
20(4/1)+
24(4/2)+
40(6/4)+
MOVEQ
Long
8(2/0)
—
ORI
Byte
Word
Long
16(4/0)
28(6/0)
—
20(4/1)+
24(4/2)+
40(6/4)+
SUBI
Byte
Word
Long
16(4/0)
28(6/0)
—
12(2/1)+
16(2/2)+
24(2/4)+
SUBQ
Byte
Word
Long
8(2/0)
12(2/0)
—
12(2/0)
20(4/1)+
24(4/2)+
40(6/4)+
+ Add effective address calculation time.
Table 5-7. Single Operand Instruction Execution Times
Instruction
Size
Register
Memory
CLR
Byte
Word
Long
8(2/0)
10(2/0)
12(2/1)+
16(2/2)+
24(2/4)+
NBCD
Byte
10(2/0)
12(2/1)+
NEG
Byte
Word
Long
8(2/0)
10(2/0)
12(2/1)+
16(2/2)+
24(2/4)+
NEGX
Byte
Word
Long
8(2/0)
10(2/0)
12(2/1)+
16(2/2)+
24(2/4)+
NOT
Byte
Word
Long
8(2/0)
10(2/0)
12(2/1)+
16(2/2)+
24(2/4)+
Scc
Byte, False
Byte, True
8(2/0)
10(2/0)
12(2/1)+
TAS
Byte
8(2/0)
14(2/1)+
TST
Byte
Word
Long
8(2/0)
8(2/0)+
+ Add effective address calculation time.
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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