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參數(shù)資料
| 型號： | MB90214 |
| 廠商： | Fujitsu Limited |
| 英文描述： | 8-Bit Proprietary Microcontroller(8位專用微控制器) |
| 中文描述： | 8位微控制器專利（8位專用微控制器） |
| 文件頁數(shù)： | 87/99頁 |
| 文件大小： | 932K |
| 代理商： | MB90214 |
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87
MB90210 Series
Table 13 Signed Multiplication and Division Instructions (Word/Long Word) [11 Insturctions]
For an explanation of “(b)” and “(c)”, refer to Table 5, “Correction Values for Number of Cycles Used to Calculate
Number of Actual Cycles.”
*1: 3 when dividing into zero, 8 or 18 when an overflow occurs, and 18 normally.
*2: 3 when dividing into zero, 10 or 21 when an overflow occurs, and 22 normally.
*3: 4 + (a) when dividing into zero, 11 + (a) or 22 + (a) when an overflow occurs, and 23 + (a) normally.
*4: When the dividend is positive: 4 when dividing into zero, 10 or 29 when an overflow occurs, and 30 normally.
When the dividend is negative: 4 when dividing into zero, 11 or 30 when an overflow occurs, and 31 normally.
*5: When the dividend is positive: 4 + (a) when dividing into zero, 11 + (a) or 30 + (a) when an overflow occurs,
and 31 + (a) normally.
When the dividend is negative: 4 + (a) when dividing into zero, 12 + (a) or 31 + (a) when an overflow occurs,
and 32 + (a) normally.
*6: (b) when dividing into zero or when an overflow occurs, and 2
×
(b) normally.
*7: (c) when dividing into zero or when an overflow occurs, and 2
×
(c) normally.
*8: 3 when byte (AH) is zero, 12 when the result is positive, and 13 when the result is negative.
*9: 3 when byte (ear) is zero, 12 when the result is positive, and 13 when the result is negative.
*10: 4 + (a) when byte (eam) is zero, 13 + (a) when the result is positive, and 14 + (a) when the result is negative.
*11: 3 when word (AH) is zero, 12 when the result is positive, and 13 when the result is negative.
*12: 3 when word (ear) is zero, 16 when the result is positive, and 19 when the result is negative.
*13: 4 + (a) when word (eam) is zero, 17 + (a) when the result is positive, and 20 + (a) when the result is negative.
Note: Which of the two values given for the number of execution cycles applies when an overflow error occurs in
a DIV or DIVW instruction depends on whether the overflow was detected before or after the operation.
Mnemonic
#
cycles
B
Operation
LH AH I
S
T
N
Z
V
C RMW
DIV
A
DIV
A, ear
DIV
A, eam
DIVW
A, ear
DIVW
A, eam
2
2
2+
2
2+
*
1
*
2
*
3
*
4
*
5
0
0
*
6
0
*
7
word (AH) /byte (AL)
Quotient
→
byte (AL) Remainder
→
byte (AH)
word (A)/byte (ear)
Quotient
→
byte (A) Remainder
→
byte (ear)
word (A)/byte (eam)
Quotient
→
byte (A) Remainder
→
byte (eam)
long (A)/word (ear)
Quotient
→
word (A) Remainder
→
word (ear)
long (A)/word (eam)
Quotient
→
word (A) Remainder
→
word (eam)
byte (AH)
×
byte (AL)
→
word (A)
byte (A)
×
byte (ear)
→
word (A)
byte (A)
×
byte (eam)
→
word (A)
word (AH)
×
word (AL)
→
long (A)
word (A)
×
word (ear)
→
long (A)
word (A)
×
word (eam)
→
long (A)
Z
Z
Z
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
*
*
*
*
*
*
*
*
*
*
–
–
–
–
–
MUL
MUL
MUL
MULW A
MULW A, ear
MULW A, eam
A
A, ear
A, eam
2
2
2+
2
2
2+
*
8
*
9
*
10
*
11
*
12
*
13
0
0
(b)
0
0
(b)
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
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