M80C286 データシートの表示（PDF） - Intel
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M80C286 Datasheet PDF : 60 Pages
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M80C286
M80C286 INSTRUCTION SET SUMMARY (Continued)
FUNCTION
FORMAT
ARITHMETIC (Continued)
AASeASCII adjust for subtract
DASeDecimal adjust for subtract
MULeMultiply (unsigned)
Register-Byte
Register-Word
Memory-Byte
Memory-Word
IMULeInteger multiply (signed)
Register-Byte
Register-Word
Memory-Byte
Memory-Word
IMULeInteger immediate multiply
(signed)
00111111
00101111
1 1 1 1 0 1 1 w mod 1 0 0 r m
1 1 1 1 0 1 1 w mod 1 0 1 r m
0 1 1 0 1 0 s 1 mod reg r m
data
CLOCK COUNT
COMMENTS
Real
Address
Mode
Protected
Virtual
Address
Mode
Real
Address
Mode
Protected
Virtual
Address
Mode
3
3
3
3
13
13
21
21
16
16
2
9
24
24
2
9
13
13
21
21
16
16
2
9
24
24
2
9
data if s e 0
21 24
21 24
2
9
DIVeDivide (unsigned)
1 1 1 1 0 1 1 w mod 1 1 0 r m
Register-Byte
Register-Word
Memory-Byte
Memory-Word
IDIVeInteger divide (signed)
1 1 1 1 0 1 1 w mod 1 1 1 r m
Register-Byte
Register-Word
Memory-Byte
Memory-Word
AAMeASCII adjust for multiply
11010100 00001010
AADeASCII adjust for divide
11010101 00001010
CBWeConvert byte to word
10011000
CWDeConvert word to double word
LOGIC
Shift Rotate Instructions
10011001
Register Memory by 1
1 1 0 1 0 0 0 w mod TTT r m
Register Memory by CL
1 1 0 1 0 0 1 w mod TTT r m
Register Memory by Count
1 1 0 0 0 0 0 w mod TTT r m
count
TTT
Instruction
000
ROL
001
ROR
010
RCL
011
RCR
1 0 0 SHL SAL
101
SHR
111
SAR
Shaded areas indicate instructions not available in M8086 88 microsystems
14
14
6
6
22
22
6
6
17
17
26
69
25
25
26
69
17
17
6
6
25
25
6
6
20
20
26
69
28
28
26
69
16
16
14
14
2
2
2
2
27
27
2
9
5an 8an 5an 8an
2
9
5an 8an 5an 8an
2
9
54
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