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MAS281 数据表(PDF) 26 Page - Dynex Semiconductor

部件名 MAS281
功能描述  MIL-STD-1750A Microprocessor
PDF  55 Pages
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制造商  DYNEX [Dynex Semiconductor]
网页  http://www.dynexsemi.com
标志 DYNEX - Dynex Semiconductor

MAS281 数据表(HTML) 26 Page - Dynex Semiconductor

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MAS281
26/55
Operation
Op Code/Ext
Mnemonic
Format
Cycles *
FLOATING-POINT
Extended-Precision Floating-
8A
EFL
D, DX
5
0
1
Point Load
Extended-Precision Floating-
9A
EFST
D, DX
5
0
1
Point Store
Floating-Point Absolute Value
AC
FABS
R
1
1.75
3.25a
of Register
Floating-Point Negate Register
BC
FNEG
R
1
3.25
3.75a
Floating-Point Compare
F9
FCR
R
1
2.75
2.875wa
3X
FCB
B
2
2.75
2.875wa
4X D
FCBX
BX
2
2.75
2.875wa
F8
FC
D, DX
3
1.75
2.875wa
Extended-Precision Floating-
FB
EFCR
R
1
3.25
2.875wa
Point Compare
FA
EFC
D,DX
4.25a 2.75
2.875wa
Floating-Point Add
A9
FAR
R
1
7.625
8.25wa
2X
FAB
B
3
6.625
8.25wa
4X 8
FABX
BX
3
6.625
8.25wa
A8
FA
D, DX
4
5.625
8.25wa
Extended-Precision Floating-
AB
EFAR
R
1
21.3125
10.5625wa
Point Add
AA
EFA
D, DX
5
19.3125
10.5625wa
Floating-Point Subtract
B9
FSR
R
1
8.625
8.625wa
2X
FSB
B
3
7.625
8.625wa
4X 9
FSBX
BX
3
7.625
8.625wa
B8
FS
D, DX
4
6.625
8.625wa
Extended-Precision Floating-
BB
EFSR
R
1
23.0625
11.8125wa
Point Subtract
BA
EFS
D, DX
5
21.0625
11.8125wa
Floating-Point Multiply
C9
FMR
R
1
12.75a
6.25wa
2X
FMB
B
3
12.75a
6.25wa
4X A
FMBX
BX
3
12.75a
6.25wa
C8
FM
D, DX
4
11.75a
6.25wa
Extended-Precision Floating-
CB
EFMR
R
1
59.75
6.25wa
point Multiply
CA
EFM
D, DX
5
57.75
6.25wa
Floating-Point Divide
D9
FDR
R
1
31.5
32.75wa
2X
FDB
B
3
30 5
32.75wa
4X B
FDBX
BX
3
30 5
32.75wa
D8
FD
D, DX
4
29.5
32.75wa
Extended-Precision Floating-
DB
EFDR
R
1
102.625
47.875wa
Point Divide
DA
EFD
D, DX
5
100.625
47 875wa
* M = memory, P = processor (5 OSC cycles), B = processor (6 OSC cycles),
a = average if more than one alternative exists
wa = weighted average favouring one or more possible alternatives
MP
B
Table 7a: Instruction Summary (continued)



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