參數(shù)資料
型號(hào): intel i387
廠商: Intel Corp.
英文描述: Military I387 Math Coprocessor(軍用I387數(shù)學(xué)協(xié)處理器)
中文描述: 軍事I387數(shù)學(xué)協(xié)處理器(軍用I387數(shù)學(xué)協(xié)處理器)
文件頁(yè)數(shù): 39/41頁(yè)
文件大?。?/td> 457K
代理商: INTEL I387
MILITARY i387
TM
MATH COPROCESSOR
i387
TM
NPX Extensions to the i386
TM
Processor Instruction Set
(Continued)
Encoding
Instruction
Byte
0
Byte
1
Optional
Bytes 2–6
Clock Count Range
TRANSCENDENTAL
FCOS
k
e
Cosine of ST(0)
ESC 001
1111 1111
123–772
j
FPTAN
k
e
Partial tangent of ST(0)
ESC 001
1111 0010
191–497
j
FPATAN
e
Partial arctangent
ESC 001
1111 0011
314–487
FSIN
k
e
Sine of ST(0)
ESC 001
1111 1110
122–771
j
FSINCOS
k
e
Sine and cosine of ST(0)
ESC 001
1111 1011
194–809
j
F2XM1
l
e
2
ST(0)
b
1
ESC 001
1111 0000
211–476
FYL2X
m
e
ST(1)
*
log
2
(ST(0))
ESC 001
1111 0001
120–538
FYL2XP1
n
e
ST(1)
*
log
2
(ST(0)
a
1.0)
PROCESSOR CONTROL
ESC 001
1111 1001
257–547
FINIT
e
Initialize NPX
ESC 011
1110 0011
33
FSTSW AX
e
Store status word
ESC 111
1110 0000
13
FLDCW
e
Load control word
ESC 001
MOD 101 R/M
SIB/DISP
19
FSTCW
e
Store control word
ESC 101
MOD 111 R/M
SIB/DISP
15
FSTSW
e
Store status word
ESC 101
MOD 111 R/M
SIB/DISP
15
FCLEX
e
Clear exceptions
ESC 011
1110 0010
11
FSTENV
e
Store environment
ESC 001
MOD 110 R/M
SIB/DISP
103–104
FLDENV
e
Load environment
ESC 001
MOD 100 R/M
SIB/DISP
71
FSAVE
e
Save state
ESC 101
MOD 110 R/M
SIB/DISP
375–376
FRSTOR
e
Restore state
ESC 101
MOD 100 R/M
SIB/DISP
308
FINCSTP
e
Increment stack pointer
ESC 001
1111 0111
21
FDECSTP
e
Decrement stack pointer
ESC 001
1111 0110
22
FFREE
e
Free ST(i)
ESC 101
1100 0 ST(i)
18
FNOP
e
No operations
ESC 001
1101 0000
12
Shaded areas indicate instructions not available in M8087/M80287.
NOTES:
j. These timings hold for operands in the range
l
x
l
k
q
/4. For operands not in this range, up to 76 additional clocks may be
needed to reduce the operand.
k. 0
s
l
ST(0)
l
k
2
63
.
l.
b
1.0
s
ST(0)
s
1.0.
m. 0
s
ST(0)
k
%
,
b
%
k
ST(1)
k
a
%
.
n. 0
s
l
ST(0)
l
k
(2
b
SQRT(2))/2,
b
%
k
ST(1)
k
a
%
.
39
相關(guān)PDF資料
PDF描述
intel M80C186 CHMOS High Integration 16-Bit Microprocessor(CHMOS 高集成16位微處理器)
intel Pentium CPU 32 Bit CPU With MMX Technology and Mobile Module(32位帶MMX和移動(dòng)模塊處理器)
intel Pentium II processor Pentium II Processor Mobile Module(帶移動(dòng)模塊奔II處理器)
INTEL386 CXSA 5-V 32-Bit Fully Static Embedded Microprocessor(5V,32位完全靜態(tài)嵌入式微處理器)
INTEL386 CXSB Low-Voltage, 32-Bit, Fully Static Embedded Microprocessor(低電壓32位完全靜態(tài)嵌入式微處理器)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
INTELLIGENT CHARGER + 4AA 制造商:Energizer 功能描述:Bulk
INTELLI-INCH-LR-STARTER K 制造商:ALL MOTION 功能描述:Intelli-Inch Stepper & Controller Starter Kit
INTELLIPANEL 制造商:GJD 功能描述:EXTENSION LEAD 8GANG INTELLIPANEL 制造商:GJD 功能描述:EXTENSION LEAD, 8GANG, INTELLIPANEL
INTELLIPLUG 制造商:GLOBAL COMMUNICATIONS 功能描述:ADAPTOR 3WAY INTELLIPLUG
INTELLIPROBE 100 制造商:Fluke Networks 功能描述:TONE + PROBE KIT