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PROGRAMMING NUMERIC APPLICATIONS
Table
2-14.
Instruction
Set
Reference
Data
(Cont'd.)
FCHS
FCHS
(no operands)
Exceptions:
I
Change sign
Execution Clocks
Operands
Operand Word Code
Coding Example
Typical
Range
Transfers
Bytes
(no operands)
15
10-17
0
2 FCHS
FClEX/FNClEX
FClEX/FNClEX(no
operands)
Exceptions: None
Clear exceptions
Execution Clocks
Operands
Operand Word Code
Coding Example
Typical Range
Transfers
Bytes
(no operands) 5
2-8
0
2
FNCLEX
FCOM
FCOM
j jsource
Exceptions:
I,
D
Compare real
Execution Clocks
Operands
Operand Word
Code
Coding Example
Typical
Range
Transfers
Bytes
jjST(i)
45
40-50
0
2 FCOM ST(1)
short-real
65
60-70 2 2-4
FCOM [BP].UPPER_LlMIT
long-real
70 65-75 4
2-4
FCOM WAVELENGTH
FCOMP
FCOMP
j jsource
Exceptions:
I,
D
Compare real and pop
Execution Clocks
Operands
Operand Word Code
Coding Example
Typical
Range
Transfers
Bytes
jjST(i)
47
42-52 0 2
FCOMP ST(2)
short-real
68
63-73 2
2-4
FCOMP [BP + 2].N_READINGS
long-real 72
67-77 4 2-4 FCOMP DENSITY
FCOMPP
FCOMPP
(no operands)
Exceptions:
I,
D
Compare real and pop twice
Execution Clocks
Operands
Operand Word
Code
Coding Example
Typical Range
Transfers Bytes
(no operands)
50
45-55
0
2 FCOMPP
2-25