■
Outline of operation
● This instruction separates the floating point real number data stored in the area starting with
[S] into mantissa and exponent according to the operation unit [i].
● The mantissa is stored in the area starting with [D1] and the exponent in the area starting
with [D2].
■
Conversion example
Example 1) Operation units: Single-precision real number (SF) (positive real
number)
7.000000
0.875000
0.000000
3
DT10
・
DT11
DT0
・
DT1
DT2
・
DT3
DT4
・
DT5
(Mantissa)
(Exponent)
* 7.0 = 0.875 x (the cube of 2)
[S]…DT10 [D1]…DT2 [D2]…DT4
[i]…SF
Example 2) Operation units: Double-precision real number (DF) (positive real
number)
0.62500000000
40.00000000000
0.00000000000
6
DT4
・
DT7
DT20
・
DT23
DT24
・
DT27
DT28
・
DT29
(Mantissa)
(Exponent)
* 40.0 = 0.6250 x (the sixth power of 2)
[S]…DT4 [D1]…DT20 [D2]…DT28
[i]…DF
Example 3) Operation units: Single-precision real number (SF) (negative real
number)
0.000000
-7.000000
-0.875000
3
DT10
・
DT11
DT0
・
DT1
DT2
・
DT3
DT4
・
DT5
(Mantissa)
(Exponent)
* -7.0 = (-0.875) x (the cube of 2)
[S]…DT10 [D1]…DT2 [D2]…DT4
[i]…SF
Example 4) Operation units: Double-precision real number (DF) (negative real
number)
-0.62500000000
-40.00000000000
0.00000000000
6
DT10
・
DT11
DT20
・
DT23
DT24
・
DT27
DT28
・
DT29
(Mantissa)
(Exponent)
* -40.0 = (-0.6250) x (the sixth power of 2)
[S]…DT4 [D1]…DT20 [D2]…DT28
[i]…DF
11.24 DISF (Separation of Mantissa and Exponent of Single-precision or
Double-precision Real Number Data)
11-50
WUME-FP7CPUPGR-12
Summary of Contents for FP7 Series
Page 2: ... MEMO 2 WUME FP7CPUPGR 12 ...
Page 18: ... MEMO xviii WUME FP7CPUPGR 12 ...
Page 52: ... MEMO 1 34 WUME FP7CPUPGR 12 ...
Page 104: ... MEMO 2 52 WUME FP7CPUPGR 12 ...
Page 123: ...3 9 ANS AND stack WUME FP7CPUPGR 12 3 19 ...
Page 125: ...3 10 ORS OR Stack WUME FP7CPUPGR 12 3 21 ...
Page 129: ...3 11 PSHS Push stack RDS Read stack POPS Pop stack WUME FP7CPUPGR 12 3 25 ...
Page 190: ...3 26 JP LBL Jump Label 3 86 WUME FP7CPUPGR 12 ...
Page 239: ...Name Description SR8 ER 3 46 ST ST ST ST ST ST Data Comparison Start WUME FP7CPUPGR 12 3 135 ...
Page 246: ... MEMO 3 142 WUME FP7CPUPGR 12 ...
Page 258: ... MEMO 4 12 WUME FP7CPUPGR 12 ...
Page 304: ... MEMO 5 46 WUME FP7CPUPGR 12 ...
Page 321: ...Name Description ER 6 7 DIVFP2 Division FP2 Compatible WUME FP7CPUPGR 12 6 17 ...
Page 348: ... MEMO 6 44 WUME FP7CPUPGR 12 ...
Page 388: ... MEMO 7 40 WUME FP7CPUPGR 12 ...
Page 438: ... MEMO 8 50 WUME FP7CPUPGR 12 ...
Page 450: ... MEMO 9 12 WUME FP7CPUPGR 12 ...
Page 520: ... MEMO 10 70 WUME FP7CPUPGR 12 ...
Page 602: ... MEMO 11 82 WUME FP7CPUPGR 12 ...
Page 622: ... MEMO 12 20 WUME FP7CPUPGR 12 ...
Page 650: ... MEMO 13 28 WUME FP7CPUPGR 12 ...
Page 1160: ... MEMO 18 66 WUME FP7CPUPGR 12 ...
Page 1188: ... MEMO 19 28 WUME FP7CPUPGR 12 ...
Page 1220: ... MEMO WUME FP7CPUPGR 12 ...
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