参考元 mohmongar様
10進数を２進数で・・・Excelの話。
https://mohmongar.net/?p=773
恐らく、こちらも10進数15桁+-が限界だとおもいます。double型が精度をたもてなくなるので。
多桁計算のアルゴリズムとかを使えば、15桁超も可能だろうけど、気が乗りません。
15桁超えるときは、VBAでDECIMAL型使うか、
VB.NETとかC#.NETとかJScript.NETでDECIMAL型使って、
コンパイルして .exe作ったほうが、簡単だとおもいます。
※注意 範囲のエラーチェック無し
＜d2b06.vbs＞
Option Explicit
Dim oFS
Dim oFR
Dim oFW
Dim myData
Dim i
Dim x , y ,z
Dim bin16(15)
bin16(0) = "0000"
bin16(1) = "0001"
bin16(2) = "0010"
bin16(3) = "0011"
bin16(4) = "0100"
bin16(5) = "0101"
bin16(6) = "0110"
bin16(7) = "0111"
bin16(8) = "1000"
bin16(9) = "1001"
bin16(10) = "1010"
bin16(11) = "1011"
bin16(12) = "1100"
bin16(13) = "1101"
bin16(14) = "1110"
bin16(15) = "1111"
Dim bin256(255)
z = 0
For x = 0 TO 15
For y = 0 To 15
bin256(z) = bin16(x) & bin16(y)
z = z + 1
Next
Next
Dim hex16(15)
hex16(0) = "0"
hex16(1) = "1"
hex16(2) = "2"
hex16(3) = "3"
hex16(4) = "4"
hex16(5) = "5"
hex16(6) = "6"
hex16(7) = "7"
hex16(8) = "8"
hex16(9) = "9"
hex16(10) = "A"
hex16(11) = "B"
hex16(12) = "C"
hex16(13) = "D"
hex16(14) = "E"
hex16(15) = "F"
Dim hex256(255)
z = 0
For x = 0 TO 15
For y = 0 To 15
hex256(z) = hex16(x) & hex16(y)
z = z + 1
Next
Next
Dim aQuo32
Dim aQuo32Quo16
Dim aQuo32Mod16
Dim aMod32
Dim aMod32Quo16
Dim aMod32Mod16
Dim aQuo32Quo16Quo8
Dim aQuo32Quo16Mod8
Dim aQuo32Mod16Quo8
Dim aQuo32Mod16Mod8
Dim aMod32Quo16Quo8
Dim aMod32Quo16Mod8
Dim aMod32Mod16Quo8
Dim aMod32Mod16Mod8
Set oFS = CreateObject("Scripting.FileSystemObject")
Set oFR = oFS.OpenTextFile("C:\Documents and Settings\USER\デスクトップ\b01.txt")
Set oFW = oFS.CreateTextFile("C:\Documents and Settings\USER\デスクトップ\out_b01vbs.txt")
Do Until oFR.AtEndOfStream
myData = oFR.ReadLine
oFW.WriteLine( Right(" " & myData,16) & vbTab & dec2bin(myData))
'oFW.WriteLine(dec2bin(myData))
Loop
oFR.Close
oFW.Close
Set oFR = Nothing
Set oFW = Nothing
Set oFS = Nothing
MsgBox "処理終了"
Function dec2bin(number)
Dim j
Dim minus(7)
Dim kuriage(7)
aQuo32 = Int(ABS(number) / 2^32)
aQuo32Quo16 = Int(aQuo32 / 2^16)
aQuo32Quo16Quo8 = aQuo32Quo16 \ 2^8
aQuo32Quo16Mod8 = aQuo32Quo16 Mod 2^8
aQuo32Mod16 = aQuo32 - (aQuo32Quo16 * 2^16)
aQuo32Mod16Quo8 = aQuo32Mod16 \ 2^8
aQuo32Mod16Mod8 = aQuo32Mod16 Mod 2^8
aMod32 = ABS(number) - (aQuo32 * 2^32)
aMod32Quo16 = Int(aMod32 / 2^16)
aMod32Quo16Quo8 = aMod32Quo16 \ 2^8
aMod32Quo16Mod8 = aMod32Quo16 Mod 2^8
aMod32Mod16 = aMod32 - (aMod32Quo16 * 2^16)
aMod32Mod16Quo8 = aMod32Mod16 \ 2^8
aMod32Mod16Mod8 = aMod32Mod16 Mod 2^8
If number < 0 Then
For j = 0 To 7
minus(j) = 0
kuriage(j) = 0
Next
kuriage(7) = 1
minus(0) = 255 - aQuo32Quo16Quo8
minus(1) = 255 - aQuo32Quo16Mod8
minus(2) = 255 - aQuo32Mod16Quo8
minus(3) = 255 - aQuo32Mod16Mod8
minus(4) = 255 - aMod32Quo16Quo8
minus(5) = 255 - aMod32Quo16Mod8
minus(6) = 255 - aMod32Mod16Quo8
minus(7) = 255 - aMod32Mod16Mod8
If minus(7) + kuriage(7) > 255 Then
kuriage(6) = 1
minus(7) = 0
Else
minus(7) = minus(7) + kuriage(7)
End If
For j = 6 To 1 Step -1
If minus(j) + kuriage(j) > 255 Then
kuriage(j - 1) = 1
minus(j) = 0
Else
minus(j) = minus(j) + kuriage(j)
End If
Next
If minus(0) + kuriage(0) > 255 Then
'こんなのは、範囲外
'kuriage(0) = 1
minus(0) = 0
Else
minus(0) = minus(0) + kuriage(0)
End If
dec2bin = bin256(minus(0)) & _
bin256(minus(1)) & _
bin256(minus(2)) & _
bin256(minus(3)) & _
bin256(minus(4)) & _
bin256(minus(5)) & _
bin256(minus(6)) & _
bin256(minus(7)) & _
vbTab & _
hex256(minus(0)) & _
hex256(minus(1)) & _
hex256(minus(2)) & _
hex256(minus(3)) & _
hex256(minus(4)) & _
hex256(minus(5)) & _
hex256(minus(6)) & _
hex256(minus(7))
Else
dec2bin = bin256(aQuo32Quo16Quo8) & _
bin256(aQuo32Quo16Mod8) & _
bin256(aQuo32Mod16Quo8) & _
bin256(aQuo32Mod16Mod8) & _
bin256(aMod32Quo16Quo8) & _
bin256(aMod32Quo16Mod8) & _
bin256(aMod32Mod16Quo8) & _
bin256(aMod32Mod16Mod8) & _
vbTab & _
hex256(aQuo32Quo16Quo8) & _
hex256(aQuo32Quo16Mod8) & _
hex256(aQuo32Mod16Quo8) & _
hex256(aQuo32Mod16Mod8) & _
hex256(aMod32Quo16Quo8) & _
hex256(aMod32Quo16Mod8) & _
hex256(aMod32Mod16Quo8) & _
hex256(aMod32Mod16Mod8)
End If
End Function
＜data_seed.vbs＞データの種
Option Explicit
Dim oFS
Dim oText
Dim i
Dim j
Set oFS = CreateObject("Scripting.FileSystemObject")
Set oText = oFS.CreateTextFile("b01.txt")
For i = 1 To 49
oText.WriteLine( (2^i)-1 )
oText.WriteLine( (2^i) )
oText.WriteLine( (2^i)+1 )
Next
For i = 1 To 49
oText.WriteLine(Right("-" & (2^i)-1,16) )
oText.WriteLine(Right("-" & (2^i) ,16) )
oText.WriteLine(Right("-" & (2^i)+1,16) )
Next
Dim myData
For i = 7 To 49
For j = 1 To 100
myData = INT(RND() * (2^i))
oText.WriteLine( myData )
oText.WriteLine("-" & myData )
Next
Next
oText.WriteLine( 987654321012345)
oText.WriteLine(-987654321012345)
oText.WriteLine( 999999999999999)
oText.WriteLine(-999999999999999)
oText.Close
Set oText = Nothing
Set oFS = Nothing
MsgBox "処理終了"
検証用r4(rexx)サンプル
regina(rexx),ooREXX(rexx)の場合、"!"を"STDERR"に変えてください。
＜b2d64.rex＞2進数から10進数へ
Numeric Digits 20
myTab = '09'x
do i = 1 while lines() > 0
num01 = linein() /* STDIN */
a02 = b2x(num01)
a03 = x2d(b2x(num01),16)
Call lineout ,a03||myTab||num01 /* STDOUT */
end
Call lineout !,Right("00000"||i,5)||" counts" /* STDERR */
＜dec2bin64.rex＞10進数から2進数へ
Numeric Digits 20
myTab = '09'x
do i = 1 while lines() > 0
num01 = linein() /* STDIN */
a01 = Right(" "||num01,20)
a02 = d2x(num01,16)
a03 = x2b(d2x(num01,16)) /* DEC2BINに相当するもの無し*/
Call lineout ,a01||myTab||a02||myTab||a03 /* STDOUT */
end
Call lineout !,Right("00000"||i,5)||" counts" /* STDERR */
※注意
＜d2b64.rex＞
Numeric Digits 20
myTab = '09'x
num01 = "-618399247191519" /* STDIN */
/*a01 = Right(" "||num01,20)*/
SAY d2x(num01,16)
SAY x2b(d2x(num01,16)) /* DEC2BINに相当するもの無し*/
R:\>r4 d2b64.rex
FFFFFFFF80000000
1111111111111111111111111111111110000000000000000000000000000000
R:\>regina d2b64.rex
FFFDCD91B48AB221
1111111111111101110011011001000110110100100010101011001000100001
R:\>
C:\Documents and Settings\USER\デスクトップ>rexx -v
Open Object Rexx Version 4.1.0
Build date: Dec 5 2010
Addressing Mode: 32
Copyright (c) IBM Corporation 1995, 2004.
Copyright (c) RexxLA 2005-2010.
All Rights Reserved.
This program and the accompanying materials are made available under
the terms of the Common Public License v1.0 which accompanies this
distribution or at
http://www.oorexx.org/license.html
C:\Documents and Settings\USER\デスクトップ>rexx d2b64.rex
FFFDCD91B48AB221
1111111111111101110011011001000110110100100010101011001000100001
C:\Documents and Settings\USER\デスクトップ>
＜a01.rex＞
Numeric Digits 20
myTab = '09'x
a01 ="1111111111111100011100101000000101011011001110011000000000000001"
SAY b2x(a01)
SAY x2D(b2x(a01),16)
a01 ="1111111111111100011111011011101111001111000010010000000110000111"
SAY b2x(a01)
SAY x2D(b2x(a01),16)
R:\>r4 a01.rex
FFFC72815B398001
-999999999999999
FFFC7DBBCF090187
-987654321012345
R:\>regina a01.rex
FFFC72815B398001
-999999999999999
FFFC7DBBCF090187
-987654321012345
R:\>
下記ooREXX
C:\Documents and Settings\USER\デスクトップ>rexx a01.rex
FFFC72815B398001
-999999999999999
FFFC7DBBCF090187
-987654321012345
C:\Documents and Settings\USER\デスクトップ>
