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| author | priyanka | 2015-06-24 15:03:17 +0530 |
|---|---|---|
| committer | priyanka | 2015-06-24 15:03:17 +0530 |
| commit | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (patch) | |
| tree | ab291cffc65280e58ac82470ba63fbcca7805165 /273/CH25/EX25.27/ex25_27sce.sce | |
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initial commit / add all books
Diffstat (limited to '273/CH25/EX25.27/ex25_27sce.sce')
| -rwxr-xr-x | 273/CH25/EX25.27/ex25_27sce.sce | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/273/CH25/EX25.27/ex25_27sce.sce b/273/CH25/EX25.27/ex25_27sce.sce new file mode 100755 index 000000000..0ee5e2bdf --- /dev/null +++ b/273/CH25/EX25.27/ex25_27sce.sce @@ -0,0 +1,88 @@ +
+clc;
+clear;
+//example 25.27
+//substraction by one's complement method
+//a=input(" Enter the first no (binary) :");
+//b=input(" Enter the number from which first no has to be substracted:");
+a=10011;
+b=10001;
+q=0;
+
+for i=1:5
+ a1(i)=modulo(a,10);
+ a=a/10;
+ a=round(a);
+end
+for i=1:5
+ b1(i)=modulo(b,10);
+ b=b/10;
+ b=round(b);
+end;
+for i=1:5//making one's complement of number to be substracted
+ a1(i)=bitcmp(a1(i),1);
+end
+
+car(1)=0;
+
+for i=1:5
+ c1(i)=a1(i)+b1(i)+car(i);
+ if c1(i)== 2 then
+ car(i+1)= 1;
+ c1(i)=0;
+ elseif c1(i)==3 then
+ car(i+1)= 1;
+ c1(i)=1;
+ else
+ car(i+1)=0;
+ end;
+end;
+car2(1)=car(6);
+re=0;
+format('v',18);
+for i=1:5
+ re=re+(c1(i)*(10^(i-1))) //result of one's complement addition
+end;
+
+for i=1:5
+ s(i)=modulo(re,10);
+ re=re/10;
+ re=round(re);
+end;
+if car2(1)==1 then// checking carry
+
+for i=1:5
+ re1(i)=s(i)+car2(i);//addition of carry after one's complement addition
+ if re1(i)== 2 then
+ car2(i+1)= 1;
+ re1(i)=0;
+ elseif re1(i)==3 then
+ car2(i+1)= 1;
+ re1(i)=1;
+ else
+ car2(i+1)=0;
+ end;
+end;
+
+ re2=0;
+format('v',18);
+ for i=1:5
+ re2=re2+(re1(i)*(10^(i-1)))
+ end;
+ re2= -1*re2;
+disp(re2,'difference is') ;
+
+else
+ for i=1:5
+ re1(i)=bitcmp(s(i),1);
+ end
+ re2=0;
+ for i=1:5
+ re2=re2+(re1(i)*(10^(i-1)))
+ end;
+ re2=-1*re2;
+ disp(re2,'difference is') ;
+
+end;
+
+
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