HP 15C: Binary to
Decimal Conversion
Input: A number in
binary form. Maximum value: 1 111 111
111 (1,023 in decimal).
Registers used:
R0 = number in binary
R1 = number in decimal
R2 = counter
I have this program under label C.
Program:
Step
|
Key
|
Key Code
|
001
|
LBL C
|
42, 21, 13
|
002
|
STO 0
|
44, 0
|
003
|
LOG
|
43, 13
|
004
|
INT
|
43, 44
|
005
|
1
|
1
|
006
|
+
|
40
|
007
|
3
|
3
|
008
|
10^X
|
13
|
009
|
÷
|
10
|
010
|
STO 2
|
44, 2
|
011
|
0
|
0
|
012
|
STO 1
|
44, 1
|
013
|
LBL 3
|
42, 21, 3
|
014
|
RCL 0
|
45, 0
|
015
|
RCL 2
|
45, 2
|
016
|
INT
|
43, 44
|
017
|
1
|
1
|
018
|
+
|
40
|
019
|
10^X
|
13
|
020
|
÷
|
10
|
021
|
FRAC
|
42, 44
|
022
|
1
|
1
|
023
|
0
|
0
|
024
|
*
|
20
|
025
|
INT
|
43, 44
|
026
|
2
|
2
|
027
|
ENTER
|
36
|
028
|
RCL 2
|
45, 2
|
029
|
INT
|
43, 44
|
030
|
Y^X
|
14
|
031
|
*
|
20
|
032
|
STO+ 1
|
44, 40, 1
|
033
|
ISG 2
|
42, 6, 2
|
034
|
GTO 3
|
22, 3
|
035
|
RCL 1
|
45, 1
|
(Line 006 was corrected, the key code should be 40, not 10. Much thanks and appreciation to Torben Fuglsang for pointing this out to me.)
Examples:
Binary: 1101, Decimal: 13
Binary: 10101, Decimal: 42
This blog is property of Edward Shore. 2016
