(11C) "Hi-Lo" Game

[Dieter]

(01-17-2018 11:39 PM)Gerson W. Barbosa Wrote:  Very nice to play it on my very first HP-15C, thanks! Yes, those were the days (1983 or so).

Add a new feature: let the user decide about the largest number to guess. :-)

First, add this code:

Code:

LBL E
INT
9
x≤y?
X<>Y
9
9
9
x>y?
X<>Y
STO 0
RTN

Then change the original program at LBL A and LBL B:

Code:

LBL A
RCL 0
RAN#
*
INT
...

LBL B
CLX
STO I
RCL 0
1
STO 2
+
STO 3
LBL 3
...

Enter the max. number to guess (between 9 and 999) and press f [E].
Input out of this range is automatically corrected.
Then start a new game with f [A] or f [B].

If you want to make sure that the program can be run without a max. number input, simply add a GSB E after each of the two RCL 0 instructions. Whatever happens to be in R0 then is adjusted to an integer between 9 and 999.

Dieter