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4-banger?
01-23-2014, 07:29 PM
Post: #8
RE: 4-banger?
(01-23-2014 05:58 PM)Jeff O. Wrote:  
(01-23-2014 03:57 PM)Scottie Wrote:  I've seen the term '4-banger' used here and there, but it doesn't come up much on a search here, and I don't really know what that is! Is that what I want? Scott

It sounds like what you want, for example, see this thread from the archives.

The above thread mentioned using the 10bii+ as the basis for such a calculator. The 10bii+ has the same 6-pin port behind the battery cover as the 30b, and can be reflashed in exactly the same way. I gave the concept further thought later, focusing on an engineering scientific with basic programming. I obtained the LCD table for the 10bii+, and was told that the keyboard configuration is easy to figure out. With that info, I thought that maybe it would not be too tough to take the wp34s software and change the LCD and keyboard handling routines and load it onto the 10bii+. Much of the functionality of wp34s would be inaccessible, but I figure it would be easier just to leave it in. I attempted to look at the wp34s source code to see if there was a chance in hell that I could do it, but having no experience with C I could not make heads or tails of it. But I did make a pretty picture, so if anyone thinks they could do it, I'll be happy to send you the LCD table. (Of course we would also need Eric to make us a set of key labels. No overlay is required for the keyboard plane as I put all labels on the keys. Just need to use a black sharpie to blank out the factory blue labels on the keyboard plane.)

[Image: attachment.php?aid=186]

I'm sure most functions are obvious, but a few may not be:
- the shifted CL P/R function on the EEX key would clear all storage registers in normal user mode, and clear program memory in programming mode
- the P-with-down-arrow function next to the ON function would single-step and execute a program in normal mode. In programming mode, it would just single-step through the program. In other words, the ON function only works when the calculator is off, otherwise it is single-step.
- the P-with-up-arrow function next to the OFF function would back-step through a program in programming mode. In normal mode, the shifted OFF function would work. In other words, you must be in normal mode to turn the calculator off.
No x<=y? This appears to be very useful and important, otherwise it wouldn't be the second test available on the HP-12C, along with x=0.

Gerson.
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Messages In This Thread
4-banger? - Scottie - 01-23-2014, 03:57 PM
RE: 4-banger? - Jeff O. - 01-23-2014, 05:58 PM
RE: 4-banger? - walter b - 01-23-2014, 07:08 PM
RE: 4-banger? - Gerson W. Barbosa - 01-23-2014 07:29 PM
RE: 4-banger? - Dieter - 01-23-2014, 08:41 PM
RE: 4-banger? - walter b - 01-23-2014, 08:59 PM
RE: 4-banger? - Dieter - 01-23-2014, 09:40 PM
RE: 4-banger? - walter b - 01-24-2014, 08:13 AM
RE: 4-banger? - BillCarter - 01-24-2014, 06:30 PM
RE: 4-banger? - walter b - 01-24-2014, 11:23 PM
RE: 4-banger? - walter b - 01-26-2014, 12:44 PM
RE: 4-banger? - walter b - 01-27-2014, 10:38 AM
RE: 4-banger? - Dieter - 01-28-2014, 09:39 PM
RE: 4-banger? - Scottie - 01-23-2014, 06:28 PM
RE: 4-banger? - walter b - 01-23-2014, 06:44 PM
RE: 4-banger? - Jeff O. - 01-23-2014, 06:47 PM
RE: 4-banger? - Michael de Estrada - 01-23-2014, 06:57 PM
RE: 4-banger? - Sanjeev Visvanatha - 01-24-2014, 11:43 PM
RE: 4-banger? - Sanjeev Visvanatha - 01-26-2014, 09:41 PM
RE: 4-banger? - walter b - 01-26-2014, 10:07 PM
RE: 4-banger? - Sanjeev Visvanatha - 01-26-2014, 10:11 PM
RE: 4-banger? - Terje Vallestad - 01-26-2014, 10:11 PM
RE: 4-banger? - Sanjeev Visvanatha - 01-26-2014, 10:13 PM
RE: 4-banger? - Scottie - 01-27-2014, 06:46 PM
RE: 4-banger? - Scottie - 01-27-2014, 06:53 PM
RE: 4-banger? - walter b - 01-27-2014, 09:30 PM
RE: 4-banger? - Jonathan Cameron - 01-27-2014, 06:59 PM
RE: 4-banger? - walter b - 01-27-2014, 09:56 PM
RE: 4-banger? - Paul Dale - 01-27-2014, 10:16 PM
RE: 4-banger? - d b - 01-27-2014, 11:22 PM
RE: 4-banger? - walter b - 01-28-2014, 08:14 AM
RE: 4-banger? - walter b - 01-28-2014, 03:12 PM
RE: 4-banger? - Paul Dale - 01-28-2014, 05:32 AM
RE: 4-banger? - d b - 01-28-2014, 08:57 AM
RE: 4-banger? - Paul Dale - 01-28-2014, 10:10 AM
RE: 4-banger? - walter b - 01-28-2014, 11:52 AM
RE: 4-banger? - Sanjeev Visvanatha - 01-28-2014, 12:53 PM
RE: 4-banger? - Marcus von Cube - 01-28-2014, 03:21 PM
RE: 4-banger? - d b - 01-28-2014, 04:46 PM
RE: 4-banger? - walter b - 01-28-2014, 05:08 PM
RE: 4-banger? - Didier Lachieze - 01-28-2014, 05:28 PM
RE: 4-banger? - Massimo Gnerucci - 01-28-2014, 07:23 PM
RE: 4-banger? - d b - 01-28-2014, 06:30 PM



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