HP33C radix is a comma

[Gerson W. Barbosa]

(06-17-2018 04:33 PM)Dieter Wrote:  

(06-16-2018 06:50 PM)Gerson W. Barbosa Wrote:  About 30 years ago I went through the trouble of burning a new EPROM for my MSX computer just because of that.

Now that you mention it: I remember I had a patched version of the Turbo Pascal runtime library to get a decimal comma instead ot the usual point in the compiled .exe file. ;-)

On second thought there was no need to burn an EPROM since on MSX computers it was possible to exchange ROM and RAM banks through a slot-switching operation and then making the desired changes in RAM (a BASIC program with parts is Assembly was required). But I did burn an EPROM to change some default function keys descriptions (for example, cload" to bload" since by that time the former ( cassette load ) was not used anymore.

(06-17-2018 04:33 PM)Dieter Wrote:  Looking at your screenshot and the BASIC code I wonder how this interfered with the comma in PRINT statements: In BASIC the comma is used for printing tabulated data: So in a standard environment PRINT 12,345 returns

 12         345

I changed only the outputs (an easy task as I had The MSX Book which gave information on what ROM regions to check), but the decimal-points kept being entered as such. Thus, I would enter

20 PRINT 12.345

which would list as

20 PRINT 12,345!

the "!" was automatically added to indicate a real single precision number.

On the other hand, if the line were entered as

20 PRINT 12,345

the corresponding listing would be exactly the same and upon execution it would return what you have suggested.

(I've just checked these out on the emulator).

(06-17-2018 04:33 PM)Dieter Wrote:  

(06-16-2018 06:50 PM)Gerson W. Barbosa Wrote:  Fortunately, on the HP-33C it is just a matter of rewring a jumper (for me it was even easier, I just had to cut it out).

(06-17-2018 04:33 PM)Dieter Wrote:  Fortunately, on the '41 it is just a matter of setting/clearing a flag. ;-)
After a master clear (MEMORY LOST) the first thing I do is a CF 28.

Just as easy on the HP-15C as well (a simple ON/. operation).

(06-17-2018 04:33 PM)Dieter Wrote:  

(06-16-2018 06:50 PM)Gerson W. Barbosa Wrote:  From Katie Wasserman's website:

Yes, these are the pictures linked in the old thread Sylvain referred to.

You are right. Sorry for the redundancy!

Gerson.