HP Forum Archive 21

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Update of Emu71 to v1.04 Message #1 Posted by Christoph Giesselink on 16 Apr 2013, 5:09 p.m. So the questions about calculator speed and sound samples for the HP71B are coming to an end. Here's the result. Emu71 v1.04 is available at http://hp.giesselink.com. Changes to v1.04: native sound support (true emulation) over the OUT=C opcode TNX to Franz for fixing his KMI keyboard include files Also a big TNX to Gerson. He pushed me with his question about sound output on Emu71 to continue my work on sound emulation I quit 10 years ago when I tried to implement this on Emu48. To activate the sound emulation you must remove all ROM beep patches in your KML files please. Finally you should power cycle all your HP71B sessions to initialize the CSPEED calculator RAM variable to a reasonable clock speed value. Christoph

Re: Update of Emu71 to v1.04 Message #2 Posted by Namir on 17 Apr 2013, 1:22 a.m., in response to message #1 by Christoph Giesselink Thanks for the update. Came just in time as I wrote a submarine hunt program for the HP-71B (and the HP-41CX and the Sharp PC-1350) and needed the BEEP command to work to give an audible notification when either the player or the calculator scored a hit. Namir

Re: Update of Emu71 to v1.04 Message #3 Posted by Mike (Stgt) on 17 Apr 2013, 7:05 a.m., in response to message #1 by Christoph Giesselink Sounds good. :) Ciao.....Mike BTW: You emphasise on _true emulation_. So what I hear is real, not simulated. I am virtually certain.

Re: Update of Emu71 to v1.04 Message #4 Posted by CompSystems on 17 Apr 2013, 8:41 a.m., in response to message #1 by Christoph Giesselink Waiting Emu48 sound emulation thanks =) I tried the serial port emulation of emu48PocketPC and Emu48 with a PC, calculator and microcontroller and it works perfect =), I'll upload some videos soon ... Request: Please new keyword for Lcd: Grid INTEGER 0 == without gride, >0 == number of pixels of separation between pixels LCD command block Lcd Zoom INTEGER Zoomxy INTEGER INTEGER Grid INTEGER Vertical INTEGER Offset INTEGER INTEGER Color INTEGER INTEGER INTEGER INTEGER End To increase the realism of the LCD must separate the pixels, the pixels on a computer screen are close together, while a Real calculator not, as the following image Good idea to be implemented on emulators? +1 Edited: 17 Apr 2013, 9:01 a.m.

Pixels with a gap Message #5 Posted by Mike (Stgt) on 17 Apr 2013, 1:07 p.m., in response to message #4 by CompSystems Hello! You show a very nice photo of a very ugly display. The gaps between the pixels are too big, the dpi quite low, so I do have problems to read this display. You suggest a variable gap between pixels. i) Which HP calculator does offer a similar feature? ii) In the photo you show the display-"dots" are about 12x12 pixels (of the photo), the gaps about 4 pels wide, so the ratio is ~3/1. As the gap can not be smaller than one pixel the minimum dot+gap space will be 4x4 pixels. To get smaller gaps you must draw bigger dots, 4+1 or 5+1 (dot+gap). Now multiply this with the display resolution of an HP48 to get the virtual calculator's screen size, next zoom a photo of the calculator accordingly so the emulator's display fits nicely. And now tell me if your CRT or monitor or LCD projector or whatever you use with your PC has a big enough resolution to show all calculator keys you need to get any use out of it. To simulate the display as close as possible to the original is not trivial. Some calculators have "italic" numbers, have a small slant angle. To make an illusion of this on your PC screen with only upright pixels you need halftone rendering. What leads to another long term pipe dream: stepless zooming. Rusty Wagner's vTI offers this feature, alas with a somewhat poor rendering so only discrete zoom factors are useful. BTW, I do not know where to get a good rendering algorithm (even the Paint Shop Pro I use offers serval for resizing photos) and if I had one I would not know how to implement it in the calculator emulator. I could immagine to keep a hidden view of the calculator and display it zoomed with a free tool like LXpic. You see, I have a list of wishes too but not time to get there. Ciao.....Mike

Re: Pixels with a gap Message #6 Posted by CompSystems on 17 Apr 2013, 3:07 p.m., in response to message #5 by Mike (Stgt) Real LCD can be seen in the following emulators I send this request to the authors of Graph89, calc92+, Casio PB1000 and was accepted =) Graph89 (Android-OS) this feature has been incorporated latest version 2013 https://play.google.com/store/apps/details?id=com.Bisha.TI89EmuDonation calc92+ (Android-OS) latest version 2013 https://play.google.com/store/apps/details?id=org.natygames.emu.ti92plus& Sharp http://www.gomzik.adslink.cz/calc/sharp.html Casio PB1000 http://www.unalmed.edu.co/~ameza/calcs/calcEmu-CasioPB1000.zip Edited: 17 Apr 2013, 3:19 p.m.

Re: Pixels with a gap Message #7 Posted by CompSystems on 17 Apr 2013, 3:23 p.m., in response to message #6 by CompSystems Request2: implement Zoomxy on Emu48, with this feature I can see better a LCD small screens PocketPC (240*320)pxls Zoomxy INTEGER INTEGER Edited: 17 Apr 2013, 3:26 p.m.

Re: Pixels with a gap Message #8 Posted by Mike (Stgt) on 18 Apr 2013, 4:29 a.m., in response to message #7 by CompSystems "Things that make me wanna say Hmmm..." C+C Music Factory Well, what you'd like to show with all this examples? i) which one looks closest to the original? ii) which one is the most useful? Ciao.....Mike

Re: Pixels with a gap Message #9 Posted by Mike (Stgt) on 18 Apr 2013, 4:11 a.m., in response to message #6 by CompSystems Sorry, I am _not_ the author of Emu48, so I am not in possition to accept or decline your request, I only added my 0,02$. Ciao.....Mike BTW, the only SW currently available from me is this. Ah, no... Angel Martin used something in his compilations for the HP41 :)

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