Apple II

Death by interrupts - ugh

Submitted by jrubin on August 21, 2017 - 8:08pm

Apple II interrupts, its like the solar eclipse, strangely, you want to stare at it but you know you'll go blind for doing so. Its like whatever OS you booted with is going to destroy any jump vectors in memory so whats it all about? Finding yourself having to read prodos manuals for MLI code for IRQ installation!! This is terrible.... Im finding little tidbits of info, but it assumes different run strategies were used so that DOS doesnt destroy interrupts. This is how i do it on a commodore below for NMI or IRQ

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Apple II

Apple IIc Mobile With WiFi

Submitted by 6502enhanced on August 19, 2017 - 3:45am

Finished my "Apple IIc Mobile With WiFi" project.

IMAGE(https://s2.postimg.org/vjjmlh4ex/Apple_IIc_Mobile_With_Wi_Fi.jpg)

IMAGE(https://s2.postimg.org/3ku28cs61/Full_Size_Render-1.jpg)

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Apple II

IIGS Stack

Submitted by wishtoknow on August 14, 2017 - 11:20pm

According to the tech manual, you are allowed to
have the stack anywhere you like and upto 64K.

Does anyone know if you can have multiple stacks?
If so, how is this done?

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Apple II

Help with Modem MGR Apple ][+

Submitted by iamharuhi on August 14, 2017 - 1:33pm

I recently got my Apple ][+ working again and have been trying to install a compatible modem software so I could dial into my own linux server. So far I have gone with Modem MGR for it's compatibility. I was able to successfully install the settings to have it boot in 80 column mode and get to the menu. Unfortunately one of the menu items is missing. From watching videos of other people doing the same thing they use ":" to enable VT100 emulation. I don't have this option on my menu and I was wondering if I didn't have the right version of the software.

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Apple II

ALF MC16 compatible hybrid synthesizer

Submitted by stynx on August 13, 2017 - 2:25pm

analog sound generation for my Apple II :-D

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Apple II

Classic IDE for Apple II

Submitted by protek on August 10, 2017 - 7:08am

I recently placed a preorder for one of these cards. The batch is estimated to ship next October. My IIGS has been lacking a decent hard drive until now. I have the SD Disk II that can emulate hard drive images too but it's not very speedy, so I thought I'd give Classic IDE a go now that they have a new batch coming up.

Has anyone here one of these cards?

http://www.tecnobytes.com.br/p/classic-ide-for-apple-ii.html

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Apple II

Possible fried chips on Apple II+

Submitted by dafivehole on August 7, 2017 - 11:55am

I picked up a pristine II+ years ago but the original owner says that he thinks he fried a ROM chip and possibly others... I have never plugged it in, in fear that it would blow up on me Smile

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Apple II

Apple IIe - Intermittent random characters displayed on boot

Submitted by m_leddleton on August 5, 2017 - 8:01am

Hi everybody, I have just got myself an Apple IIe for the very first time. I have not used anything apple before especially not older stuff so I am still learning the ropes!

I have put a new capacitor in the power supply because that blew up the first time I turned it on. That all seems to work fine so first repair is a success!

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Apple II

Diagnosing screen artifacts

Submitted by CWJ_Wilko on August 3, 2017 - 10:04pm

You occasionally see a 'for parts' Apple ][ on eBay or other sites that is throwing up some garbage characters or graphics onto the screen. Is there a page or document that categorises these artifacts into possible points of failure? My machines are working at the moment but I feel like a handy reference guide could save me some trouble in the future.

I don't recall seeing anything like this in the Technical Reference Manual or elsewhere, but apologies if it's in an obvious place.

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Apple II

Can anyone tell me what revision this board is?

Submitted by acidrain97 on August 2, 2017 - 2:54pm

607-0187-a This is an enhanced //e Rev A or B?

I am having problems with the 80 extended column card. It keeps up giving ram errors. I have tried 2 cards with part # 607-0103-k No jumper on the board. without the board the //e passes its self tests. I really need help with this thanx.

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Apple II

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