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2022.06.03 added links to LisaList1 and LisaFAQ to the General Category

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 1 
 on: Yesterday at 03:43:43 pm 
Started by Pascalg - Last post by rayarachelian
Thank you very much Pascal. No worries about rules, long as it's Lisa/Lisa related, it's all good.

 2 
 on: Yesterday at 03:38:11 pm 
Started by Pascalg - Last post by Pascalg
Hello,

I'm in the process of dumping the Lisa software that I have and I will upload them to the Files section (I have already started).

Are there any specific rules for posting files ?

Pascal.

 3 
 on: Yesterday at 09:40:28 am 
Started by rayarachelian - Last post by rayarachelian
There's a small, flippant, mention of using the Apple Lisa in the creation of the Atari ST GUI in this talk, at 1:00:00, https://youtu.be/_9smZU0iZj8
(In Search Of the Original Wooden PET - Leonard Tramiel), the story starts a bit earlier, around 52mins, where after the purchase of Atari (which was losing $2M/day from Warner, and the layoff of 1000 people out of 1200), they pivoted to creating a new 68000 machine, and went to shop for a GUI at both Microsoft (for Windows) and DRI (for GEM).

Maybe this explains why CP/M68 (and possibly GEM) were never released for the Lisa, perhaps because it might compete with the ST/TOS.

(You can use this link if you're allergic to Google tracking: https://yewtu.be/_9smZU0iZj8)

 4 
 on: Yesterday at 06:59:35 am 
Started by stepleton - Last post by stepleton
Noting with interest!

I'm 100% unfamiliar with the practice of converting PAL equations to state machines, but your post is the second time I've heard mention of it. The equations themselves seem pretty complicated, so some other representation of what's going on seems very useful!

My current primary retro project isn't Lisa-related (I have a handful of Transputers inside of an IBM AT that I have to make do something interesting for an exhibition in about a month!), but this certainly makes me interested to return to the problem.

I also had missed or forgotten Ray's identification of a checksum algorithm at work.

 5 
 on: September 24, 2022, 10:23:15 am 
Started by compu_85 - Last post by rayarachelian
That's awesome! Love the Rick & Morty one! Spot on!  Happy voyage!

 6 
 on: September 24, 2022, 10:18:04 am 
Started by compu_85 - Last post by compu_85
I'm in the middle of a move from VA to WA. One consideration I had was how to move my Lisas safely. Turns out the trunk and footwells of my old Mercedes make the perfect Lisa transport pod... 3 fit in the trunk, and one fits in each rear footwell. With some blankets to protect the seat, this makes a good place to stack on Daisy Wheel Printers, and LaserWriters. Then the whole thing gets draggged behind the moving truck.

Also, check out the lovely Lisa covers my mother made! I told her I'm sure others would be interested in having one made. They've got a bit of padding between the quilted layers.

Because the NCR PC4 has nearly identical dimensions to the Lisa, the covers fit it too.

-J

 7 
 on: September 23, 2022, 06:54:40 pm 
Started by stepleton - Last post by sigma7
* An additional item to disentangle is the PAL chip---the equations for it live on Bitsavers, but it's a bit too hard for me to understand on its own. It'll probably be useful to interpret what it does from the point of view of the Z8, which manipulates some of its inputs.

Using Palasm 4 to disassemble the 341-0180.JED fusemap file into raw equations...

My next step would be to replace the signal names with intelligible ones (eg. guesses derived from the schematic) and convert the equations into state machine format.

I have a vague recollection that PALASM had a utility to create a state machine from equations, but the manual is not at hand... will come back to this if I uncover it.

Code: [Select]
TITLE FILE LISANET.JED DIS-ASSEMBLED
PATTERN 001
REVISION 001
AUTHOR VOLTAGE CONTROLLED COALITION
COMPANY AMD, SANTA CLARA
DATE 01-01-80

CHIP DIS_ASM PAL16R8

PIN 1 CLK
PIN 2 I2
PIN 3 I3
PIN 4 I4
PIN 5 I5
PIN 6 I6
PIN 7 I7
PIN 8 I8
PIN 9 I9
PIN 10 GND
PIN 11 OE
PIN 12 R12
PIN 13 R13
PIN 14 R14
PIN 15 R15
PIN 16 R16
PIN 17 R17
PIN 18 R18
PIN 19 R19
PIN 20 VCC

EQUATIONS

 /R19:=   I2
      +                /R14 * /R13
      +         /R15 *        /R13
      +         /R15 * /R14
      +          R15 *  R14 *  R13

 /R18:=          I6
      +  /I5  *        /R18 *  R15 *  R14 *  R13 *  R12
      +                              /R14 *  R13
      +                               R14 * /R13
      +                        R15 * /R14 * /R13
      +  /I5  *               /R15 * /R14 * /R13

 /R17:=   I5  * /I6  *         R15 *  R14 *  R13 *  R12
      +         /I6  * /R17 *  R15 *  R14 *  R13 *  R12
      +         /I6  *                       R13 * /R12
      +         /I6  *                R14 * /R13
      +         /I6  *        /R15 *         R13 *  R12
      +         /I6  *         R15 * /R14
      +   I5  * /I6  *        /R15 * /R14 * /R13

 /R16:=          I5  * /I6  * /R15 * /R14 * /R13
      +                               R14 *  R13 * /R12
      +  /I2  *                R15 * /R14 *  R13 * /R12
      +                        R15 *  R14 * /R12
      +                /I6  *         R14 * /R13 * /R12
      +                /I6  * /R15 * /R14 *  R13 *  R12

 /R15:=  /I2  *        /I8  * /I9  *         R15 * /R14 * /R13
      +  /I2  *         I8  *  I9  *         R15 * /R14 * /R13
      +         /I6  *                       R15 * /R14
      +                                      R15 *  R14 * /R13
      +                                      R15 *  R14 *        /R12
      +         /I6  *                R18 *  R15 *  R14 *  R13 *  R12
      +  /I2  *                              R15 *  R14 *  R13 *  R12

 /R14:=  /I2  *        /I8  * /I9  *  R15 * /R14 
      +  /I2  *         I8  *  I9  *  R15 * /R14
      +         /I6  *                R15 * /R14
      +                              /R15 *  R14

 /R13:=                              /R15 * /R14 *  R13 * /R12
      +                                      R14 * /R13
      +         /I6  *               /R15 * /R14 *  R13 *  R12
      +  /I2  *         I8  * /I9  *  R15 * /R14 *  R13
      +  /I2  *        /I8  *  I9  *  R15 * /R14 *  R13
      +  /I2  *         I8  *  I9  *  R15 * /R14 * /R13
      +         /I6  *                R15 * /R14 * /R13
      +  /I2 *         /I8  * /I9  *  R15 * /R14 * /R13

 /R12:=  /I2  *                      /I8  * /I9  *        /R15 * /R14 * /R13
      +  /I2  *                       I8  *  I9  *        /R15 * /R14 * /R13 
      +          I4  *  I5  * /I6  *                      /R15 * /R14 * /R13 * /R12
      +         /I4  *  I5  * /I6  *                      /R15 * /R14 * /R13 *  R12
      +  /I2  *                      /I8  * /I9  *                             /R12
      +  /I2  *                       I8  *  I9  *                             /R12
      +                       /I6  *                      /R15 * /R14 *  R13 *  R12
      +                                            /R16 *                      /R12
     

edit: aligned columns per equation (for monospaced font)

 8 
 on: September 23, 2022, 01:10:41 pm 
Started by fri0701 - Last post by patrick
ROM language depends on the keyboard connected. With a German keyboard,  the ROM messages are in German, with a French keyboard in French etc. If you open your keyboard,  you'll find a DIP switch, or at least the place to fit one. Here you can set the keyboard layout / language.

 9 
 on: September 23, 2022, 01:09:38 pm 
Started by fri0701 - Last post by stepleton
So far as I know, there was only one ROM, but the ROM has French and German strings in addition to English. You can find them in the source code: search for the string "GETESTET" for example.

If you scroll to $364E in the code, you can see that the ROM determines the language of your keyboard and chooses which messages to show on that basis. If you have a US or UK keyboard, you get English. If you have a German or a French keyboard you get German and French messages respectively. If you have any other kind of keyboard, the ROM will show you all three languages at once in hopes that you can understand at least one of them!

 10 
 on: September 23, 2022, 12:47:34 pm 
Started by fri0701 - Last post by blusnowkitty
Was anyone aware that the Lisa ROM itself had international translations, too? I found this Lisa on eBay Kleinanzeigen (German Craigslist/FB Marketplace?) and guess what? The ROM is in German! (Also notice that curious little toggle switch, I bet that's a video mod switch.)

https://www.ebay-kleinanzeigen.de/s-anzeige/apple-lisa-2/1792715326-228-6542

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