TweetFollow Us on Twitter

Jul 85 Mousehole
Volume Number:1
Issue Number:8
Column Tag:Mousehole Report

Mousehole Report

Printing and the Tecmar

MacoWaco

Nothing will get my Tecmar to let my Imagewriter print. Then on top of that, I tried Finder 4.1 on it and I can't copy a file onto it!

Tecmar and Finder 4.1

Rusty Hodge

I have heard from some people that the "new" imagewriter driver and Finder 4.1 cause the Tecmar's print spooling to go out to lunch. It may be that reformatting is the only solution. Finders 3.3x and above need to be patched to have the "verify" routine no-opped.

Finder Patch for Tecmar

Macowaco

The patch for the Tecmar Finder is the following: change A002 57CA FFE2 to 4E71 4E71 4E71 using FEDIT. The second A002 fround using the Hex Search is it. Eliminates the "Verify" routine used in 4.1, but not used on earlier Finder's before 3.3x.

Rom Bug for I/O Traps

(name withheld to protect the guilty)

The effect of this bug is that if you perform an I/O trap call within an SCC interrupt routine or within a VBL task, your Macintosh may bomb. Assume A0 contains the pointer to the I/O parameter block:

403924:       LEA    $360,A1        ; pointer to file system queue header
403928:       JSR      *-$2E08      ; Enqueue pb (A0) on file system 
queque (A1)
40392C:       MOVE SR, -(SP)        ; save status 
40392E        ORI      #$300,SR     ; disable SCC and VBL interrupts
403932:       BSET       #0,$360    ;set file system busy bit

Suppose an SCC or VBL interrupt occurs during execution of the instruction at 40392C. At this time, the parameter block had been enqued on the file system queue, but the busy bit has not been set. If the interrupt handler performs an I/O trap, then that I/O as well as the one in the queue will be completed before the interrupt handler returns. When it does return, the file system queue is empty, and the instruction at 403932 sets the busy bit. Code following 403932 then attempts to dequeue a parameter block and execute it's command code, causing a bomb.

A similar sequence of code for device drivers begins at 40118E. This code exhibits the same problem except that the timing hole is two instructions wdie. Thus, if the file system or a device driver queue is not empty and the busy bit is not set, you MUST NOT perform the I/O trap.

What is the solution? Simple. If the queue is not empty and the busy bit is not set, set the busy bit yourself, perform your async I/O trap, and reset the busy bit. Hence, your I/O is simply enqueued, and when you return, the interrupted ROM code precesses the queued I/O calls correctly. This bug is known at Apple and will be fixed in the next ROM.

Finder 4.1 Bug

Dave Kelly

While trying to do a disk copy using the Finder, the destination disk's ICON disappeared and the startup disk commenced to copy itself onto ITSELF! I restarted everything by hitting reset but the Finder was missing from the system folder. Something is kind of fishy here. Anyone else see any weird things like this?

[Yes, I have had icons disappear or move erratically under Finder 4.1. I assume it is a warning the Finder or desktop has been trashed and it's best to shut down at once. Version 4.1 definitely has a bug related to tracking icons on the desktop. -Ed.]

More Finder 4.1 Icon Bugs

Macin Stosh

Finder 4.1 seemed to be working great until I got a "Disk needs minor repairs..." alert. When I checked the desktop, I noticed half the files had lost their icon pictures. Here's an interesting way to make your write 4.5 bomb: go to the search and replace window and hit "Command-Enter"...

Paste into the Calculator

Ant Killer

Did you know that you can paste what's in the clipboard to the calculator and it will work just like you had typed it in? (Well, it does.)

New Software Releases

Video Whiz

Just got the new "Official" update stuff from Apple; Write 4.5, Paint 1.5, Finder 4.1 and a new combo Font/Desk accessory Mover. The new paint allows "smoothing" with the Laser to increase resolution.

Thunderscan / Appletalk bug

Brett

Thunderscan uses the battery-backed up RAM and in fact looks at a location used by Appletalk. Removing the battery for 30 seconds after turning off the computer will clear memory and allow the thunderscan to work (until you use Appletalk again).

Product description on the 20 meg disk using the external drive connector is expected shortly. [What about recent announcements that Apple was shutting down the disk project in favor of buying the technology on the outside? -Ed.]

Building Drivers

Bob Denny

To build a driver, start your assembly with a RESOURCE directive:

RESOURCE    'DRVR'     id     '.XXX'      atr

where "id" is the resource ID, "atr" are the resource attributes (usually at least system heap). The above example will give a driver names ".XXX". Following the RESOURCE directive, code the driver flags words, then the driver dispatch table. Note that the dispatch table does not need to be coded using offset. Just do this:

DC.W    Open
DC.W    Prime
... etc.

The link'll do the rest. (Note the linker will not resolve references across mutiple .REL files in the /RESOURCES section. Your driver must end up as a single .REL file.) The key to understanding how the MDS assembler and linker handle code resources is that the linker will resolve all relocatable references against a base "address" of zero. Therefore the use of the driver routine lables as shown above will automatically translate to offsets to the repective entry points. Neat, eh? Just keep the rest of the driver "position independent".

Next link the driver with a control file like this:

/OUTPUT XXX.DRVR
/TYPE 'ZSYS' 'MACS'
/RESOURCES
XXX.REL

$

The /type directive makes the driver image file have the "little Mac" icon like the finder and sytem. It's optional.

Greyed-Out Text

Bob Denny

Someone asked how to gray out text. Text is grayed out by painting it's enclosing rectangle with "GRAY" pattern and the pen in BIC mode. Apparently you can't just write gray text. Here is the code from the defProc for buttons, with my comments:

MOVE.L   A4, -(SP)    ; (SP) -> button rect
MOVE.L   #$00010003, -(SP) ; shrink amt.
_InsetRect                                 ;shrink rect.

MOVE.L   A4, -(SP)      ; (sp)=shrunken rect
MOVE.L   (A5), A0       ;A0=>QD globals
PEA   Gray(A0)      ; (sp)=gray pat
_PenPat                   ;make pen gray
MOVE    #patBIC, -(SP)  ;bit-clear BIC mode
_PenMOde          ; make bit-bashing pen
 
_PaintRect           ; BIC-out text rectangle

_PenNormal
MOVE.L     A4, -(SP)          ; (sp)-> shrunk rect
MOVE.L    #$FFFFFFFD, -(SP)  ; expand
_InsetRect      ; expand button rect.
 
AAPL
$112.65
Apple Inc.
+3.24
MSFT
$47.52
Microsoft Corpora
+1.78
GOOG
$511.10
Google Inc.
+6.21

MacTech Search:
Community Search:

Software Updates via MacUpdate

BBEdit 11.0.2 - Powerful text and HTML e...
BBEdit is the leading professional HTML and text editor for the Mac. Specifically crafted in response to the needs of Web authors and software developers, this award-winning product provides a... Read more
ExpanDrive 4.2.1 - Access cloud storage...
ExpanDrive builds cloud storage in every application, acts just like a USB drive plugged into your Mac. With ExpanDrive, you can securely access any remote file server directly from the Finder or... Read more
Adobe After Effects CC 2014 13.2 - Creat...
After Effects CC 2014 is available as part of Adobe Creative Cloud for as little as $19.99/month (or $9.99/month if you're a previous After Effects customer). After Effects CS6 is still available... Read more
Command-C 1.1.7 - Clipboard sharing tool...
Command-C is a revolutionary app which makes easy to share your clipboard between iOS and OS X using your local WiFi network, even if the app is not currently opened. Copy anything (text, pictures,... Read more
Tidy Up 4.0.2 - Find duplicate files and...
Tidy Up is a complete duplicate finder and disk-tidiness utility. With Tidy Up you can search for duplicate files and packages by the owner application, content, type, creator, extension, time... Read more
Typinator 6.3 - Speedy and reliable text...
Typinator turbo-charges your typing productivity. Type a little. Typinator does the rest. We've all faced projects that require repetitive typing tasks. With Typinator, you can store commonly used... Read more
GraphicConverter 9.5 - Graphics editor w...
GraphicConverter is an all-purpose image-editing program that can import 200 different graphic-based formats, edit the image, and export it to any of 80 available file formats. The high-end editing... Read more
Toast Titanium 12.0.1 - The ultimate med...
Toast Titanium goes way beyond the very basic burning in the Mac OS and iLife software, and sets the standard for burning CDs, DVDs, and now Blu-ray discs on the Mac. Create superior sounding audio... Read more
QuickBooks 2015 16.0.2.1422 R3 - Financi...
Save 20% on QuickBooks Pro for Mac today through this special discount link QuickBooks Pro 2013 helps you manage your business easily and efficiently. Organize your finances all in one place, track... Read more
Remotix 3.0.6 - Access all your computer...
Remotix is a fast and powerful application to easily access multiple Macs (and PCs) from your own Mac. Features: Complete Apple Screen Sharing support - including Mac OS X login, clipboard... Read more

Latest Forum Discussions

See All

The Hit List — Simply Powerful Tasks, To...
The Hit List — Simply Powerful Tasks, To-Dos, Projects, & Reminders 2.0 Device: iOS iPhone Category: Productivity Price: $9.99, Version: 2.0 (iTunes) Description: >> LAUNCH SPECIAL: The Hit List 2 for iPhone is ONLY $9.99... | Read more »
Mahjong Journey Review
Mahjong Journey Review By Jennifer Allen on December 18th, 2014 Our Rating: :: STEADY MATCHINGiPad Only App - Designed for the iPad Aimed at the more laid back gamer, Mahjong Journey isn’t for everyone, but those looking for some... | Read more »
Emoji Type - custom keyboard with predic...
Emoji Type - custom keyboard with predictive emojis 0.4.0 Device: iOS iPhone Category: Utilities Price: $.99, Version: 0.4.0 (iTunes) Description: Emoji Type is custom keyboard for iOS 8 that auto suggests emojis as you type. ABOUT... | Read more »
Game of the Year 2014 – 148Apps Staff Pi...
The end of 2014 is almost here, which can only mean one thing. Okay it can mean a lot of things, but in this specific context it means Game of the Year lists! Which is why the 148Apps staff have all picked their favorites from the past year. And why... | Read more »
UponPixels Review
UponPixels Review By Jennifer Allen on December 18th, 2014 Our Rating: :: CREATIVE TYPOGRAPHYUniversal App - Designed for iPhone and iPad Add cool typography and objects to your photos with the easy to use UponPixels.   | Read more »
The Vikings are Coming! CastleStorm’s Ne...
The Vikings are Coming! CastleStorm’s New Update Adds a Survival Mode Posted by Jessica Fisher on December 18th, 2014 [ permalink ] | Read more »
Duet Display (Productivity)
Duet Display 0.3.3 Device: iOS Universal Category: Productivity Price: $9.99, Version: 0.3.3 (iTunes) Description: Duet Display allows you to use your iPad or iPhone as an extra display. Developed by a team of ex-Apple engineers,... | Read more »
Dragon Quest III Review
Dragon Quest III Review By Jennifer Allen on December 18th, 2014 Our Rating: :: DATED BUT NOT WITHOUT MERITUniversal App - Designed for iPhone and iPad A walk down memory lane isn’t foolproof for Dragon Quest III, but it has its... | Read more »
8 KEMCO JRPGs Are Just $0.99 in Celebrat...
8 KEMCO JRPGs Are Just $0.99 in Celebration of the Holidays Posted by Jessica Fisher on December 18th, 2014 [ permalink ] KEMCO has announc | Read more »
Brothers in Arms 3: Sons of War Review
Brothers in Arms 3: Sons of War Review By Jennifer Allen on December 18th, 2014 Our Rating: :: FUN BUT PUSHYUniversal App - Designed for iPhone and iPad Brothers in Arms 3: Sons of War could be great fun, but its plethora of... | Read more »

Price Scanner via MacPrices.net

Save up to $400 on MacBooks with Apple Certif...
The Apple Store has Apple Certified Refurbished 2014 MacBook Pros and MacBook Airs available for up to $400 off the cost of new models. An Apple one-year warranty is included with each model, and... Read more
Save up to $300 on Macs, $30 on iPads with Ap...
Purchase a new Mac or iPad at The Apple Store for Education and take up to $300 off MSRP. All teachers, students, and staff of any educational institution qualify for the discount. Shipping is free,... Read more
iOS and Android OS Targeted by Man-in-the-Mid...
Cloud services security provider Akamai Technologies, Inc. has released, through the company’s Prolexic Security Engineering & Research Team (PLXsert), a new cybersecurity threat advisory. The... Read more
KMI MIDI K-Board Great Gift for Amateur &...
The K-Board is a MIDI Nano keyboard for music creation for iPad, Android, And computers; the easiest way to make music with iPads & Android tablets, and Mac, Windows, or Linux computers. Ultra-... Read more
Amazon offers 15-inch 2.2GHz Retina MacBook P...
 Amazon.com has the 15″ 2.2GHz Retina MacBook Pro on sale for $1699 including free shipping. Their price is $300 off MSRP. Stock is limited, so act now if you’re interested. Read more
Holiday sales continue: MacBook Pros for up t...
 B&H Photo has new MacBook Pros on sale for up to $300 off MSRP as part of their Holiday pricing. Shipping is free, and B&H charges NY sales tax only: - 15″ 2.2GHz Retina MacBook Pro: $1699... Read more
Holiday sale: Mac minis available for up to $...
 B&H Photo has new 2014 Mac minis on sale for up to $80 off MSRP. Shipping is free, and B&H charges NY sales tax only: - 1.4GHz Mac mini: $459 $40 off MSRP - 2.6GHz Mac mini: $629 $70 off... Read more
Google Search App For iOS Gets A Major Makeov...
Google has given iOS users an early Christmas present with a substantial update of it’s not-very-often-upgraded Google Search app. Google Search has been my go-to tool for Web searches since it was... Read more
ShopKeep Apple Pay And Chip Card Reader Avail...
ShopKeep, a cloud-based technology provider to more than 10,000 small business owners to manage retail shops and restaurants with iPads, has released its new Apple Pay and chip card reader. This... Read more
Holiday sale! 27-inch 5K iMac for $2299, save...
 B&H Photo has the 27″ 3.5GHz 5K iMac in stock today and on sale for $2299 including free shipping plus NY sales tax only. Their price is $200 off MSRP, and it’s the lowest price available for... Read more

Jobs Board

*Apple* Retail - Multiple Positions (US) - A...
Sales Specialist - Retail Customer Service and Sales Transform Apple Store visitors into loyal Apple customers. When customers enter the store, you're also the Read more
*Apple* Retail - Multiple Positions (US) - A...
Sales Specialist - Retail Customer Service and Sales Transform Apple Store visitors into loyal Apple customers. When customers enter the store, you're also the Read more
*Apple* Retail - Multiple Positions (US) - A...
Job Description: Sales Specialist - Retail Customer Service and Sales Transform Apple Store visitors into loyal Apple customers. When customers enter the store, Read more
*Apple* Retail - Multiple Positions (US) - A...
Sales Specialist - Retail Customer Service and Sales Transform Apple Store visitors into loyal Apple customers. When customers enter the store, you're also the Read more
Project Manager / Business Analyst, WW *Appl...
…a senior project manager / business analyst to work within our Worldwide Apple Fulfillment Operations and the Business Process Re-engineering team. This role will work Read more
All contents are Copyright 1984-2011 by Xplain Corporation. All rights reserved. Theme designed by Icreon.