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Bugs
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2009-11-14
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Canonical Bug List
ABasic bugs:
ABasiC Animate command----- Give up on this. The 1st page
of the errata, referring to page R-96 "Note that the animate command might
not be currently be implemented." C-A had hoped to get this in and working
before the V1.0 release but it just didn't happen. It is, in fact not
implemented. Your Amiga Basic upgrade DOES do animation.
The "_" at the end some of the lines is put there by ABasiC when you press
the down-arrow key at that point. This will cause a LF/CR/TAB-7 to start the
next line indented to right under the beginning of the last excluding the
line number.
SPECIAL NOTE:
There is apparently a bug in ABasiC in regard to the color used for the
cursor and OUTLINEs. In the above example, register 3 is only used for these
functions if the number of bit planes (in the SCREEN command) is 2. What is
apparently happening is that the cursor/outline color is the "highest
different color". Thus:
# of bitplanes C/O Register
============== ============
1 1
2 3
3 7
4 15
5 31
( Remember the registers are numbered 0-31 )
SPEECH
Contrary to what the ABasiC manual says, to get that rise at the end of a
sentence that makes it a question, LEAVE OFF ALL PUNCTUATION. The question
mark seems to act like a period.
FILE ACCESS
Conrary to the manual, LOF(n) returns the number of BYTES in the file
REGARDLESS of whether the file is opened as sequential or random access.
Divide by the record length to get the number of records.
RGET will generate an end-of-file error upon reading the last block of the
file. Use code similar to below to process that last block:
1010 ON ERROR GOTO 9010:_
RGET #1, BLK%
1020 ON ERROR GOTO 0 ' Disable ON ERROR
.
. Process the block as you would any other
. It will be padded with blanks
8999 END_
9010 RESUME NEXT ' Returns to 1020
Bugs in ROM Manual
From Gary Girzon, Tue Oct 15
As probably noted earlier, the ROM Kernel manual has a 'few' bugs. Most of
them are flagrant C errors in type casting and pointers. The one that has got
me has to do with the type APTR. If I recall correctly,
typedef APTR *STRPTR
typedef unsigned char *STRPTR
thus APTR -> STRPTR --> unsigned char, so APTR is an address location which
holds another pointer to an array of chars.
However, the ROM manual constantly insists in using APTR to point to a data
buffer ( Actually, the Intuition manual does the same for defining things
like menu text. I am sorry I cannot remember the exact pages). If you do
that, the compiler will complain.
Has anyone gotten the multi tasking example to run? It has the same probelem
in assigning stack pointers using APTR type. My program, even when type cast
and corrected, dies after the 'littletask' is launched. I am very tired of
guru's.
Also, is the console IoRequest structure documented anywhere? The ROM manual
says "more on this latter...". I wish there was an example for console and
serial IO (although that sort of works) similar to the one for audio.
From Perry S. Kivolowitz
The Intuition manual (v1.0) states that ACTIVEWINDOW and INACTIVEWINDOW
are NewWindow flags. They are actually IDCMP flags. If you ``or'' in
ACTIVEWINDOW, you get messages through the IDCMP whenever your window
becomes the active window (message->Class == ACTIVEWINDOW). Similarly
so for INACTIVEWINDOW.
Look at intuition/intuition.h for more information.
I was using these messages in IntuiScope, an intuition utility I am
writing. I wanted to back track out of a menu selection if the IntuiScope
window became deselected.
/* text of Lattice 3.02 bugs, AmigaDOS 1.0 bugs, 1.1 improvements */
Subject: Lattice C V3.03
Date: 30 Oct 85 00:59:31 GMT
From: Bob Page <page%ulowell.csnet@CSNET-RELAY.ARPA>
Here are the problems with Lattice C V3.02 that are fixed in C V3.03:
1. When objects whose size was not a power of two was subscripted with a
short index, long multiplication was performed. Now the multiply is
performed in-line with the MUL instruction.
2. Indirect references with offsets greater than 32K did not work correctly.
3. There were miscellaneous problems with short and character expressions
where the operands were not being extended or masked correctly.
4. Technically invalid declarations were being accepted by the compiler
(e.g., int a(space)b(space)c; instead of int a,b,c;).
5. Expressions like ((a !=0) != 0) were not evaluated properly.
6. When character pointers were converted to other types of pointers the
value was forced to an even value to cause alignment on word boundaries.
This has been removed; Caveat Emptor.
7. Casting an enum to an integral type generated an error message.
8. Initialization of arrays of structures required full use of brackets.
9. Enum declarations caused the compiler to fail on the Amiga, usually
dragging the system down with it.
Feel free to repost this to BIX, the fridge, and anywhere else you'd like.
From bobp@amiga.UUCP (Robert S. Pariseau) Thu Nov 7 03:46:21 1985
Path: gumby!uwvax!seismo!cmcl2!philabs!prls!amdimage!amdcad!amd
!pesnta!greipa!decwrl!pyramid!amiga!bobp
From: bobp@amiga.UUCP (Robert S. Pariseau)
Date: 7 Nov 85 09:46:21 GMT
Reply-To: bobp@snake.UUCP (Robert S. Pariseau)
Organization: Commodore-Amiga Inc., 983 University Ave #D, Los Gatos CA 95030
No Curt, you've read that backwards. The V1.0 manual says that OpenLibrary()
will work if the library it finds has a version number equal to or greater
than the one you requested. That manual also says (in the Libraries
chapter), that as of this writing, the requested version number should be 0.
For various compatability reasons, we had to disable the version checking in
OpenLibrary() and OpenDevice() for V1.0. This was due to the pre-release
software having version numbers like 29 (sigh).
We currently plan to re-install the version checking for V1.1. We will
maintain compatability by using library version numbers like 101 (for 1.1
yes?). In addition, the version checker will treat any requested version
number of 100 or less as if you requested version 0. Thus old code asking
for version 0 will continue to work and even older code asking for version 29
will continue to work.
Any code dependent upon the new features in a V1.1 library should ask for
version 101. This gives you a clean way to back out if the user tries to run
your new program under a V1.0 Kickstart or with the V1.0 libraries and
devices found on the Workbench disk.
From: rodb@tektronix.UUCP (Rod Belshee )
Date: 25 Oct 85 20:23:02 GMT
Organization: Tektronix, Beaverton OR
I previously posted a FLAME about the documentation. After speaking with
AMIGA support I have calmed down a bit.
It seems that there is a discrepancy between the First half and the Last half
of the manual.
In particular the interface definition of the MakeVPort(&v,&vp,&ri,&ri)
calls in the front and the MakeVPort(a0,a1) assembler interface definition
in the back.
TRUST THE ASSEMBLER INTERFACE DISCRIPTION.
Amiga is redoing the ROM Kernal Manual and it should be out soon.
For those of you who care, the following changes have to be made to the
program found on page 8-29.
1. change include <hardware/dma.h>
include <hardware/dmabits.h>
2. delete inlcude <hardware/regs.h>
3. change BitMap *b
BitMap b
4. delete OFF_DISPLAY
5. delete ON_DISPLAY
6. delete call to Panic()
7. change "graphics"
to "graphics.library"
8. add.*******
vp.RastInfo = &ri; before MakeVPort call
9. delete last 2 parameters in the call to MakeVPort();
I forgot to ask but I don't think the call to Debug should be
there either.
If anybody else gets' info please take a minute to post it
thanks.
Curt Jutzi
tektronix!gpp1!golem!jutz
tektronix!rodb