892 lines
28 KiB
Plaintext
892 lines
28 KiB
Plaintext
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#: 17472 S1/General Interest
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03-Feb-93 21:13:48
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Sb: New Forum Software!
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Fm: Steve Wegert 76703,4255
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To: All
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The OS9 forum is now scheduled for conversion to CompuServe's new Message
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Features software on Wednesday, February 4. The conversion will take place
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sometime between 3 AM and 9 AM Eastern and will take approximately 20 minutes,
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during which time the Forum will be closed.
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The Message Features enhancements are described in MSGFEA.DOC, found in the
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REFERENCE LIBRARY, LIB 1. There are many improvements, including a dramatic
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increase in the size limit for messages. Should you encounter any difficulties
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after the conversion, please drop a note to SYSOP.
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Thanks!
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#: 17467 S3/Languages
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02-Feb-93 16:19:23
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Sb: #C question
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Fm: Bill Dickhaus 70325,523
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To: all
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Any idea how I can get the following to compile on the CoCo? It compiles and
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executes just fine on my MM/1. I'm guessing that the definition of func in
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function test() is not correct, but I've tried all the variations I can think
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of.
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/* test4.c
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*/
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static test2();
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main(argc,argv)
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int argc;
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char *argv[];
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{
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test(0, test2);
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}
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test(type, func)
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int type;
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int (*func)();
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{
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(func)();
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}
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test2()
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{
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puts("test2()\n");
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}
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Compiling this source code on the CoCo results in this:
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test4.c : line 16 **** not a function ****
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(func)();
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^
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-Bill-
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There is 1 Reply.
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#: 17469 S3/Languages
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03-Feb-93 09:36:46
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Sb: #17467-#C question
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Fm: Pete Lyall 76703,4230
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To: Bill Dickhaus 70325,523 (X)
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Bill -
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It's been a while since I messed with function pointers (I always have to look
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them up!), but I'm thinking you'd invoke the function by dereferencing it..
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*woof(args);
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Well..
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Just peeking at C++ The Complete Reference (ISBN 0-07-881654-8), page 128
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indicates that you call the function normally..
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func();
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Give it a shot, and let me know... this has always been a weak area for me.
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Pete
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There is 1 Reply.
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#: 17470 S3/Languages
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03-Feb-93 17:01:56
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Sb: #17469-#C question
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Fm: Bill Dickhaus 70325,523
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To: Pete Lyall 76703,4230 (X)
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Pete,
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I just tried that, and that didn't work either. I still think that the problem
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is in the definition of the passed pointer. I'm beginning to suspect that the
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6809 compiler just doesn't know how to handle this particular situation.
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I'm going to post the same question elsewhere, maybe James Jones can shed some
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light.
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-Bill-
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There is 1 Reply.
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#: 17480 S3/Languages
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06-Feb-93 00:17:09
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Sb: #17470-#C question
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Fm: Kim Kempf 71161,3221
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To: Bill Dickhaus 70325,523 (X)
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Try this:
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(*func)()
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Since func is a pointer to a function you need to dereference it. But the
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parens are needed to dereference the function pointer rather than the returned
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value of the function. Hope this helps.
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kim
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There is 1 Reply.
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#: 17482 S3/Languages
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06-Feb-93 08:44:17
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Sb: #17480-C question
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Fm: Bill Dickhaus 70325,523
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To: Kim Kempf 71161,3221 (X)
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Kim,
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Thanks! I knew I was close, but wasn't sure what I was doing wrong. I've used
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pointers to functions before, but not ofte{n enough to remember exactly how it
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all works.
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-Bill-
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#: 17473 S3/Languages
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03-Feb-93 21:56:02
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Sb: #struct pointer trouble
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Fm: GLEN HATHAWAY 71446,166
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To: all
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Hi all... I'm playing with a C function to do graphic fills. I'm using an
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algorithm (and code) from Graphics Gems (edited by Andrew S. Glassner. I'm
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getting lots of errors from the linker like this:
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*** error - value out of range ***
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00042 move.l 80028(sp),d1
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Here are the pertinent parts of the code:
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typedef struct{short y, xl, xr, dy;} segment
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#define MAX 10000
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#define PUSH(Y, XL, XR, DY) \
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if(sp<stack+MAX && Y+(DY)>=0 && Y+(DY)<=maxx) \
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{sp->y=Y; sp->xl=XL; sp->xr=XR; sp->dy=DY; sp++;}
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#define POP(Y,XL,XR,DY) \
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{sp--; Y=sp->y+(DY=sp->dy); XL=sp->xl; XR=sp->xr;}
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fill(x,y,nv)
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int x,y,nv;
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{
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segment stack[MAX], *sp=stack;
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PUSH(y,x,x,1);
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PUSH(y+1,x,x,-1);
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.
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.
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.
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POP(y,x1,x2,1);
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etc.....
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}
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Looks to me like it defines an array of 10000 copies of struct segment, then
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defines a pointer (sp) of type 'segment' to the structures to allow variables
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to be stacked and unstacked 4 at a time.
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Anybody know how to make this work on my MM/1. I'm not enough of a C guru to
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solve it (so far).
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Thanks in advance. Glen Hathaway - COMPER - 71446,166
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There is 1 Reply.
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#: 17476 S3/Languages
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04-Feb-93 11:09:01
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Sb: #17473-#struct pointer trouble
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Fm: Pete Lyall 76703,4230
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To: GLEN HATHAWAY 71446,166 (X)
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Glen -
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If you're using a compiler that's generating 68000 code, your offsets are
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limited to +/- 32K.. anything beyond that requires that you use a 'remote'
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storage class.
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If you're generating code for an 020 or greater, all offsets are 32 bits, and
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no special attention is required.
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Pete
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There is 1 Reply.
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#: 17478 S3/Languages
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04-Feb-93 22:09:48
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Sb: #17476-#struct pointer trouble
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Fm: GLEN HATHAWAY 71446,166
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To: Pete Lyall 76703,4230 (X)
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Hi Pete... You're exactly right! James Jones pointed that out to me last night.
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I downsized the thing and it works great. Probably on really super- complex
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fills it might run out of space, but I haven't killed it yet. Now to refine it
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and convert to assembler... Thanks for the help.
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Glen Hathaway - COMPER - 71446,166
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There is 1 Reply.
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#: 17479 S3/Languages
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05-Feb-93 10:29:35
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Sb: #17478-struct pointer trouble
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Fm: Pete Lyall 76703,4230
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To: GLEN HATHAWAY 71446,166 (X)
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Good Glen -
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I'm glad it all came out well.
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Pete
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#: 17496 S5/OS9 Users Group
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09-Feb-93 12:00:40
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Sb: #For Sale
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Fm: BOB LEET 72020,2536
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To: all
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I am unfortunately going to have to sell my COCO 3 and
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accessories. With engineering schooling, I just don't have time to even
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use it anymore. I have the following for sale:
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1 - COCO 3 512k, 63B09E, 20 meg H/D, 1-3.5" & 1-5.25" floppy,
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all in an custom AT style case, w/ 101 keyboard. It runs
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on a Disto SCII w/ 4-in-1 board.
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1 - COCO 2 64k (white)
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and the following accessories:
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1 - CM-8 monitor
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1 - SlotPak 3 (like Multi-Pak interface)
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1 - RS232 (COCO Pro version)
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1 - 2400 buad modem
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1 - CGP 4-color 4" line drawing graphics printer
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1 - FD502 controller and empty drive case w/ p/s
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1 - full height H/D case with p/s
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1 - spring loaded joystick
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1 - mini graphics drawing pad (for joystick port)
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1 - color mouse
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2 - soft moving joysticks
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2 - Hi-RES Joystick interfaces
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plus all the software and books I have:
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i.e. OS9 Level I & II, Multiview, OS9 Profile, Word Power 3.0
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(excellent word processor), many commercial games, 20-3.5"
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disks full of UUCP library files (all .ar'ed), and many
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more. Books: 6809 machine language, many magazines, COCO3
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repair manual, etc.
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All for $300.00, I'll split shipping. Or, if I get enough individual
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offers, totaling at least $200.00, I'll seperate things.
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Call Bob Leet at (602) 992-3016 or leave a message at
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72020.2536@Compuserve.COM
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There is 1 Reply.
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#: 17519 S5/OS9 Users Group
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12-Feb-93 22:28:58
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Sb: #17496-For Sale
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Fm: Brother Jeremy, CSJW 76477,142
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To: BOB LEET 72020,2536
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Sold to Br. Jeremy, CSJW
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#: 17462 S7/Telecommunications
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01-Feb-93 02:56:29
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Sb: #17459-terminal help
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Fm: Mark Griffith 76070,41
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To: Bob van der Poel 76510,2203 (X)
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Bob,
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>1. Right now you are writing to the screen as soon as you get 10
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>characters in your buffer. If this was increased it would cut down
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>considerably on the overhead involved in system calls. I'd look at
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>increasing the buffer to a full line (or more?) and print it whenever
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>the modem doen't have something, it is full or if a CR is received.
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If you increase that little buffer it makes the screen output very jumpy at
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2400 baud and less. I might be able to adjust the size depending upon the baud
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rate but haven't tried that yet.
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>2. What about sending an xon/off sequence before/after the screen
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>writes (esp. if you increase the buffer size). Hmmm, maybe this would
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>just add too much overhead? Probably. Maybe just if you have a full
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>buffer to print?
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That would slow everything down too much. Also, there are boards and other
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services that don't acknowledge XON/XOFF.
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>3. Finally, what about checking the number of characters ready from the
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>modem. If there are a large number (and a disk capture is being done)
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>you could just dump a whole packet to the disk and not bother to display
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>it. I don't like this...but I'd rather have gaps in the stuff scrolling
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>by than gaps in the stuff in the disk file.
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I don;t like this either.
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I wouldn't worry about it too much Bob. I'll figure out something. You're
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talents would be better served working on projects you have going now.
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/*----------- /\/\ark -----------*/
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#: 17464 S7/Telecommunications
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01-Feb-93 18:30:26
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Sb: #17454-terminal help
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Fm: Bob van der Poel 76510,2203
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To: Mark Griffith 76070,41 (X)
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Mark,
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I just can't help it...I'm a natural born tinkerer. I played with Sterm some
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this weekend and think I have a reasonable solution to the overflowing buffers.
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I have added the following routine to io.c:
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echo_ok()
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{ return (_gs_rdy(mp)>1024) ? 0 : 1; }
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This is a _real_ hack--it _assumes_ a large scf buffer (I have mine set to 4K).
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Anyway, the main loop of sterm has a write() call. I just put a call to
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echo_ok() in front of it:
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if(echo_ok()) write(..);
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The theory is that if there is lots in the scf buffer we are approaching an
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overflow...so don't echo the stuff to the screen. It appears to work okay. Nice
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thing is that the last part of the file or final prompt is displayed. Would be
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better if sterm knew the size of the scf buffer...is there a standard way to
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determine this?
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Oh, I also changed the trigger size for the write from 10 to 80 characters.
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Don't know if this makes any real difference.
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My first attempt wrapped the write() with xon/off sequences. This worked, but
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really undermines the use of 9600 baud. It appears that a MM/1 screen can only
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scroll at about 4800 baud. The other problem with the xon/off popped up when I
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logged onto a RIBBS board which does not recognize xon/off...it kept
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interpreting the xon/off as invalid menu selections.
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#: 17520 S10/OS9/6809 (CoCo)
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12-Feb-93 22:51:13
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Sb: #upload
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Fm: Brother Jeremy, CSJW 76477,142
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To: SYSOP (X)
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The description for GUIB3.ar should read: Guib3.ar GRAPHICS GUI INTERFACE The
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latest in the GuiB (Graphic User Interface for Basic09) Series by Brother
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Jeremy, CSJW.
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There is 1 Reply.
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#: 17521 S10/OS9/6809 (CoCo)
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|
|
13-Feb-93 06:51:37
|
||
|
|
Sb: #17520-upload
|
||
|
|
Fm: Mike Ward 76703,2013
|
||
|
|
To: Brother Jeremy, CSJW 76477,142 (X)
|
||
|
|
|
||
|
|
All taken care of. Thanks!
|
||
|
|
|
||
|
|
#: 17474 S12/OS9/68000 (OSK)
|
||
|
|
03-Feb-93 21:57:04
|
||
|
|
Sb: struct pointer trouble
|
||
|
|
Fm: GLEN HATHAWAY 71446,166
|
||
|
|
To: all
|
||
|
|
|
||
|
|
Hi all... I'm playing with a C function to do graphic fills. I'm using an
|
||
|
|
algorithm (and code) from Graphics Gems (edited by Andrew S. Glassner. I'm
|
||
|
|
getting lots of errors from the linker like this:
|
||
|
|
|
||
|
|
*** error - value out of range ***
|
||
|
|
00042 move.l 80028(sp),d1
|
||
|
|
|
||
|
|
Here are the pertinent parts of the code:
|
||
|
|
|
||
|
|
typedef struct{short y, xl, xr, dy;} segment
|
||
|
|
|
||
|
|
#define MAX 10000
|
||
|
|
|
||
|
|
#define PUSH(Y, XL, XR, DY) \
|
||
|
|
if(sp<stack+MAX && Y+(DY)>=0 && Y+(DY)<=maxx) \
|
||
|
|
{sp->y=Y; sp->xl=XL; sp->xr=XR; sp->dy=DY; sp++;}
|
||
|
|
|
||
|
|
#define POP(Y,XL,XR,DY) \
|
||
|
|
{sp--; Y=sp->y+(DY=sp->dy); XL=sp->xl; XR=sp->xr;}
|
||
|
|
|
||
|
|
fill(x,y,nv)
|
||
|
|
int x,y,nv;
|
||
|
|
{
|
||
|
|
segment stack[MAX], *sp=stack;
|
||
|
|
|
||
|
|
PUSH(y,x,x,1);
|
||
|
|
PUSH(y+1,x,x,-1);
|
||
|
|
.
|
||
|
|
.
|
||
|
|
.
|
||
|
|
POP(y,x1,x2,1);
|
||
|
|
etc.....
|
||
|
|
}
|
||
|
|
|
||
|
|
Looks to me like it defines an array of 10000 copies of struct segment, then
|
||
|
|
defines a pointer (sp) of type 'segment' to the structures to allow variables
|
||
|
|
to be stacked and unstacked 4 at a time.
|
||
|
|
|
||
|
|
Anybody know how to make this work on my MM/1. I'm not enough of a C guru to
|
||
|
|
solve it (so far).
|
||
|
|
|
||
|
|
Thanks in advance. Glen Hathaway - COMPER - 71446,166
|
||
|
|
|
||
|
|
#: 17481 S12/OS9/68000 (OSK)
|
||
|
|
06-Feb-93 07:25:54
|
||
|
|
Sb: #Cdecl docs
|
||
|
|
Fm: keith bauer 71102,317
|
||
|
|
To: Bob vanderpoel
|
||
|
|
|
||
|
|
Bob What program do I need to print out the docs from cdecl and where can I
|
||
|
|
find it. Thanks Keith
|
||
|
|
|
||
|
|
There is 1 Reply.
|
||
|
|
|
||
|
|
#: 17493 S12/OS9/68000 (OSK)
|
||
|
|
08-Feb-93 18:30:03
|
||
|
|
Sb: #17481-Cdecl docs
|
||
|
|
Fm: Bob van der Poel 76510,2203
|
||
|
|
To: keith bauer 71102,317 (X)
|
||
|
|
|
||
|
|
Keith, I think you need some variant of the TROFF/NROFF family. As I recall,
|
||
|
|
none of the ones I have work for this file (or a number of other unix doc
|
||
|
|
files). I keep promising myself to write a conversion program which will take
|
||
|
|
files like this and convert them to vprint format. Alas, time is such a limited
|
||
|
|
commodity.
|
||
|
|
|
||
|
|
#: 17465 S12/OS9/68000 (OSK)
|
||
|
|
02-Feb-93 14:45:50
|
||
|
|
Sb: What the hell is MM/1 ?
|
||
|
|
Fm: Gerd Fahrenhorst 100024,2113
|
||
|
|
To: All
|
||
|
|
|
||
|
|
As a new User I am listening to the discussions here,
|
||
|
|
but there is a problem to me ... I've never heard "MM/1" here in
|
||
|
|
Germany. Maybe it's some VME-Bus Card ?
|
||
|
|
|
||
|
|
Gerd
|
||
|
|
|
||
|
|
#: 17497 S12/OS9/68000 (OSK)
|
||
|
|
09-Feb-93 20:19:56
|
||
|
|
Sb: #New Forum Software
|
||
|
|
Fm: Bob van der Poel 76510,2203
|
||
|
|
To: Sysop (X)
|
||
|
|
|
||
|
|
Is there a lot of traffic which is hidden from folks like me. Or is it the new
|
||
|
|
forum software. I've been on for about three days running and keep finding a
|
||
|
|
bigger difference between the high message I've read and the high message
|
||
|
|
number. But I get a 'no thread' message when I type a simple 'read new'.
|
||
|
|
|
||
|
|
BTW, it is getting pretty lonely here. I just did a 'go microware' and even
|
||
|
|
they have left the ship. Mind you, they never did much there either.
|
||
|
|
|
||
|
|
There is 1 Reply.
|
||
|
|
|
||
|
|
#: 17502 S12/OS9/68000 (OSK)
|
||
|
|
10-Feb-93 07:27:54
|
||
|
|
Sb: #17497-#New Forum Software
|
||
|
|
Fm: Steve Wegert 76703,4255
|
||
|
|
To: Bob van der Poel 76510,2203 (X)
|
||
|
|
|
||
|
|
Bob,
|
||
|
|
|
||
|
|
Yeah ... I went looking for MW the other day to inquire about the group/user id
|
||
|
|
issue in Mail and was surprised to see that they had left the service. I
|
||
|
|
suppose I can understand given the cost to run a private forum but ...
|
||
|
|
|
||
|
|
Too bad they didn't just fold their operation into the OS9 Forum.
|
||
|
|
|
||
|
|
On the 'hidden' messages ... there's a couple of notes between BIll and myself
|
||
|
|
floating around in the sysop section ... but hardly worth mentioning. How far
|
||
|
|
off are your message counters?
|
||
|
|
|
||
|
|
*- Steve -*
|
||
|
|
|
||
|
|
|
||
|
|
There is 1 Reply.
|
||
|
|
|
||
|
|
#: 17507 S12/OS9/68000 (OSK)
|
||
|
|
10-Feb-93 20:52:00
|
||
|
|
Sb: #17502-#New Forum Software
|
||
|
|
Fm: Bob van der Poel 76510,2203
|
||
|
|
To: Steve Wegert 76703,4255 (X)
|
||
|
|
|
||
|
|
I don't recall the exact series of missing messages...but I think it was aound
|
||
|
|
10 to 15 message in the range 17490...
|
||
|
|
|
||
|
|
Actaully, MW not being around here anymore isn't a great loss since they never
|
||
|
|
really supported there own forum. However, it was still reassuring to see the
|
||
|
|
MW name here. Whenever I did venture over, there never did seem to be much new
|
||
|
|
there.
|
||
|
|
|
||
|
|
There is 1 Reply.
|
||
|
|
|
||
|
|
#: 17510 S12/OS9/68000 (OSK)
|
||
|
|
11-Feb-93 17:31:11
|
||
|
|
Sb: #17507-#New Forum Software
|
||
|
|
Fm: Steve Wegert 76703,4255
|
||
|
|
To: Bob van der Poel 76510,2203 (X)
|
||
|
|
|
||
|
|
Yes ... the area was always very dated ... again I have to say that the forum
|
||
|
|
might have been a better place to support the product, but that may not have
|
||
|
|
fit the plan for MW. No matter.
|
||
|
|
|
||
|
|
On another topic ... how goes your 'node' troubles? Any better these days?
|
||
|
|
|
||
|
|
|
||
|
|
*- Steve -*
|
||
|
|
|
||
|
|
|
||
|
|
There is 1 Reply.
|
||
|
|
|
||
|
|
#: 17515 S12/OS9/68000 (OSK)
|
||
|
|
11-Feb-93 23:53:24
|
||
|
|
Sb: #17510-New Forum Software
|
||
|
|
Fm: Bob van der Poel 76510,2203
|
||
|
|
To: Steve Wegert 76703,4255 (X)
|
||
|
|
|
||
|
|
Don't tell the CIS folks, but since I got a different brand of modem I have had
|
||
|
|
no problems at all with my 'node'. I suspect it was a modem problem all
|
||
|
|
along... <red faced>. My only complaint about this service now is the slow
|
||
|
|
responses I get when uploading mail. I still maintain that the CIS answer that
|
||
|
|
"we're busy" is BS.
|
||
|
|
|
||
|
|
#: 17498 S12/OS9/68000 (OSK)
|
||
|
|
09-Feb-93 20:20:17
|
||
|
|
Sb: #Xon/off
|
||
|
|
Fm: Bob van der Poel 76510,2203
|
||
|
|
To: All
|
||
|
|
|
||
|
|
Can anyone shed some light on xon/off for me when it comes to device
|
||
|
|
descriptors. I'm confused about just how these things work.
|
||
|
|
|
||
|
|
First off, a terminal program will send xon/off itself when its buffers are
|
||
|
|
full, etc. For example, sterm will send this when doing a disk save. CIS gets
|
||
|
|
the xoff and stops sending while the disk stuff is done, then after it gets a
|
||
|
|
xon it resumes. Makes perfect sense...nothing to do with the driver.
|
||
|
|
|
||
|
|
Now, I read in my modem manual that it will resond to xon/off senquences too.
|
||
|
|
This is kind of scary since it might be the result of binary data being sent
|
||
|
|
down the line. I have no idea what happens next, but I do think I'll make sure
|
||
|
|
the modem is not set up that way.
|
||
|
|
|
||
|
|
Now, I am using /t3 on a mm/1 with type=80. This is supposed to mean that
|
||
|
|
hardware handshaking is enabled. I have no idea how a hardware handshake works
|
||
|
|
over a phone line...probably doesn't. So, maybe the modem knows about it and
|
||
|
|
will stop sending stuff when told to stop. However, what happens with the guy
|
||
|
|
on the other end of the modem? Does it keep sending anyway?
|
||
|
|
|
||
|
|
So, I assume that xon/off are only used by a driver when its buffer is full and
|
||
|
|
hardware handshaking is not enabled. In which case the values in the desciptor
|
||
|
|
are meaningless if hardware handshake is available.
|
||
|
|
|
||
|
|
Have I got this right?
|
||
|
|
|
||
|
|
There are 4 Replies.
|
||
|
|
|
||
|
|
#: 17501 S12/OS9/68000 (OSK)
|
||
|
|
10-Feb-93 05:31:07
|
||
|
|
Sb: #17498-#Xon/off
|
||
|
|
Fm: SCOTT HOWELL 70270,641
|
||
|
|
To: Bob van der Poel 76510,2203 (X)
|
||
|
|
|
||
|
|
Bob, you are right with the xon/xoff thing when it comes to communicating over
|
||
|
|
the phone lines. I beleieve ahrdware handshaking is reserved for null modem
|
||
|
|
connections. BTW, have you received my disk mailer for the VED update yet? I
|
||
|
|
went ahead and formatted a diskette (80trk) DD. If you have any problems please
|
||
|
|
let me know,
|
||
|
|
|
||
|
|
There is 1 Reply.
|
||
|
|
|
||
|
|
#: 17506 S12/OS9/68000 (OSK)
|
||
|
|
10-Feb-93 20:51:49
|
||
|
|
Sb: #17501-Xon/off
|
||
|
|
Fm: Bob van der Poel 76510,2203
|
||
|
|
To: SCOTT HOWELL 70270,641 (X)
|
||
|
|
|
||
|
|
Scott,
|
||
|
|
|
||
|
|
I received your update order sometime last week. It was mailed out to you on
|
||
|
|
Monday (Feb 8). Should arrive just about anytime now. Do let me know what you
|
||
|
|
think of all the new goodies.
|
||
|
|
|
||
|
|
Thanks for the clearity on the xon/off stuff. The only thing I really don't
|
||
|
|
understand is how a modem can afford to look for xon/off itself. Sounds pretty
|
||
|
|
dangerous to me.
|
||
|
|
|
||
|
|
#: 17503 S12/OS9/68000 (OSK)
|
||
|
|
10-Feb-93 09:34:43
|
||
|
|
Sb: #17498-#Xon/off
|
||
|
|
Fm: Pete Lyall 76703,4230
|
||
|
|
To: Bob van der Poel 76510,2203 (X)
|
||
|
|
|
||
|
|
Scott -
|
||
|
|
|
||
|
|
Hardware handshaking occurs between the computer and the modem (or whatever
|
||
|
|
else it's hooked to - another computer, terminal, printer, etc.). It is usually
|
||
|
|
implemented using CTS/RTS (Clear/Request to send), but some implementations use
|
||
|
|
DTR (notably printers). In a computer -> modem -\-\-\- modem -> computer
|
||
|
|
scenario, there's no TRUE hardware handshaking endt to end. Some of the newer
|
||
|
|
modems can use a wrinkle in their dialog/protocols to effect end to end flow
|
||
|
|
control.
|
||
|
|
|
||
|
|
Pete
|
||
|
|
|
||
|
|
There is 1 Reply.
|
||
|
|
|
||
|
|
#: 17504 S12/OS9/68000 (OSK)
|
||
|
|
10-Feb-93 13:35:43
|
||
|
|
Sb: #17503-Xon/off
|
||
|
|
Fm: SCOTT HOWELL 70270,641
|
||
|
|
To: Pete Lyall 76703,4230 (X)
|
||
|
|
|
||
|
|
thanks, I did look back in my modem manual and find information on hardware
|
||
|
|
handshaking./exit
|
||
|
|
|
||
|
|
#: 17508 S12/OS9/68000 (OSK)
|
||
|
|
10-Feb-93 21:29:45
|
||
|
|
Sb: #17498-#Xon/off
|
||
|
|
Fm: Carl Kreider 71076,76
|
||
|
|
To: Bob van der Poel 76510,2203 (X)
|
||
|
|
|
||
|
|
>Now, I read in my modem manual that it will resond to xon/off senquences too.
|
||
|
|
>This is kind of scary since it
|
||
|
|
might be the result of binary data being sent
|
||
|
|
>down the line. I have no idea what happens next, but I do think I'll make sure
|
||
|
|
>the modem is not set up that way.
|
||
|
|
|
||
|
|
This sounds scary to me too. I would switch it off.
|
||
|
|
|
||
|
|
>Now, I am using /t3 on a mm/
|
||
|
|
1 with type=80. This is supposed to mean that
|
||
|
|
>hardware handshaking is enabled. I have no idea how a hardware handshake works
|
||
|
|
>over a phone line...probably doesn't. So, maybe the modem knows about it and
|
||
|
|
>will stop sending stuff when told to stop. However, what happens with the guy
|
||
|
|
>on the other end of the modem? Does it keep sending anyway?
|
||
|
|
|
||
|
|
Hardware handshake will only throttle the outbound data for the modem if the
|
||
|
|
phone line isn't as fast as the serial connection to the modem. Shouldn't
|
||
|
|
mean anything the other way - ie the MM/1 shouldn't want to shut down the
|
||
|
|
modem because the guy at the other end won't know it.
|
||
|
|
|
||
|
|
>So, I assume that xon/off are only used by a driver when its buffer is full
|
||
|
|
>and hardware handshaking is not enabled. In which case the values in the
|
||
|
|
>desciptor are meaningless if hardware handshake is available.
|
||
|
|
|
||
|
|
I don't remember if I disable xon/xoff if type is 80. Best zero them out.
|
||
|
|
|
||
|
|
There is 1 Reply.
|
||
|
|
|
||
|
|
#: 17514 S12/OS9/68000 (OSK)
|
||
|
|
11-Feb-93 23:53:15
|
||
|
|
Sb: #17508-Xon/off
|
||
|
|
Fm: Bob van der Poel 76510,2203
|
||
|
|
To: Carl Kreider 71076,76
|
||
|
|
|
||
|
|
Thanks Carl. Just thinking a bit more about all this...when the modem is using
|
||
|
|
a compression protocol it can get away ahead of the computer. Guess the
|
||
|
|
protocol will signal the sender to stop and smell the flowers while things
|
||
|
|
catch up.
|
||
|
|
|
||
|
|
#: 17511 S12/OS9/68000 (OSK)
|
||
|
|
11-Feb-93 20:19:23
|
||
|
|
Sb: #17498-Xon/off
|
||
|
|
Fm: Bill Dickhaus 70325,523
|
||
|
|
To: Bob van der Poel 76510,2203 (X)
|
||
|
|
|
||
|
|
Bob,
|
||
|
|
|
||
|
|
The xon/xoff values in the descriptor are normally used by the driver to
|
||
|
|
provide software flow control _from_ the computer to the external device. In
|
||
|
|
other words, whatever is connected to that serial port can use xon/xoff to
|
||
|
|
control output from that port. With a directly attached terminal, ^S and ^Q
|
||
|
|
could be used to pause output (if those were the actual xon/xoff values in the
|
||
|
|
descriptor, which they usually are). Someone dialed into your system through a
|
||
|
|
modem could also use xon/xoff, as could another computer. Sometimes even line
|
||
|
|
noise can cause an apparent port lockup, when in fact the driver simply honored
|
||
|
|
what it saw as an xoff.
|
||
|
|
|
||
|
|
You are correct in not wanting to use software flow control with the modem, for
|
||
|
|
exactly the reason you mentioned, there might be xon/xoff in the data.
|
||
|
|
|
||
|
|
Software flow control (xon/xoff) is normally used end to end, computer to
|
||
|
|
computer, terminal to computer, etc. Hardware flow control or hardware
|
||
|
|
handshaking, is usually local between two devices, such as a computer and a
|
||
|
|
modem.
|
||
|
|
|
||
|
|
With the newer modem protocols, the modems do flow control between each other
|
||
|
|
as part of the protocol, local flow control (between a modem and the local
|
||
|
|
device, such as a computer or terminal) is handled according to the local modem
|
||
|
|
setup, and xon/xoff flow control is a result of settings (like in the
|
||
|
|
descriptors) at either or both ends of the connection. All of these flow
|
||
|
|
control scenarios are independent of each other (though they may influence each
|
||
|
|
other).
|
||
|
|
|
||
|
|
Bill
|
||
|
|
|
||
|
|
#: 17499 S12/OS9/68000 (OSK)
|
||
|
|
09-Feb-93 22:02:45
|
||
|
|
Sb: #G-WINDOWS for ATARI ST
|
||
|
|
Fm: Michael Fisher 72320,1233
|
||
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To: ALL
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G-WINDOWS for the Atari ST?
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If you use an Atari 520 or 1040 ST running OS-9/68000 v2.3 or v2.4
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you may be interested to know there is a possibility of a port of
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G-WiNDOWS for it, (designed by Gespac and ported to several other
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OSK systems).
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To allow the port to be produced the company proposing it require
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a minimum of 10 people to order it, cost about $300 U.S. A deposit of
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50% at the time of the order would be required.If the interest as seen
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by replies to this note is sufficient, a more formal proposal
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would be made by the company concerned.
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Other than wanting G-Windows myself (so we only need 9 more orders!)
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,and initiating enquiries re the port I have no connection with the
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company doing the port.Such a windowing system for the ST would be a
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great improvement for yet another system running OSK, lets hear
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from you folks and see where this goes.
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Mike Fisher
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CIS 72320,1233
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INTERNET: os9mikef@gkcl.ists.ca
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There is 1 Reply.
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#: 17513 S12/OS9/68000 (OSK)
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11-Feb-93 22:56:10
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Sb: #17499-G-WINDOWS for ATARI ST
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Fm: Tom Birt 76640,1205
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To: Michael Fisher 72320,1233 (X)
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Michael,
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Steve Adams sent me the demo. version of G-Windows for the STs.
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It only works on the monochrome monitor (640 X 400). He said
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that the standard color monitor (640 X 200) is too coarse for
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G-Windows. I have seen G-Windows on a VGA monitor for OS-9000,
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and it looks great!
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I think there are two better options:
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1) Wait for Kevin Darling to finish his ST upgrade for K-Windows,
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and we make a deal with him.
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2) Wait for the Falcon030 to be debuted by Atari in March.
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Hope that we can convince Microware to develop an '030 OSK
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port for it. Then contract with Gespac for the Falcon version.
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The Falcon is a dynamic machine with a 640 X 400 color output
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(over 65,000 of 200,000 possible hues), built in IDE interface
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with 2.5" drive option, a Motorola DSP - capable of 16 channels
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handled without CPU assistance, all possible sound and video I/O
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ports, and it can be attached to a SCSI HD and is capable of
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reproducing better sound quality than a CD. See the Feb. BYTE
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for more info. Priced as low as $799.
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'|' () |'|
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#: 17518 S12/OS9/68000 (OSK)
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12-Feb-93 22:03:56
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Sb: #high speed modems
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Fm: SCOTT HOWELL 70270,641
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To: all
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I just tried to use my SYSTEM IV on a 14.4 Intel modem and it did not work. The
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modem lights indicating SD/RD were not lit, so no data was going through. I
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tried it on an AT and it worked so it may be something wrong with the serial
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cable??
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There is 1 Reply.
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#: 17522 S12/OS9/68000 (OSK)
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13-Feb-93 10:33:21
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Sb: #17518-#high speed modems
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Fm: Bud Hamblen 72466,256
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To: SCOTT HOWELL 70270,641 (X)
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>system IV w/14.4 Intel modem Maybe. Be sure the CTS pin on your serial port
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is high and you have DTR high at the modem, and you have data transmit from
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your port sending to data receive on your modem and vice versa. Does the port
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and cable work with another modem?
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There is 1 Reply.
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#: 17523 S12/OS9/68000 (OSK)
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13-Feb-93 16:27:24
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Sb: #17522-high speed modems
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Fm: SCOTT HOWELL 70270,641
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To: Bud Hamblen 72466,256
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Yes, this same cable and port (/t1) does work on my 2400 baud modem flawlessly.
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I will check to see if the CTS is high. thanks
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#: 17468 S14/misc/info/Soapbox
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02-Feb-93 16:38:47
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Sb: #17457-#OS9 Info
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Fm: Nick Terry 100042,3116
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To: ole hansen 100016,3417 (X)
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Hi ole
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Thanks for the reply. I have heard of your company around the office. I
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am currently working for Pro-Active control in Cambridge. We plan to get
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Microware to write drivers for an Ethernet card (for ISP) and an NFM driver for
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interrack comms using paralell ports - hence the question.
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Is there much of an OS9 presence in the UK? It seems to be an OS that
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you have to support yourself to a large extent.
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Once again thanks for the response.
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Nick
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There is 1 Reply.
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#: 17471 S14/misc/info/Soapbox
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03-Feb-93 18:47:03
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Sb: #17468-#OS9 Info
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Fm: ole hansen 100016,3417
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To: Nick Terry 100042,3116 (X)
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Hello Nick
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Now a Bell is ringing. We talked on the telephone about the VGA-board and
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Celeste 68020.
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About supporting OS-9 only by yourself is not true. There is a couple of
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companies that can help you out beside Microware. Do you know Paul Dayan at
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Galactic Industrial ?? He is brilliant when is comes to OS-9/68K and
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devicedrivers for ISP and NFM. He wrote the NFMISP-driver we have for NFM, so
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it can run on top of ISP. He telephone-number is :
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+44 913848343 and fax: +44 913847742
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regards ole@danelec.dk
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There is 1 Reply.
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#: 17477 S14/misc/info/Soapbox
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04-Feb-93 16:14:32
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Sb: #17471-OS9 Info
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Fm: Nick Terry 100042,3116
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To: ole hansen 100016,3417 (X)
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Hello Ole
|
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Thanks for the hint, I'll give him a call. I hope we can help you with
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your card requirements.
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Cheers,
|
||
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Nick
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Press <CR> !>
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