Searching \ for 'New Pic Wishlist 2' in subject line. ()
Make payments with PayPal - it's fast, free and secure! Help us get a faster server
FAQ page: www.piclist.com/techref/microchip/devices.htm?key=pic
Search entire site for: 'New Pic Wishlist 2'.

Truncated match.
PICList Thread
'New Pic Wishlist 2'
1995\07\24@093918 by eder Ferlemann

flavicon
face
Hi at the piclist,

I don't know if somebody has already requested the instruction (or
Microchip has even announced it):

To my opinion the interrupt response time is prolonged unneccessarily
by saving the flags and working file (the trick with SWAP .. there
is an application note about it...)

I would like to have a single instruction to push and pop both
registers in a device like the 16C84 or 16C71.

(Or even better (though maybe not easy to implement):
The optimum would be kind of REFFIEWF which restores the registers
in a single instruction and returning from interrupt.
If Flags and W File were already saved
when the PIC starts executing at 004 (the interrupt adress)
one could cut response time even further)

Bye

Frieder







----
; Frieder Ferlemann
; Institut fuer Umweltphysik
; Im Neuenheimer Feld 366, Zi 410
; D-69120 Heidelberg
; Tel.: 06221 563385 oder 563334
; Fax:  06221 563405
; Email: spam_OUTFETakeThisOuTspamuphys1.uphys.uni-heidelberg.de
;
; To be scanned by BundesNachrichtenDienst: Embargo, G3, Police

1995\07\24@235008 by Andrew Warren

face
flavicon
face
Frieder Ferlemann <.....FEKILLspamspam@spam@UPHYS1.UPHYS.UNI-HEIDELBERG.DE> wrote:

>To my opinion the interrupt response time is prolonged unneccessarily
>by saving the flags and working file (the trick with SWAP .. there
>is an application note about it...)
>
>I would like to have a single instruction to push and pop both
>registers in a device like the 16C84 or 16C71.
>
>(Or even better (though maybe not easy to implement):
> The optimum would be kind of REFFIEWF which restores the registers
> in a single instruction and returning from interrupt.

Frieder:

Or you could do what I do, Frieder... My current 16C71 project has a
115-instruction Interrupt Service Routine that affects neither the W
nor the Status registers.

-Andy

--
Andrew Warren - fastfwdspamKILLspamix.netcom.com
Fast Forward Engineering, Vista, California

More... (looser matching)
- Last day of these posts
- In 1995 , 1996 only
- Today
- New search...