is VBL task in pascal possible?

Article View: comp.sys.mac

Article #15919

#15919

From: Peter Wu
Date: Tue, 05 May 1987 19:49

11 lines
929 bytes

According to inside mac a VBL routine need to preserve some registers.
Is there a way I can do this in pascal? I'm using lightspeed pascal.
The VBL routine is used to sample data from the serial port at 500ms
interval.

peter
---------------------------------------------------------------
ARPA:   pwu@trochos.wisc.edu (128.105.2.200)
BITNET: WU at WISVMACC
UUCP:   {seismo|harvard|topaz|caip|ll-xn|
         allegra|akgua|ucbvax|bellcore|ihnp4}!uwvax!trochos!pwu

Technical Details

Message-ID: <1477@uwmacc.UUCP>

Path: arc1-ca.pugleaf.net!utzoo!mnetor!seismo!uwvax!uwmacc!pwu

Show Full Headers

Complete Article Headers

Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: arc1-ca.pugleaf.net!utzoo!mnetor!seismo!uwvax!uwmacc!pwu
From: pwu@uwmacc.UUCP (Peter Wu)
Newsgroups: comp.sys.mac
Subject: is VBL task in pascal possible?
Message-ID: <1477@uwmacc.UUCP>
Date: Tue, 5-May-87 15:49:14 EDT
Article-I.D.: uwmacc.1477
Posted: Tue May  5 15:49:14 1987
Date-Received: Thu, 7-May-87 05:03:14 EDT
Organization: UWisconsin-Madison Academic Comp Center
Lines: 11
Keywords: vbl