[comp.sys.mac] is VBL task in pascal possible?

pwu@uwmacc.UUCP (Peter Wu) (05/05/87)

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
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