Re: [cc65] Question on 1351 mouse

From: <>
Date: 2010-02-18 13:41:54
On 2010-02-18, at 13:32, Oliver Schmidt wrote:

> Hi Greg,
> Still trying to catch a glimpse of what you're doing in the driver...
>> The driver prevents the mouse/joystick from interfering by "blinding"
>> the keyboard scanner while any button/switch is active.  [...] Therefore,
>> the scanner thinks that eight keys are being pushed at the same time.
>> It doesn't know what to do about that condition; so, it does nothing.
>> The driver lets the scanner see normally, again, when no buttons/
>> switches are active.
> Does that mean that a program is obligated to call into the mouse driver
> frequently "enough" in order to successfully receive keystrokes?

As I wrote about at the same time as you did - I guess the typical approach would be chaining it into IRQ call chain. This should be "frequently enough" I believe, but let's see if Greg confirms that my guesses are correct ;-)


To unsubscribe from the list send mail to with
the string "unsubscribe cc65" in the body(!) of the mail.
Received on Thu Feb 18 13:42:02 2010

This archive was generated by hypermail 2.1.8 : 2010-02-18 13:42:05 CET