From: "Frank Ch. Eigler" <fche@redhat.com>
To: Stefano Gallina <warx_sg@yahoo.com>
Cc: sid@sources.redhat.com
Subject: Re: Does SID initialize all its components ?
Date: Tue, 18 Mar 2003 11:54:00 -0000 [thread overview]
Message-ID: <20030318115422.GA14852@redhat.com> (raw)
In-Reply-To: <20030318083212.12496.qmail@web41106.mail.yahoo.com>
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Hi -
> I wrote some assembly programs to comunicate with the
> UART1 and UART2 serial ports of SID.
> I was surprised that i didn't need to initialize
> serial port before send the data to it.
What kind of initialization did you expect? I believe
most SID components aim to start up in a state similar
to powerup of the physical devices. However, since some
features of the hardware may not be emulated, and others
may be hidden by properties of the host I/O, you may get
away with using initial state on the simulator.
This is true in general with simulators: it is possible
to get a "false positive" in the sense that a program
may run on the sim but not on hardware.
> Is it right that SID doesn't need any initialization
> of its components before using them?
Not really. What you're seeing is probably a coincidence.
- FChE
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next prev parent reply other threads:[~2003-03-18 11:54 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-01-27 17:54 Building SID under Linux - HELP - ! Stefano Gallina
2003-01-27 18:22 ` Frank Ch. Eigler
2003-01-28 10:52 ` Ben Elliston
2003-03-18 8:32 ` Does SID initialize all its components ? Stefano Gallina
2003-03-18 11:54 ` Frank Ch. Eigler [this message]
2003-01-29 18:42 ` Another problem building SID under Linux ! HELP ! Stefano Gallina
2003-01-29 22:25 ` Gary Thomas
2003-01-29 22:30 ` Frank Ch. Eigler
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