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Date: Thu, 3 Aug 2006 18:29:41 +0200
From: "Alessandro Corradi" <ale.corradi@gmail.com>
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Subject: [Qemu-devel] Who call I/O cpu_in*/cpu_out*?
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Hello,
This is what I understand:
In vl.c code:
-In qemu initialization will be create and initialize a table in which there
are I/O read/write function corresponding to I/O address.
-When emulated devices are inizialited they register IO function in this
table, in this way it can be called when an instruction want to access at
this address-device right?
-These function are called by cpu_write{b|w|l} in case of byte/word/long.

I suppose when there is an instruction op-code regards IO there is a
mechanism that calls these function. Can you say me where it does this?

Thank you

Ale

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Hello,<br>This is what I understand:<br>In vl.c code:<br>-In qemu initialization will be create and initialize a table in which there are I/O read/write function corresponding to I/O address.<br>-When emulated devices are inizialited they register IO function in this table, in this way it can be called when an instruction want to access at this address-device right?
<br>-These function are called by cpu_write{b|w|l} in case of byte/word/long.<br><br>I suppose when there is an instruction op-code regards IO there is a mechanism that calls these function. Can you say me where it does this?
<br><br>Thank you<br><br>Ale<br>

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