Re: Console output corruption

----- Original Message ----- 
From: "Phil Goembel" <[email protected]>
To: "Dieter Kedrowitsch" <[email protected]>
Cc: <[email protected]>
Sent: Sunday, April 18, 2010 3:50 PM
Subject: Re: Console output corruption
 
> In elks/kernel/printk.c is the following code for parsing a format
> string (line 139, right after detecting a '%'):
> 
>    width = zero = '0';
>    if (c == '0')
>        zero++;
>    while (c >= '0' && c <= '9') {
>        width *= 10;
>        width += c - '0';
>        c = *fmt++;
>    }
> 
> Notice the width is being set to the value of an ASCII '0' character. I
> think it should have been set to the integer value 0 (zero) instead.
> 
> It looks like, by default, all fields will have a width of whatever the
> ASCII code for '0' (48?).
> 
> Phil
 
Phil you are the man!
 
I have just done a quick test and it seems to be fixed:
 
Booting......
 
ELKS Boot........:
Console: BIOS(15x25)
PC/XT class machine, 80188 CPU
640K base RAM.
ELKS kernel (-14544 text + 7044 data + -16516 bss)
Kernel text at 1002:0000, data at 1c75:0000
471 K of memory for user processes.
Serial driver version 0.02
ttyS0 at 0x3f8 (irq = 4) is a 16450
ttyS1 at 0x2f8 (irq = 3) is a 16450
rd driver Copyright (C) 1997 Alistair Riddoch
hd Driver Copyright (C) 1994 Yggdrasil Computing, Inc.
Extended and modified for Linux 8086 by Alan Cox.
doshd: found 0 floppy drives
ELKS version 0.1.3-pre1
Release not defined
VFS: Insert root floppy and press ENTER

Many thanks,

Hans
www.ht-lab.com


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