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* [U-Boot] lcd_putc bug?
@ 2009-02-03 18:44 Derek Ou
  2009-02-03 19:23 ` Wolfgang Denk
  0 siblings, 1 reply; 2+ messages in thread
From: Derek Ou @ 2009-02-03 18:44 UTC (permalink / raw)
  To: u-boot

In the lcd_putc() of common/lcd.c, line 189 handles tab '\t'.  And the 
following lines:
            console_col |=  8;
            console_col &= ~7;
seems to have problems.  If console_col is 9, it will become 8 after the 
above two lines, which means instead of tab of 8 spaces, it goes back 
1.  Is this intentional or a bug?

I think it should be console_col +=  8; instead of console_col |=  8;

Derek

^ permalink raw reply	[flat|nested] 2+ messages in thread

* [U-Boot] lcd_putc bug?
  2009-02-03 18:44 [U-Boot] lcd_putc bug? Derek Ou
@ 2009-02-03 19:23 ` Wolfgang Denk
  0 siblings, 0 replies; 2+ messages in thread
From: Wolfgang Denk @ 2009-02-03 19:23 UTC (permalink / raw)
  To: u-boot

Dear Derek Ou,

In message <49889076.5010509@siconix.com> you wrote:
> In the lcd_putc() of common/lcd.c, line 189 handles tab '\t'.  And the 
> following lines:
>             console_col |=  8;
>             console_col &= ~7;
> seems to have problems.  If console_col is 9, it will become 8 after the 
> above two lines, which means instead of tab of 8 spaces, it goes back 
> 1.  Is this intentional or a bug?
> 
> I think it should be console_col +=  8; instead of console_col |=  8;

I think you are right - can you please submit a patch?

Best regards,

Wolfgang Denk

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greatest odds boil down to a double-sided statement: it will  happen,
or it will not.         - Terry Pratchett, _The Dark Side of the Sun_

^ permalink raw reply	[flat|nested] 2+ messages in thread

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2009-02-03 18:44 [U-Boot] lcd_putc bug? Derek Ou
2009-02-03 19:23 ` Wolfgang Denk

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