From: Tolunay Orkun <listmember@orkun.us>
To: u-boot@lists.denx.de
Subject: [U-Boot-Users] How do you test a bit set/clear from U-Boot command line/script?
Date: Wed, 26 Apr 2006 18:25:13 -0500 [thread overview]
Message-ID: <44500159.8020506@orkun.us> (raw)
In-Reply-To: <20060426222044.CA140353DAD@atlas.denx.de>
Wolfgang Denk wrote:
> In message <444FDD08.2010101@orkun.us> you wrote:
>
>> I know I can compare a simple value using itest command. e.g.
>>
>> itest *4000 -eq 1234 && echo 'Addr 4000 contains 1234'
>>
>> Now my problem is how can I test a bit of 32 bit quantity (say bit 4)
>> stored at location 4000? This is a question about general hush/u-boot
>> shell capability? It is a generic question...
>>
>
> At the moment there is no command that implements this. As you
> probaly are aware, the "itest" command just implements the following
> operations:
>
I did hope there was some clever way to do this using existing commands.
> Feel free to add new commands for AND, OR, and XOR...
>
I will send a patch. I am not sure how OR or XOR could be useful
though... We do not support multiple operations or store computed
expression results anywhere.
Tolunay
next parent reply other threads:[~2006-04-26 23:25 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20060426222044.CA140353DAD@atlas.denx.de>
2006-04-26 23:25 ` Tolunay Orkun [this message]
[not found] <20060426200809.6BE30353DAE@atlas.denx.de>
2006-04-26 20:50 ` [U-Boot-Users] How do you test a bit set/clear from U-Boot command line/script? Tolunay Orkun
2006-04-26 22:20 ` Wolfgang Denk
2006-04-26 19:56 Tolunay Orkun
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