Lpc2000

----- Original Message -----

From: lpc2100

To: lpc2000@yahoogroups.com

Sent: Thursday, April 29, 2004 9:18 AM

Subject: [lpc2000] Re: NOP Question

You can use the following in your C function. This should work for
ADS 1.2 C compiler. Please post if it works or not.

Does gcc support __asm ?

__asm
{
NOP
}

OR

__asm
{
MOV r0, r0
}


ADS 1.2 assembler supports the NOP pseudo instruction.

Relevant text from the assembler guide
http://www.arm.com/pdfs/DUI0068B_ADS1_2_Assembler.pdf

NOP ARM pseudo-instruction
NOP generates the preferred ARM no-operation code.

The following instruction might be used, but this is not guaranteed:
MOV r0, r0
Syntax
NOP

Usage
NOP cannot be used conditionally. Not executing a no-operation is the
same as executing
it, so conditional execution is not required.
ALU status flags are unaltered by NOP.

--- In lpc2000@yahoogroups.com, "Beeno Rabbit"
wrote:
> I am using ADS2.1 compiler (Code Warrior). I don't know how to
code "NOP" in the C code.
> Any example for this?
>
> Beeno
>
>
>
> ----- Original Message -----
> From: Robert Adsett
> To: lpc2000@yahoogroups.com
> Sent: Wednesday, April 28, 2004 1:52 AM
> Subject: Re: [lpc2000] NOP Question
>
>
> At 01:28 AM 4/28/04 +0800, you wrote:
> >I am a new user of lpc2000 series. I don't know
> >how to write "NOP" in the C code. I have tried
> >_asm("NOP") and #asm("nop") but failed.
> Two questions:
> Which compiler?
> What do you mean by failed?
>
> Robert
>
> " 'Freedom' has no meaning of itself. There are always
restrictions,
> be they legal, genetic, or physical. If you don't believe me,
try to
> chew a radio signal. "
>
> Kelvin Throop, III
>
>
>
> --------------------------------------------------------------------
----------
> Yahoo! Groups Links
>
> a.. To visit your group on the web, go to:
> http://groups.yahoo.com/group/lpc2000/
>
> b.. To unsubscribe from this group, send an email to:
> lpc2000-unsubscribe@yahoogroups.com
>
> c.. Your use of Yahoo! Groups is subject to the Yahoo! Terms of
Service.