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[arm-gnu] RBIT instruction issue
- To: <arm-gnu@xxxxxxxxxxxxxxxx>
- Subject: [arm-gnu] RBIT instruction issue
- From: Seifeddine JLASSI <seifeddine.jlassi@xxxxxx>
- Date: Tue, 9 Sep 2008 14:56:34 +0200
Hello to all,
I am working on a project on the STM32 microcontroller, which is a Cortex-M3 MCU, using GNU compiler.
When I am trying to use the RBIT instruction: RBIT Rd, Rn the compiler will replace the Rn register by default by R0.
The problem is that I cannot use the R0 in that instruction. In other hand, why the compiler changes the register? Normally an assembly code has not to be modified. I am using the last version of code sourcery: 2008 q1. There is a patch for this issue?
Thanks to all.
Regards
Seif
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