[maemo-developers] [maemo-developers] RE: GCC port for the TI TMS320C5{4,5}x

[From: Ishigami]

Hello,

 1) The C55x core can switch to C54 compatible mode at run time,
by setting the bit 5 of ST1 register.

 2)  Although this isn't gcc port, a C55x compiler is available at
 
https://www-a.ti.com/downloads/sds_support/targetcontent/LinuxDspTools/index
.html

 And I believe the latest DSP Gateway is built by this toolchain.

 Regards,
 Ishigami

-----Original Message-----
From: Aleksandr Koltsoff
Sent: Wednesday, June 15, 2005 12:32 AM
To: maemo-developers at maemo.org
Subject: Re: [maemo-developers] GCC port for the TI TMS320C5{4,5}x


On Monday 13 June 2005 20:29, Jonathan Bastien-Filiatrault wrote:
> Hello,
>     We are currently looking for experienced GCC hackers to help 
> implement and complete a GCC port for the Texas Instruments 
> TMS320C54x. This chip is used in the Neuros music player, as well as 
> in the Nokia 770 internet tablet. <clip>

Try the gcc-dev lists as well. However, I'd like to point out that the DSP 
core in 770 is 55x, not 54x. 55x supports 54x code in emulation mode but I 
don't know the innards of dspgateway nor 770 to be able to say whether 
switching the emulation mode on and off between DSP code is 
possible/feasible. Also, I don't know whether the 55x runs in 54x emulation 
mode by default (and only in emu). I'm sure someone can clarify this (if 
possible).

personally I'd like to see free development tools for the 55x core as it's 
used in 770, but have no time at the moment to participate in gcc-hacking.

ak.