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Hi, >I've built and used cross-compilers in the past for the m68k. I'd now like >to build a cross-compiler for the Motorola Coldfire mcf520x/mcf530x. Looking >at the gcc-2.8.0 sources it's not clear to me how to configure the compiler >for Coldfire. Can anyone help? > >I notice there's a `-m5200' run-time flag. Can I build a m68k cross-compiler >and just supply this flag at compile time? Essentially you just create a standard m68k-coff or similar cross-compiler and run with -m5200 rather than (say) -m68020 or -m68000 as the processor option. The build should create the appropriate libraries for you (m5200 directory in m68k-coff/lib). If you want a Win32 cross-compiler then feel to pick up my pre-built binaries from http://www.calm.hw.ac.uk/davidf/coldfire.htm You might also be interested in the ColdFire mailing list (http://www.wildrice.com/coldfire/). There are a couple of bugs in the Coldfire support in gcc (details in the mailing list archives) but they have been reported to the appropriate people so fixes should be forthcoming :) The MCF53xx series of processors is not (yet) explicitly supported by gcc/binutils but using MCF5200 code should be OK for 99% of applications....if a little slow if you want to use hardware divide and the MAC unit. Dave David Fiddes, CALM Software Production Officer Department of Mathematics, Heriot-Watt University, Edinburgh email D.J.Fiddes@hw.ac.uk - Tel: +44 131-451-3251