Florian Klaempfl schrieb: > Jeppe Johansen schrieb: >>> Yes, but the code is not selected dynamically: if one compiles for armv5 >>> but runs it on a armv6+, the armv6 doesn't use the new instructions. >> True, but do you think anyone does that? :) Most people know what end >> hardware their programs will run on >> >> I don't think we can have support for both in the rtl. I don't even >> think you can do that, since GNU as won't accept ARMv6 instructions if >> you assemble for ARMv5, and throw an error > > Well, you can always assemble for ARMv6 but use only ARMv5 instructions > when running on ARMv5. This is what the rtl does with the PLD > instruction in system.move: a system.move procedure with PLD is only > used when the CPU supports it.
Of course, this aims more towards generic arm-linux programs than embedded stuff where you usually build your custom rtl anyways. _______________________________________________ fpc-devel maillist - fpc-devel@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-devel
