On Thu, 2013-12-05 at 23:38 +0100, Laszlo Ersek wrote: > > Does gas support mode switches in one file? I found examples on the > net (for nasm I think) where people were thunking to real mode and > back to protected mode in a single assembly file, and they could use > native mnemonics for each part. (They just switched the assembler's > mode in sync with execution modes.)
$DEITY yes. See the patch I posted to fix Thunk16.S last week, which does exactly that. Without that, it's basically unmaintainable. As Andrew points out, LLVM doesn't support .code16. There's a bug filed. But frankly, I don't think we should care. Let them fix it. There *is* active development on LLVM and it *can* be fixed, relatively easily. It's not like we're talking about requiring fixes to the effectively unmaintained Microsoft toolchain — which we can't even describe as "stuck in the 20th century" since it doesn't even support the last C standard from *that* century either :) -- dwmw2
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