On 13/05/16 06:52, George Spelvin wrote:
Thank you very much!
Greg Ungerer wrote:
This syntax fails for me (using a binutils-2.25.1 based toolchain).
Registers must be prefixed with a "%", so here %sp and %a0.
arch/m68k/lib/mulsi3.S: Assembler messages:
arch/m68k/lib/mulsi3.S:12: Error: syntax error -- statement `lea 4(sp),a0' ignored
That was compiling with just this one patch for a ColdFire target.
Well, *that* is an embarrassing oversight. If you fix that obvious typo
(I used ":%s/[ad][01]/%&/g"), do you have a way of testing it?
Setting up a suitable Qemu environment is many times the effort needed
to write the code, so I was hoping someone with the facilities already
in place would be willing to test.
I've stared at the code and am convinced it's right, but I remember
Knuth's words: "Beware of bugs in the above code; I have only proved it
correct, not tried it."
I have many test setups for ColdFire (qemu and real hardware) but
none of them actually use the mulsi3 code. I don't have anything
for testing classic m68000 builds.
So other than compiling it I don't have an easy way to currently
test it.
Regards
Greg
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