This has probably already been identified, but %r15 etc should be %r15d. You can't zero- extend directly to a 64-bit register because zero-extending to 32-bit is guaranteed to zero the upper 32 bits.
Gareth aka. Kit On Sat 25/04/20 18:00 , "Jonas Maebe" jo...@freepascal.org sent: > On 25/04/2020 16:46, Michael Ring via fpc- devel wrote: > > > > > > /Users/ring/devel/fpc/rtl/units/x86_64- darwin/system.s:3469:15: error: > > invalid operand for instruction > > > > movzbl %r12b,%rdx > > > &nb > sp; ^~~~ > > > Probably caused by r45057. It would be nice if the internal assembler > > were more rigorous in its checks, so it would catch these errors too. > > > > > > Jonas > > _____________________________________________ __ > > fpc-devel maillist - fpc- de...@lists.freepascal.org > https://lists.freepascal.org/cgi- bin/mailman/listinfo/fpc-devel > > > > > _______________________________________________ fpc-devel maillist - fpc-devel@lists.freepascal.org https://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-devel
