[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [ft-devel] Experimental: v38 interpreter with minimal backwards comp
Re: [ft-devel] Experimental: v38 interpreter with minimal backwards compatibility mode and linear advance widths
Fri, 11 Mar 2016 20:23:15 +0100
Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.6.0
Mhmm. This is too hars harsh. I would rather simply stop
interpretation of delta instructions but let everything else work.
For example, IUP[xy] could be called within conditionals, and it would
be bad if the following `EIF' doesn't get interpreted, causing
unwarranted execution failures.
Or, how about doing
if ( exc->backwards_compatibility && exc->iupx_called &&
at the top of the instruction execution loop? Just pretend everything is
I mean, is there any point in continuing if DELTAP/SHPIXes are denied
anyway? That would also save a few backwards-compatibility-ifs and
probably yield a tiny performance boost on core web fonts, a nice
selling point for a Phoronix article ;)
Or is there anything else that can cause execution failures? Any
clean-up that would need to be done?