https://bugs.winehq.org/show_bug.cgi?id=43245
--- Comment #17 from Nikolay Sivov bunglehead@gmail.com --- Created attachment 76151 --> https://bugs.winehq.org/attachment.cgi?id=76151 shader
Attaching a test shader for this issue. For vs_2_0 it should be using 'a0' register for indexed access.