Let's see, similar to how I do SM500/SM5A now: x.y.z, starting index=0 x = O group y = O segment z = H common
eg. O10 H2 = 0.0.1 O2A H1 = 1.10.0
I'll write SM530 emulation soon.
I don't know what chip HMC HA1152 could be. For Holtek, I'd expect HLxxxx or HTxxxx. HMC may be Hansa Manufacturing Corporation? Google says they make melody ICs.
As for bikermicefrommarssegs.svg: Could you upload the source picture? With a 1bit monochrome result(aka the SVG) I can't see what is a scratch/dust or what is a notch on the actual LCD segment.