Does ADLO support cdrom boot?. I tested it by setting cmos 0x3d as 0x003 and connecting cd-rom as primary slave device. But it failed to detect cd-rom.
There's some CD-ROM booting code in BOCHS BIOS (as you have noticed), but at the present status it is untested.
My guesstimate is that it should work but you will have to fix timing problems. For example I would guess that it does not detect CD because it is slower in responding than a typical hdd would be.
Hope it helps, Adam