This was routinely done for 2 decades or so. Small (e.g. 32x8, 256x8) fast bipolar proms were extremely common for things like address decoders in the 70s and

This was routinely done for 2 decades or so. Small (e.g. 32x8, 256x8) fast bipolar proms were extremely common for things like address decoders in the 70s and 80s. I've used fast Cypress cmos proms (cy7c244) more recently. Cypress also made registered proms which probably make some applications easier. Using lisp to specify it is clever, tho...we usually had to make due with pen and paper.