Apple II

Apple II Prints Off The Breaking News

January 19, 2021 Hackaday

These days, we’re alerted to the rise of Bitcoin and the fall of nations via little buzzes from the smartphones in our pocket. Go back fifty years or so and it was all a bit more romantic, with noisy teletype machines delivering hot tips straight to the newsroom for broadcast …

Apple II

When 64 Kbits Is Not 8 Kbytes

January 18, 2021 Big Mess o' Wires

This FPGA-based disk controller project is going to need every byte of on-chip memory that I can scrounge up. The datasheet says my Lattice MachXO2-1200 has 64 Kbits of embedded RAM (EBR). See the shaded column in the table above. 64 Kbits is 8 Kbytes, and I plan to …