ULA

Change of Electron.txt

47:f3f4e632c631
Electron.txt
     1.1 --- a/Electron.txt	Sun Mar 04 01:22:28 2012 +0100
     1.2 +++ b/Electron.txt	Thu May 03 01:28:46 2012 +0200
     1.3 @@ -58,3 +58,12 @@
     1.4  access four memory chips at once to provide each byte, and it is therefore not
     1.5  possible to just "borrow" one of the chips in order to isolate 8K of RAM for
     1.6  direct access by the CPU.
     1.7 +
     1.8 +Improving Display Capabilities
     1.9 +------------------------------
    1.10 +
    1.11 +Perhaps the simplest improvement to the display capabilities would be to
    1.12 +permit the RGB output levels to "float" between the current TTL high and low
    1.13 +states, presumably enforced by various circuits. This would permit the choice
    1.14 +of colours beyond the primary and secondary colour selection at a cost of some
    1.15 +extra palette bits in the ULA and an adjustment to the board circuitry.