Added Drive turbo selection. Fixed a few builds. Added which target is building to output. Run up to 3 jobs at once during build.
Split the concept of hsync, vsync and composite sync. When composite sync used tie vsync high. The offset hsync pulse of pal/hsync is only present for 15khz composite sync. Remove rom selection since its unused.
Allow 64k carts to work. Switch keyboard to PS2 port 2.
Changed mem addresses
Switched DAC
Added multiple build types
Added 32 bit sram access to make zpu work
sram works, boots, keyboard works
Fixed PLL to more appropriate for PAL/NTSC with he 32MHz input clock. Should work now, although no ZPU yet!
replacing with pal/ntsc plls of correct input frequency
First cut of papilio duo support. NB: This does not work yet, notably PLL needs changing. Then sram needs wiring up to allow zpu to run.