Cromemco Dazzler Page flipping

[jok2000]

My 1980 Z80 Dazzler games utilized Dazzler page flipping to produce a 4-color mode as well as a very flickery 8-color mode. This is incompatible with the Dazzler emulation as it stands, so I create the 4 and 8 color modes inside the Dazzler emulator itself and patched the Assembler to use the page-flip emulation instead of 60Hz interrupts. This is a bit non-standard but should be done for any programs that did this. I believe I got the idea from some magazine or Cromemco document in 1978, so there may be other programs doing this. I put it in a #define and it is ready for merging.
n.b. I am still debugging to find the remaining typos in my 1980 Dazzler games over at Cromeco-Z80-games when I have time.