Hi, who want to make the most speedy set pixel routine for screen2?
Rules:
1) No attribute support: the attr table is uniformly filled with a &hf1 for the entire table.
2) Because of (1) the routine should not access the attribute table.
3) the routine should expect the coordinates x,y in the register pair l,h and the vram pattern table is expected to start at 0
4) you can destroy all registers, except IX,IY, if you need it, save it!
5) no self modifying code.
Who from all the z80 experts like to join?
Login sesión o register para postear comentarios


maybe one day will be useful for me or another people. Those from BIOS are slow...