Quote:
Originally Posted by serge2k
well I'm trying to run the PONG program. It runs, displays the paddles and the score but the "ball" jumps around. Scores aren't registering quite right either.
just tried breakout and it isn't working quite right either.
I did just realize what was causing it to be so slow. Redrawing the screen on every single opcode instead of just when it changes. it's faster now.
I think the problem is with my drawing code.l
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As runawayprisoner have said... I've just plus one thing.
I believe that PONG uses the FONT scheme instead of BCD so checks your insctructions to font...
FX29 I points to the 4 x 5 font sprite of hex char in VX
Fx29 - LD F, Vx
Set I = location of sprite for digit Vx.
The value of I is set to the location for the hexadecimal sprite corresponding to the value of Vx. See section 2.4, Display, for more information on the Chip-8 hexadecimal font.
Source
See if you are correct with this too.