mirrorbird (00:08:03)
branch if not equal. yeah in z80 it's JNZ or something (jump if nonzero)

Agemixer (00:07:29)
and BNE *+2 goes to the following code in any case

mirrorbird (00:07:13)
"I'm not calling anything at all at the moment though, everything is unrolled up the wazoo, which is why I need to save some memory" -- ok this i understand. probably got a separate draw routine for every single 'sprite'.

Agemixer (00:06:46)
BNE * command does forever loop until CPU recognizes zero. (zero flag).. and that can gappen only in an interrupt routine in that case

mirrorbird (00:05:21)
quicker than assembling 1 instruction

mirrorbird (00:05:07)
im still curious about this JP 0 and could it actually loop. i'll ask my dude

mirrorbird (00:04:21)
oh yeah it must be +128/-127 actually. must be a byte. i bet i remembered it wrong

Agemixer (00:03:55)
Yes, JMP $xxxx can access to 64 kilobytes anywhere, branch (relative) commands B** can branch from -128 to +127 bytes "from here"

mirrorbird (00:03:48)
fact of the day: Neal Stephenson's "Snow Crash" was about his spectrum resetting into the wrong mode and having ULA snow on screen.

mirrorbird (00:02:32)
i guess that's all there *is* to know. until you are a cycle-counting nerd like my Galaxians friend

Dark Promise

Hunz (Johannes Van Vliet)

Colidace

Time Left: 4:00