What`s the difference between a JP and a JR, I don`t even mean
in T-States, but what varies between the way they work. If you`s
don`t mind me asking ?
Cal...
`Geoff Winkless [EMAIL PROTECTED] wrote:`Geoff Winkless wrote:
Anyway, something like:
[snip]
Sorry, it's been a while and I was tired
What`s the difference between a JP and a JR, I don`t even mean
in T-States, but what varies between the way they work. If you`s
don`t mind me asking ?
JP reads in two bytes more to use as an address to jump to.
JR reads in only one more byte, to use as an offset from the current address
to
Thanks for the detailed reply :)
Can`t wait to be able to afford a Mayhem, hopefully sometime after
Christmas :) I`ve got loads of ideas, but it`s hard coding for it
on emulator in some ways.
anywayz,
If I had a black track instead of textured then there could even be no
need to mask the
Ah sweet :) soz for delay, just spent 45 mins typing another reply !
Handy command then JR
Colin Piggot [EMAIL PROTECTED] wrote: What`s the difference between a JP
and a JR, I don`t even mean
in T-States, but what varies between the way they work. If you`s
don`t mind me asking ?
JP reads
I meant to say, using a script, so that there`s not extra Let X=X+2 commands
needed and other stuff... I forgot to put the word not in :)
If a Basic prog was looked at once coded, could the MC be able
to read the Car1X, Car1Y variables straight to memory, rather than
having to use basic to poke
Thanks :) I`ve been reading the 1995 posts to the mailing list these
past few days, and it`s amazing how much I`m picking up from
those old old posts, so I`ve seen it mentioned that they run at around
the same speed on SAM, am I remembering right that it depends
where in screen the raster is when
Thank you, I`ve wasted far faar too much time on it, but it`s been enjoyable
and I`ve learnt a few tricks :) It`s just a pity that the game is such a non
game at the moment, but it will serve to show other`s hopefully if we can get
more Speccy Basic coder`s on the machine... there`s still a few
On 17 May 2007, at 23:24, Calvin Allett wrote:
Andrew Collier [EMAIL PROTECTED] wrote:
Because of the Sam's memory timings, using JR is usually as fast (or
slightly faster than) using JP. That may change with Mayhem
accelerator!
Thanks :) I`ve been reading the 1995 posts to the mailing
So the SAMs z80 really is actually slowed down quite considerably, I hadn`t
realised how much :(
Thanks for the details :)
Andrew Collier [EMAIL PROTECTED] wrote: On 17 May 2007, at 23:24, Calvin
Allett wrote:
Andrew Collier wrote:
Because of the Sam's memory timings, using JR is usually
