Author Topic: Using the nib{ command [solved] :D (Read 2972 times)

parserp · « **on:** January 07, 2012, 02:50:41 pm »

So, If I have a 176 byte tilemap in L1, (a number from 0-15) and I want to have it stored in an appvar, but in 88 bytes using the nib{ command, how would I do that?
...And then to get the information from the appvar and copy it to L1 again?

leafy · « **Reply #1 on:** January 07, 2012, 02:53:03 pm »

Alternatively you could just do something like:

GetCalc(Str01)→V
For(A,0,87)
{A*2+L1→B}*16+{B+1}→{A+V}
End

parserp · « **Reply #2 on:** January 07, 2012, 02:57:01 pm »

Quote from: leafiness0 on January 07, 2012, 02:53:03 pm

Alternatively you could just do something like:

GetCalc(Str01)→V
For(A,0,87)
{A*2+L1→B}*16+{B+1}→{A+V}
End

ah, that makes sense. but how would I decode that?

leafy · « **Reply #3 on:** January 07, 2012, 02:59:47 pm »

To convert it from nibbles to bytes just do the opposite:

GetCalc(Str01)→V
For(A,0,87)
{A+V}→C/16→{A*2+L1→B}
C^16→{B+1}
End

(Someone correct me if I'm wrong)

parserp · « **Reply #4 on:** January 07, 2012, 03:11:07 pm »

yay it worked! thanks leafy!

Quigibo · « **Reply #5 on:** January 07, 2012, 05:57:02 pm »

If you want to use the nib{} command to avoid the unoptimized division and multiplications, you could do it like:

Code: [Select]

GetCalc(Str01)→V
For(A,0,175)
{L1+A}→nib{V*2+A}
End

And to decode, its as simple as reversing the store:

Code: [Select]

GetCalc(Str01)→V
For(A,0,175)
nib{V*2+A}→{L1+A}
End

Author Topic: Using the nib{ command [solved] :D (Read 2972 times)

parserp

Using the nib{ command [solved] :D

leafy

Re: Using the nib{ command

parserp

Re: Using the nib{ command

leafy

Re: Using the nib{ command

parserp

Re: Using the nib{ command

Quigibo

Re: Using the nib{ command [solved] :D