Grammer Q&A

[Xeda112358]

I figured a Questions and Answers topic for Grammer might be useful now that Grammer is picking up new programmers
So if anybody has questions, feel free to ask! I will try to be on often enough to answer questions with code or comments

[Yeong]

How long should the interrupt code be

[Xeda112358]

Hmm, I'm not actually sure I don't seem to have a problem with having multiple DispGraphs in there (I tried 6) and those are the slowest commands. I will have to test code to see what works and what doesn't...

EDIT: That is a very good question, by the way

[Yeong]

I'm asking this because most of the time, it just crashed if I put too much in interrupt label

[Xeda112358]

Ah, okay. I've only ever used interrupts to toggle two buffers, so I only had something like this as my interrupt:

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1 2 3 4

DispGraphH DispGraphI End

[Stefan Bauwens]

Now I come to think of it, Grammer should actually have it's own forum.(I don't think it does, right?)

[Xeda112358]

No, it doesn't yet That is why I have been avoiding making a topic like this >.>

[Scipi]

Ok, I guess my biggest question is how do I make an array that I can access?

[Yeong]

First, you can create program or appvar like this:
Send(size,"UTEMP->B
This will create appvar TEMP and store it into pointer B.

and then:
B[4,4,4,4,4,4,4,4,4,4

This will store 4 into first 10 bytes of that appvar TEMP.

[Xeda112358]

Well if you wanted to create a 128 byte array for temporary storage, I would create a TempProg (the prefix byte is V or 6). Since Send( will let you do this and it returns the pointer to the var, this is what you would want to do:

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1 2	Send(128,"6Temp→Z     ;Z now points to the Array

Lowercase is allowed in the name and weird symbols are encouraged to avoid conflicting with preexisting programs
Now you can use Z as a pointer. There are several commands that might be useful:

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int(Z,A will write the lower 8-bits of A to the memory location Z iPart(Z,A will write A to the memory location Z in little endian (Z will read the byte at Z {Z will read the word (little endian) at Z IS>(Z will read the byte at Z and then increment Z

There are also various other commands if you need other specific things done...


EDIT:Also what Yeong said ^_^

[Scipi]

Ok, so how would I access the information?

would B + 1 get me the 2nd byte? Also, how would I add more data to the end?

Edit: Ninja'd

[Yeong]

accessing byte
if it's 8bit number, do (B+1)
if it's 16bit number, do {B+1}
EDIT: didn't see that post XP

[Xeda112358]

Adding more data to the end... there is not a command yet (I plan to eventually add that as augment(, though).
And yes, B+1 will access the second byte

Also, the ) and } are solely for aesthetics. Grammer doesn't actually recognise them

[BlakPilar]

What are the differences between the app version and the program version? (or is there only the app version now?)

[Yeong]

Also, the ) and } are solely for aesthetics. Grammer doesn't actually recognise them

But it looks nice and clean that way