Text question

[victor kwok]

I know how to put text on the normal screen using z80( taught in many tutorials) but I really want to know if there is any way to put the text in the graph screen because no tutorial talks about this.[size="7"] Please HELP!!!!!!!!!!![/size]

[victor kwok]

I know how to put text on the normal screen using z80( taught in many tutorials) but I really want to know if there is any way to put the text in the graph screen because no tutorial talks about this.

[Weregoose]

What have you tried?

[DrDnar]

You need to check the TI SDK documentation. I believe there is a flag you set that makes the normal font routines write to the graph buffer.

[Madskillz]

Now do you mean the graph screen style text instead of your standard Large font used on the home screen or do you mean something else?

Edit: I see what you mean. I was being dumb ha.

There is a flag you need to set I think it is textWrite, (IY + sGrFlags) = 1 will write to the graph buffer and 0 will write small text on the display

[victor kwok]

I have setted the flag as you said, but it still can't do it , what is the problem please help
here is what I wrote:
.nolist
#include "ti83plus.inc"
.list
.org $9D93
.db t2Bytetok, tAsmCmp
set textWrite,(IY + sGrFlags)
b_call(_ClrLCDFull)
ld hl,text
b_call(_PutS)
res textWrite,(IY + sGrFlags)
ret
text:
.db "testing",0
.end
.end

[Madskillz]

[FloppusMaximus]

PutS draws directly to the LCD, never to the graph buffer. The textWrite flag only affects the VPutMap, VPutS, and VPutSN routines. Furthermore, when textWrite is set, the routines only draw text to the graph buffer, not to the LCD, so you then need to copy the graph buffer to the screen when you're done (e.g., using GrBufCpy or ionFastCopy.)

If you want to display the large font (as with PutS) on the graph buffer, you can set fracDrawLFont, (iy + fontFlags), when calling VPutMap and VPutS.

Be sure that you reset both the textWrite and fracDrawLFont flags before exiting your program.

[victor kwok]

Thanks a lot! I've finally managed to put text on the graph screen. I also want to know how to put a point/dot on graph screen and a line not from end to end. Thanks again!

[Madskillz]

I know there are a couple of different ways to draw lines and a few different bcalls that you could use if I remember correctly.

If speed isnt an issue you could use bcall(_darkline)

[FloppusMaximus]

Also, there's the bufferOnly flag, which draws to the graph buffer only (like textWrite does for text.) That mode is the fastest, but it's still rather slow.

All this stuff (IPoint, ILine, DarkLine, etc.) is documented in the SDK.

In a MirageOS or DoorsCS program, you can use the shell's point and line drawing routines. These routines only draw to the graph buffer, but are much faster than the OS's routines. The line drawing routines don't support clipping, however.

[victor kwok]

This is my window size:
Xmin=-10
Xmax=10
Xscl=1
Ymin=-10
Ymax=0
Yscl=1
Xres=1
This is what I wrote:
.nolist
#include "ti83plus.inc"
.list
.org $9D93
.db t2ByteTok, tAsmCmp
b_call(_clrlcdfull)
ld bc,7*256+10 ;start point 7,10
ld de,9*256+10 ;end point 9,10
ret
.end
.end

But the line didn't appear, what's wrong??

[calc84maniac]

Maybe because you didn't actually call a line routine?

[Madskillz]

Ya there is more to it in my post.

I dont know if you've read over asmin28days but that is a pretty good set of tutorials...which I will have to look over again as well ha

[victor kwok]

I have read it, but somehow i don't understand much

[Madskillz]

I think Hot_Dog tried to remedy that issue with his release of tutorials. I know they are at www.omnimaga.org but they are undergoing a hosting change and I cant see anything yet. But you might be able to check them out. I'll post a link as soon as I can get into their forum.

edit:
I got in using a proxy, here is the link to them. Caution though they are a beta release.
Click Here