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Darth Android
DragonOS Dev Team
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Joined: 31 May 2003
Posts: 2104
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 Posted: 02 Nov 2003 01:56:28 am Post subject: |
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ok, here was my attempt:
Code:
.nolist
#define end .end
#define END .end
#define equ .equ
#define EQU .equ
#define FindSym 10h
#define Mov9ToOp1 20h
#include "ti83plus.inc"
.list
.org 9D95h
ld hl,AppBackUpScreen;pointer to free RAM
ld (hl),text;copy text to ram
ld hl,str1;put string pointers into HL
rst Mov9ToOp1;copy HL to Op1
rst FindSym;Check to see if it exists
jr C,Exists;if does, good
b_call(_DelVarArc);else, delete it
Exists:;it exists!
bcall(_CreateStrng);create Str1
inc DE
inc DE;bypass the size bytes
ld HL,AppBackUpScreen;put address into HL
ld BC,10;copy 10 bytes
ldir;copy them to Str1
ret
text:
.db "~`!@#$%&_ƒ",0
str1:
.db StrngObj,tVarStrng,tStr1,$00
.end
.end
couldnt even get it to compile! plz help |
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Jeffrey
Member
Joined: 12 Jun 2003
Posts: 212
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| Posted: 02 Nov 2003 03:25:59 pm Post subject: |
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Ok, this is fairly simple, but I havent seen it in any tutorial...
Code:
ld hl,str1
rst 20h;same as mov9toOp1, but faster,less size
bcall(_ChkFindSym)
jp nc,exists;if it exists, then go to exists
ld hl,100
bcall(_CreateStrng);create the string, we already have OP1
exists:
ld hl,str1
rst 20h
bcall(_chkFindSym)
push de
ld a,b
cp 0;b held the rom page, it was zero if in ram
jp z,gonow
bcall(_arc_unarc);unarchive it
gonow:
pop de
inc de
inc de
ld hl,text
ld bc,10;length of string
ldir ;copy
ret
text:
.db "ABCDEFGHJ",0
str1:
.db StrngObj,tVarStrng,tStr1,$00
Ok, an explanation, line by line:
Code:
ld hl,str1
rst 20h;same as mov9toOp1, but faster,less size
bcall(_ChkFindSym)
jp nc,exists;if it exists, then go to exists
ld hl,100
bcall(_CreateStrng);create the string, we already have OP1
The ld hl,str1 loads the name of string 1 into hl
Next the "rst 20h" is the optomized form of mov9toOp1, so now we have hl in OP1
We then run Chk Find sym
If String one exists, then hump to the exists label
Otherwise continue on. Load 100 into hl. 100 is the size in bytes of the string
Create a new string
Code:
exists:
ld hl,str1
rst 20h
bcall(_chkFindSym)
push de
ld a,b
cp 0;b held the rom page, it was zero if in ram
jp z,gonow
bcall(_arc_unarc);unarchive it
The exists label
Do the same thing as above, using chkfind sym
Save "de" for later, as it will get trashed
Check find sym returns whether the string is archived or not in b, so for comparing load b into a.
Compare to 0
If it is zero, then it is in RAM, so go to "gonow"
Otherwise, unarchive it.
Code:
gonow:
pop de
inc de
inc de
ld hl,text
ld bc,10;length of string
ldir ;copy
ret
text:
.db "ABCDEFGHJ",0
str1:
.db StrngObj,tVarStrng,tStr1,$00
GoNow label
Pop de off the stack to be used. Remember de is the beginning of the variable's data area.
Increase twice to get by all the size data,etc
load into hl the location of the text
load into bc the size of the text (remember the 0 terminator)
ldir to copy
return to system
____________________________________________________
Its not too hard, and my code is unoptomized so that makes it a little easier to underdstand. Remember that we set the new string's size to 100 bytes, so there will be ? marks in the end of the string when you run this program!
If you need anymore help just ask. I know very little ASM, but am willing to teach what I know. Just PM me if that is the case.
Last edited by Guest on 02 Nov 2003 03:28:44 pm; edited 1 time in total |
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Darth Android
DragonOS Dev Team
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Joined: 31 May 2003
Posts: 2104
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| Posted: 02 Nov 2003 06:25:24 pm Post subject: |
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ok, thx!
and i can specify different vars by chaging the stuff at label str1?
sweeetttt....
thx again! |
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Darth Android
DragonOS Dev Team
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Joined: 31 May 2003
Posts: 2104
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| Posted: 02 Nov 2003 08:37:00 pm Post subject: |
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um, small problem. tried to compile. got 3533 errors, most with my include file...
here is final code:
Code:
#define end .end
#define END .end
#define equ .equ
#define EQU .equ
#include "ti83plus.inc"
.list
.org 9D95h
ld hl,str1
rst 20h;same as mov9toOp1, but faster,less size
bcall(_ChkFindSym)
jp nc,exists;if it exists, then go to exists
ld hl,100
bcall(_CreateStrng);create the string, we already have OP1
exists:
ld hl,str1
rst 20h
bcall(_chkFindSym)
push de
ld a,b
cp 0;b held the rom page, it was zero if in ram
jp z,gonow
bcall(_arc_unarc);unarchive it
gonow:
pop de
inc de
inc de
ld hl,text
ld bc,12;length of string
ldir ;copy
ret
text:
.db "~`@#$%&_|\/;",0
str1:
.db StrngObj,tVarStrng,tStr1,$00
.end
.end
any ideas? im using the sdk from asm in 28 days, i know it worked at one point, got another program of mine to compile, though all of a sudden it doesnt like my ti83plus.inc file. hmmm... |
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Jeffrey
Member
Joined: 12 Jun 2003
Posts: 212
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| Posted: 02 Nov 2003 09:23:43 pm Post subject: |
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Well, it sounds like the include file, as you said.
I compiled my code and it worked fine, so it must be your include file. There are different ways of writing your asm code, and I use the cirrus include file. You can find it here.
I always use that for my ASM.
If that doesnt work, just download the whole SDK from the cirrus website, it has always worked for me, the only problems I have had have been with compiling applications, and I fixed that. |
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Darth Android
DragonOS Dev Team
Bandwidth Hog
Joined: 31 May 2003
Posts: 2104
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| Posted: 03 Nov 2003 12:09:39 am Post subject: |
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thx, i got that, and it finnaly worked
um, how come i cant put @#$%& chars in the string? i cant even put lowercase 
TESTING does fine, but testing returns RadianDegreeFix Radian...
any clue how i can get around this?
edit: could i use the hex values?
Last edited by Guest on 03 Nov 2003 12:15:06 am; edited 1 time in total |
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Jeffrey
Member
Joined: 12 Jun 2003
Posts: 212
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| Posted: 03 Nov 2003 11:36:30 am Post subject: |
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| I think you could use the hex values, though I am not entirely sure. Try enabling lowercase. |
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sgm
Calc Guru
Joined: 04 Sep 2003
Posts: 1265
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| Posted: 03 Nov 2003 02:45:58 pm Post subject: |
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Darth Android wrote: um, how come i cant put @#$%& chars in the string? i cant even put lowercase
TESTING does fine, but testing returns RadianDegreeFix Radian...
That's because the TI's string variables are considered by TIOS to contain tokens, as it happens, the vaules for 't' 'e' 's' etc. happen to match the token values for 'Radian' 'Degree' 'Fix', etc. As for actual lowercase letters, Those are two byte tokens. Try
.db t2ByteTok, 't'
.db t2ByteTok, 'e'
If that doesn't work, experiment. CalcSys can be useful in this situation. |
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John Barrus
Member
Joined: 25 May 2003
Posts: 131
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| Posted: 03 Nov 2003 03:32:25 pm Post subject: |
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| Ticalc.org has a new file for today for the TI-83+. It's called 'Token Viewer'. It gives the hex symbols for every token. That might prove useful. |
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Darth Android
DragonOS Dev Team
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Joined: 31 May 2003
Posts: 2104
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| Posted: 03 Nov 2003 05:44:55 pm Post subject: |
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ah, thank you all!
now as i asked earlyer, can most other variables be accesed by changing the stuff at label str?
edit: coudl i use .db t2ByteTok,$OD or somthing?
Last edited by Guest on 03 Nov 2003 06:49:51 pm; edited 1 time in total |
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Jeffrey
Member
Joined: 12 Jun 2003
Posts: 212
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| Posted: 03 Nov 2003 07:23:29 pm Post subject: |
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Yeah, for the most part. Things like appvars: AppvarObj,"NAME",0
or programs: ProgObj,"NAME".0 |
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Darth Android
DragonOS Dev Team
Bandwidth Hog
Joined: 31 May 2003
Posts: 2104
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| Posted: 12 Nov 2003 09:15:01 am Post subject: |
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| ok, simple enough, i guess |
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Z80 & 68k Assembly => z80 & ez80 Assembly
