printing to home screen

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blacksoccer25	printing to home screen	Lead	[-]
Posts: 1 (2009-02-18 22:48:38) Reply Quote More My Recent Posts Message Me Connection Blocking Invite Report Post	Hey everyone - I apologize if this is very-much a beginner question, but i've tried searching all over the internet for an answer to this. I'm trying to write a very simple program for my 89 that acts in the background - and so cannot be detected if the calculator were to be handed to a random person. What I'm trying to do is, no matter what is put into the home entry line, a specific output is printed. For example: 1+2 304 3+5+7+9 304 I have no idea how to approach this however, as I don't even know a way to A) run a program in the background like this or B) print to the homescreen as if it were a normal calculator function And help would be much appreciated!
Kevin Kofler		#1	[-]
Posts: 6985 (2009-02-19 04:06:33) Admin Reply Quote More My Recent Posts Message Me Connection Blocking Invite Report Post	It would be pretty complicated for a beginner to write such a program. It would be fairly easy for me, but I think stupid jokes like this suck, so I won't waste my time helping you, sorry.
blacksoccer25		#2	[-]
Posts: 2 (2009-02-19 04:25:17) Reply Quote More My Recent Posts Message Me Connection Blocking Invite Report Post	In all honesty this isn't for a "stupid joke" - I wouldn't waste time to figure this all out if it were for something so trivial; I do have a purpose for this. If you could even point me in a starting direction that would be much appreciated (especially if it would be fairly easy for you).
Kevin Kofler		#3	[-]
Posts: 6986 (2009-02-19 06:18:16) Admin Reply Quote More My Recent Posts Message Me Connection Blocking Invite Report Post	Write an event hook, intercept the ENTER keypress event, check if we are in the homescreen and the entry line is focused, get the contents of the entry line, use push_parse_text on them, push a fake history pair with the just parsed expression as the computation and the bogus answer in tokenized form as the result.
Lionel Debroux		#4	[-]
Posts: 3006 (2009-02-19 08:51:17) Former Admin Reply Quote More My Recent Posts Message Me Connection Blocking Invite Report Post	If you plan on using this kind of programs as an anti-theft measure, maybe things like Samuel Stearley's Keypass would be more effective ?
blacksoccer25		#5	[-]
Posts: 3 (2009-02-19 09:18:45) Reply Quote More My Recent Posts Message Me Connection Blocking Invite Report Post	Thanks for the response. I was looking at using sampletsr2 to help with this (I assumed this is the approach you are suggesting). I downloaded it and compiled it without making any changes - so I could be sure that I could install it before I made changes that would screw everything up. However, when I go to install it in tiemu, after applying the hw3patch I receive an "invalid relocation data in asm program" error. I've tried running ghostbuster on the install file in hopes that it would fix any kind of compatibility issues; but to no avail. I'm using tigcc0.96beta8. Am I heading in the right direction and, if so, what could I possibly do to fix this error?
Lionel Debroux		#6	[-]
Posts: 3007 (2009-02-19 09:27:42) Former Admin Reply Quote More My Recent Posts Message Me Connection Blocking Invite Report Post	IIRC, there's a version of SampleTSR that contains the fix for the "invalid relocation data in ASM program" error, which is mentioned somewhere on the TIGCC/TICT message board. Try making a search on the TIGCC Programming and Custom Beta Tests sections. Maybe the topic wasn't destroyed when ezBoard was hacked, a while ago.
blacksoccer25		#7	[-]
Posts: 4 (2009-02-20 00:25:57) Reply Quote More My Recent Posts Message Me Connection Blocking Invite Report Post	Hmmm - I looked for a while. The topic was discussed several years back, but that was before the release of sampletsr2; where the original problematic asm code was replaced.
Lionel Debroux		#8	[-]
Posts: 3008 (2009-02-20 08:36:46) Former Admin Reply Quote More My Recent Posts Message Me Connection Blocking Invite Report Post	The "invalid relocation data in asm program" error is due to the EX_patch OS routine being called with an argument which points to the ghost space (the 0x40000-0x7FFFF area), and one which doesn't. Judging by the code in ttstart, both arguments must point to the ghost space, so you have to add 0x40000 to the one which doesn't. Hope this helps.
blacksoccer25		#9	[-]
Posts: 5 (2009-02-20 18:27:49) Reply Quote More My Recent Posts Message Me Connection Blocking Invite Report Post	pTsr=HeapDeref(tsrHandle)+0x40000; //Copy The tsr array to its new location memcpy(pTsr,tsr,sizeof(tsr)); //Save the Old tsr hook's address for the uninstall prog and for this hook to call (unsigned long)&pTsr[12]=(unsigned long)EV_hook; EX_patch(pTsr,pTsr+sizeof(tsr)); This code is in InstallHook.c - are you saying that the second argument of EX_patch needs an additional 0x40000...that doesn't seem to make sense to me. And thank you very much for your help thus far.
pinh3ad		#10	[-]
Posts: 49 (2009-02-20 18:52:21) Reply Quote More My Recent Posts Message Me Connection Blocking Invite Report Post	Some time ago, I programmed AMS Extender, a small tool to make life easier (at least when using a TI). Among other things it uses a TSR event hook, which works on all calculator models (i.e. TI89, TI92+, V200 and TI89 Titanium, requireing HW3Patch there, though). You may want to take a look at it, its source is fully available under the terms of the GPLv3. Feel free to ask questions if you don't understand some parts of the code.
blacksoccer25		#11	[-]
Posts: 6 (2009-02-24 23:20:42) Reply Quote More My Recent Posts Message Me Connection Blocking Invite Report Post	Great! Thanks pinh3ad - I've been pretty busy these past few days, but I think Thurs. I'll have a chance to look at your code and see what I do/don't understand and will let you know! Thanks again.
blacksoccer25		#12	[-]
Posts: 7 (2009-03-07 21:21:11) Reply Quote More My Recent Posts Message Me Connection Blocking Invite Report Post	I'm pretty sure I know how to capture the enter keystroke, then print what i need to into the home screen (based on pinh3ad's ams extender), but I still can't fix the "invalid relocation error" that occurs when I try to install sampletsr2. Is the EX_patch function the issue? If so I'm not sure how to fix it - isn't already pointing to the ghost space? Any help would be much appreciated - I only have 5 days now to get this finished...
pinh3ad		#13	[-]
Posts: 50 (2009-03-07 22:11:41) Reply Quote More My Recent Posts Message Me Connection Blocking Invite Report Post	Why don't you use AMS Extender as a start point? It works on all 68k calculators, and contains many improvements to sampletsr2. If you need some help to modify my program for your needs, feel free to contact me
blacksoccer25		#14	[-]
Posts: 8 (2009-03-10 04:15:19) Reply Quote More My Recent Posts Message Me Connection Blocking Invite Report Post	I'm having trouble with the last of Mr. Kofler's instructions - pushing the fake history pair to the estack. I was looking at the tigcc docs but don't know which of the functions to use. Could anyone help me out with this? Thanks! Edit: And immediately after posting I discovered HomePushEStack. I'll mess around with it and will come back if I have problems. Last Edited By: blacksoccer25 2009-03-10 04:20:14. Edited 1 times.
blacksoccer25		#15	[-]
Posts: 9 (2009-03-10 05:23:47) Reply Quote More My Recent Posts Message Me Connection Blocking Invite Report Post	pin3ad - I've been applying my changes to your eventhook file, but it seems as though there is no change when i compile it. Your batch scripts weren't finding the files, so I have been compiling each one - eventhook, trap4hook, and then amsextender_uc one at a time through the tigcc ide. As a test, I went through and deleted almost all of your eventhook functions, but after compiling everything still works as if I deleted nothing (once I install it in TiEmu). I'm getting kind of crunched for time here so am starting to get a little nervous...
Kevin Kofler		#16	[-]
Posts: 6999 (2009-03-10 06:54:29) Admin Reply Quote More My Recent Posts Message Me Connection Blocking Invite Report Post	You need to compile the event hook first, then convert it into an array, then compile the installer with the updated array.
pinh3ad		#17	[-]
Posts: 51 (2009-03-10 08:30:22) Reply Quote More My Recent Posts Message Me Connection Blocking Invite Report Post	As Kevin said, compiling the eventhook through the TIGCCIDE does not work. The easiest way would be to adapt my batch file to fit your machine: Just change two path variables: ttbin2hex_path and tprbuilder_path to the path where you keep your copy of ttbin2hex (part of the TIGCC Tools Suite, check out ticalc.org) and tprbuilder (if I recall correctly, part of TIGCC), respectively.
blacksoccer25		#18	[-]
Posts: 10 (2009-03-10 09:11:34) Reply Quote More My Recent Posts Message Me Connection Blocking Invite Report Post	Bingo - I got it compiling correctly thank you. Still having some trouble using HomeStorePair. It seems whatever I try results in a history pair of <<...>> for both the entry and the answer. I've tried searching for an example where this function is used but to no success. Secondly, is there a way to stop the true history pair from being displayed on the home screen? I would assume that would involve popping the expression from the estack before it is calculated but I'm not sure how to do that (or if that's the correct method).
blacksoccer25		#19	[-]
Posts: 11 (2009-03-11 05:49:43) Reply Quote More My Recent Posts Message Me Connection Blocking Invite Report Post	Ok. I figured out how to stop the true history pair from being displayed. But I still am unsure how to use HomeStorePair correctly. I want what is entered to be in the entry slot and a bogus answer to be in the answer slot.
blacksoccer25		#20	[-]
Posts: 12 (2009-03-11 07:58:37) Reply Quote More My Recent Posts Message Me Connection Blocking Invite Report Post	Is the following code even kind of on the correct path? entryLineText is of type string push_parse_text(entryLineText); HANDLE entryhandle, anshandle; unsigned char* ptr; int answer = 12345; short entrySize = sizeof entryLineText; short ansSize = sizeof (int); entryhandle = HeapAlloc(entrySize + 3); anshandle = HeapAlloc(ansSize + 3); ptr = HeapDeref(entryhandle); (unsigned short)ptr = entrySize + 1; ptr[2] = ENDSTACK_TAG; memmove(ptr + 3,&entryLineText-entrySize+1, entrySize); push_longint(answer); ptr = HeapDeref(anshandle); (unsigned short)ptr = ansSize + 1; ptr[2] = ENDSTACK_TAG; memmove (ptr + 3,&answer-ansSize+1, ansSize); HomeStorePair(entryhandle, anshandle); Thanks again to everyone who has helped me so far. This is the final thing I need before my program is up and running.

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