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A while ago, I made a patch to (completely) disable the Push-to-test in OS 2.43 and 2.53MP. It's complementary with the brandonw patch.Technical banter: Brandon's patch renders _SetAppRestrictions useless, along with some Testgrd2 related stuff, if I recall correctly. My patch messes with the PTT code itself, to disable the hook kill and the group/pic reset. (bcall _PTTReset iirc).http://www.ticalc.org/archives/files/fileinfo/425/42591.htmlhttp://www.ticalc.org/archives/files/fileinfo/418/41803.html
Quote from: mapar007 on November 13, 2010, 01:06:25 pmA while ago, I made a patch to (completely) disable the Push-to-test in OS 2.43 and 2.53MP. It's complementary with the brandonw patch.Technical banter: Brandon's patch renders _SetAppRestrictions useless, along with some Testgrd2 related stuff, if I recall correctly. My patch messes with the PTT code itself, to disable the hook kill and the group/pic reset. (bcall _PTTReset iirc).http://www.ticalc.org/archives/files/fileinfo/425/42591.htmlhttp://www.ticalc.org/archives/files/fileinfo/418/41803.htmlNice, but what is the push to test?
Quote from: ScoutDavid on November 13, 2010, 01:11:46 pmQuote from: mapar007 on November 13, 2010, 01:06:25 pmA while ago, I made a patch to (completely) disable the Push-to-test in OS 2.43 and 2.53MP. It's complementary with the brandonw patch.Technical banter: Brandon's patch renders _SetAppRestrictions useless, along with some Testgrd2 related stuff, if I recall correctly. My patch messes with the PTT code itself, to disable the hook kill and the group/pic reset. (bcall _PTTReset iirc).http://www.ticalc.org/archives/files/fileinfo/425/42591.htmlhttp://www.ticalc.org/archives/files/fileinfo/418/41803.htmlNice, but what is the push to test?There's a good explanation of it in the review for the second file mapar linked.It's something TI added to TIOS 2.40. When a key combination is held down when the calculator is off, it brings up a PTT menu that lets you disable the running of applications and programs until a file is sent to it from another calculator.It's for teachers.
I heard in the past there are a lot of teachers who use it and they forget to disable it on people calc after exams. In the case an user has no friend with a link cable or a computer at home, they're screwed and lose their entire calc RAM.By the way, do patches simply find/replace code in the OS or do they just modify/insert code at a specific memory address? If it's the former, I assume multiple patches can be installed at once without much risks of conflicts, right?Maybe there should be a topic listing every existing OS patches for calculators, since most of them are not on ticalc.org.