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TI-81: Difference between revisions
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== Programming == | == Programming == | ||
Programming on the TI-81 is far more limited compared to future models. All programs | Programming on the TI-81 is far more limited compared to future models. All programs must be typed in by hand, as there is no external connectivity of any kind. | ||
By default, it only allows writing programs in an early version of TI Basic. | By default, it only allows writing programs in an early version of TI Basic. They are all labeled from Prgm0-9, then PrgmA-Z, and Prgmθ. They can also be given a custom label. Each program is limited in line count and total memory consumption. | ||
In 2009, an exploit was found that allows the user to type in machine code directly.<ref>https://ticalc.org/basics/calculators/ti-81.html</ref> A program loader called [https://ticalc.org/archives/files/fileinfo/425/42572.html Unity] followed in 2010, describing itself as an "extension of the calculator operating system". It allows the user to mix TI Basic and Z80 instructions in programs, and acts as a psuedo-shell, providing an abort key sequence in the event of an error. | In 2009, an exploit was found that allows the user to type in machine code directly.<ref>https://ticalc.org/basics/calculators/ti-81.html</ref> A program loader called [https://ticalc.org/archives/files/fileinfo/425/42572.html Unity] followed in 2010, describing itself as an "extension of the calculator operating system". It allows the user to mix TI Basic and Z80 instructions in programs, and acts as a psuedo-shell, providing an abort key sequence in the event of an error. | ||
Due to the tedium and the limited amount of memory available, there aren't many programs available for the TI-81. What is available can be found on [https://ticalc.org/pub/81/ ticalc.org], where, as of the writing of this article, only '''187''' programs are archived. | Due to the tedium of typing in programs and the limited amount of memory available, there aren't many programs available for the TI-81. What is available can be found on [https://ticalc.org/pub/81/ ticalc.org], where, as of the writing of this article, only '''187''' programs are archived. | ||
== See also == | == See also == | ||