TI-59

Boots the TI-59 to its red LED display showing 0., ready for entry. Type on the on-screen TI-59 keyboard, or use your physical keyboard for the digits, . , + − × ÷, = (Enter) and the CLR key (Space). Press 2nd (Esc) and INV (i) as prefixes; LRN, R/S, SST, BST, RST, STO and RCL drive programming. Open the debugger to single-step the TMC0501 arithmetic chip, read and write its A/B/C/D/E digit registers and the data RAM, set breakpoints and RAM write-watchpoints. The TI-59 system ROM is copyright Texas Instruments; the reverse-engineered dump is self-hosted for emulation.