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DIY prototype RPN/TENKEY programmable calc with printer <:3)--
02-20-2021, 07:46 PM
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RE: DIY prototype RPN/TENKEY programmable calc with printer <:3)--
Here is FPGA VGA implementation, along with some other features.

That includes:
-3 modes of operation for VGA screen(NORMAL, MEMORY and printer emulation), those modes are fully independent of alphanumeric LCD display modes.
-External SPI flash (W25Q64) for permanent program storage.
-Programs can have 16 character alphanumeric names (to make them easy to find on external SPI flash).
-Conditional jumps are now a thing, better late than never ;-)
-Same with subroutines.
-PRINT display mode, it shows 2 most recently printed lines on left LCD screen and 4 lower levels of RPN stack on right screen. That mode works even with external printer disabled.
-Backspace function added, you can backspace numerical and alphanumerical input.



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RE: DIY prototype RPN/TENKEY programmable calc with printer <:3)-- - macieksoft - 02-20-2021 07:46 PM



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