Thursday, September 13, 2018

Gen 2 update: stacks n keyboards.

SBTCVM's CPU makes some progress, as the cpu is now equipped with a whopping 2 stacks. 

Along with the cpu, SBTCVM Gen 2-9 is now capable of interactive programs, thanks to a new TTY Input device, that allows for a basic serial text interface.
Aside from the usual assembly enhancements, SSTNPL has gotten its share of changes too:

  •  you can now create variables based on character code values.
  •  you can read from the tty input buffer into a variable for easy parsing of keystrokes.
  • return is now stackable.
  • separate subroutine gotos are required to use return.
  • conditional returns are now available.

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