GMS30004 Datasheet, PDF (100/158 Pages) Hynix Semiconductor – 4-BIT SINGLE CHIP MICROCOMPUTERS

Chapter 5. Software
[CTRL]-[A] - command recall
[Explanation]
Repeat the previous command to execute in command prompt>. memorize up to
maximum 16 previous commands. That is to say, the previous commands are
displayed as many times as [CTRL]-[A] key is pressed.
! [Dos command] - dos shell
[Explanation]
Make it possible to execute the dos command within the simulator environment.
[e.g]
>! dir
- - - directory listing
>
---
5 - 46