BASIC V4 MONITOR commands?

Basic and Machine Language

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Commodorianen
Vic 20 Newbie
Posts: 9
Joined: Fri Jun 02, 2017 11:56 am
Location: Sweden

BASIC V4 MONITOR commands?

Postby Commodorianen » Wed Aug 02, 2017 6:27 am

BASIC V4 has a primitive machine language monitor that you can start with the MONITOR command. Does anyone know the commands you can invoke in the monitor? I haven't been able to do anything except showing registers with R and quitting with X.

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srowe
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Posts: 456
Joined: Mon Jun 16, 2014 3:19 pm

Re: BASIC V4 MONITOR commands?

Postby srowe » Wed Aug 02, 2017 10:49 am

I've made a complete disassembly of the BASIC4 code

https://eden.mose.org.uk/gitweb/?p=rom-reverse.git;a=blob;f=src/basic4.asm;hb=HEAD

In summary the commands are:

  • M - memory dump
  • R - register dump
  • X - exit to BASIC
  • G - go
  • : - edit memory
  • ; - edit registers
  • L - load
  • S - save

Commodorianen
Vic 20 Newbie
Posts: 9
Joined: Fri Jun 02, 2017 11:56 am
Location: Sweden

Re: BASIC V4 MONITOR commands?

Postby Commodorianen » Wed Aug 02, 2017 3:01 pm

Nice, thank you :-) .


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