Re: How to make an Applesoft Basic program Brun-able

[Steve Nickolas <usotsuki@buric.co>]

On Fri, 20 Jul 2012, bpiltz@gmail.com wrote:

> 4. BSAVE <myprogram>,A$7FD,L$(length+$17)
> 5. Exomize. Automize (thanks uso!). Strip the first 12 bytes of the 
> exomized file and BSAVE. The code compresses very well, more than 50%!

*^^*

> 6. Beautiful Boot.
>
> One snag. Directly from the Beautiful Boot menu, the Brun-able BASIC 
> Code executes, but in strange symbolic text, and at very slow display 
> speed (probably SPEED has been set to zero). Typing NORMAL: SPEED=255: 
> RUN in direct command mode fixes these issues. So, a couple more 
> questions:
>
> 1. What is the address to the ROM routine for NORMAL?

$FE84

> 2. What zero-page memory address contains the value for SPEED= ? This 
> needs to be set to $FF manually.

$F1, but you'll want to set it to 1, not 255.

> Wow! The benefits include having a full $B700 bytes for BASIC code, 
> without needing to load DOS in language card, extra speed of execution 
> due to not having to worry about the overhead of DOS. Caveat is no disk 
> activity is possible in BASIC code, but that is not an issue for 95$ of 
> the BASIC programs I'll be making BRUNable.

-uso.