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alynna Newbie Joined: 05/10/2021 Location: United StatesPosts: 28
Posted: 10:24pm 08 Oct 2021
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Got it, i'll scrap that idea. The inline assembler seems like it will be more fun anyway... a bit more acorn-like.
Long ago (like 20 years) I wrote an extension for C64 BASIC that allowed you to inline assembler. In the most awesome way:
10 x%=0:inc x%:lda x%:sta $d020:?x,:goto 10
The variable would always be replaced with the location of the variable. Good for working with strings. Ints were a little more tricky, being two bytes, but the syntax like a$[4] would autoload the y register and create instructions like lda (location of a$),y. And for ints, if you did lda >x%, that would translate to lda (location of x% + 1).
So I already have an idea for expanded syntax for the assembler... Edited 2021-10-09 08:26 by alynna
alynna Newbie Joined: 05/10/2021 Location: United StatesPosts: 28
Posted: 10:34pm 08 Oct 2021
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So umm, are you ok with this change:
> run "memfunc-test" Program memory size: 824 Program lines: 21 Variable memory size: 3328 Variable count: 4 String var size: 3072 Total flash memory: 524288 Saved variable size: 0 Saved variable count: 0 Font memory size: 0 Font count: 0 C Function memory size: 0 C Function count: 0 Heap size: 2816 Total memory: 5472000 Used memory: 6968 Free memory: 5465032
> list 'Make some variables for the heck of it tails = 6 fox$ = "The quick brown fox jumped over a lazy dog." g! = 4.669201609 dim a$(10)
Now that I know about the issue with tokens, I could fit more functionality into existing tokens. Are you OK with contributions back? How would I send them to you?
alynna Newbie Joined: 05/10/2021 Location: United StatesPosts: 28
Posted: 10:39pm 08 Oct 2021
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alynna Newbie Joined: 05/10/2021 Location: United StatesPosts: 28
Posted: 10:42pm 08 Oct 2021
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Oh, another question. Is the CPU running with 32 or 64 bit registers? Also is there a way to run the BASIC from RAM? I am not sure of the longevity of my flash ... Edited 2021-10-09 08:45 by alynna
lizby Guru Joined: 17/05/2016 Location: United StatesPosts: 3378
alynna Newbie Joined: 05/10/2021 Location: United StatesPosts: 28
Posted: 11:46pm 08 Oct 2021
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When I say "run from RAM" btw I mean the BASIC itself, not the programs..
toml_12953 Guru Joined: 13/02/2015 Location: United StatesPosts: 442
Posted: 12:19am 09 Oct 2021
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The BASIC memory area isn't written to. Only flash writes significantly affect the lifespan. Reads are essentially free!
alynna Newbie Joined: 05/10/2021 Location: United StatesPosts: 28
Posted: 02:13am 09 Oct 2021
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I've been flashing new builds of MMBasic regularly. So far I have done it about 25 times while debugging it and learning how the source code works. How many times do people think I can do that until the flash gets angry?
The TL;DR of it is I want to run the *firmware* from RAM until it does what I want, then flash it. Possible? Edited 2021-10-09 12:16 by alynna
lizby Guru Joined: 17/05/2016 Location: United StatesPosts: 3378
Posted: 02:41am 09 Oct 2021
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There's this:
From this thread, where flash write issues for the CMM2 were first addressed.
Notice. New forum software under development. It's going to miss a few functions and look a bit ugly for a while, but I'm working on it full time now as the old forum was too unstable. Couple days, all good. If you notice any issues, please contact me.
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