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thwill

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Joined: 16/09/2019
Location: United Kingdom
Posts: 4311

Posted: 10:06am 30 Oct 2021

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Hi,

I would like to be able to do things like this:

Const BATTERY_PIN% = GP26
...
SetPin BATTERY_PIN%, AIN
...
battery! = Pin(BATTERY_PIN%)

And then if I want to change the pin connected to the battery voltage I just need to change the BATTERY_PIN% constant.

This doesn't work because in this context GP26 is interpreted as an undefined variable.

Assuming you agree this is desireable, perhaps (space permitting) something like this might suffice:

Const BATTERY_PIN% = Mm.Info(PIN GP26)

or

Const BATTERY_PIN% = Pin(Index GP26)

Or alternatively allow string variables to be used for specifying the pin in SETPIN and PIN.

YMMV,

Tom
Edited 2021-10-30 20:14 by thwill

MMBasic for Linux, Game*Mite, CMM2 Welcome Tape, Creaky old text adventures

Mixtel90

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Joined: 05/10/2019
Location: United Kingdom
Posts: 7937

Posted: 10:56am 30 Oct 2021

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Doesn't sound unreasonable as

Const mypin = 1
Setpin mypin,din
a = Pin(mypin)
Print a

works fine but

Const mypin = GP0
Setpin mypin,din
a = Pin(mypin)
Print a

doesn't.

Saved 53 bytes
[2] SetPin mypin,din
Error : Pin 0 is reserved on startup
>

Edited 2021-10-30 20:59 by Mixtel90

Mick

Zilog Inside! nascom.info for Nascom & Gemini
Preliminary MMBasic docs & my PCB designs

thwill

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Joined: 16/09/2019
Location: United Kingdom
Posts: 4311

Posted: 11:16am 30 Oct 2021

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You are late to the game Mick, Peter implemented the MM.INFO based approach within 10 minutes of me suggesting it

.

Best wishes,

Tom

MMBasic for Linux, Game*Mite, CMM2 Welcome Tape, Creaky old text adventures

Mixtel90

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Location: United Kingdom
Posts: 7937

Posted: 11:33am 30 Oct 2021

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I saw that just after I'd posted. lol

I like my way better though. :)
Edited 2021-10-30 21:35 by Mixtel90

Mick

Zilog Inside! nascom.info for Nascom & Gemini
Preliminary MMBasic docs & my PCB designs

thwill

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Joined: 16/09/2019
Location: United Kingdom
Posts: 4311

Posted: 11:37am 30 Oct 2021

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Mixtel90 said I like my way better though. :)

What's your way? If it was for this to work:

Const mypin = GP26

then that would require one function slot for each GP constant.

Best wishes,

Tom
Edited 2021-10-30 21:54 by thwill

MMBasic for Linux, Game*Mite, CMM2 Welcome Tape, Creaky old text adventures

Mixtel90

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Location: United Kingdom
Posts: 7937

Posted: 12:00pm 30 Oct 2021

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I didn't say my way was better, just that I like it more. :) It's not practical, I don't think (but the conversion does take place elsewhere).

Mick

Zilog Inside! nascom.info for Nascom & Gemini
Preliminary MMBasic docs & my PCB designs

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