nxtBasic error with STA "A"

[funkheld]

hello, good day.

here is an error with nxtbasic.

thanks.
greeting

---------------------------------
STA "A" 'puts a "A" in the accumulator
SYS $FFD2 'Calls the kernal CHROUT subroutine to print the A on the screen
PRINT GETA 'as the accumulator is not changed by CHROUT, this will return the value 65
---------------------------------

[unartic]

hello, good day.

here is an error with nxtbasic.

thanks.
greeting

---------------------------------
STA "A" 'puts a "A" in the accumulator
SYS $FFD2 'Calls the kernal CHROUT subroutine to print the A on the screen
PRINT GETA 'as the accumulator is not changed by CHROUT, this will return the value 65
---------------------------------

Hi! The documentation is incorrect.

STA "A" should be LDA "A"

I'll correct the docs asap

[funkheld]

hello, thanks for info.

I thought you could use this sta now too.
Could you extend this asm so that it works with sta too?

you made a great nxtBasic.

thanks.
greetings

[Ed Minchau]

No, the language can't be extended; the opcodes are hardwired. Even if we could, STA A would be a useless command, "store the contents of the accumulator in the accumulator".

[unartic]

hello, thanks for info.

I thought you could use this sta now too.
Could you extend this asm so that it works with sta too?

you made a great nxtBasic.

thanks.
greetings

To load a value in the processor registers you can use:

LDA "A"
LDX "A"
LDY "A"

To retrieve a value from one of the processor registers, you get use:
var$ = GETA()
var$ = GETX()
var$ = GETY()

[funkheld]

hello thanks for info.

greeting

[funkheld]

If I have compiled a basic, where is the ASM program?

I would like to take a look at it, please.

Which assembler did we use to make a prg from the ASM, please?

Thanks.
Greetings

[unartic]

The program is assembled with a custom assembler Ive developed myself (build in). If you compile with -debug option a debug folder is created in wich you’ll find the compiler steps, which includes the assembly listing.

[funkheld]

hello, good day.

there are wonderful ASM assemblers for the x16.

why is the wheel being reinvented here?

I would have preferred to see more light in the ASM code than more secrets.

Can you recompile the asm code that you see with -debug?

thanks.
greetings

[unartic]

hello, good day.

there are wonderful ASM assemblers for the x16.

why is the wheel being reinvented here?

I would have preferred to see more light in the ASM code than more secrets.

Can you recompile the asm code that you see with -debug?

thanks.
greetings

I wanted to make sure there are no dependency's. So, just download nxtBasic and it runs. As this is a Basic language, I recon the assembly side if of little interest

It is not possible to compile files in the /debug folder.

If you want to have look at how the build in functions work, the /asm folder is your friend.