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Get a value after the call (*solved*)
Sinclair Wrote:Is there any way that a program in ZX BASIC returns a value?

That I need is, once end my program this return a value to the +3 BASIC as in the following example:

10 LOAD "program.bin" CODE 32768
20 LET r =  USR 32768
30 PRINT r

Thank you.
This case is the same as in normal machine code. The value you can return is always a 16 bit integer stored in the BC register.
You can use END for that:

END 27613

Other than that, you must store the result in RAM and BASIC must PEEK from there.

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