calling a SUB or FUNC from an ISR
TransistorToaster
Posts: 149
Hello,
Just wondering if anybody managed to call a SUB or a FUNC from an ISR in SX Basic. I tired declaring the SUB and FUNC in various places of the template, but with no success. I use the following template outline:
INTERRUPT 1000
ISR_start:
...code
ISR_Exit:
PROGRAM Start
subname SUB 2
Start:
Main:
GOTO Main
Now, subname SUB 2 declared that way allows subname to be called from anywhere except from the ISR, where the compiler complains with an "unknown command". If I declare it before INTERRUPT 1000, then I get"overwriting same program counter data." If I declare it after INTERRUPT 1000, then I in the dissasembly, I get a JMP right away at addess 0. Maybe I could declare the subname SUB 2 totally at some arbitrary point in the middle of the ISR and GOTO around it, but that looks messy.
What do I do?
Frank
Just wondering if anybody managed to call a SUB or a FUNC from an ISR in SX Basic. I tired declaring the SUB and FUNC in various places of the template, but with no success. I use the following template outline:
INTERRUPT 1000
ISR_start:
...code
ISR_Exit:
PROGRAM Start
subname SUB 2
Start:
Main:
GOTO Main
Now, subname SUB 2 declared that way allows subname to be called from anywhere except from the ISR, where the compiler complains with an "unknown command". If I declare it before INTERRUPT 1000, then I get"overwriting same program counter data." If I declare it after INTERRUPT 1000, then I in the dissasembly, I get a JMP right away at addess 0. Maybe I could declare the subname SUB 2 totally at some arbitrary point in the middle of the ISR and GOTO around it, but that looks messy.
What do I do?
Frank
Comments
Do it this way...
INTERRUPT 1000
GOTO Handle_Int
subname SUB 2
Handle_Int:
' Put interrupt code here
RETURNINT
PROGRAM Start
Start:
Main:
GOTO Main
subName:
' Subroutine code here
RETURN
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