AMAL VU problem?

volvo_0ne · 30 September 2018, 22:39

I use & like AMAL a lot, but up until today I have never used it's "VU" function.

The following snippet of code

Code:

1 AM$="Loop: Let RA=VU(1);Pause;Jump Loop"
2 Channel 1 To Screen Display 0
3 Amal 1,AM$
4 Amal On

(line numbers inserted for clarity)
Is supposed to read voice 1 and store it in register RA at each interrupt (for later retrieval with AMREG= from BASIC)

However I get the error

Instruction only valid in autotest at line 3

(Obviously the problem lies in the definition of AM$ in line 1, but the manual & helpfile says this should work?)
I think this may be a syntax thing, or maybe even an error in the help/manual texts.

I have tried removing the parenthesis in AM$ EG:

Code:

1 AM$="Loop: Let RA=VU 1;Pause;Jump Loop"
2 Channel 1 To Screen Display 0
3 Amal 1,AM$
4 Amal On

which seems to crash winuae quite spectacularly!

Any help much appreciated.

V1

volvo_0ne · 30 September 2018, 23:53

AHA!

It's a major error in the documentation!!!!!

The correct command is NOT "VU(voice)" it is simply "V(voice)"
so should read.....

Code:

1 AM$="Loop: Let RA=V(1);Pause;Jump Loop"
2 Channel 1 To Screen Display 0
3 Amal 1,AM$
4 Amal On

Panic over, but will hopefully be useful for someone later on.............

Predseda · 01 October 2018, 09:31

How did you discover it?

volvo_0ne · 02 October 2018, 19:55

Quote:

Originally Posted by Predseda

How did you discover it?

Trial & error (I guess I was lucky)

30 September 2018, 22:39	#1
volvo_0ne Registered User Join Date: Mar 2015 Location: Sheffield UK Posts: 360	AMAL VU problem? I use & like AMAL a lot, but up until today I have never used it's "VU" function. The following snippet of code Code: 1 AM$="Loop: Let RA=VU(1);Pause;Jump Loop" 2 Channel 1 To Screen Display 0 3 Amal 1,AM$ 4 Amal On (line numbers inserted for clarity) Is supposed to read voice 1 and store it in register RA at each interrupt (for later retrieval with AMREG= from BASIC) However I get the error Instruction only valid in autotest at line 3 (Obviously the problem lies in the definition of AM$ in line 1, but the manual & helpfile says this should work?) I think this may be a syntax thing, or maybe even an error in the help/manual texts. I have tried removing the parenthesis in AM$ EG: Code: 1 AM$="Loop: Let RA=VU 1;Pause;Jump Loop" 2 Channel 1 To Screen Display 0 3 Amal 1,AM$ 4 Amal On which seems to crash winuae quite spectacularly! Any help much appreciated. V1 Last edited by volvo_0ne; 30 September 2018 at 23:11.

30 September 2018, 23:53	#2
volvo_0ne Registered User Join Date: Mar 2015 Location: Sheffield UK Posts: 360	AHA! It's a major error in the documentation!!!!! The correct command is NOT "VU(voice)" it is simply "V(voice)" so should read..... Code: 1 AM$="Loop: Let RA=V(1);Pause;Jump Loop" 2 Channel 1 To Screen Display 0 3 Amal 1,AM$ 4 Amal On Panic over, but will hopefully be useful for someone later on.............

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01 October 2018, 09:31	#3
Predseda Puttymoon inhabitant Join Date: Mar 2007 Location: Tromaville Age: 46 Posts: 7,535	How did you discover it?

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