Hi

still wanting to have an example for every opcode, i have absolutely no idea
what these opcodes should accomplish and when they would come in handy:
stack, pop(_f), push(_f)
Who did use these opcodes and is able to provide me ( read: the manual) with
examples?

thanks
Menno

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Took me a little, but I found the original thread that discussed what
went into creating the stack opcodes and comments/criticism of them:

http://csound.1045644.n5.nabble.com/passing-a-string-to-a-UDO-td1099284.html



On Fri, Jul 8, 2011 at 7:29 AM, menno  wrote:
> Hi
>
> still wanting to have an example for every opcode, i have absolutely no idea
> what these opcodes should accomplish and when they would come in handy:
> stack, pop(_f), push(_f)
> Who did use these opcodes and is able to provide me ( read: the manual) with
> examples?
>
> thanks
> Menno
>
> --
> View this message in context: http://csound.1045644.n5.nabble.com/stack-tp4564431p4564431.html
> Sent from the Csound - Dev mailing list archive at Nabble.com.
>
> ------------------------------------------------------------------------------
> All of the data generated in your IT infrastructure is seriously valuable.
> Why? It contains a definitive record of application performance, security
> threats, fraudulent activity, and more. Splunk takes this data and makes
> sense of it. IT sense. And common sense.
> http://p.sf.net/sfu/splunk-d2d-c2
> _______________________________________________
> Csound-devel mailing list
> Csound-devel@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/csound-devel
>

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Why? It contains a definitive record of application performance, security 
threats, fraudulent activity, and more. Splunk takes this data and makes 
sense of it. IT sense. And common sense.
http://p.sf.net/sfu/splunk-d2d-c2
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thanks for pointing on this interesting discussion, steven.

i had a look at the stack manual page, and found it interesting that
push_f / pop_f offer a (perhaps dangerous) possibility to refer to an
f-signal between two different instruments.

i think there is a slightly incorrect sentence on this manual page:
"That is, after a 'push Sfoo, ibar', you must call something like 'pop
Sbar, ifoo', and not e.g. two separate 'pop' statements."  'pop Sbar,
ifoo' should be replaced by  'Sbar, ifoo pop'. perhaps you can change
this, menno, when you add an example (perhaps the one povided by istvan
varga in the thread)?

	joachim


Am 10.07.2011 02:02, schrieb Steven Yi:
> Took me a little, but I found the original thread that discussed what
> went into creating the stack opcodes and comments/criticism of them:
> 
> http://csound.1045644.n5.nabble.com/passing-a-string-to-a-UDO-td1099284.html
> 
> 
> 
> On Fri, Jul 8, 2011 at 7:29 AM, menno  wrote:
>> Hi
>>
>> still wanting to have an example for every opcode, i have absolutely no idea
>> what these opcodes should accomplish and when they would come in handy:
>> stack, pop(_f), push(_f)
>> Who did use these opcodes and is able to provide me ( read: the manual) with
>> examples?
>>
>> thanks
>> Menno
>>
>> --
>> View this message in context: http://csound.1045644.n5.nabble.com/stack-tp4564431p4564431.html
>> Sent from the Csound - Dev mailing list archive at Nabble.com.
>>
>> ------------------------------------------------------------------------------
>> All of the data generated in your IT infrastructure is seriously valuable.
>> Why? It contains a definitive record of application performance, security
>> threats, fraudulent activity, and more. Splunk takes this data and makes
>> sense of it. IT sense. And common sense.
>> http://p.sf.net/sfu/splunk-d2d-c2
>> _______________________________________________
>> Csound-devel mailing list
>> Csound-devel@lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/csound-devel
>>
> 
> ------------------------------------------------------------------------------
> All of the data generated in your IT infrastructure is seriously valuable.
> Why? It contains a definitive record of application performance, security 
> threats, fraudulent activity, and more. Splunk takes this data and makes 
> sense of it. IT sense. And common sense.
> http://p.sf.net/sfu/splunk-d2d-c2
> _______________________________________________
> Csound-devel mailing list
> Csound-devel@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/csound-devel
> 

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judging the working example given in the thread pointed out by Steven, i
think you are right, Joachim, in that "'pop Sbar, ifoo' should be replaced
by  'Sbar, ifoo pop'.". I will change the manual accordingly. The manual
pages of pop and push, that include the same remark are already correct.

and thanks Steven, for pointing me to this thread - and the example!
 
There is a small issue with the example because i can run it only with the
old parser enabled:

 

; Select audio/midi flags here according to platform
-odac --old-parser  ;;;realtime audio out
;-iadc    ;;;uncomment -iadc if realtime audio input is needed too
; For Non-realtime ouput leave only the line below:
; -o stack.wav -W ;;; for file output any platform
 
 

sr = 44100 
ksmps = 32 
0dbfs  = 1 
nchnls = 2

        stack 100000 

        instr 1 

a1	oscils 0.7, 220, 0 
k1	line 0, p3, 1 
        push "blah", 123.45, a1, k1 
        push rnd(k(1)) 

k_rnd	pop 
S01, i01, a01, k01	pop 
        printf_i "S01 = '%s', i01 = %g\n", 1, S01, i01 
ktrig	metro 5.0 
        printf "k01 = %.3f, k_rnd = %.3f\n", ktrig, k01, k_rnd 
        outs a01, a01 

        endin 

 
 
i 1 0 5 
e 
 
 


this is the output of Csound when the new parser is enabled:

time resolution is 1000.000 ns
PortAudio real-time audio module for Csound
virtual_keyboard real time MIDI plugin for Csound
PortMIDI real time MIDI plugin for Csound
0dBFS level = 32768.0
Csound version 5.13 beta (double samples) Jun 16 2011
libsndfile-1.0.21
UnifiedCSD:  /media/ManualUSB/improved examples/niks/stack.csd
STARTING FILE
Creating options
Creating orchestra
Creating score
orchname:  /tmp/csound-BrzlLI.orc
scorename: /tmp/csound-s4n4B7.sco
Loading command-line libraries:
  /usr/local/lib/libloris.so
graph init 
rtmidi: PortMIDI module enabled
RAWWAVE_PATH: /usr/local/share/csound/rawwaves/
rtaudio: JACK module enabled
********************
* USING NEW PARSER *
********************
END OF INPUT
Parsing successful!
SETTING 0DBFS: 1.000000
Elapsed time at end of orchestra compile: real: 0.005s, CPU: 0.000s
sorting score ...
	... done
Elapsed time at end of score sort: real: 0.005s, CPU: 0.000s
Csound version 5.13 beta (double samples) Jun 16 2011
sample rate overrides: esr = 48000.0000, ekr = 1500.0000, ksmps = 32
0dBFS level = 1.0
orch now loaded
audio buffered in 256 sample-frame blocks
reading 1024-byte blks of shorts from adc (RAW)
Jack: JackClient::SetupDriverSync driver sem in flush mode
Jack: JackPosixSemaphore::Connect jack_sem.1000_default_csound5
Jack: Already connected name = csound5
Jack: Clock source : system clock via clock_gettime
Jack: JackLibClient::Open name = csound5 refnum = 7
Jack: JackClient::PortRegister ref = 7 name = csound5:input1 type = 32 bit
float mono audio port_index = 37
Jack: JackClient::PortRegister ref = 7 name = csound5:input2 type = 32 bit
float mono audio port_index = 38
Jack: JackClient::PortRegister ref = 7 name = csound5:output1 type = 32 bit
float mono audio port_index = 39
Jack: JackClient::PortRegister ref = 7 name = csound5:output2 type = 32 bit
float mono audio port_index = 40
Jack: JackClient::Activate
Jack: JackClient::StartThread : period = 2666 computation = 0 constraint =
2666
Jack: Create non RT thread
Jack: ThreadHandler: start
Jack: JackClient::kBufferSizeCallback buffer_size = 128
Jack: JackClient::kActivateClient name = csound5 ref = 7 
writing 1024-byte blks of shorts to dac
SECTION 1:
new alloc for instr 1:
INIT ERROR in instr 1: pop: argument number or type mismatch
S01	i01	a01	k01	pop	
Early return from csoundPerform().

greetings,
Menno


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Why? It contains a definitive record of application performance, security 
threats, fraudulent activity, and more. Splunk takes this data and makes 
sense of it. IT sense. And common sense.
http://p.sf.net/sfu/splunk-d2d-c2
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