readscratch

readscratch — returns a value stored in the instance of an instrument.

Description

The readscratch opcode returns one of four scalar values stored in the instance of an instrument.

Syntax

ival readscratch[index]

Initialisation

ival -- variable for result.

index -- which value to read, defaulting to zero.

Examples

Here is an example of the readscratch opcode. It uses the file readscratch.csd.

Example 780. Example of the readscratch opcode.

See the sections Real-time Audio and Command Line Flags for more information on using command line flags.

<CsoundSynthesizer>
<CsOptions>
; Select audio/midi flags here according to platform
-n
</CsOptions>
<CsInstruments>

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

instr 1

ilast readscratch
      writescratch p2
ilen  readscratch 1
      writescratch p3, 1
      printf_i "last run at %f for %f\n", ilen, ilast, ilen
endin

</CsInstruments>
<CsScore>
i 1 0 1
i 1 2 3
i 1 6 10
e
</CsScore>
</CsoundSynthesizer>


See Also

writescratch,

Credits

Author: John ffitch
March 2013

New in Csound version 6.00