tab
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## tab

tab — Fast table opcode.

## Description

Fast table opcode. Faster than table because it does not allow wrap-around and limit. Has been implemented in order to provide fast access to arrays.

## Syntax

    kr tab kndx, ifn[, ixmode]

    ar tab xndx, ifn[, ixmode]

## Initialization

ifn -- table number

ixmode -- defaults to zero. If zero xndx range matches the length of the table; if non zero xndx has a 0 to 1 range.

indx -- table index

## Performance

andx, kndx -- table index.

tab and tabw opcodes are similar to table but are faster, and use rounding of the index.

## Examples

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

Example 1064. Example of the tab 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
    -odac    ;;;realtime audio out
    ;-iadc    ;;;uncomment -iadc if realtime audio input is needed too
    ; For Non-realtime ouput leave only the line below:
    ; -o tab.wav -W ;;; for file output any platform
    </CsOptions>
    <CsInstruments>

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

    gifn1 ftgen 1, 0, 0, 1, "flute.aiff", 0, 0, 0	;deferred-size table

    instr 1

    atab  init 0
    isize tableng 1					;length of table?
    print isize
    andx  phasor 1 / (isize / sr)
    asig  tab andx, 1, 1				;has a 0 to 1 range
          outs asig, asig

    endin
    </CsInstruments>
    <CsScore>

    i 1 0 2.3
    e
    </CsScore>
    </CsoundSynthesizer>

## See Also

tab_i, tabw, tabw_i

## Credits

Written by Gabriel Maldonado.

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