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// Xcos
//
// Copyright (C) INRIA - METALAU Project <scicos@inria.fr>
// Copyright 2011 - Bernard DUJARDIN <bernard.dujardin@contrib.scilab.org>
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
//
// See the file ../license.txt
//
function [x,y,typ]=SHIFT(job,arg1,arg2)
x=[];
y=[];
typ=[];
select job
case "set" then
x=arg1;
graphics=arg1.graphics
model=arg1.model
exprs=graphics.exprs
while %t do
[ok,Datatype,nb,np,exprs]=scicos_getvalue([msprintf(gettext("Set %s block parameters"), "SHIFT");" "; gettext("Shift/Rotates bits")], ..
[msprintf(gettext("Data Type %s"), "(3:int32, 4:int16, 5:int8, ...)"); gettext("Number of Bits to Shift Left (Negative number to shift right)"); ..
gettext("Shift Type (0:Arithmetic, 1:Circular)")], ..
list("vec",1,"vec",1,"vec",1), exprs);
if ~ok then
break,
end
if (np ~= 0 & np ~= 1) then
block_parameter_error(msprintf( gettext("Wrong value for ''%s'' parameter: %d."), gettext("Shift Type"), np), ..
msprintf(gettext("Must be in the interval %s."), "[0, 1]"));
ok=%f;
end
it=Datatype;
ot=Datatype;
// model.sim=list('shift_ia',4)
if (Datatype==3 | Datatype==6) then
if nb>0 then
select np
case 0 then
model.sim=list("shift_32_LA",4)
case 1 then
model.sim=list("shift_32_LC",4)
end
elseif nb<0
select np
case 0 then
select Datatype
case 3 then
model.sim=list("shift_32_RA",4)
case 6 then
model.sim=list("shift_u32_RA",4)
end
case 1 then
model.sim=list("shift_32_RC",4)
end
end
elseif (Datatype==4 | Datatype==7) then
if nb>0 then
select np
case 0 then
model.sim=list("shift_16_LA",4)
case 1 then
model.sim=list("shift_16_LC",4)
end
elseif nb<0
select np
case 0 then
select Datatype
case 4 then
model.sim=list("shift_16_RA",4)
case 7 then
model.sim=list("shift_u16_RA",4)
end
case 1 then
model.sim=list("shift_16_RC",4)
end
end
elseif (Datatype==5 | Datatype==8) then
if nb>0 then
select np
case 0 then
model.sim=list("shift_8_LA",4)
case 1 then
model.sim=list("shift_8_LC",4)
end
elseif nb<0
select np
case 0 then
select Datatype
case 5 then
model.sim=list("shift_8_RA",4)
case 8 then
model.sim=list("shift_u8_RA",4)
end
case 1 then
model.sim=list("shift_8_RC",4)
end
end
else
block_parameter_error(msprintf( gettext( "Wrong value for ''%s'' parameter: %d."), gettext("Data Type"), Datatype), ..
msprintf(gettext( "Must be in the interval %s."), "[3, 8]" ));
ok=%f;
end
if ok then
[model,graphics,ok]=set_io(model,graphics,...
list([-1,-2],it),...
list([-1,-2],ot),[],[])
end
if ok then
model.ipar=nb
graphics.exprs=exprs
x.graphics=graphics;
x.model=model
break
end
end
case "define" then
sgn=[0;0]
OPER=0;
model=scicos_model()
model.sim=list("shift_32_LA",4)
model.in=-1
model.out=-1
model.in2=-2
model.out2=-2
model.intyp=3
model.outtyp=3
model.rpar=[]
model.ipar=sgn
model.blocktype="c"
model.dep_ut=[%t %f]
exprs=[sci2exp(3);sci2exp(0);sci2exp(0)]
gr_i=[]
x=standard_define([3 2],model, exprs,gr_i)
end
endfunction
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