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C Copyright (c) 2003-2010 University of Florida
C
C This program is free software; you can redistribute it and/or modify
C it under the terms of the GNU General Public License as published by
C the Free Software Foundation; either version 2 of the License, or
C (at your option) any later version.
C This program is distributed in the hope that it will be useful,
C but WITHOUT ANY WARRANTY; without even the implied warranty of
C MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
C GNU General Public License for more details.
C The GNU General Public License is included in this distribution
C in the file COPYRIGHT.
subroutine handle_sss_op(op, array_table, narray_table,
* scalar_table, nscalar_table)
c-------------------------------------------------------------------------
c Performs all calculations of the form
c scalar op scalar --> scalar.
c-------------------------------------------------------------------------
implicit none
include 'interpreter.h'
integer op(loptable_entry)
integer narray_table, nscalar_table
integer array_table(larray_table_entry,narray_table)
double precision scalar_table(nscalar_table)
integer op1, op2, result
integer iop1, iop2, iresult
integer i, opcode, ierr
double precision val1, val2
op1 = op(c_op1_array)
op2 = op(c_op2_array)
result = op(c_result_array)
opcode = op(c_opcode)
c--------------------------------------------------------------------------
c Make sure all operands are scalars.
c--------------------------------------------------------------------------
ierr = 0
if (op2 .eq. 0) then
if (opcode .ne. assignment_op .or.
* array_table(c_array_type,op1) .ne. scalar_value .or.
* array_table(c_array_type,result) .ne. scalar_value)
* ierr = 1
else
if (array_table(c_array_type,op1) .ne. scalar_value .or.
* array_table(c_array_type,op2) .ne. scalar_value .or.
* array_table(c_array_type,result) .ne. scalar_value)
* ierr = 1
endif
if (ierr .eq. 1) then
print *,'Error in handle_sss_op: Invalid operation.'
print *,'op = ',(op(i),i=1,loptable_entry)
print *,'op1 type = ',array_table(c_array_type,op1)
if (op2 .ne. 0) print *,'op2 type = ',
* array_table(c_array_type,op2)
print *,'result type = ',array_table(c_array_type,result)
call abort_job()
endif
c--------------------------------------------------------------------------
c Get operand addresses.
c--------------------------------------------------------------------------
iop1 = array_table(c_scalar_index,op1)
if (op2 .ne. 0) iop2 = array_table(c_scalar_index,op2)
iresult = array_table(c_scalar_index,result)
c--------------------------------------------------------------------------
c Perform the arithmetic.
c--------------------------------------------------------------------------
val1 = scalar_table(iop1)
if (op2 .ne. 0) val2 = scalar_table(iop2)
if (opcode .eq. contraction_op) then
scalar_table(iresult) = val1 * val2
else if (opcode .eq. sum_op) then
scalar_table(iresult) = val1 + val2
else if (opcode .eq. subtract_op) then
scalar_table(iresult) = val1 - val2
else if (opcode .eq. assignment_op) then
scalar_table(iresult) = val1
else if (opcode .eq. divide_op) then
if (val2 .eq. 0.0) then
print *,'Error: Scalar divide by zero'
print *,'Operation: ',(op(i),i=1,loptable_entry)
print *,'Values = ',val1, val2
call abort_job()
endif
scalar_table(iresult) = val1 / val2
else
print *,'Invalid scalar operation: opcode = ',opcode
call abort_job()
endif
return
end
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