factor/native/arithmetic.c

187 lines
2.9 KiB
C

#include "factor.h"
CELL tag_integer(FIXNUM x)
{
if(x < FIXNUM_MIN || x > FIXNUM_MAX)
return tag_object(s48_long_to_bignum(x));
else
return tag_fixnum(x);
}
CELL tag_cell(CELL x)
{
if(x > FIXNUM_MAX)
return tag_object(s48_ulong_to_bignum(x));
else
return tag_fixnum(x);
}
CELL to_cell(CELL x)
{
switch(type_of(x))
{
case FIXNUM_TYPE:
return untag_fixnum_fast(x);
case BIGNUM_TYPE:
/* really need bignum_to_ulong! */
return s48_bignum_to_long(untag_bignum(x));
default:
type_error(INTEGER_TYPE,x);
}
}
CELL upgraded_arithmetic_type(CELL type1, CELL type2)
{
switch(type1)
{
case FIXNUM_TYPE:
return type2;
case BIGNUM_TYPE:
switch(type2)
{
case FIXNUM_TYPE:
return type1;
default:
return type2;
}
case RATIO_TYPE:
switch(type2)
{
case FIXNUM_TYPE:
case BIGNUM_TYPE:
return type1;
default:
return type2;
}
case FLOAT_TYPE:
switch(type2)
{
case FIXNUM_TYPE:
case BIGNUM_TYPE:
case RATIO_TYPE:
return type1;
default:
return type2;
}
case COMPLEX_TYPE:
switch(type2)
{
case FIXNUM_TYPE:
case BIGNUM_TYPE:
case RATIO_TYPE:
case FLOAT_TYPE:
return type1;
default:
return type2;
}
default:
return type1;
}
}
bool realp(CELL tagged)
{
switch(type_of(tagged))
{
case FIXNUM_TYPE:
case BIGNUM_TYPE:
case RATIO_TYPE:
case FLOAT_TYPE:
return true;
break;
default:
return false;
break;
}
}
void primitive_numberp(void)
{
CELL tagged = dpeek();
drepl(tag_boolean(realp(tagged) || type_of(tagged) == COMPLEX_TYPE));
}
bool zerop(CELL tagged)
{
switch(type_of(tagged))
{
case FIXNUM_TYPE:
return tagged == 0;
case BIGNUM_TYPE:
return BIGNUM_ZERO_P((ARRAY*)UNTAG(tagged));
case FLOAT_TYPE:
return ((FLOAT*)UNTAG(tagged))->n == 0.0;
case RATIO_TYPE:
return false;
default:
critical_error("Bad parameter to zerop",tagged);
return false; /* Can't happen */
}
}
/* EQUALITY */
CELL number_eq_anytype(CELL x, CELL y)
{
return F;
}
BINARY_OP(number_eq)
BINARY_OP_NUMBER_ONLY(add)
BINARY_OP(add)
BINARY_OP_NUMBER_ONLY(subtract)
BINARY_OP(subtract)
BINARY_OP_NUMBER_ONLY(multiply)
BINARY_OP(multiply)
BINARY_OP_NUMBER_ONLY(divide)
BINARY_OP(divide)
BINARY_OP_INTEGER_ONLY(divint)
BINARY_OP_NUMBER_ONLY(divint)
BINARY_OP(divint)
BINARY_OP_NUMBER_ONLY(divfloat)
BINARY_OP(divfloat)
BINARY_OP_INTEGER_ONLY(divmod)
BINARY_OP_NUMBER_ONLY(divmod)
BINARY_OP(divmod)
BINARY_OP_INTEGER_ONLY(mod)
BINARY_OP_NUMBER_ONLY(mod)
BINARY_OP(mod)
BINARY_OP_INTEGER_ONLY(and)
BINARY_OP_NUMBER_ONLY(and)
BINARY_OP(and)
BINARY_OP_INTEGER_ONLY(or)
BINARY_OP_NUMBER_ONLY(or)
BINARY_OP(or)
BINARY_OP_INTEGER_ONLY(xor)
BINARY_OP_NUMBER_ONLY(xor)
BINARY_OP(xor)
BINARY_OP_FIXNUM(shift)
BINARY_OP_NUMBER_ONLY(less)
BINARY_OP(less)
BINARY_OP_NUMBER_ONLY(lesseq)
BINARY_OP(lesseq)
BINARY_OP_NUMBER_ONLY(greater)
BINARY_OP(greater)
BINARY_OP_NUMBER_ONLY(greatereq)
BINARY_OP(greatereq)
UNARY_OP_INTEGER_ONLY(not)
UNARY_OP_NUMBER_ONLY(not)
UNARY_OP(not)