10. Intrinsic functions available to libjit users
Intrinsics are functions that are provided to ease code generation
on platforms that may not be able to perform all operations natively.
For example, on a CPU without a floating-point unit, the back end code
generator will output a call to an intrinsic function when a floating-point
operation is performed. CPU's with a floating-point unit would use
a native instruction instead.
Some platforms may already have appropriate intrinsics (e.g. the ARM
floating-point emulation routines). The back end code generator may choose
to use either the system-supplied intrinsics or the ones supplied by
this library. We supply all of them in our library just in case a
particular platform lacks an appropriate intrinsic.
Some intrinsics have no equivalent in existing system libraries;
particularly those that deal with overflow checking.
Functions that perform overflow checking or which divide integer operands
return a built-in exception code to indicate the type of exception
to be thrown (the caller is responsible for throwing the actual
exception). See section Handling exceptions, for a list of built-in exception codes.
The following functions are defined in <jit/jit-intrinsic.h>:
- Function: jit_int jit_int_add (jit_int value1, jit_int value2)
- Function: jit_int jit_int_sub (jit_int value1, jit_int value2)
- Function: jit_int jit_int_mul (jit_int value1, jit_int value2)
- Function: jit_int jit_int_neg (jit_int value1)
- Function: jit_int jit_int_and (jit_int value1, jit_int value2)
- Function: jit_int jit_int_or (jit_int value1, jit_int value2)
- Function: jit_int jit_int_xor (jit_int value1, jit_int value2)
- Function: jit_int jit_int_not (jit_int value1)
- Function: jit_int jit_int_not (jit_int value1)
- Function: jit_int jit_int_shl (jit_int value1, jit_uint value2)
- Function: jit_int jit_int_shr (jit_int value1, jit_uint value2)
Perform an arithmetic operation on signed 32-bit integers.
- Function: jit_int jit_int_add_ovf (jit_int *result, jit_int value1, jit_int value2)
- Function: jit_int jit_int_sub_ovf (jit_int *result, jit_int value1, jit_int value2)
- Function: jit_int jit_int_mul_ovf (jit_int *result, jit_int value1, jit_int value2)
Perform an arithmetic operation on two signed 32-bit integers,
with overflow checking. Returns JIT_RESULT_OK
or JIT_RESULT_OVERFLOW.
- Function: jit_int jit_int_div_ovf (jit_int *result, jit_int value1, jit_int value2)
- Function: jit_int jit_int_rem_ovf (jit_int *result, jit_int value1, jit_int value2)
Perform a division or remainder operation on two signed 32-bit integers.
Returns JIT_RESULT_OK, JIT_RESULT_DIVISION_BY_ZERO,
or JIT_RESULT_ARITHMETIC.
- Function: jit_int jit_int_eq (jit_int value1, jit_int value2)
- Function: jit_int jit_int_ne (jit_int value1, jit_int value2)
- Function: jit_int jit_int_lt (jit_int value1, jit_int value2)
- Function: jit_int jit_int_le (jit_int value1, jit_int value2)
- Function: jit_int jit_int_gt (jit_int value1, jit_int value2)
- Function: jit_int jit_int_ge (jit_int value1, jit_int value2)
Compare two signed 32-bit integers, returning 0 or 1 based
on their relationship.
- Function: jit_int jit_int_cmp (jit_int value1, jit_int value2)
Compare two signed 32-bit integers and return -1, 0, or 1 based
on their relationship.
- Function: jit_int jit_int_abs (jit_int value1)
- Function: jit_int jit_int_min (jit_int value1, jit_int value2)
- Function: jit_int jit_int_max (jit_int value1, jit_int value2)
- Function: jit_int jit_int_sign (jit_int value1)
Calculate the absolute value, minimum, maximum, or sign for
signed 32-bit integer values.
- Function: jit_uint jit_uint_add (jit_uint value1, jit_uint value2)
- Function: jit_uint jit_uint_sub (jit_uint value1, jit_uint value2)
- Function: jit_uint jit_uint_mul (jit_uint value1, jit_uint value2)
- Function: jit_uint jit_uint_neg (jit_uint value1)
- Function: jit_uint jit_uint_and (jit_uint value1, jit_uint value2)
- Function: jit_uint jit_uint_or (jit_uint value1, jit_uint value2)
- Function: jit_uint jit_uint_xor (jit_uint value1, jit_uint value2)
- Function: jit_uint jit_uint_not (jit_uint value1)
- Function: jit_uint jit_uint_not (jit_uint value1)
- Function: jit_uint jit_uint_shl (jit_uint value1, jit_uint value2)
- Function: jit_uint jit_uint_shr (jit_uint value1, jit_uint value2)
Perform an arithmetic operation on unsigned 32-bit integers.
- Function: jit_int jit_uint_add_ovf (jit_uint *result, jit_uint value1, jit_uint value2)
- Function: jit_int jit_uint_sub_ovf (jit_uint *result, jit_uint value1, jit_uint value2)
- Function: jit_int jit_uint_mul_ovf (jit_uint *result, jit_uint value1, jit_uint value2)
Perform an arithmetic operation on two unsigned 32-bit integers,
with overflow checking. Returns JIT_RESULT_OK
or JIT_RESULT_OVERFLOW.
- Function: jit_int jit_uint_div_ovf (jit_uint *result, jit_uint value1, jit_uint value2)
- Function: jit_int jit_uint_rem_ovf (jit_uint *result, jit_uint value1, jit_uint value2)
Perform a division or remainder operation on two unsigned 32-bit integers.
Returns JIT_RESULT_OK or JIT_RESULT_DIVISION_BY_ZERO
(JIT_RESULT_ARITHMETIC is not possible with unsigned integers).
- Function: jit_int jit_uint_eq (jit_uint value1, jit_uint value2)
- Function: jit_int jit_uint_ne (jit_uint value1, jit_uint value2)
- Function: jit_int jit_uint_lt (jit_uint value1, jit_uint value2)
- Function: jit_int jit_uint_le (jit_uint value1, jit_uint value2)
- Function: jit_int jit_uint_gt (jit_uint value1, jit_uint value2)
- Function: jit_int jit_uint_ge (jit_uint value1, jit_uint value2)
Compare two unsigned 32-bit integers, returning 0 or 1 based
on their relationship.
- Function: jit_int jit_uint_cmp (jit_uint value1, jit_uint value2)
Compare two unsigned 32-bit integers and return -1, 0, or 1 based
on their relationship.
- Function: jit_uint jit_uint_min (jit_uint value1, jit_uint value2)
- Function: jit_uint jit_uint_max (jit_uint value1, jit_uint value2)
Calculate the minimum or maximum for unsigned 32-bit integer values.
- Function: jit_long jit_long_add (jit_long value1, jit_long value2)
- Function: jit_long jit_long_sub (jit_long value1, jit_long value2)
- Function: jit_long jit_long_mul (jit_long value1, jit_long value2)
- Function: jit_long jit_long_neg (jit_long value1)
- Function: jit_long jit_long_and (jit_long value1, jit_long value2)
- Function: jit_long jit_long_or (jit_long value1, jit_long value2)
- Function: jit_long jit_long_xor (jit_long value1, jit_long value2)
- Function: jit_long jit_long_not (jit_long value1)
- Function: jit_long jit_long_not (jit_long value1)
- Function: jit_long jit_long_shl (jit_long value1, jit_uint value2)
- Function: jit_long jit_long_shr (jit_long value1, jit_uint value2)
Perform an arithmetic operation on signed 64-bit integers.
- Function: jit_int jit_long_add_ovf (jit_long *result, jit_long value1, jit_long value2)
- Function: jit_int jit_long_sub_ovf (jit_long *result, jit_long value1, jit_long value2)
- Function: jit_int jit_long_mul_ovf (jit_long *result, jit_long value1, jit_long value2)
Perform an arithmetic operation on two signed 64-bit integers,
with overflow checking. Returns JIT_RESULT_OK
or JIT_RESULT_OVERFLOW.
- Function: jit_int jit_long_div_ovf (jit_long *result, jit_long value1, jit_long value2)
- Function: jit_int jit_long_rem_ovf (jit_long *result, jit_long value1, jit_long value2)
Perform a division or remainder operation on two signed 64-bit integers.
Returns JIT_RESULT_OK, JIT_RESULT_DIVISION_BY_ZERO,
or JIT_RESULT_ARITHMETIC.
- Function: jit_int jit_long_eq (jit_long value1, jit_long value2)
- Function: jit_int jit_long_ne (jit_long value1, jit_long value2)
- Function: jit_int jit_long_lt (jit_long value1, jit_long value2)
- Function: jit_int jit_long_le (jit_long value1, jit_long value2)
- Function: jit_int jit_long_gt (jit_long value1, jit_long value2)
- Function: jit_int jit_long_ge (jit_long value1, jit_long value2)
Compare two signed 64-bit integers, returning 0 or 1 based
on their relationship.
- Function: jit_int jit_long_cmp (jit_long value1, jit_long value2)
Compare two signed 64-bit integers and return -1, 0, or 1 based
on their relationship.
- Function: jit_long jit_long_abs (jit_long value1)
- Function: jit_long jit_long_min (jit_long value1, jit_long value2)
- Function: jit_long jit_long_max (jit_long value1, jit_long value2)
- Function: jit_int jit_long_sign (jit_long value1)
Calculate the absolute value, minimum, maximum, or sign for
signed 64-bit integer values.
- Function: jit_ulong jit_ulong_add (jit_ulong value1, jit_ulong value2)
- Function: jit_ulong jit_ulong_sub (jit_ulong value1, jit_ulong value2)
- Function: jit_ulong jit_ulong_mul (jit_ulong value1, jit_ulong value2)
- Function: jit_ulong jit_ulong_neg (jit_ulong value1)
- Function: jit_ulong jit_ulong_and (jit_ulong value1, jit_ulong value2)
- Function: jit_ulong jit_ulong_or (jit_ulong value1, jit_ulong value2)
- Function: jit_ulong jit_ulong_xor (jit_ulong value1, jit_ulong value2)
- Function: jit_ulong jit_ulong_not (jit_ulong value1)
- Function: jit_ulong jit_ulong_not (jit_ulong value1)
- Function: jit_ulong jit_ulong_shl (jit_ulong value1, jit_uint value2)
- Function: jit_ulong jit_ulong_shr (jit_ulong value1, jit_uint value2)
Perform an arithmetic operation on unsigned 64-bit integers.
- Function: jit_int jit_ulong_add_ovf (jit_ulong *result, jit_ulong value1, jit_ulong value2)
- Function: jit_int jit_ulong_sub_ovf (jit_ulong *result, jit_ulong value1, jit_ulong value2)
- Function: jit_int jit_ulong_mul_ovf (jit_ulong *result, jit_ulong value1, jit_ulong value2)
Perform an arithmetic operation on two unsigned 64-bit integers,
with overflow checking. Returns JIT_RESULT_OK
or JIT_RESULT_OVERFLOW.
- Function: jit_int jit_ulong_div_ovf (jit_ulong *result, jit_ulong value1, jit_ulong value2)
- Function: jit_int jit_ulong_rem_ovf (jit_ulong *result, jit_ulong value1, jit_ulong value2)
Perform a division or remainder operation on two unsigned 64-bit integers.
Returns JIT_RESULT_OK or JIT_RESULT_DIVISION_BY_ZERO
(JIT_RESULT_ARITHMETIC is not possible with unsigned integers).
- Function: jit_int jit_ulong_eq (jit_ulong value1, jit_ulong value2)
- Function: jit_int jit_ulong_ne (jit_ulong value1, jit_ulong value2)
- Function: jit_int jit_ulong_lt (jit_ulong value1, jit_ulong value2)
- Function: jit_int jit_ulong_le (jit_ulong value1, jit_ulong value2)
- Function: jit_int jit_ulong_gt (jit_ulong value1, jit_ulong value2)
- Function: jit_int jit_ulong_ge (jit_ulong value1, jit_ulong value2)
Compare two unsigned 64-bit integers, returning 0 or 1 based
on their relationship.
- Function: jit_int jit_ulong_cmp (jit_ulong value1, jit_ulong value2)
Compare two unsigned 64-bit integers and return -1, 0, or 1 based
on their relationship.
- Function: jit_ulong jit_ulong_min (jit_ulong value1, jit_ulong value2)
- Function: jit_ulong jit_ulong_max (jit_ulong value1, jit_ulong value2)
Calculate the minimum or maximum for unsigned 64-bit integer values.
- Function: jit_float32 jit_float32_add (jit_float32 value1, jit_float32 value2)
- Function: jit_float32 jit_float32_sub (jit_float32 value1, jit_float32 value2)
- Function: jit_float32 jit_float32_mul (jit_float32 value1, jit_float32 value2)
- Function: jit_float32 jit_float32_div (jit_float32 value1, jit_float32 value2)
- Function: jit_float32 jit_float32_rem (jit_float32 value1, jit_float32 value2)
- Function: jit_float32 jit_float32_ieee_rem (jit_float32 value1, jit_float32 value2)
- Function: jit_float32 jit_float32_neg (jit_float32 value1)
Perform an arithmetic operation on 32-bit floating-point values.
- Function: jit_int jit_float32_eq (jit_float32 value1, jit_float32 value2)
- Function: jit_int jit_float32_ne (jit_float32 value1, jit_float32 value2)
- Function: jit_int jit_float32_lt (jit_float32 value1, jit_float32 value2)
- Function: jit_int jit_float32_le (jit_float32 value1, jit_float32 value2)
- Function: jit_int jit_float32_gt (jit_float32 value1, jit_float32 value2)
- Function: jit_int jit_float32_ge (jit_float32 value1, jit_float32 value2)
Compare two 32-bit floating-point values, returning 0 or 1 based
on their relationship.
- Function: jit_int jit_float32_cmpl (jit_float32 value1, jit_float32 value2)
Compare two 32-bit floating-point values and return -1, 0, or 1 based
on their relationship. If either value is "not a number",
then -1 is returned.
- Function: jit_int jit_float32_cmpg (jit_float32 value1, jit_float32 value2)
Compare two 32-bit floating-point values and return -1, 0, or 1 based
on their relationship. If either value is "not a number",
then 1 is returned.
- Function: jit_float32 jit_float32_abs (jit_float32 value1)
- Function: jit_float32 jit_float32_min (jit_float32 value1, jit_float32 value2)
- Function: jit_float32 jit_float32_max (jit_float32 value1, jit_float32 value2)
- Function: jit_int jit_float32_sign (jit_float32 value1)
Calculate the absolute value, minimum, maximum, or sign for
32-bit floating point values.
- Function: jit_float32 jit_float32_acos (jit_float32 value1)
- Function: jit_float32 jit_float32_asin (jit_float32 value1)
- Function: jit_float32 jit_float32_atan (jit_float32 value1)
- Function: jit_float32 jit_float32_atan2 (jit_float32 value1, jit_float32 value2)
- Function: jit_float32 jit_float32_ceil (jit_float32 value1)
- Function: jit_float32 jit_float32_cos (jit_float32 value1)
- Function: jit_float32 jit_float32_cosh (jit_float32 value1)
- Function: jit_float32 jit_float32_exp (jit_float32 value1)
- Function: jit_float32 jit_float32_floor (jit_float32 value1)
- Function: jit_float32 jit_float32_log (jit_float32 value1)
- Function: jit_float32 jit_float32_log10 (jit_float32 value1)
- Function: jit_float32 jit_float32_pow (jit_float32 value1, jit_float32 value2)
- Function: jit_float32 jit_float32_sin (jit_float32 value1)
- Function: jit_float32 jit_float32_sinh (jit_float32 value1)
- Function: jit_float32 jit_float32_sqrt (jit_float32 value1)
- Function: jit_float32 jit_float32_tan (jit_float32 value1)
- Function: jit_float32 jit_float32_tanh (jit_float32 value1)
Apply a mathematical function to one or two 32-bit floating-point values.
- Function: jit_float32 jit_float32_rint (jit_float32 value1)
Round value1 to the nearest integer. Half-way cases
are rounded to an even number.
- Function: jit_float32 jit_float32_round (jit_float32 value1)
Round value1 to the nearest integer. Half-way cases
are rounded away from zero.
- Function: jit_int jit_float32_is_finite (jit_float32 value)
Determine if a 32-bit floating point value is finite, returning
non-zero if it is, or zero if it is not. If the value is
"not a number", this function returns zero.
- Function: jit_int jit_float32_is_nan (jit_float32 value)
Determine if a 32-bit floating point value is "not a number", returning
non-zero if it is, or zero if it is not.
- Function: jit_int jit_float32_is_inf (jit_float32 value)
Determine if a 32-bit floating point value is infinite or not.
Returns -1 for negative infinity, 1 for positive infinity,
and 0 for everything else.
Note: this function is preferable to the system isinf intrinsic
because some systems have a broken isinf function that returns
1 for both positive and negative infinity.
- Function: jit_float64 jit_float64_add (jit_float64 value1, jit_float64 value2)
- Function: jit_float64 jit_float64_sub (jit_float64 value1, jit_float64 value2)
- Function: jit_float64 jit_float64_mul (jit_float64 value1, jit_float64 value2)
- Function: jit_float64 jit_float64_div (jit_float64 value1, jit_float64 value2)
- Function: jit_float64 jit_float64_rem (jit_float64 value1, jit_float64 value2)
- Function: jit_float64 jit_float64_ieee_rem (jit_float64 value1, jit_float64 value2)
- Function: jit_float64 jit_float64_neg (jit_float64 value1)
Perform an arithmetic operation on 64-bit floating-point values.
- Function: jit_int jit_float64_eq (jit_float64 value1, jit_float64 value2)
- Function: jit_int jit_float64_ne (jit_float64 value1, jit_float64 value2)
- Function: jit_int jit_float64_lt (jit_float64 value1, jit_float64 value2)
- Function: jit_int jit_float64_le (jit_float64 value1, jit_float64 value2)
- Function: jit_int jit_float64_gt (jit_float64 value1, jit_float64 value2)
- Function: jit_int jit_float64_ge (jit_float64 value1, jit_float64 value2)
Compare two 64-bit floating-point values, returning 0 or 1 based
on their relationship.
- Function: jit_int jit_float64_cmpl (jit_float64 value1, jit_float64 value2)
Compare two 64-bit floating-point values and return -1, 0, or 1 based
on their relationship. If either value is "not a number",
then -1 is returned.
- Function: jit_int jit_float64_cmpg (jit_float64 value1, jit_float64 value2)
Compare two 64-bit floating-point values and return -1, 0, or 1 based
on their relationship. If either value is "not a number",
then 1 is returned.
- Function: jit_float64 jit_float64_abs (jit_float64 value1)
- Function: jit_float64 jit_float64_min (jit_float64 value1, jit_float64 value2)
- Function: jit_float64 jit_float64_max (jit_float64 value1, jit_float64 value2)
- Function: jit_int jit_float64_sign (jit_float64 value1)
Calculate the absolute value, minimum, maximum, or sign for
64-bit floating point values.
- Function: jit_float64 jit_float64_acos (jit_float64 value1)
- Function: jit_float64 jit_float64_asin (jit_float64 value1)
- Function: jit_float64 jit_float64_atan (jit_float64 value1)
- Function: jit_float64 jit_float64_atan2 (jit_float64 value1, jit_float64 value2)
- Function: jit_float64 jit_float64_ceil (jit_float64 value1)
- Function: jit_float64 jit_float64_cos (jit_float64 value1)
- Function: jit_float64 jit_float64_cosh (jit_float64 value1)
- Function: jit_float64 jit_float64_exp (jit_float64 value1)
- Function: jit_float64 jit_float64_floor (jit_float64 value1)
- Function: jit_float64 jit_float64_log (jit_float64 value1)
- Function: jit_float64 jit_float64_log10 (jit_float64 value1)
- Function: jit_float64 jit_float64_pow (jit_float64 value1, jit_float64 value2)
- Function: jit_float64 jit_float64_sin (jit_float64 value1)
- Function: jit_float64 jit_float64_sinh (jit_float64 value1)
- Function: jit_float64 jit_float64_sqrt (jit_float64 value1)
- Function: jit_float64 jit_float64_tan (jit_float64 value1)
- Function: jit_float64 jit_float64_tanh (jit_float64 value1)
Apply a mathematical function to one or two 64-bit floating-point values.
- Function: jit_float64 jit_float64_rint (jit_float64 value1)
Round value1 to the nearest integer. Half-way cases
are rounded to an even number.
- Function: jit_float64 jit_float64_round (jit_float64 value1)
Round value1 to the nearest integer. Half-way cases
are rounded away from zero.
- Function: jit_int jit_float64_is_finite (jit_float64 value)
Determine if a 64-bit floating point value is finite, returning
non-zero if it is, or zero if it is not. If the value is
"not a number", this function returns zero.
- Function: jit_int jit_float64_is_nan (jit_float64 value)
Determine if a 64-bit floating point value is "not a number", returning
non-zero if it is, or zero if it is not.
- Function: jit_int jit_float64_is_inf (jit_float64 value)
Determine if a 64-bit floating point value is infinite or not.
Returns -1 for negative infinity, 1 for positive infinity,
and 0 for everything else.
Note: this function is preferable to the system isinf intrinsic
because some systems have a broken isinf function that returns
1 for both positive and negative infinity.
- Function: jit_nfloat jit_nfloat_add (jit_nfloat value1, jit_nfloat value2)
- Function: jit_nfloat jit_nfloat_sub (jit_nfloat value1, jit_nfloat value2)
- Function: jit_nfloat jit_nfloat_mul (jit_nfloat value1, jit_nfloat value2)
- Function: jit_nfloat jit_nfloat_div (jit_nfloat value1, jit_nfloat value2)
- Function: jit_nfloat jit_nfloat_rem (jit_nfloat value1, jit_nfloat value2)
- Function: jit_nfloat jit_nfloat_ieee_rem (jit_nfloat value1, jit_nfloat value2)
- Function: jit_nfloat jit_nfloat_neg (jit_nfloat value1)
Perform an arithmetic operation on native floating-point values.
- Function: jit_int jit_nfloat_eq (jit_nfloat value1, jit_nfloat value2)
- Function: jit_int jit_nfloat_ne (jit_nfloat value1, jit_nfloat value2)
- Function: jit_int jit_nfloat_lt (jit_nfloat value1, jit_nfloat value2)
- Function: jit_int jit_nfloat_le (jit_nfloat value1, jit_nfloat value2)
- Function: jit_int jit_nfloat_gt (jit_nfloat value1, jit_nfloat value2)
- Function: jit_int jit_nfloat_ge (jit_nfloat value1, jit_nfloat value2)
Compare two native floating-point values, returning 0 or 1 based
on their relationship.
- Function: jit_int jit_nfloat_cmpl (jit_nfloat value1, jit_nfloat value2)
Compare two native floating-point values and return -1, 0, or 1 based
on their relationship. If either value is "not a number",
then -1 is returned.
- Function: jit_int jit_nfloat_cmpg (jit_nfloat value1, jit_nfloat value2)
Compare two native floating-point values and return -1, 0, or 1 based
on their relationship. If either value is "not a number",
then 1 is returned.
- Function: jit_nfloat jit_nfloat_abs (jit_nfloat value1)
- Function: jit_nfloat jit_nfloat_min (jit_nfloat value1, jit_nfloat value2)
- Function: jit_nfloat jit_nfloat_max (jit_nfloat value1, jit_nfloat value2)
- Function: jit_int jit_nfloat_sign (jit_nfloat value1)
Calculate the absolute value, minimum, maximum, or sign for
native floating point values.
- Function: jit_nfloat jit_nfloat_acos (jit_nfloat value1)
- Function: jit_nfloat jit_nfloat_asin (jit_nfloat value1)
- Function: jit_nfloat jit_nfloat_atan (jit_nfloat value1)
- Function: jit_nfloat jit_nfloat_atan2 (jit_nfloat value1, jit_nfloat value2)
- Function: jit_nfloat jit_nfloat_ceil (jit_nfloat value1)
- Function: jit_nfloat jit_nfloat_cos (jit_nfloat value1)
- Function: jit_nfloat jit_nfloat_cosh (jit_nfloat value1)
- Function: jit_nfloat jit_nfloat_exp (jit_nfloat value1)
- Function: jit_nfloat jit_nfloat_floor (jit_nfloat value1)
- Function: jit_nfloat jit_nfloat_log (jit_nfloat value1)
- Function: jit_nfloat jit_nfloat_log10 (jit_nfloat value1)
- Function: jit_nfloat jit_nfloat_pow (jit_nfloat value1, jit_nfloat value2)
- Function: jit_nfloat jit_nfloat_sin (jit_nfloat value1)
- Function: jit_nfloat jit_nfloat_sinh (jit_nfloat value1)
- Function: jit_nfloat jit_nfloat_sqrt (jit_nfloat value1)
- Function: jit_nfloat jit_nfloat_tan (jit_nfloat value1)
- Function: jit_nfloat jit_nfloat_tanh (jit_nfloat value1)
Apply a mathematical function to one or two native floating-point values.
- Function: jit_nfloat jit_nfloat_rint (jit_nfloat value1)
Round value1 to the nearest integer. Half-way cases
are rounded to an even number.
- Function: jit_nfloat jit_nfloat_round (jit_nfloat value1)
Round value1 to the nearest integer. Half-way cases
are rounded away from zero.
- Function: jit_int jit_nfloat_is_finite (jit_nfloat value)
Determine if a native floating point value is finite, returning
non-zero if it is, or zero if it is not. If the value is
"not a number", this function returns zero.
- Function: jit_int jit_nfloat_is_nan (jit_nfloat value)
Determine if a native floating point value is "not a number", returning
non-zero if it is, or zero if it is not.
- Function: jit_int jit_nfloat_is_inf (jit_nfloat value)
Determine if a native floating point value is infinite or not.
Returns -1 for negative infinity, 1 for positive infinity,
and 0 for everything else.
Note: this function is preferable to the system isinf intrinsic
because some systems have a broken isinf function that returns
1 for both positive and negative infinity.
- Function: jit_int jit_int_to_sbyte (jit_int value)
- Function: jit_int jit_int_to_ubyte (jit_int value)
- Function: jit_int jit_int_to_short (jit_int value)
- Function: jit_int jit_int_to_ushort (jit_int value)
- Function: jit_int jit_int_to_int (jit_int value)
- Function: jit_uint jit_int_to_uint (jit_int value)
- Function: jit_long jit_int_to_long (jit_int value)
- Function: jit_ulong jit_int_to_ulong (jit_int value)
- Function: jit_int jit_uint_to_int (jit_uint value)
- Function: jit_uint jit_uint_to_uint (jit_uint value)
- Function: jit_long jit_uint_to_long (jit_uint value)
- Function: jit_ulong jit_uint_to_ulong (jit_uint value)
- Function: jit_int jit_long_to_int (jit_long value)
- Function: jit_uint jit_long_to_uint (jit_long value)
- Function: jit_long jit_long_to_long (jit_long value)
- Function: jit_ulong jit_long_to_ulong (jit_long value)
- Function: jit_int jit_ulong_to_int (jit_ulong value)
- Function: jit_uint jit_ulong_to_uint (jit_ulong value)
- Function: jit_long jit_ulong_to_long (jit_ulong value)
- Function: jit_ulong jit_ulong_to_ulong (jit_ulong value)
Convert between integer types.
- Function: jit_int jit_int_to_sbyte_ovf (jit_int *result, jit_int value)
- Function: jit_int jit_int_to_ubyte_ovf (jit_int *result, jit_int value)
- Function: jit_int jit_int_to_short_ovf (jit_int *result, jit_int value)
- Function: jit_int jit_int_to_ushort_ovf (jit_int *result, jit_int value)
- Function: jit_int jit_int_to_int_ovf (jit_int *result, jit_int value)
- Function: jit_int jit_int_to_uint_ovf (jit_uint *result, jit_int value)
- Function: jit_int jit_int_to_long_ovf (jit_long *result, jit_int value)
- Function: jit_int jit_int_to_ulong_ovf (jit_ulong *result, jit_int value)
- Function: jit_int jit_uint_to_int_ovf (jit_int *result, jit_uint value)
- Function: jit_int jit_uint_to_uint_ovf (jit_uint *result, jit_uint value)
- Function: jit_int jit_uint_to_long_ovf (jit_long *result, jit_uint value)
- Function: jit_int jit_uint_to_ulong_ovf (jit_ulong *result, jit_uint value)
- Function: jit_int jit_long_to_int_ovf (jit_int *result, jit_long value)
- Function: jit_int jit_long_to_uint_ovf (jit_uint *result, jit_long value)
- Function: jit_int jit_long_to_long_ovf (jit_long *result, jit_long value)
- Function: jit_int jit_long_to_ulong_ovf (jit_ulong *result, jit_long value)
- Function: jit_int jit_ulong_to_int_ovf (jit_int *result, jit_ulong value)
- Function: jit_int jit_ulong_to_uint_ovf (jit_uint *result, jit_ulong value)
- Function: jit_int jit_ulong_to_long_ovf (jit_long *result, jit_ulong value)
- Function: jit_int jit_ulong_to_ulong_ovf (jit_ulong *result, jit_ulong value)
Convert between integer types with overflow detection.
- Function: jit_int jit_nfloat_to_int (jit_nfloat value)
- Function: jit_uint jit_nfloat_to_uint (jit_nfloat value)
- Function: jit_long jit_nfloat_to_long (jit_nfloat value)
- Function: jit_ulong jit_nfloat_to_ulong (jit_nfloat value)
Convert a native floating-point value into an integer.
- Function: jit_int jit_nfloat_to_int_ovf (jit_int *result, jit_nfloat value)
- Function: jit_uint jit_nfloat_to_uint_ovf (jit_uint *result, jit_nfloat value)
- Function: jit_long jit_nfloat_to_long_ovf (jit_long *result, jit_nfloat value)
- Function: jit_ulong jit_nfloat_to_ulong_ovf (jit_ulong *result, jit_nfloat value)
Convert a native floating-point value into an integer,
with overflow detection. Returns JIT_RESULT_OK if the conversion
was successful or JIT_RESULT_OVERFLOW if an overflow occurred.
- Function: jit_nfloat jit_int_to_nfloat (jit_int value)
- Function: jit_nfloat jit_uint_to_nfloat (jit_uint value)
- Function: jit_nfloat jit_long_to_nfloat (jit_long value)
- Function: jit_nfloat jit_ulong_to_nfloat (jit_ulong value)
Convert an integer into native floating-point value.
- Function: jit_nfloat jit_float32_to_nfloat (jit_float32 value)
- Function: jit_nfloat jit_float64_to_nfloat (jit_float64 value)
- Function: jit_float32 jit_nfloat_to_float32 (jit_nfloat value)
- Function: jit_float64 jit_nfloat_to_float64 (jit_nfloat value)
Convert between floating-point types.
This document was generated by Klaus Treichel on May, 11 2008 using texi2html 1.78.