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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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ROBERT M SUPNIK BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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THE AUTHOR BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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Except as contained in this notice, the name of the author shall not
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be used in advertising or otherwise to promote the sale, use or other dealings
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in this Software without prior written authorization from the author.
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Except as contained in this notice, the name of the author shall not be used
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in advertising or otherwise to promote the sale, use or other dealings in
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this Software without prior written authorization from the author.
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16-Oct-06 JDB Generalized FP calling sequences for F-Series
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12-Oct-06 JDB Altered x_trun for F-Series FFP compatibility
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#ifndef _HP2100_FP1_H_
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#define _HP2100_FP1_H_ 0
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/* HP memory representation of an extended-precision number */
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#define AS_XPN(x) (*(XPN *) &(x)) /* view as XPN */
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XPN ReadX (uint32 va);
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void WriteX (uint32 va, XPN packed);
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uint32 x_add (XPN *sum, XPN augend, XPN addend);
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uint32 x_sub (XPN *difference, XPN minuend, XPN subtrahend);
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uint32 x_mpy (XPN *product, XPN multiplicand, XPN multiplier);
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uint32 x_div (XPN *quotient, XPN dividend, XPN divisor);
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uint32 x_pak (XPN *result, XPN mantissa, int32 exponent);
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uint32 x_com (XPN *mantissa);
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uint32 x_dcm (XPN *packed);
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void x_trun (XPN *result, XPN source);
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/* Special operands. */
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#define ACCUM NULL /* result not returned */
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static const OP NOP = { { 0, 0, 0, 0, 0 } }; /* unneeded operand */
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/* Generalized floating-point handlers. */
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void fp_prec (uint16 opcode, OPSIZE *operand_l, OPSIZE *operand_r, OPSIZE *result);
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uint32 fp_exec (uint16 opcode, OP *result, OP operand_l, OP operand_r);
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OP fp_accum (const OP *operand, OPSIZE precision);
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uint32 fp_pack (OP *result, OP mantissa, int32 exponent, OPSIZE precision);
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uint32 fp_nrpack (OP *result, OP mantissa, int32 exponent, OPSIZE precision);
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uint32 fp_unpack (OP *mantissa, int32 *exponent, OP packed, OPSIZE precision);
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uint32 fp_ucom (OP *mantissa, OPSIZE precision);
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uint32 fp_pcom (OP *packed, OPSIZE precision);
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uint32 fp_trun (OP *result, OP source, OPSIZE precision);
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uint32 fp_cvt (OP *result, OPSIZE source_precision, OPSIZE dest_precision);