53 lines
2.5 KiB
C
53 lines
2.5 KiB
C
/* hp2100_fp1.h: HP 2100/1000 multiple-precision floating point definitions
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Copyright (c) 2005-2006, J. David Bryan
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Permission is hereby granted, free of charge, to any person obtaining a
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copy of this software and associated documentation files (the "Software"),
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to deal in the Software without restriction, including without limitation
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the rights to use, copy, modify, merge, publish, distribute, sublicense,
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and/or sell copies of the Software, and to permit persons to whom the
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Software is furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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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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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 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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*/
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#ifndef HP2100_FP1_H_
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#define HP2100_FP1_H_ 0
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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);
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#endif
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