47 lines
2.2 KiB
C
47 lines
2.2 KiB
C
/* hp2100_fp.h: HP 2100/21MX floating point definitions
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Copyright (c) 2002-2006, Robert M. Supnik
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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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ROBERT M SUPNIK 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 Robert M Supnik shall not be
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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 Robert M Supnik.
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01-Dec-06 JDB Reworked FFP helpers for 1000-F support, deleted f_pwr2
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26-Sep-06 JDB Moved from hp2100_fp.c to simplify extensions
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*/
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#ifndef HP2100_FP_H_
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#define HP2100_FP_H_
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/* Firmware floating-point routines */
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uint32 f_as (uint32 op, t_bool sub); /* FAD/FSB */
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uint32 f_mul (uint32 op); /* FMP */
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uint32 f_div (uint32 op); /* FDV */
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uint32 f_fix (void); /* FIX */
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uint32 f_flt (void); /* FLT */
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/* Firmware FFP helpers */
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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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#endif
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