468 lines
12 KiB
C
468 lines
12 KiB
C
/* Semantics ops support for CGEN-based simulators.
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Copyright (C) 1996, 1997, 1998, 1999 Free Software Foundation, Inc.
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Contributed by Cygnus Solutions.
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This file is part of the GNU Simulators.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifndef CGEN_SEM_OPS_H
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#define CGEN_SEM_OPS_H
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#if defined (__GNUC__) && ! defined (SEMOPS_DEFINE_INLINE)
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#define SEMOPS_DEFINE_INLINE
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#define SEMOPS_INLINE extern inline
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#else
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#define SEMOPS_INLINE
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#endif
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/* Semantic operations.
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At one point this file was machine generated. Maybe it will be again. */
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/* TODO: Lazy encoding/decoding of fp values. */
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/* These don't really have a mode. */
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#define ANDIF(x, y) ((x) && (y))
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#define ORIF(x, y) ((x) || (y))
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#define ANDBI(x, y) ((x) & (y))
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#define ORBI(x, y) ((x) | (y))
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#define XORBI(x, y) ((x) ^ (y))
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#define NEGBI(x) (- (x))
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#define NOTBI(x) (! (BI) (x))
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#define INVBI(x) (~ (x))
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#define EQBI(x, y) ((BI) (x) == (BI) (y))
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#define NEBI(x, y) ((BI) (x) != (BI) (y))
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#define LTBI(x, y) ((BI) (x) < (BI) (y))
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#define LEBI(x, y) ((BI) (x) <= (BI) (y))
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#define GTBI(x, y) ((BI) (x) > (BI) (y))
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#define GEBI(x, y) ((BI) (x) >= (BI) (y))
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#define LTUBI(x, y) ((BI) (x) < (BI) (y))
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#define LEUBI(x, y) ((BI) (x) <= (BI) (y))
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#define GTUBI(x, y) ((BI) (x) > (BI) (y))
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#define GEUBI(x, y) ((BI) (x) >= (BI) (y))
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#define ADDQI(x, y) ((x) + (y))
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#define SUBQI(x, y) ((x) - (y))
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#define MULQI(x, y) ((x) * (y))
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#define DIVQI(x, y) ((QI) (x) / (QI) (y))
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#define UDIVQI(x, y) ((UQI) (x) / (UQI) (y))
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#define MODQI(x, y) ((QI) (x) % (QI) (y))
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#define UMODQI(x, y) ((UQI) (x) % (UQI) (y))
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#define SRAQI(x, y) ((QI) (x) >> (y))
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#define SRLQI(x, y) ((UQI) (x) >> (y))
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#define SLLQI(x, y) ((UQI) (x) << (y))
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extern QI RORQI (QI, int);
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extern QI ROLQI (QI, int);
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#define ANDQI(x, y) ((x) & (y))
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#define ORQI(x, y) ((x) | (y))
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#define XORQI(x, y) ((x) ^ (y))
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#define NEGQI(x) (- (x))
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#define NOTQI(x) (! (QI) (x))
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#define INVQI(x) (~ (x))
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#define EQQI(x, y) ((QI) (x) == (QI) (y))
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#define NEQI(x, y) ((QI) (x) != (QI) (y))
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#define LTQI(x, y) ((QI) (x) < (QI) (y))
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#define LEQI(x, y) ((QI) (x) <= (QI) (y))
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#define GTQI(x, y) ((QI) (x) > (QI) (y))
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#define GEQI(x, y) ((QI) (x) >= (QI) (y))
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#define LTUQI(x, y) ((UQI) (x) < (UQI) (y))
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#define LEUQI(x, y) ((UQI) (x) <= (UQI) (y))
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#define GTUQI(x, y) ((UQI) (x) > (UQI) (y))
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#define GEUQI(x, y) ((UQI) (x) >= (UQI) (y))
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#define ADDHI(x, y) ((x) + (y))
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#define SUBHI(x, y) ((x) - (y))
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#define MULHI(x, y) ((x) * (y))
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#define DIVHI(x, y) ((HI) (x) / (HI) (y))
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#define UDIVHI(x, y) ((UHI) (x) / (UHI) (y))
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#define MODHI(x, y) ((HI) (x) % (HI) (y))
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#define UMODHI(x, y) ((UHI) (x) % (UHI) (y))
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#define SRAHI(x, y) ((HI) (x) >> (y))
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#define SRLHI(x, y) ((UHI) (x) >> (y))
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#define SLLHI(x, y) ((UHI) (x) << (y))
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extern HI RORHI (HI, int);
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extern HI ROLHI (HI, int);
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#define ANDHI(x, y) ((x) & (y))
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#define ORHI(x, y) ((x) | (y))
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#define XORHI(x, y) ((x) ^ (y))
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#define NEGHI(x) (- (x))
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#define NOTHI(x) (! (HI) (x))
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#define INVHI(x) (~ (x))
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#define EQHI(x, y) ((HI) (x) == (HI) (y))
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#define NEHI(x, y) ((HI) (x) != (HI) (y))
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#define LTHI(x, y) ((HI) (x) < (HI) (y))
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#define LEHI(x, y) ((HI) (x) <= (HI) (y))
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#define GTHI(x, y) ((HI) (x) > (HI) (y))
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#define GEHI(x, y) ((HI) (x) >= (HI) (y))
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#define LTUHI(x, y) ((UHI) (x) < (UHI) (y))
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#define LEUHI(x, y) ((UHI) (x) <= (UHI) (y))
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#define GTUHI(x, y) ((UHI) (x) > (UHI) (y))
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#define GEUHI(x, y) ((UHI) (x) >= (UHI) (y))
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#define ADDSI(x, y) ((x) + (y))
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#define SUBSI(x, y) ((x) - (y))
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#define MULSI(x, y) ((x) * (y))
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#define DIVSI(x, y) ((SI) (x) / (SI) (y))
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#define UDIVSI(x, y) ((USI) (x) / (USI) (y))
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#define MODSI(x, y) ((SI) (x) % (SI) (y))
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#define UMODSI(x, y) ((USI) (x) % (USI) (y))
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#define SRASI(x, y) ((SI) (x) >> (y))
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#define SRLSI(x, y) ((USI) (x) >> (y))
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#define SLLSI(x, y) ((USI) (x) << (y))
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extern SI RORSI (SI, int);
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extern SI ROLSI (SI, int);
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#define ANDSI(x, y) ((x) & (y))
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#define ORSI(x, y) ((x) | (y))
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#define XORSI(x, y) ((x) ^ (y))
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#define NEGSI(x) (- (x))
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#define NOTSI(x) (! (SI) (x))
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#define INVSI(x) (~ (x))
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#define EQSI(x, y) ((SI) (x) == (SI) (y))
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#define NESI(x, y) ((SI) (x) != (SI) (y))
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#define LTSI(x, y) ((SI) (x) < (SI) (y))
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#define LESI(x, y) ((SI) (x) <= (SI) (y))
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#define GTSI(x, y) ((SI) (x) > (SI) (y))
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#define GESI(x, y) ((SI) (x) >= (SI) (y))
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#define LTUSI(x, y) ((USI) (x) < (USI) (y))
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#define LEUSI(x, y) ((USI) (x) <= (USI) (y))
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#define GTUSI(x, y) ((USI) (x) > (USI) (y))
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#define GEUSI(x, y) ((USI) (x) >= (USI) (y))
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#ifdef DI_FN_SUPPORT
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extern DI ADDDI (DI, DI);
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extern DI SUBDI (DI, DI);
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extern DI MULDI (DI, DI);
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extern DI DIVDI (DI, DI);
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extern DI UDIVDI (DI, DI);
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extern DI MODDI (DI, DI);
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extern DI UMODDI (DI, DI);
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extern DI SRADI (DI, int);
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extern UDI SRLDI (UDI, int);
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extern UDI SLLDI (UDI, int);
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extern DI RORDI (DI, int);
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extern DI ROLDI (DI, int);
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extern DI ANDDI (DI, DI);
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extern DI ORDI (DI, DI);
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extern DI XORDI (DI, DI);
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extern DI NEGDI (DI);
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extern int NOTDI (DI);
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extern DI INVDI (DI);
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extern int EQDI (DI, DI);
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extern int NEDI (DI, DI);
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extern int LTDI (DI, DI);
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extern int LEDI (DI, DI);
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extern int GTDI (DI, DI);
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extern int GEDI (DI, DI);
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extern int LTUDI (UDI, UDI);
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extern int LEUDI (UDI, UDI);
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extern int GTUDI (UDI, UDI);
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extern int GEUDI (UDI, UDI);
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#else /* ! DI_FN_SUPPORT */
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#define ADDDI(x, y) ((x) + (y))
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#define SUBDI(x, y) ((x) - (y))
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#define MULDI(x, y) ((x) * (y))
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#define DIVDI(x, y) ((DI) (x) / (DI) (y))
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#define UDIVDI(x, y) ((UDI) (x) / (UDI) (y))
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#define MODDI(x, y) ((DI) (x) % (DI) (y))
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#define UMODDI(x, y) ((UDI) (x) % (UDI) (y))
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#define SRADI(x, y) ((DI) (x) >> (y))
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#define SRLDI(x, y) ((UDI) (x) >> (y))
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#define SLLDI(x, y) ((UDI) (x) << (y))
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extern DI RORDI (DI, int);
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extern DI ROLDI (DI, int);
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#define ANDDI(x, y) ((x) & (y))
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#define ORDI(x, y) ((x) | (y))
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#define XORDI(x, y) ((x) ^ (y))
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#define NEGDI(x) (- (x))
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#define NOTDI(x) (! (DI) (x))
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#define INVDI(x) (~ (x))
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#define EQDI(x, y) ((DI) (x) == (DI) (y))
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#define NEDI(x, y) ((DI) (x) != (DI) (y))
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#define LTDI(x, y) ((DI) (x) < (DI) (y))
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#define LEDI(x, y) ((DI) (x) <= (DI) (y))
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#define GTDI(x, y) ((DI) (x) > (DI) (y))
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#define GEDI(x, y) ((DI) (x) >= (DI) (y))
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#define LTUDI(x, y) ((UDI) (x) < (UDI) (y))
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#define LEUDI(x, y) ((UDI) (x) <= (UDI) (y))
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#define GTUDI(x, y) ((UDI) (x) > (UDI) (y))
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#define GEUDI(x, y) ((UDI) (x) >= (UDI) (y))
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#endif /* DI_FN_SUPPORT */
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#define EXTBIQI(x) ((QI) (BI) (x))
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#define EXTBIHI(x) ((HI) (BI) (x))
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#define EXTBISI(x) ((SI) (BI) (x))
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#if defined (DI_FN_SUPPORT)
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extern DI EXTBIDI (BI);
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#else
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#define EXTBIDI(x) ((DI) (BI) (x))
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#endif
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#define EXTQIHI(x) ((HI) (QI) (x))
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#define EXTQISI(x) ((SI) (QI) (x))
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#if defined (DI_FN_SUPPORT)
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extern DI EXTQIDI (QI);
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#else
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#define EXTQIDI(x) ((DI) (QI) (x))
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#endif
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#define EXTHISI(x) ((SI) (HI) (x))
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#if defined (DI_FN_SUPPORT)
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extern DI EXTHIDI (HI);
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#else
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#define EXTHIDI(x) ((DI) (HI) (x))
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#endif
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#if defined (DI_FN_SUPPORT)
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extern DI EXTSIDI (SI);
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#else
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#define EXTSIDI(x) ((DI) (SI) (x))
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#endif
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#define ZEXTBIQI(x) ((QI) (BI) (x))
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#define ZEXTBIHI(x) ((HI) (BI) (x))
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#define ZEXTBISI(x) ((SI) (BI) (x))
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#if defined (DI_FN_SUPPORT)
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extern DI ZEXTBIDI (BI);
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#else
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#define ZEXTBIDI(x) ((DI) (BI) (x))
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#endif
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#define ZEXTQIHI(x) ((HI) (UQI) (x))
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#define ZEXTQISI(x) ((SI) (UQI) (x))
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#if defined (DI_FN_SUPPORT)
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extern DI ZEXTQIDI (QI);
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#else
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#define ZEXTQIDI(x) ((DI) (UQI) (x))
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#endif
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#define ZEXTHISI(x) ((SI) (UHI) (x))
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#if defined (DI_FN_SUPPORT)
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extern DI ZEXTHIDI (HI);
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#else
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#define ZEXTHIDI(x) ((DI) (UHI) (x))
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#endif
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#if defined (DI_FN_SUPPORT)
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extern DI ZEXTSIDI (SI);
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#else
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#define ZEXTSIDI(x) ((DI) (USI) (x))
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#endif
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#define TRUNCQIBI(x) ((BI) (QI) (x))
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#define TRUNCHIBI(x) ((BI) (HI) (x))
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#define TRUNCHIQI(x) ((QI) (HI) (x))
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#define TRUNCSIBI(x) ((BI) (SI) (x))
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#define TRUNCSIQI(x) ((QI) (SI) (x))
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#define TRUNCSIHI(x) ((HI) (SI) (x))
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#if defined (DI_FN_SUPPORT)
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extern BI TRUNCDIBI (DI);
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#else
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#define TRUNCDIBI(x) ((BI) (DI) (x))
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#endif
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#if defined (DI_FN_SUPPORT)
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extern QI TRUNCDIQI (DI);
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#else
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#define TRUNCDIQI(x) ((QI) (DI) (x))
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#endif
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#if defined (DI_FN_SUPPORT)
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extern HI TRUNCDIHI (DI);
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#else
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#define TRUNCDIHI(x) ((HI) (DI) (x))
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#endif
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#if defined (DI_FN_SUPPORT)
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extern SI TRUNCDISI (DI);
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#else
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#define TRUNCDISI(x) ((SI) (DI) (x))
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#endif
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/* Composing/decomposing the various types.
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Word ordering is endian-independent. Words are specified most to least
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significant and word number 0 is the most significant word.
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??? May also wish an endian-dependent version. Later. */
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#ifdef SEMOPS_DEFINE_INLINE
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SEMOPS_INLINE SF
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SUBWORDSISF (SI in)
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{
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union { SI in; SF out; } x;
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x.in = in;
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return x.out;
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}
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SEMOPS_INLINE SI
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SUBWORDSFSI (SF in)
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{
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union { SF in; SI out; } x;
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x.in = in;
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return x.out;
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}
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SEMOPS_INLINE SI
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SUBWORDDISI (DI in, int word)
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{
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if (word == 0)
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return (UDI) in >> 32;
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else
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return in;
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}
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SEMOPS_INLINE SI
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SUBWORDDFSI (DF in, int word)
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{
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/* Note: typedef UDI DF; */
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if (word == 0)
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return (UDI) in >> 32;
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else
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return in;
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}
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SEMOPS_INLINE SI
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SUBWORDXFSI (XF in, int word)
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{
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/* Note: typedef struct { SI parts[3]; } XF; */
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union { XF in; SI out[3]; } x;
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x.in = in;
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return x.out[word];
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}
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SEMOPS_INLINE SI
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SUBWORDTFSI (TF in, int word)
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{
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/* Note: typedef struct { SI parts[4]; } TF; */
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union { TF in; SI out[4]; } x;
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x.in = in;
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return x.out[word];
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}
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SEMOPS_INLINE DI
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JOINSIDI (SI x0, SI x1)
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{
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if (CURRENT_TARGET_BYTE_ORDER == BIG_ENDIAN)
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return MAKEDI (x0, x1);
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else
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return MAKEDI (x1, x0);
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}
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SEMOPS_INLINE DF
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JOINSIDF (SI x0, SI x1)
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{
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union { SI in[2]; DF out; } x;
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if (CURRENT_TARGET_BYTE_ORDER == BIG_ENDIAN)
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x.in[0] = x0, x.in[1] = x1;
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else
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x.in[1] = x0, x.in[0] = x1;
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return x.out;
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}
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SEMOPS_INLINE XF
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JOINSIXF (SI x0, SI x1, SI x2)
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{
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union { SI in[3]; XF out; } x;
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if (CURRENT_TARGET_BYTE_ORDER == BIG_ENDIAN)
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x.in[0] = x0, x.in[1] = x1, x.in[2] = x2;
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else
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x.in[2] = x0, x.in[1] = x1, x.in[0] = x2;
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return x.out;
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}
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SEMOPS_INLINE TF
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JOINSITF (SI x0, SI x1, SI x2, SI x3)
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{
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union { SI in[4]; TF out; } x;
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if (CURRENT_TARGET_BYTE_ORDER == BIG_ENDIAN)
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x.in[0] = x0, x.in[1] = x1, x.in[2] = x2, x.in[3] = x3;
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else
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x.in[3] = x0, x.in[2] = x1, x.in[1] = x2, x.in[0] = x3;
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return x.out;
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}
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#else
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SF SUBWORDSISF (SI);
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SI SUBWORDSFSI (SF);
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SI SUBWORDDISI (DI, int);
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SI SUBWORDDFSI (DF, int);
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SI SUBWORDXFSI (XF, int);
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SI SUBWORDTFSI (TF, int);
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DI JOINSIDI (SI, SI);
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DF JOINSIDF (SI, SI);
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XF JOINSIXF (SI, SI, SI);
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TF JOINSITF (SI, SI, SI, SI);
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#endif /* SUBWORD,JOIN */
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/* Semantic support utilities. */
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#ifdef SEMOPS_DEFINE_INLINE
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SEMOPS_INLINE SI
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ADDCSI (SI a, SI b, BI c)
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{
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SI res = ADDSI (a, ADDSI (b, c));
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return res;
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}
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SEMOPS_INLINE BI
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||
ADDCFSI (SI a, SI b, BI c)
|
||
{
|
||
SI tmp = ADDSI (a, ADDSI (b, c));
|
||
BI res = ((USI) tmp < (USI) a) || (c && tmp == a);
|
||
return res;
|
||
}
|
||
|
||
SEMOPS_INLINE BI
|
||
ADDOFSI (SI a, SI b, BI c)
|
||
{
|
||
SI tmp = ADDSI (a, ADDSI (b, c));
|
||
BI res = (((a < 0) == (b < 0))
|
||
&& ((a < 0) != (tmp < 0)));
|
||
return res;
|
||
}
|
||
|
||
SEMOPS_INLINE SI
|
||
SUBCSI (SI a, SI b, BI c)
|
||
{
|
||
SI res = SUBSI (a, ADDSI (b, c));
|
||
return res;
|
||
}
|
||
|
||
SEMOPS_INLINE BI
|
||
SUBCFSI (SI a, SI b, BI c)
|
||
{
|
||
BI res = ((USI) a < (USI) b) || (c && a == b);
|
||
return res;
|
||
}
|
||
|
||
SEMOPS_INLINE BI
|
||
SUBOFSI (SI a, SI b, BI c)
|
||
{
|
||
SI tmp = SUBSI (a, ADDSI (b, c));
|
||
BI res = (((a < 0) != (b < 0))
|
||
&& ((a < 0) != (tmp < 0)));
|
||
return res;
|
||
}
|
||
|
||
#else
|
||
|
||
SI ADDCSI (SI, SI, BI);
|
||
UBI ADDCFSI (SI, SI, BI);
|
||
UBI ADDOFSI (SI, SI, BI);
|
||
SI SUBCSI (SI, SI, BI);
|
||
UBI SUBCFSI (SI, SI, BI);
|
||
UBI SUBOFSI (SI, SI, BI);
|
||
|
||
#endif
|
||
|
||
#endif /* CGEN_SEM_OPS_H */
|