diff options
Diffstat (limited to 'sim/common/sim-n-bits.h')
| -rw-r--r-- | sim/common/sim-n-bits.h | 187 |
1 files changed, 0 insertions, 187 deletions
diff --git a/sim/common/sim-n-bits.h b/sim/common/sim-n-bits.h deleted file mode 100644 index 996095a..0000000 --- a/sim/common/sim-n-bits.h +++ /dev/null @@ -1,187 +0,0 @@ -/* This file is part of the program psim. - - Copyright (C) 1994-1996, Andrew Cagney <cagney@highland.com.au> - Copyright (C) 1997, Free Software Foundation, Inc. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. - - */ - - -#ifndef N -#error "N must be #defined" -#endif - -#include "sim-xcat.h" - -#if defined(__STDC__) && defined(signed) -/* If signed were defined to be say __signed (ie, some versions of Linux), - then the signedN macro would not work correctly. If we have a standard - compiler, we have signed. */ -#undef signed -#endif - -/* NOTE: See end of file for #undef */ -#define unsignedN XCONCAT2(unsigned,N) -#define signedN XCONCAT2(signed,N) -#define MASKn XCONCAT2(MASK,N) -#define LSMASKEDn XCONCAT2(LSMASKED,N) -#define LSMASKn XCONCAT2(LSMASK,N) -#define MSMASKEDn XCONCAT2(MSMASKED,N) -#define MSMASKn XCONCAT2(MSMASK,N) -#define LSEXTRACTEDn XCONCAT2(LSEXTRACTED,N) -#define MSEXTRACTEDn XCONCAT2(MSEXTRACTED,N) -#define INSERTEDn XCONCAT2(INSERTED,N) -#define ROTn XCONCAT2(ROT,N) -#define ROTLn XCONCAT2(ROTL,N) -#define ROTRn XCONCAT2(ROTR,N) -#define SEXTn XCONCAT2(SEXT,N) - -/* TAGS: LSMASKED16 LSMASKED32 LSMASKED64 */ - -INLINE_SIM_BITS\ -(unsignedN) -LSMASKEDn (unsignedN word, - int start, - int stop) -{ - word &= LSMASKn (start, stop); - return word; -} - -/* TAGS: MSMASKED16 MSMASKED32 MSMASKED64 */ - -INLINE_SIM_BITS\ -(unsignedN) -MSMASKEDn (unsignedN word, - int start, - int stop) -{ - word &= MSMASKn (start, stop); - return word; -} - -/* TAGS: LSEXTRACTED16 LSEXTRACTED32 LSEXTRACTED64 */ - -INLINE_SIM_BITS\ -(unsignedN) -LSEXTRACTEDn (unsignedN val, - int start, - int stop) -{ - val <<= (N - 1 - start); /* drop high bits */ - val >>= (N - 1 - start) + (stop); /* drop low bits */ - return val; -} - -/* TAGS: MSEXTRACTED16 MSEXTRACTED32 MSEXTRACTED64 */ - -INLINE_SIM_BITS\ -(unsignedN) -MSEXTRACTEDn (unsignedN val, - int start, - int stop) -{ - val <<= (start); /* drop high bits */ - val >>= (start) + (N - 1 - stop); /* drop low bits */ - return val; -} - -/* TAGS: INSERTED16 INSERTED32 INSERTED64 */ - -INLINE_SIM_BITS\ -(unsignedN) -INSERTEDn (unsignedN val, - int start, - int stop) -{ - val <<= _LSB_SHIFT (N, stop); - val &= MASKn (start, stop); - return val; -} - -/* TAGS: ROT16 ROT32 ROT64 */ - -INLINE_SIM_BITS\ -(unsignedN) -ROTn (unsignedN val, - int shift) -{ - if (shift > 0) - return ROTRn (val, shift); - else if (shift < 0) - return ROTLn (val, -shift); - else - return val; -} - -/* TAGS: ROTL16 ROTL32 ROTL64 */ - -INLINE_SIM_BITS\ -(unsignedN) -ROTLn (unsignedN val, - int shift) -{ - unsignedN result; - ASSERT (shift <= N); - result = (((val) << (shift)) | ((val) >> ((N)-(shift)))); - return result; -} - -/* TAGS: ROTR16 ROTR32 ROTR64 */ - -INLINE_SIM_BITS\ -(unsignedN) -ROTRn (unsignedN val, - int shift) -{ - unsignedN result; - ASSERT (shift <= N); - result = (((val) >> (shift)) | ((val) << ((N)-(shift)))); - return result; -} - -/* TAGS: SEXT16 SEXT32 SEXT64 */ - -INLINE_SIM_BITS\ -(unsignedN) -SEXTn (signedN val, - int sign_bit) -{ - /* make the sign-bit most significant and then smear it back into - position */ - ASSERT (sign_bit < N); - val <<= _MSB_SHIFT (N, sign_bit); - val >>= _MSB_SHIFT (N, sign_bit); - return val; -} - - -/* NOTE: See start of file for #define */ -#undef SEXTn -#undef ROTLn -#undef ROTRn -#undef ROTn -#undef INSERTEDn -#undef LSEXTRACTEDn -#undef MSEXTRACTEDn -#undef LSMASKEDn -#undef LSMASKn -#undef MSMASKEDn -#undef MSMASKn -#undef MASKn -#undef MASKEDn -#undef signedN -#undef unsignedN |