+Fri Sep 5 08:39:02 1997 Andrew Cagney <cagney@b1.cygnus.com>
+
+ * sim-alu.h (ALU64_ADD): Use explicit MSEXTRACTED64, do not assume
+ bit endianness.
+ (SIGNED64, UNSIGNED64): Delete.
+ (ALU64_ADD): Don't rely on bit endianness.
+ (ALU64_BEGIN): Define.
+
+ * sim-n-bits.h (MSEXTRACTEDn, LSEXTRACTED): New functions.
+ (EXTRACTEDn): Delete, define as either LSEXTRACTED or MSEXTRACTED.
+
+ * sim-types.h (SIGNED64, UNSIGNED64): New macros, attach relevant
+ suffix - u64, LL - to 64 bit constants.
+
Thu Sep 4 09:27:54 1997 Andrew Cagney <cagney@b1.cygnus.com>
* sim-config.c (sim_config): Add assert for SIM_MAGIC_NUMBER.
values */
-/* Macro's to type cast 32bit constants to 64bits */
-#define SIGNED64(val) ((signed64)(signed32)(val))
-#define UNSIGNED64(val) ((unsigned64)(unsigned32)(val))
-
-
/* Start a section of ALU code */
#define ALU16_BEGIN(VAL) \
signed64 alu_overflow_val; \
ALU32_SET(VAL)
+#define ALU64_BEGIN(VAL) \
+{ \
+ natural64 alu_val; \
+ unsigned64 alu_carry_val; \
+ signed64 alu_overflow_val; \
+ ALU64_SET(VAL)
+
+
#define ALU_BEGIN(VAL) XCONCAT3(ALU,WITH_TARGET_WORD_BITSIZE,_BEGIN)(VAL)
/* More basic alu operations */
#define ALU64_ADD(VAL) \
do { \
- unsigned64 alu_lo = (UNSIGNED64(alu_val) \
- + UNSIGNED64(VAL)); \
- signed alu_carry = ((alu_lo & BIT(31)) != 0); \
+ unsigned64 val = (VAL); \
+ unsigned64 alu_lo = alu_val + val); \
+ signed alu_carry = ((alu_lo & LSBIT64 (31)) != 0); \
alu_carry_val = (alu_carry_val \
- + UNSIGNED64(EXTRACTED(val, 0, 31)) \
+ + MSEXTRACTED64 (val, 0, 31) \
+ alu_carry); \
alu_overflow_val = (alu_overflow_val \
- + SIGNED64(EXTRACTED(val, 0, 31)) \
+ + MSEXTRACTED64 (val, 0, 31) \
+ alu_carry); \
alu_val = alu_val + val; \
} while (0)
architectures ignoring the first 32bits leaving bit 32 as the most
significant.
+ NB: Use EXTRACTED, MSEXTRACTED and LSEXTRACTED as a guideline for
+ naming. LSMASK and LSMASKED are wrong.
+
BIT*(POS): Constant with just 1 bit set.
LSBIT*(OFFSET): Constant with just 1 bit set - LS bit is zero.
also right shifts the masked value so that bit LAST becomes the
least significant (right most).
+ LSEXTRACTED*(VALUE, FIRST, LAST): Same as extracted - LS bit is
+ zero.
+
+ MSEXTRACTED*(VALUE, FIRST, LAST): Same as extracted - MS bit is
+ zero.
+
SHUFFLED**(VALUE, OLD, NEW): Mask then move a single bit from OLD
new NEW.
/* extract the required bits aligning them with the lsb */
-INLINE_SIM_BITS(unsigned16) EXTRACTED16 (unsigned16 val, unsigned start, unsigned stop);
-INLINE_SIM_BITS(unsigned32) EXTRACTED32 (unsigned32 val, unsigned start, unsigned stop);
-INLINE_SIM_BITS(unsigned64) EXTRACTED64 (unsigned64 val, unsigned start, unsigned stop);
+INLINE_SIM_BITS(unsigned16) LSEXTRACTED16 (unsigned16 val, unsigned start, unsigned stop);
+INLINE_SIM_BITS(unsigned32) LSEXTRACTED32 (unsigned32 val, unsigned start, unsigned stop);
+INLINE_SIM_BITS(unsigned64) LSEXTRACTED64 (unsigned64 val, unsigned start, unsigned stop);
+
+INLINE_SIM_BITS(unsigned16) MSEXTRACTED16 (unsigned16 val, unsigned start, unsigned stop);
+INLINE_SIM_BITS(unsigned32) MSEXTRACTED32 (unsigned32 val, unsigned start, unsigned stop);
+INLINE_SIM_BITS(unsigned64) MSEXTRACTED64 (unsigned64 val, unsigned start, unsigned stop);
+
+#if (WITH_TARGET_WORD_MSB == 0)
+#define EXTRACTED16 MSEXTRACTED32
+#define EXTRACTED32 MSEXTRACTED32
+#define EXTRACTED64 MSEXTRACTED32
+#else
+#define EXTRACTED16 LSEXTRACTED32
+#define EXTRACTED32 LSEXTRACTED32
+#define EXTRACTED64 LSEXTRACTED32
+#endif
+
+
+
INLINE_SIM_BITS(unsigned_word) EXTRACTED (unsigned_word val, unsigned start, unsigned stop);
entry = &(*entry)->next)
{
if ((*entry)->base == addr
- && (*entry)->level == attach
+ && (*entry)->level == (int) attach
&& (*entry)->space == space)
{
sim_core_mapping *dead = (*entry);
#define LSMASKn XCONCAT2(LSMASK,N)
#define MSMASKEDn XCONCAT2(MSMASKED,N)
#define MSMASKn XCONCAT2(MSMASK,N)
-#define EXTRACTEDn XCONCAT2(EXTRACTED,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)
return (word & MSMASKn (nr_bits));
}
-/* TAGS: EXTRACTED16 EXTRACTED32 EXTRACTED64 */
+/* TAGS: LSEXTRACTED16 LSEXTRACTED32 LSEXTRACTED64 */
INLINE_SIM_BITS\
(unsignedN)
-EXTRACTEDn (unsignedN val,
- unsigned start,
- unsigned stop)
+LSEXTRACTEDn (unsignedN val,
+ unsigned start,
+ unsigned stop)
{
- val <<= _MSB_SHIFT (N, start);
- val >>= (_MSB_SHIFT (N, start) + _LSB_SHIFT (N, 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,
+ unsigned start,
+ unsigned stop)
+{
+ val <<= (start); /* drop high bits */
+ val >>= (start) + (N - 1 - stop); /* drop low bits */
return val;
}
#undef ROTRn
#undef ROTn
#undef INSERTEDn
-#undef EXTRACTEDn
+#undef LSEXTRACTEDn
+#undef MSEXTRACTEDn
#undef LSMASKEDn
#undef LSMASKn
#undef MSMASKEDn
--- /dev/null
+/* This file is part of psim (model of the PowerPC(tm) architecture)
+
+ Copyright (C) 1994-1995, Andrew Cagney <cagney@highland.com.au>
+ Copyright (C) 1997, Free Software Foundation, Inc.
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public License
+ as published by the Free Software Foundation; either version 2 of
+ the License, or (at your option) any later version.
+
+ This library 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
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with this library; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+ --
+
+ PowerPC is a trademark of International Business Machines Corporation. */
+
+
+/* Basic type sizes for the PowerPC */
+
+#ifndef _SIM_TYPES_H_
+#define _SIM_TYPES_H_
+
+
+
+
+/* INTEGER QUANTITIES:
+
+ TYPES:
+
+ natural* sign determined by host
+ signed* signed type of the given size
+ unsigned* The corresponding insigned type
+
+ SIZES
+
+ *NN Size based on the number of bits
+ *_NN Size according to the number of bytes
+ *_word Size based on the target architecture's word
+ word size (32/64 bits)
+ *_cell Size based on the target architecture's
+ IEEE 1275 cell size (almost always 32 bits)
+
+*/
+
+
+/* bit based */
+typedef char natural8;
+typedef short natural16;
+typedef long natural32;
+
+typedef signed char signed8;
+typedef signed short signed16;
+typedef signed long signed32;
+
+typedef unsigned char unsigned8;
+typedef unsigned short unsigned16;
+typedef unsigned long unsigned32;
+
+#if defined __GNUC__ || defined _WIN32
+#ifdef __GNUC__
+
+typedef long long natural64;
+typedef signed long long signed64;
+typedef unsigned long long unsigned64;
+
+#define UNSIGNED64(X) (X##ULL)
+#define SIGNED64(X) (X##LL)
+
+#define UNSIGNED32(X) (X##UL)
+#define SIGNED32(X) (X##L)
+
+#else /* _WIN32 */
+
+typedef __int64 natural64;
+typedef signed __int64 signed64;
+typedef unsigned __int64 unsigned64;
+
+#define UNSIGNED64(X) (X##ui64)
+#define SIGNED64(X) (X##i64)
+
+#define SIGNED32(X) (X)
+#define UNSIGNED32(X) (X)
+
+#endif /* _WIN32 */
+#else /* Not GNUC or WIN32 */
+/* Not supported */
+#endif
+
+/* byte based */
+typedef natural8 natural_1;
+typedef natural16 natural_2;
+typedef natural32 natural_4;
+typedef natural64 natural_8;
+
+typedef signed8 signed_1;
+typedef signed16 signed_2;
+typedef signed32 signed_4;
+typedef signed64 signed_8;
+
+typedef unsigned8 unsigned_1;
+typedef unsigned16 unsigned_2;
+typedef unsigned32 unsigned_4;
+typedef unsigned64 unsigned_8;
+
+
+/* for general work, the following are defined */
+/* unsigned: >= 32 bits */
+/* signed: >= 32 bits */
+/* long: >= 32 bits, sign undefined */
+/* int: small indicator */
+
+/* target architecture based */
+#if (WITH_TARGET_WORD_BITSIZE == 64)
+typedef natural64 natural_word;
+typedef unsigned64 unsigned_word;
+typedef signed64 signed_word;
+#else
+typedef natural32 natural_word;
+typedef unsigned32 unsigned_word;
+typedef signed32 signed_word;
+#endif
+
+
+/* Other instructions */
+typedef unsigned32 address_word;
+
+/* IEEE 1275 cell size - only support 32bit mode at present */
+typedef natural32 natural_cell;
+typedef unsigned32 unsigned_cell;
+typedef signed32 signed_cell;
+
+#endif /* _SIM_TYPES_H_ */
+Fri Sep 5 10:21:48 1997 Andrew Cagney <cagney@b1.cygnus.com>
+
+ * Makefile.in (SIM_OBJS): Add sim-memopt.o module.
+
Thu Sep 4 10:30:02 1997 Andrew Cagney <cagney@b1.cygnus.com>
* sim-if.c (sim_open): Pass zero modulo arg to sim_core_attach.
projects / external / binutils.git / commitdiff