Initial creation of sourceware repository

1 files changed, 0 insertions, 399 deletions

diff --git a/sim/ppc/idecode_expression.h b/sim/ppc/idecode_expression.h
deleted file mode 100644
index eb4442b..0000000
--- a/sim/ppc/idecode_expression.h
+++ /dev/null
@@ -1,399 +0,0 @@
-/*  This file is part of the program psim.
-
-    Copyright (C) 1994-1996, Andrew Cagney <cagney@highland.com.au>
-
-    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.
- 
-    */
-
-
-/* 32bit target expressions:
-
-   Each calculation is performed three times using each of the
-   signed64, unsigned64 and long integer types.  The macro ALU_END
-   (in _ALU_RESULT_VAL) then selects which of the three alternative
-   results will be used in the final assignment of the target
-   register.  As this selection is determined at compile time by
-   fields in the instruction (OE, EA, Rc) the compiler has sufficient
-   information to firstly simplify the selection code into a single
-   case and then back anotate the equations and hence eliminate any
-   resulting dead code.  That dead code being the calculations that,
-   as it turned out were not in the end needed.
-
-   64bit arrithemetic is used firstly because it allows the use of
-   gcc's efficient long long operators (typically efficiently output
-   inline) and secondly because the resultant answer will contain in
-   the low 32bits the answer while in the high 32bits is either carry
-   or status information. */
-
-/* 64bit target expressions:
-
-   Unfortunatly 128bit arrithemetic isn't that common.  Consequently
-   the 32/64 bit trick can not be used.  Instead all calculations are
-   required to retain carry/overflow information in separate
-   variables.  Even with this restriction it is still possible for the
-   trick of letting the compiler discard the calculation of unneeded
-   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 ALU_BEGIN(val) \
-{ \
-  natural_word alu_val; \
-  unsigned64 alu_carry_val; \
-  signed64 alu_overflow_val; \
-  ALU_SET(val)
-
-
-/* assign the result to the target register */
-
-#define ALU_END(TARG,CA,OE,Rc) \
-{ /* select the result to use */ \
-  signed_word const alu_result = _ALU_RESULT_VAL(CA,OE,Rc); \
-  /* determine the overflow bit if needed */ \
-  if (OE) { \
-    if ((((unsigned64)(alu_overflow_val & BIT64(0))) \
-	 >> 32) \
-        == (alu_overflow_val & BIT32(0))) \
-      XER &= (~xer_overflow); \
-    else \
-      XER |= (xer_summary_overflow | xer_overflow); \
-  } \
-  /* Update the carry bit if needed */ \
-  if (CA) { \
-    XER = ((XER & ~xer_carry) \
-           | SHUFFLED32((alu_carry_val >> 32), 31, xer_carry_bit)); \
-    /* if (alu_carry_val & BIT64(31)) \
-         XER |= (xer_carry); \
-       else \
-         XER &= (~xer_carry); */ \
-  } \
-  TRACE(trace_alu, (" Result = %ld (0x%lx), XER = %ld\n", \
-                    (long)alu_result, (long)alu_result, (long)XER)); \
-  /* Update the Result Conditions if needed */ \
-  CR0_COMPARE(alu_result, 0, Rc); \
-  /* assign targ same */ \
-  TARG = alu_result; \
-}}
-
-/* select the result from the different options */
-
-#define _ALU_RESULT_VAL(CA,OE,Rc) (WITH_TARGET_WORD_BITSIZE == 64 \
-				   ? alu_val \
-				   : (OE \
-				      ? alu_overflow_val \
-				      : (CA \
-					 ? alu_carry_val \
-					 : alu_val)))
-
-
-/* More basic alu operations */
-#if (WITH_TARGET_WORD_BITSIZE == 64)
-#define ALU_SET(val) \
-do { \
-  alu_val = val; \
-  alu_carry_val = ((unsigned64)alu_val) >> 32; \
-  alu_overflow_val = ((signed64)alu_val) >> 32; \
-} while (0)
-#endif
-#if (WITH_TARGET_WORD_BITSIZE == 32)
-#define ALU_SET(val) \
-do { \
-  alu_val = val; \
-  alu_carry_val = (unsigned32)(alu_val); \
-  alu_overflow_val = (signed32)(alu_val); \
-} while (0)
-#endif
-
-#if (WITH_TARGET_WORD_BITSIZE == 64)
-#define ALU_ADD(val) \
-do { \
-  unsigned64 alu_lo = (UNSIGNED64(alu_val) \
-		       + UNSIGNED64(val)); \
-  signed alu_carry = ((alu_lo & BIT(31)) != 0); \
-  alu_carry_val = (alu_carry_val \
-		   + UNSIGNED64(EXTRACTED(val, 0, 31)) \
-		   + alu_carry); \
-  alu_overflow_val = (alu_overflow_val \
-		      + SIGNED64(EXTRACTED(val, 0, 31)) \
-		      + alu_carry); \
-  alu_val = alu_val + val; \
-} while (0)
-#endif
-#if (WITH_TARGET_WORD_BITSIZE == 32)
-#define ALU_ADD(val) \
-do { \
-  alu_val += val; \
-  alu_carry_val += (unsigned32)(val); \
-  alu_overflow_val += (signed32)(val); \
-} while (0)
-#endif
-
-
-#if (WITH_TARGET_WORD_BITSIZE == 64)
-#define ALU_ADD_CA \
-do { \
-  signed carry = MASKED32(XER, xer_carry_bit, xer_carry_bit) != 0; \
-  ALU_ADD(carry); \
-} while (0)
-#endif
-#if (WITH_TARGET_WORD_BITSIZE == 32)
-#define ALU_ADD_CA \
-do { \
-  signed carry = MASKED32(XER, xer_carry_bit, xer_carry_bit) != 0; \
-  ALU_ADD(carry); \
-} while (0)
-#endif
-
-
-#if 0
-#if (WITH_TARGET_WORD_BITSIZE == 64)
-#endif
-#if (WITH_TARGET_WORD_BITSIZE == 32)
-#define ALU_SUB(val) \
-do { \
-  alu_val -= val; \
-  alu_carry_val -= (unsigned32)(val); \
-  alu_overflow_val -= (signed32)(val); \
-} while (0)
-#endif
-#endif
-
-#if (WITH_TARGET_WORD_BITSIZE == 64)
-#endif
-#if (WITH_TARGET_WORD_BITSIZE == 32)
-#define ALU_OR(val) \
-do { \
-  alu_val |= val; \
-  alu_carry_val = (unsigned32)(alu_val); \
-  alu_overflow_val = (signed32)(alu_val); \
-} while (0)
-#endif
-
-
-#if (WITH_TARGET_WORD_BITSIZE == 64)
-#endif
-#if (WITH_TARGET_WORD_BITSIZE == 32)
-#define ALU_XOR(val) \
-do { \
-  alu_val ^= val; \
-  alu_carry_val = (unsigned32)(alu_val); \
-  alu_overflow_val = (signed32)(alu_val); \
-} while (0)
-#endif
-
-
-#if 0
-#if (WITH_TARGET_WORD_BITSIZE == 64)
-#endif
-#if (WITH_TARGET_WORD_BITSIZE == 32)
-#define ALU_NEGATE \
-do { \
-  alu_val = -alu_val; \
-  alu_carry_val = -alu_carry_val; \
-  alu_overflow_val = -alu_overflow_val; \
-} while(0)
-#endif
-#endif
-
-
-#if (WITH_TARGET_WORD_BITSIZE == 64)
-#endif
-#if (WITH_TARGET_WORD_BITSIZE == 32)
-#define ALU_AND(val) \
-do { \
-  alu_val &= val; \
-  alu_carry_val = (unsigned32)(alu_val); \
-  alu_overflow_val = (signed32)(alu_val); \
-} while (0)
-#endif
-
-
-#if (WITH_TARGET_WORD_BITSIZE == 64)
-#define ALU_NOT \
-do { \
-  signed64 new_alu_val = ~alu_val; \
-  ALU_SET(new_alu_val); \
-} while (0)
-#endif
-#if (WITH_TARGET_WORD_BITSIZE == 32)
-#define ALU_NOT \
-do { \
-  signed new_alu_val = ~alu_val; \
-  ALU_SET(new_alu_val); \
-} while(0)
-#endif
-
-
-/* Macros for updating the condition register */
-
-#define CR1_UPDATE(Rc) \
-do { \
-  if (Rc) { \
-    CR_SET(1, EXTRACTED32(FPSCR, fpscr_fx_bit, fpscr_ox_bit)); \
-  } \
-} while (0)
-
-
-#define _DO_CR_COMPARE(LHS, RHS) \
-(((LHS) < (RHS)) \
- ? cr_i_negative \
- : (((LHS) > (RHS)) \
-    ? cr_i_positive \
-    : cr_i_zero))
-
-#define CR_SET(REG, VAL) MBLIT32(CR, REG*4, REG*4+3, VAL)
-#define CR_SET_XER_SO(REG, VAL) \
-do { \
-  creg new_bits = ((XER & xer_summary_overflow) \
-                   ? (cr_i_summary_overflow | VAL) \
-                   : VAL); \
-  CR_SET(REG, new_bits); \
-} while(0)
-
-#define CR_COMPARE(REG, LHS, RHS) \
-do { \
-  creg new_bits = ((XER & xer_summary_overflow) \
-                   ? (cr_i_summary_overflow | _DO_CR_COMPARE(LHS,RHS)) \
-                   : _DO_CR_COMPARE(LHS,RHS)); \
-  CR_SET(REG, new_bits); \
-} while (0)
-
-#define CR0_COMPARE(LHS, RHS, Rc) \
-do { \
-  if (Rc) { \
-    CR_COMPARE(0, LHS, RHS); \
-    TRACE(trace_alu, \
-	  ("CR=0x%08lx, LHS=%ld, RHS=%ld\n", \
-	   (unsigned long)CR, (long)LHS, (long)RHS)); \
-  } \
-} while (0)
-
-
-
-/* Bring data in from the cold */
-
-#define MEM(SIGN, EA, NR_BYTES) \
-((SIGN##_##NR_BYTES) vm_data_map_read_##NR_BYTES(cpu_data_map(processor), EA, \
-						 processor, cia)) \
-
-#define STORE(EA, NR_BYTES, VAL) \
-do { \
-  vm_data_map_write_##NR_BYTES(cpu_data_map(processor), EA, VAL, \
-			       processor, cia); \
-} while (0)
-
-
-/* some FPSCR update macros */
-
-#define FPSCR_BEGIN \
-FPSCR &= ~fpscr_reserved_20; \
-{ \
-  fpscreg old_fpscr __attribute__((__unused__)) = FPSCR
-
-#define FPSCR_END(Rc) { \
-  CR1_UPDATE(Rc); \
-  if (FPSCR & fpscr_reserved_20) { \
-    FPSCR &= ~fpscr_reserved_20; \
-    program_interrupt(processor, cia, \
-                      floating_point_enabled_program_interrupt); \
-  } \
-}}
-
-#define FPSCR_SET_FPCC(VAL) MBLIT32(FPSCR, fpscr_fpcc_bit, fpscr_fpcc_bit+3, VAL)
-
-/* Handle various exceptions */
-
-#define FPSCR_OR_VX(VAL) \
-do { \
-  FPSCR |= (VAL); \
-  FPSCR |= fpscr_fx; \
-  if (FPSCR & fpscr_ve) \
-    FPSCR |= fpscr_fex | fpscr_reserved_20; \
-  FPSCR |= fpscr_vx; \
-} while (0)
-
-#define FPSCR_SET_OX(COND) \
-do { \
-  if (COND) { \
-    FPSCR |= fpscr_ox; \
-    FPSCR |= fpscr_fx; \
-    if (FPSCR & fpscr_oe) \
-      FPSCR |= fpscr_fex | fpscr_reserved_20; \
-  } \
-  else \
-    FPSCR &= ~fpscr_ox; \
-} while (0)
-
-#define FPSCR_SET_UX(COND) \
-do { \
-  if (COND) { \
-    FPSCR |= fpscr_ux; \
-    FPSCR |= fpscr_fx; \
-    if (FPSCR & fpscr_ue) \
-      FPSCR |= fpscr_fex | fpscr_reserved_20; \
-  } \
-  else \
-    FPSCR &= ~fpscr_ux; \
-} while (0)
-
-#define FPSCR_SET_ZX(COND) \
-do { \
-  if (COND) { \
-    FPSCR |= fpscr_zx; \
-    FPSCR |= fpscr_fx; \
-    if (FPSCR & fpscr_ze) \
-      FPSCR |= fpscr_fex | fpscr_reserved_20; \
-  } \
-  else \
-    FPSCR &= ~fpscr_zx; \
-} while (0)
-
-#define FPSCR_SET_XX(COND) \
-do { \
-  if (COND) { \
-    FPSCR |= fpscr_xx; \
-    FPSCR |= fpscr_fx; \
-    if (FPSCR & fpscr_xe) \
-      FPSCR |= fpscr_fex | fpscr_reserved_20; \
-  } \
-} while (0)
-
-#define FPSCR_SET_FR(COND) \
-do { \
-  if (COND) \
-    FPSCR |= fpscr_fr; \
-  else \
-    FPSCR &= ~fpscr_fr; \
-} while (0)
-
-#define FPSCR_SET_FI(COND) \
-do { \
-  if (COND) \
-    FPSCR |= fpscr_fi; \
-  else \
-    FPSCR &= ~fpscr_fi; \
-} while (0)
-
-#define FPSCR_SET_FPRF(VAL) \
-do { \
-  FPSCR = (FPSCR & ~fpscr_fprf) | (VAL); \
-} while (0)