WebSVN – tendra.SVN – Diff – /branches/tendra5/src/installers/power/common/error.c

+/*
+ * Copyright (c) 2002-2005 The TenDRA Project <http://www.tendra.org/>.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. Neither the name of The TenDRA Project nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific, prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS
+ * IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * $Id$
+ */
 /*
     Copyright (c) 1993 Open Software Foundation, Inc.
     All Rights Reserved
     Permission to use, copy, modify, and distribute this software
     and its documentation for any purpose and without fee is hereby
     granted, provided that the above copyright notice appears in all
     copies and that both the copyright notice and this permission
     notice appear in supporting documentation.
     OSF DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING
     ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
     PARTICULAR PURPOSE.
     IN NO EVENT SHALL OSF BE LIABLE FOR ANY SPECIAL, INDIRECT, OR
     CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
     LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT,
     NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
     WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */
 /*
     		 Crown Copyright (c) 1997
     This TenDRA(r) Computer Program is subject to Copyright
     owned by the United Kingdom Secretary of State for Defence
     acting through the Defence Evaluation and Research Agency
     (DERA).  It is made available to Recipients with a
     royalty-free licence for its use, reproduction, transfer
     to other parties and amendment for any purpose not excluding
     product development provided that any such use et cetera
     shall be deemed to be acceptance of the following conditions:-
         (1) Its Recipients shall ensure that this Notice is
         reproduced upon any copies or amended versions of it;
         (2) Any amended version of it shall be clearly marked to
         show both the nature of and the organisation responsible
         for the relevant amendment or amendments;
         (3) Its onward transfer from a recipient to another
         party shall be deemed to be that party's acceptance of
         these conditions;
         (4) DERA gives no warranty or assurance as to its
         quality or suitability for any purpose and DERA accepts
         no liability whatsoever in relation to any use to which
         it may be put.
 */
 static long nil_access_lab=0;
 static long overflow_lab=0;
 static long stack_overflow_lab=0;
-void init_proc_errors PROTO_S ((exp));
+void init_proc_errors(exp);
-void output_error_labels PROTO_S ((void));
+void output_error_labels(void);
-long get_nil_access_lab PROTO_S ((void));
+long get_nil_access_lab(void);
-long get_overflow_lab PROTO_S ((void));
+long get_overflow_lab(void);
-long get_stack_overflow_lab PROTO_S ((void));
+long get_stack_overflow_lab(void);
-void test_signed PROTO_S ((int,long,long,long));
+void test_signed(int,long,long,long);
-void test_unsigned PROTO_S ((int,long,long));
+void test_unsigned(int,long,long);
-static long trap_label PROTO_S ((exp));
+static long trap_label(exp);
-static void do_exception PROTO_S ((int));
+static void do_exception(int);
-static void call_TDFhandler PROTO_S ((void));
+static void call_TDFhandler(void);
 /* integer error treatments */
-int abs_error_treatment PROTO_S ((exp,space,where));
+int abs_error_treatment(exp,space,where);
-int chvar_error_treatment PROTO_S ((exp,space,where));
+int chvar_error_treatment(exp,space,where);
-void div_error_treatment PROTO_S ((int,int,exp));
+void div_error_treatment(int,int,exp);
-int minus_error_treatment PROTO_S ((exp,space,where));
+int minus_error_treatment(exp,space,where);
-int mult_error_treatment PROTO_S ((exp,space,where));
+int mult_error_treatment(exp,space,where);
-int plus_error_treatment PROTO_S ((exp,space,where));
+int plus_error_treatment(exp,space,where);
-int neg_error_treatment PROTO_S ((exp,space,where));
+int neg_error_treatment(exp,space,where);
-void rem_error_treatment PROTO_S ((int,int,exp));
+void rem_error_treatment(int,int,exp);
-void round_error_treatment PROTO_S ((exp *));
+void round_error_treatment(exp *);
 /* floating error treatments */
-void chfl_error_treatment PROTO_S ((exp,int));
+void chfl_error_treatment(exp,int);
-void do_fmop_error_jump PROTO_S ((exp,int,int));
+void do_fmop_error_jump(exp,int,int);
-void do_fop_error_jump PROTO_S ((exp,int,int,int));
+void do_fop_error_jump(exp,int,int,int);
 /*
  * init_proc_errors: initialises variables used
  */
-void init_proc_errors PROTO_N ((e)) PROTO_T (exp e)
+void init_proc_errors(exp e)
+{
   /* clear the error code labels */
   nil_access_lab = 0;
   overflow_lab = 0;
   stack_overflow_lab = 0;
   if (proc_has_checkstack(e))
+  {
     baseoff b;
     int cr = next_creg();
     long err_lab = get_stack_overflow_lab();
     b = find_tg("__TDFstacklim");
     ld_ins(i_l,b,R_TMP0);
     cmp_rr_ins(i_cmp,R_SP,R_TMP0,cr);
     long_bc_ins(i_blt,cr,err_lab,UNLIKELY_TO_JUMP);
   }
   return;
 }
 /*
  * output_error_labels:
  * Sets up the labels at the end of the proc to handle
  * the three error codes
  */
-void output_error_labels PROTO_Z ()
+void output_error_labels(void)
+{
   if (nil_access_lab != 0)
+  {
     set_label(nil_access_lab);
     do_exception(f_nil_access);
 /*
  * get_nil_access_lab returns the label to jump to
  * when a nil_access error_code is created
  * or sets it if it is un-initialized
  */
-long get_nil_access_lab PROTO_Z ()
+long get_nil_access_lab(void)
+{
   if (nil_access_lab == 0)
+  {
     nil_access_lab = new_label();
+  }
 /*
  * get_overflow_lab returns the label to jump to
  * when an overflow error_code is created
  * or sets it if it is un-initialized
  */
-long get_overflow_lab PROTO_Z ()
+long get_overflow_lab(void)
+{
   if (overflow_lab == 0)
+  {
     overflow_lab = new_label();
+  }
 /*
  * get_stack_overflow_lab returns the label to jump to
  * when a stack_overflow error_code is created
  * or sets it if it is un-initialized
  */
-long get_stack_overflow_lab PROTO_Z ()
+long get_stack_overflow_lab(void)
+{
   if (stack_overflow_lab == 0)
+  {
     stack_overflow_lab = new_label();
+  }
 /*
  * do_trap is called from make_code and branches to
  * the corresponding error label depending on which
  * error code needs to be invoked
  */
-void do_trap PROTO_N ((e)) PROTO_T (exp e )
+void do_trap(exp e)
+{
   int err_code = no(e);
   long err_lab;
   if (err_code == f_nil_access)
+  {
     err_lab = get_nil_access_lab();
+  }
   else if (err_code == f_overflow)
+  {
     fail("do_trap::Unknown error code");
+  }
   uncond_ins(i_b,err_lab);
   clear_all();
   return;
 }
 /*
  * test_signed: tests whether a register lies
  * between two values and
  * jumps to label if it does not
  */
-void test_signed PROTO_N ((r,lower,upper,lab))
-    PROTO_T (int r X long lower X long upper X long lab)
+void test_signed(int r, long lower, long upper, long lab)
+{
   int creg1=next_creg();
   int creg2=next_creg();
   cmp_ri_ins(i_cmp,r,lower,creg1);
   long_bc_ins(i_blt,creg1,lab,UNLIKELY_TO_JUMP);
   cmp_ri_ins(i_cmp,r,upper,creg2);
   long_bc_ins(i_bgt,creg2,lab,UNLIKELY_TO_JUMP);
   return;
 }
 /*
  * test_unsigned: tests whether a register is greater than an unsigned number
  */
-void test_unsigned PROTO_N ((r,maxval,lab)) PROTO_T (int r X long maxval X long lab)
+void test_unsigned(int r, long maxval, long lab)
+{
   int creg=next_creg();
   cmp_ri_ins(i_cmpl,r,maxval,creg);
   long_bc_ins(i_bgt,creg,lab,UNLIKELY_TO_JUMP);
   return;
+}
 /*
  * trap_label: Gives a label for the destination of the error
  */
-static long trap_label PROTO_N ((e)) PROTO_T (exp e)
+static long trap_label(exp e)
 {
   if (NO_ERROR_TREATMENT(e))
+  {
     fail("No error treatment");
     return 0;
+  }
+  {
     /* Error jump to destination */
     return no(son(pt(e)));
+  }
+}
 /*
  * Generates a call to the TDFhandler for exceptions
  */
-static void do_exception PROTO_N ((ex)) PROTO_T (int ex)
+static void do_exception(int ex)
+{
   ld_const_ins(ex,R_FIRST_PARAM);/* __TDFhandler takes as its first parameter, the error code */
   call_TDFhandler();
   return;
+}
-static void call_TDFhandler PROTO_Z ()
+static void call_TDFhandler(void)
+{
   baseoff b;
   b = find_tg("__TDFhandler");
   ld_ins(i_l,b,R_TMP0);
   b.base = R_TMP0;
   b.offset = 0;
   ld_ro_ins(i_l,b,R_TMP0);comment("Jump to error handler");
   /* We don't come back from calling error handler */
   mt_ins(i_mtctr,R_TMP0);
   return;
+}
 /*****************************/
 /*                           */
 /* INTEGER  error treatments */
 /*                           */
 /*****************************/
 /*
  * ABS
  */
-int abs_error_treatment PROTO_N ((e,sp,dest))
+int abs_error_treatment(exp e, space sp, where dest)
-    PROTO_T (exp e X space sp X where dest)
+{
   int r = reg_operand(son(e),sp);
   int destr = regfrmdest(&dest,sp);
   long trap = trap_label(e);
   ans aa;
   int cr;
   space nsp;
   nsp = guardreg(destr,sp);
-  switch(name(sh(e)))
+  switch (name(sh(e)))
+  {
    case ucharhd:
    case uwordhd:
    case ulonghd:
     break;
    case scharhd:
     cr = next_creg();
     cmp_ri_ins(i_cmp,r,0xffffff80,cr);
     long_bc_ins(i_beq,cr,trap,UNLIKELY_TO_JUMP);
     break;
    case swordhd:
     cr = next_creg();
     cmp_ri_ins(i_cmp,r,0xffff8000,cr);
     long_bc_ins(i_beq,cr,trap,UNLIKELY_TO_JUMP);
     break;
    case slonghd:
     cr = next_creg();
     cmp_ri_ins(i_cmp,r,0x80000000,cr);
     long_bc_ins(i_beq,cr,trap,UNLIKELY_TO_JUMP);
     break;
    default:
     fail("Unknown Integer shape for abs_tag\n");
+  }
   rr_ins(i_abs,r,destr);
   setregalt(aa,destr);
   return move(aa,dest,nsp.fixed,1);
+}
 /*
  * CHVAR
  */
-int chvar_error_treatment PROTO_N ((e,sp,dest))
+int chvar_error_treatment(exp e, space sp, where dest)
-    PROTO_T (exp e X space sp X where dest)
+{
   int r = reg_operand(son(e),sp);
   ans aa;
   int new_shpe = name(sh(e));
   long trap = trap_label(e);
   bool sgned = is_signed(sh(son(e)));
   setregalt(aa,r);
   switch(new_shpe)		/* switch on the new shape */
+  {
    case scharhd:
+    {
-      if(sgned)
+      if (sgned)
+      {
 	test_signed(r,-128,127,trap);
+      }
       else
+      {
 	test_unsigned(r,127,trap);
+      }
       break;
+    }
    case ucharhd:
     {
       test_unsigned(r,255,trap);
+    }
     break;
    case swordhd:
+    {
-      if(sgned)
+      if (sgned)
+      {
 	test_signed(r,-0x8000,0x7fff,trap);
+      }
       else
+      {
+    }
     break;
    case uwordhd:
+    {
       test_unsigned(r,0xffff,trap);
     }
     break;
    case slonghd:
-    if(!sgned)
+    if (!sgned)
+    {
       test_unsigned(r,0x7fffffff,trap);
+    }
     break;
    case ulonghd:
-    if(sgned)
+    if (sgned)
+    {
       test_unsigned(r,0x7fffffff,trap);
+    }
     break;
    default:
   return move(aa,dest,sp.fixed,1);
+}
 /*
  * DIV0,DIV1,DIV2
  */
-void div_error_treatment PROTO_N ((l,r,e))
+void div_error_treatment(int l, int r, exp e)
-    PROTO_T (int l X int r X exp e )
+{
   int creg  = next_creg();
   int creg2 = next_creg();
   int creg3 = next_creg();
   long trap = trap_label(e);
-  long lab ;
+  long lab;
   long minus_infinity=0;
   /* First test for division by zero */
   cmp_ri_ins(i_cmp,r,0,creg);
   long_bc_ins(i_beq,creg,trap,UNLIKELY_TO_JUMP);
   /* Test for -(infinity)/-1 for signed*/
   if (is_signed(sh(e)))
+  {
     lab=new_label();
     cmp_ri_ins(i_cmp,r,-1,creg2);
     bc_ins(i_bne,creg2,lab,LIKELY_TO_JUMP);
-    switch(name(sh(e)))
+    switch (name(sh(e)))
+    {
      case slonghd:minus_infinity = 0x80000000;break;
      case swordhd:minus_infinity = 0xffff8000;break;
      case scharhd:minus_infinity = 0xffffff80;break;
      default:fail("Should not get here\n");
 /*
  * MINUS_TAG
  */
-int minus_error_treatment PROTO_N ((e,sp,dest))
+int minus_error_treatment(exp e, space sp, where dest)
-    PROTO_T (exp e X space sp X where dest)
+{
   int lhs_reg=reg_operand(son(e),sp);
   int rhs_reg;
   int destr;
   long trap = trap_label(e);
   ans aa;
   rhs_reg=reg_operand(bro(son(e)),guardreg(lhs_reg,sp));
   destr=regfrmdest(&dest,sp);
   setregalt(aa,destr);
   /* Both sides evaluated lhs in lhs_reg ,rhs in rhs_reg*/
-  switch(name(sh(e)))
+  switch (name(sh(e)))
+  {
    case slonghd:
+    {
       rrr_ins(i_sfo,rhs_reg,lhs_reg,destr);
       mf_ins(i_mcrxr,0);
       rrr_ins(i_sf,rhs_reg,lhs_reg,destr);
       test_signed(destr,-0x8000,0x7fff,trap);
       break;
+    }
    case uwordhd:
     {
       rrr_ins(i_sf,rhs_reg,lhs_reg,destr);
       test_unsigned(destr,0xffff,trap);
       break;
+    }
    case scharhd:
    default:
     fail("NOT integer in minus with o/f");
+  }
   return move(aa, dest, sp.fixed, 1);
+}
 /*
  * MULT_TAG
  */
-int mult_error_treatment PROTO_N ((e,sp,dest)) PROTO_T (exp e X space sp X where dest)
+int mult_error_treatment(exp e, space sp, where dest)
+{
   int lhs_reg=reg_operand(son(e),sp);
   int rhs_reg;
   int destr;
   long trap = trap_label(e);
   rhs_reg=reg_operand(bro(son(e)),nsp);
   nsp=guardreg(rhs_reg,nsp);
   destr=regfrmdest(&dest,sp);
   setregalt(aa,destr);
   /* Both sides evaluated lhs in lhs_reg,rhs in rhs_reg*/
-  switch(name(sh(e)))
+  switch (name(sh(e)))
+  {
    case slonghd:
+    {
       rrr_ins(i_mulso,lhs_reg,rhs_reg,destr);
       /* This should set the SO and OV bits of XER both to 1 if there is
       break;
+    }
    case ulonghd:
+    {
       int creg=next_creg();
-      if(architecture==POWERPC_CODE)
+      if (architecture==POWERPC_CODE)
+      {
 	/* easy since we have mulhwu */
 	rrr_ins(i_mulhwu,lhs_reg,rhs_reg,R_TMP0);
+      }
       else
 	int creg  = next_creg();
 	int creg2 = next_creg();
 	int creg3 = next_creg();
 	nsp = guardreg(lhs_reg,sp);
 	nsp = guardreg(rhs_reg,nsp);
 	tmp_reg=getreg(nsp.fixed);
 	ld_const_ins(0,tmp_reg);
 	cmp_ri_ins(i_cmp,lhs_reg,0,creg);
 	bc_ins(i_bgt,creg,lab,LIKELY_TO_JUMP);
 	mov_rr_ins(lhs_reg,tmp_reg);comment(NIL);
 	rir_ins(i_sl,tmp_reg,1,tmp_reg);
 	rrr_ins(i_mul,lhs_reg,rhs_reg,R_TMP0);
 	rrr_ins(i_a,R_TMP0,tmp_reg,tmp_reg);
 	cmp_ri_ins(i_cmp,tmp_reg,0,creg3);
 	long_bc_ins(i_bne,creg3,trap,UNLIKELY_TO_JUMP);
+      }
       cmp_ri_ins(i_cmp,R_TMP0,0,creg);
       long_bc_ins(i_bne,creg,trap,UNLIKELY_TO_JUMP);
       rrr_ins(i_muls,lhs_reg,rhs_reg,destr);
       /* if the high part of the answer is non-zero branch to trap */
       break;
     }
    case swordhd:
     {
       rrr_ins(i_muls,lhs_reg,rhs_reg,destr);
       test_signed(destr,-0x8000,0x7fff,trap);
       break;
+    }
    case uwordhd:
     {
       rrr_ins(i_muls,lhs_reg,rhs_reg,destr);
       test_unsigned(destr,0xffff,trap);
       break;
+    }
    case scharhd:
     {
       rrr_ins(i_muls,lhs_reg,rhs_reg,destr);
       test_signed(destr, -128, 127, trap);
       break;
     }
    case ucharhd:
+    {
       rrr_ins(i_muls,lhs_reg,rhs_reg,destr);
       test_unsigned(destr, 255, trap);
       break;
+    }
    default:
     fail("NOT integer in mult with o/f");
+  }
   return move(aa, dest, nsp.fixed, 1);
 }
 /*
  * PLUS_TAG
  */
-int plus_error_treatment PROTO_N ((e,sp,dest))
+int plus_error_treatment(exp e, space sp, where dest)
-    PROTO_T (exp e X space sp X where dest )
+{
   int lhs_reg=reg_operand(son(e),sp);
   int rhs_reg;
   int destr;
   long trap = trap_label(e);
   ans aa;
   rhs_reg = reg_operand(bro(son(e)),guardreg(lhs_reg,sp));
   destr=regfrmdest(&dest,sp);
   setregalt(aa,destr);
-  switch(name(sh(e)))
+  switch (name(sh(e)))
+  {
    case slonghd:
+    {
       rrr_ins(i_ao,lhs_reg,rhs_reg,destr);
       mf_ins(i_mcrxr,0);
       long_bc_ins(i_bgt,0,trap,UNLIKELY_TO_JUMP);
       break;
+    }
    case ulonghd:
     {
       rrr_ins(i_ao,lhs_reg,rhs_reg,destr);
       mf_ins(i_mcrxr,0);
       long_bc_ins(i_beq,0,trap,UNLIKELY_TO_JUMP);
       break;
+    }
     fail("NOT integer shape in plus with overflow");
+  }
   return move(aa, dest, sp.fixed, 0);
+}
 #if 0
 /*
  * ROUND
  * This is now done in installl_fns.c
  */
-void round_error_treatment PROTO_N ((e)) PROTO_T (exp *e)
+void round_error_treatment(exp *e)
+{
   /* float --> int */
   exp round = *e;
   exp fl =son(*e);
   shape fl_shpe = sh(fl);
   exp zero1;
   exp zero2;
   exp seq1;
   exp seq2;
   exp cond;
-  ASSERT(shape_size(sh(round))==32);
+  ASSERT(shape_size(sh(round)) ==32);
-  if (name(sh(round))==ulonghd)
+  if (name(sh(round)) ==ulonghd)
+  {
-    lower_bound = me_u3(fl_shpe,me_shint(ulongsh,0)       ,float_tag);
+    lower_bound = me_u3(fl_shpe,me_shint(ulongsh,0)      ,float_tag);
     upper_bound = me_u3(fl_shpe,me_shint(ulongsh,UINT_MAX),float_tag);
   }
   else
   {
     lower_bound = me_u3(fl_shpe,me_shint(slongsh,INT_MIN),float_tag);
     upper_bound = me_u3(fl_shpe,me_shint(slongsh,INT_MAX),float_tag);
+  }
-  switch(round_number(round))
+  switch (round_number(round))
+  {
    case R2ZERO:/* -1+l < f < 1+u */
     {
       lower_adjustment = me_u3(fl_shpe,me_shint(slongsh,-1),float_tag);
       upper_adjustment = me_u3(fl_shpe,me_shint(slongsh,1),float_tag);
       lower_strict = 1;
       upper_strict = 1;
       break;
    case R2NEAR:/* -0.5+l < f < 0.5+u */
+    {
       exp minus_one;
       exp one;
       exp two;
       minus_one = me_u3(fl_shpe,me_shint(slongsh,-1),float_tag);
       two = me_u3(fl_shpe,me_shint(slongsh,2),float_tag);
       lower_adjustment = me_b3(fl_shpe,minus_one,two,fdiv_tag);
       one = me_u3(fl_shpe,me_shint(slongsh,1),float_tag);
       two = me_u3(fl_shpe,me_shint(slongsh,2),float_tag);
       upper_adjustment = me_b3(fl_shpe,one,two,fdiv_tag);
       lower_strict = 1;
       upper_strict = 1;
       break;
+    }
    case R2PINF:/* -1 +l < f =< u */
+    {
       lower_adjustment = me_u3(fl_shpe,me_shint(slongsh,-1),float_tag);
       upper_adjustment = me_u3(fl_shpe,me_shint(slongsh,0),float_tag);
       lower_strict = 1;
       upper_strict = 0;
       break;
+    }
    case R2NINF:/* l =< f < 1+u */
+    {
       lower_adjustment = me_u3(fl_shpe,me_shint(slongsh,0),float_tag);
       upper_adjustment = me_u3(fl_shpe,me_shint(slongsh,1),float_tag);
       lower_strict = 0;
       upper_strict = 1;
       break;
+    }
+  }
   lower = me_b3(fl_shpe,lower_bound,lower_adjustment,fplus_tag);
   upper = me_b3(fl_shpe,upper_bound,upper_adjustment,fplus_tag);
   id = me_startid(fl_shpe,fl,0);/* start ident */
   clear = getexp(f_bottom,nilexp,0,nilexp,nilexp,0,0,clear_tag);
-  if(trap)
+  if (trap)
+  {
     exp t = getexp(f_bottom,nilexp,0,nilexp,nilexp,0,f_overflow,trap_tag);
     lab = me_b3(f_bottom,clear,t,labst_tag);
+  }
   else
+  {
     exp g = getexp(f_bottom,nilexp,0,nilexp,pt(round),0,0,goto_tag);
     lab = me_b3(f_bottom,clear,g,labst_tag);
+  }
   test_lower = me_q1(no_nat_option,
 		     lower_strict?f_greater_than:f_greater_than_or_equal,
 		     &lab,
 		     me_obtain(id),
   seq1 = me_b3(sh(test_upper),zero1,test_upper,seq_tag);
   cond = me_b3(f_top,seq1,lab,cond_tag);
   zero2 = me_u3(f_top,cond,0);
   seq2 = me_b3(fl_shpe,zero2,me_obtain(id),seq_tag);
   id = me_complete_id(id,seq2);
   seterrhandle(round,0);
   setlast(id);
   bro(id) = round;
   son(round) = id;
+}
 #endif
 /*
  * NEG
  */
-int neg_error_treatment PROTO_N ((e,sp,dest))
+int neg_error_treatment(exp e, space sp, where dest)
-    PROTO_T (exp e X space sp X where dest )
+{
   int r = reg_operand(son(e),sp);
   int destr = regfrmdest(&dest,sp);
   long trap = trap_label(e);
   ans aa;
   int cr;
   space nsp;
   nsp = guardreg(destr,sp);
   switch (name(sh(e)))
   {
    case ucharhd:
    case uwordhd:
    case ulonghd:
     rr_ins(i_neg_cr,r,destr);
     long_bc_ins(i_bne,CRF0,trap,LIKELY_TO_JUMP);
   return move(aa,dest,nsp.fixed,1);
+}
 /*
  * REM0,REM1,REM2
  */
-void rem_error_treatment PROTO_N ((l,r,e))
+void rem_error_treatment(int l, int r, exp e)
-    PROTO_T (int l X int r X exp e )
+{
   int creg  = next_creg();
   long trap = trap_label(e);
   cmp_ri_ins(i_cmp,r,0,creg);
   long_bc_ins(i_beq,creg,trap,UNLIKELY_TO_JUMP);
   return;
+}
 /*****************************/
 /*                           */
 /* FLOATING error treatments */
 /*                           */
 /*****************************/
-void chfl_error_treatment PROTO_N ((e,f)) PROTO_T (exp e X int f)
+void chfl_error_treatment(exp e, int f)
+{
   long trap = trap_label(e);
-  ASSERT(name(e)==chfl_tag);
+  ASSERT(name(e) ==chfl_tag);
   rrf_ins(i_frsp_cr,f,f);
   mcrfs_ins(CRF0,0);
   long_bc_ins(i_bso,CRF0,trap,UNLIKELY_TO_JUMP);
   return;
+}
-void do_fmop_error_jump PROTO_N ((e,fs,fd))
+void do_fmop_error_jump(exp e, int fs, int fd)
-    PROTO_T (exp e X int fs X int fd )
+{
   long trap = trap_label(e);
   Instruction_P ins;
-  switch(name(e))
+  switch (name(e))
+  {
    case fabs_tag:ins=i_fabs;break;
    case fneg_tag:ins=i_fneg;break;
    default:fail("Unknown error jump for fmop");break;
+  }
   rrf_ins(ins,fs,fd);
   mcrfs_ins(CRF0,0);
   long_bc_ins(i_bso,CRF0,trap,UNLIKELY_TO_JUMP);
-  if(is_single_precision(sh(e)))
+  if (is_single_precision(sh(e)))
+  {
     rrf_ins(i_frsp,fd,fd);
     mcrfs_ins(CRF0,0);
     long_bc_ins(i_bso,CRF0,trap,UNLIKELY_TO_JUMP);
+  }
   return;
+}
-void do_fop_error_jump PROTO_N ((e,fs1,fs2,fd))
+void do_fop_error_jump(exp e, int fs1, int fs2, int fd)
-    PROTO_T (exp e X int fs1 X int fs2 X int fd )
+{
   long trap = trap_label(e);
   Instruction_P ins;
   switch (name(e))
+  {
    case fplus_tag: ins = i_fa;break;
    case fminus_tag:ins = i_fs;break;
    case fmult_tag: ins = i_fm;break;
    default:fail("Unknown error jump for fop");
+  }
   rrrf_ins(ins,fs1,fs2,fd);
   mcrfs_ins(CRF0,0);
   long_bc_ins(i_bso,CRF0,trap,UNLIKELY_TO_JUMP);
-  switch(name(e))
+  switch (name(e))
+  {
     /* div by 0 */
    case fdiv_tag:
+    {
       mcrfs_ins(CRF0,1);
       long_bc_ins(i_bgt,CRF0,trap,UNLIKELY_TO_JUMP);
+    }
+  }
-  if(is_single_precision(sh(e)))
+  if (is_single_precision(sh(e)))
+  {
     rrf_ins(i_frsp,fd,fd);
     mcrfs_ins(CRF0,0);
     long_bc_ins(i_bso,CRF0,trap,UNLIKELY_TO_JUMP);
+  }

Subversion Repositories tendra.SVN

(root)/branches/tendra5/src/installers/power/common/error.c – Rev 5 → 6