2007-08-21 Andreas Krebbel <krebbel1@de.ibm.com>

	* s390-mkopc.c (struct s390_cond_ext_format): New global struct.
	(s390_cond_ext_format): New global variable.
	(expandConditionalJump): New function.
	(main): Invoke expandConditionalJump for mnemonics containing '*'.
	* s390-opc.txt: Replace mnemonics with conditional
	mask extensions with instructions using the newly introduced '*' tag.

diff --git a/opcodes/ChangeLog b/opcodes/ChangeLog
index 54a4e8d..2697469 100644 (file)
--- a/opcodes/ChangeLog
+++ b/opcodes/ChangeLog
@@ -1,3 +1,12 @@
+2007-08-21  Andreas Krebbel  <krebbel1@de.ibm.com>
+
+       * s390-mkopc.c (struct s390_cond_ext_format): New global struct.
+       (s390_cond_ext_format): New global variable.
+       (expandConditionalJump): New function.
+       (main): Invoke expandConditionalJump for mnemonics containing '*'.      
+       * s390-opc.txt: Replace mnemonics with conditional
+       mask extensions with instructions using the newly introduced '*' tag.
+
 2007-08-17  Alan Modra  <amodra@bigpond.net.au>
 
        * po/Make-in: Add --msgid-bugs-address to xgettext invocation.

diff --git a/opcodes/s390-mkopc.c b/opcodes/s390-mkopc.c
index e6dc305..6461507 100644 (file)
--- a/opcodes/s390-mkopc.c
+++ b/opcodes/s390-mkopc.c
@@ -115,6 +115,123 @@ insertOpcode (char *opcode, char *mnemonic, char *format,
   no_ops++;
 }
 
+struct s390_cond_ext_format
+{
+  char nibble;
+  char extension[4];
+};
+
+#define NUM_COND_EXTENSIONS 20
+
+const struct s390_cond_ext_format s390_cond_extensions[NUM_COND_EXTENSIONS] =
+  {
+    { '1', "o" },    /* jump on overflow / if ones */
+    { '2', "h" },    /* jump on A high */
+    { '2', "p" },    /* jump on plus */
+    { '3', "nle" },  /* jump on not low or equal */
+    { '4', "l" },    /* jump on A low */
+    { '4', "m" },    /* jump on minus / if mixed */
+    { '5', "nhe" },  /* jump on not high or equal */
+    { '6', "lh" },   /* jump on low or high */
+    { '7', "ne" },   /* jump on A not equal B */
+    { '7', "nz" },   /* jump on not zero / if not zeros */
+    { '8', "e" },    /* jump on A equal B */
+    { '8', "z" },    /* jump on zero / if zeros */
+    { '9', "nlh" },  /* jump on not low or high */
+    { 'a', "he" },   /* jump on high or equal */
+    { 'b', "nl" },   /* jump on A not low */
+    { 'b', "nm" },   /* jump on not minus / if not mixed */
+    { 'c', "le" },   /* jump on low or equal */
+    { 'd', "nh" },   /* jump on A not high */
+    { 'd', "np" },   /* jump on not plus */
+    { 'e', "no" },   /* jump on not overflow / if not ones */
+  };
+
+/* As with insertOpcode instructions are added to the sorted opcode
+   array.  Additionally mnemonics containing the '*<number>' tag are
+   expanded to the set of conditional instructions described by
+   s390_cond_extensions with the '*<number>' tag replaced by the
+   respective mnemonic extensions.  */
+
+static void
+expandConditionalJump (char *opcode, char *mnemonic, char *format,
+                      int min_cpu, int mode_bits)
+{
+  char prefix[5];
+  char suffix[5];
+  char number[5];
+  int mask_start, i = 0, star_found = 0, reading_number = 0;
+  int number_p = 0, suffix_p = 0, prefix_p = 0;
+
+  while (mnemonic[i] != '\0')
+    {
+      switch (mnemonic[i])
+       {
+       case '*':
+         if (star_found)
+           goto malformed_mnemonic;
+
+         star_found = 1;
+         reading_number = 1;
+         break;
+
+       case '0': case '1': case '2': case '3': case '4':
+       case '5': case '6': case '7': case '8': case '9':
+         if (!star_found || !reading_number)
+           goto malformed_mnemonic;
+
+         number[number_p++] = mnemonic[i];
+         break;
+
+       default:
+         if (reading_number)
+           {
+             if (!number_p)
+               goto malformed_mnemonic;
+             else
+               reading_number = 0;
+           }
+
+         if (star_found)
+           suffix[suffix_p++] = mnemonic[i];
+         else
+           prefix[prefix_p++] = mnemonic[i];
+       }
+      i++;
+    }
+
+  prefix[prefix_p] = '\0';
+  suffix[suffix_p] = '\0';
+  number[number_p] = '\0';
+
+  if (sscanf (number, "%d", &mask_start) != 1)
+    goto malformed_mnemonic;
+
+  if (mask_start & 3)
+    {
+      fprintf (stderr, "Conditional mask not at nibble boundary in: %s\n",
+              mnemonic);
+      return;
+    }
+
+  mask_start >>= 2;
+
+  for (i = 0; i < NUM_COND_EXTENSIONS; i++)
+    {
+      char new_mnemonic[15];
+
+      strcpy (new_mnemonic, prefix);
+      strcat (new_mnemonic, s390_cond_extensions[i].extension);
+      strcat (new_mnemonic, suffix);
+      opcode[mask_start] = s390_cond_extensions[i].nibble;
+      insertOpcode (opcode, new_mnemonic, format, min_cpu, mode_bits);
+    }
+  return;
+
+ malformed_mnemonic:
+  fprintf (stderr, "Malformed mnemonic: %s\n", mnemonic);
+}
+
 static char file_header[] =
   "/* The opcode table. This file was generated by s390-mkopc.\n\n"
   "   The format of the opcode table is:\n\n"
@@ -225,7 +342,12 @@ main (void)
            if (*str == ',')
              str++;
          } while (*str != 0);
-         insertOpcode (opcode, mnemonic, format, min_cpu, mode_bits);
+
+         if (!strchr (mnemonic, '*'))
+           insertOpcode (opcode, mnemonic, format, min_cpu, mode_bits);
+         else
+           expandConditionalJump (opcode, mnemonic, format,
+                                  min_cpu, mode_bits);
        }
       else
         fprintf (stderr, "Couldn't scan line %s\n", currentLine);

diff --git a/opcodes/s390-opc.txt b/opcodes/s390-opc.txt
index 865e264..9b568a8 100644 (file)
--- a/opcodes/s390-opc.txt
+++ b/opcodes/s390-opc.txt
@@ -262,70 +262,13 @@ b252 msr RRE_RR "multiply single" g5 esa,zarch
 a700 tmh RI_RU "test under mask high" g5 esa,zarch
 a701 tml RI_RU "test under mask low" g5 esa,zarch
 0700 nopr RR_0R "no operation" g5 esa,zarch
-0710 bor RR_0R "branch on overflow / if ones" g5 esa,zarch
-0720 bhr RR_0R "branch on high" g5 esa,zarch
-0720 bpr RR_0R "branch on plus" g5 esa,zarch
-0730 bnler RR_0R "branch on not low or equal" g5 esa,zarch
-0740 blr RR_0R "branch on low" g5 esa,zarch
-0740 bmr RR_0R "branch on minus / if mixed" g5 esa,zarch
-0750 bnher RR_0R "branch on not high or equal" g5 esa,zarch
-0760 blhr RR_0R "branch on low or high" g5 esa,zarch
-0770 bner RR_0R "branch on not equal" g5 esa,zarch
-0770 bnzr RR_0R "branch on not zero / if not zeros" g5 esa,zarch
-0780 ber RR_0R "branch on equal" g5 esa,zarch
-0780 bzr RR_0R "branch on zero / if zeros" g5 esa,zarch
-0790 bnlhr RR_0R "branch on not low or high" g5 esa,zarch
-07a0 bher RR_0R "branch on high or equal" g5 esa,zarch
-07b0 bnlr RR_0R "branch on not low" g5 esa,zarch
-07b0 bnmr RR_0R "branch on not minus / if not mixed" g5 esa,zarch
-07c0 bler RR_0R "brach on low or equal" g5 esa,zarch
-07d0 bnhr RR_0R "branch on not high" g5 esa,zarch
-07d0 bnpr RR_0R "branch on not plus" g5 esa,zarch
-07e0 bnor RR_0R "branch on not overflow / if not ones" g5 esa,zarch
+0700 b*8r RR_0R "conditional branch" g5 esa,zarch
 07f0 br RR_0R "unconditional branch" g5 esa,zarch
 4700 nop RX_0RRD "no operation" g5 esa,zarch
-4710 bo RX_0RRD "branch on overflow / if ones" g5 esa,zarch
-4720 bh RX_0RRD "branch on high" g5 esa,zarch
-4720 bp RX_0RRD "branch on plus" g5 esa,zarch
-4730 bnle RX_0RRD "branch on not low or equal" g5 esa,zarch
-4740 bl RX_0RRD "branch on low" g5 esa,zarch
-4740 bm RX_0RRD "branch on minus / if mixed" g5 esa,zarch
-4750 bnhe RX_0RRD "branch on not high or equal" g5 esa,zarch
-4760 blh RX_0RRD "branch on low or high" g5 esa,zarch
-4770 bne RX_0RRD "branch on not equal" g5 esa,zarch
-4770 bnz RX_0RRD "branch on not zero / if not zeros" g5 esa,zarch
-4780 be RX_0RRD "branch on equal" g5 esa,zarch
-4780 bz RX_0RRD "branch on zero / if zeros" g5 esa,zarch
-4790 bnlh RX_0RRD "branch on not low or high" g5 esa,zarch
-47a0 bhe RX_0RRD "branch on high or equal" g5 esa,zarch
-47b0 bnl RX_0RRD "branch on not low" g5 esa,zarch
-47b0 bnm RX_0RRD "branch on not minus / if not mixed" g5 esa,zarch
-47c0 ble RX_0RRD "branch on low or equal" g5 esa,zarch
-47d0 bnh RX_0RRD "branch on not high" g5 esa,zarch
-47d0 bnp RX_0RRD "branch on not plus" g5 esa,zarch
-47e0 bno RX_0RRD "branch on not overflow / if not ones" g5 esa,zarch
+4700 b*8 RX_0RRD "conditional branch" g5 esa,zarch
 47f0 b RX_0RRD "unconditional branch" g5 esa,zarch
-a714 jo RI_0P "jump on overflow / if ones" g5 esa,zarch
-a724 jh RI_0P "jump on A high" g5 esa,zarch
-a724 jp RI_0P "jump on plus" g5 esa,zarch
-a734 jnle RI_0P "jump on not low or equal" g5 esa,zarch
-a744 jl RI_0P "jump on A low" g5 esa,zarch
-a744 jm RI_0P "jump on minus / if mixed" g5 esa,zarch
-a754 jnhe RI_0P "jump on not high or equal" g5 esa,zarch
-a764 jlh RI_0P "jump on low or high" g5 esa,zarch
-a774 jne RI_0P "jump on A not equal B" g5 esa,zarch
-a774 jnz RI_0P "jump on not zero / if not zeros" g5 esa,zarch
-a784 je RI_0P "jump on A equal B" g5 esa,zarch
-a784 jz RI_0P "jump on zero / if zeros" g5 esa,zarch
-a794 jnlh RI_0P "jump on not low or high" g5 esa,zarch
-a7a4 jhe RI_0P "jump on high or equal" g5 esa,zarch
-a7b4 jnl RI_0P "jump on A not low" g5 esa,zarch
-a7b4 jnm RI_0P "jump on not minus / if not mixed" g5 esa,zarch
-a7c4 jle RI_0P "jump on low or equal" g5 esa,zarch
-a7d4 jnh RI_0P "jump on A not high" g5 esa,zarch
-a7d4 jnp RI_0P "jump on not plus" g5 esa,zarch
-a7e4 jno RI_0P "jump on not overflow / if not ones" g5 esa,zarch
-a7f4 j RI_0P "jump" g5 esa,zarch
+a704 j*8 RI_0P "conditional jump" g5 esa,zarch
+a7f4 j RI_0P "unconditional jump" g5 esa,zarch
 b34a axbr RRE_FF "add extended bfp" g5 esa,zarch
 b31a adbr RRE_FF "add long bfp" g5 esa,zarch
 ed000000001a adb RXE_FRRD "add long bfp" g5 esa,zarch
@@ -520,27 +463,8 @@ eb0000000080 icmh RSE_RURD "insert characters under mask high" z900 zarch
 a702 tmhh RI_RU "test under mask high high" z900 zarch
 a703 tmhl RI_RU "test under mask high low" z900 zarch
 c004 brcl RIL_UP "branch relative on condition long" z900 esa,zarch
-c014 jgo RIL_0P "jump long on overflow / if ones" z900 esa,zarch
-c024 jgh RIL_0P "jump long on high" z900 esa,zarch
-c024 jgp RIL_0P "jump long on plus" z900 esa,zarch
-c034 jgnle RIL_0P "jump long on not low or equal" z900 esa,zarch
-c044 jgl RIL_0P "jump long on low" z900 esa,zarch
-c044 jgm RIL_0P "jump long on minus / if mixed" z900 esa,zarch
-c054 jgnhe RIL_0P "jump long on not high or equal" z900 esa,zarch
-c064 jglh RIL_0P "jump long on low or high" z900 esa,zarch
-c074 jgne RIL_0P "jump long on not equal" z900 esa,zarch
-c074 jgnz RIL_0P "jump long on not zero / if not zeros" z900 esa,zarch
-c084 jge RIL_0P "jump long on equal" z900 esa,zarch
-c084 jgz RIL_0P "jump long on zero / if zeros" z900 esa,zarch
-c094 jgnlh RIL_0P "jump long on not low or high" z900 esa,zarch
-c0a4 jghe RIL_0P "jump long on high or equal" z900 esa,zarch
-c0b4 jgnl RIL_0P "jump long on not low" z900 esa,zarch
-c0b4 jgnm RIL_0P "jump long on not minus / if not mixed" z900 esa,zarch
-c0c4 jgle RIL_0P "jump long on low or equal" z900 esa,zarch
-c0d4 jgnh RIL_0P "jump long on not high" z900 esa,zarch
-c0d4 jgnp RIL_0P "jump long on not plus" z900 esa,zarch
-c0e4 jgno RIL_0P "jump long on not overflow / if not ones" z900 esa,zarch
-c0f4 jg RIL_0P "jump long" z900 esa,zarch
+c004 jg*8 RIL_0P "conditional jump long" z900 esa,zarch
+c0f4 jg RIL_0P "unconditional jump long" z900 esa,zarch
 c005 brasl RIL_RP "branch relative and save long" z900 esa,zarch
 a707 brctg RI_RP "branch relative on count 64" z900 zarch
 a709 lghi RI_RI "load halfword immediate 64" z900 zarch