From: Nick Clifton <nickc@redhat.com>
Date: Mon, 29 Apr 2002 16:50:29 +0000 (+0000)
Subject:  Handle CLASS_IGNORE and ARG_NIM4.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=d1b0a5b4a999c7142824e35606ce4a44adf0ccdc;p=binutils-gdb.git

 Handle CLASS_IGNORE and ARG_NIM4.
---

diff --git a/sim/z8k/ChangeLog b/sim/z8k/ChangeLog
index 64468a129be..8036fe331cf 100644
--- a/sim/z8k/ChangeLog
+++ b/sim/z8k/ChangeLog
@@ -1,3 +1,10 @@
+2002-04-29  Nick Clifton  <nickc@cambridge.redhat.com>
+
+	* writecode.c (lookup_inst): Ignore CLASS_IGNORE.
+        (info_args): Treat CLASS_IGNORE like CLASS_BIT.
+        Handle ARG_NIM4.
+        (info_len_in_words): Handle CLASS_IGNORE and ARG_NIM4.
+
 Tue May 23 21:39:23 2000  Andrew Cagney  <cagney@b1.cygnus.com>
 
 	* configure: Regenerated to track ../common/aclocal.m4 changes.
diff --git a/sim/z8k/writecode.c b/sim/z8k/writecode.c
index 8b4c868edea..b398545c04f 100644
--- a/sim/z8k/writecode.c
+++ b/sim/z8k/writecode.c
@@ -139,6 +139,8 @@ lookup_inst (what)
 		    nibl_matched = 0;
 		  break;
 
+		case CLASS_IGNORE:
+		  break;
 		case CLASS_BIT:
 		  if (datum_value != instr_nibl)
 		    nibl_matched = 0;
@@ -539,6 +541,7 @@ info_args (p)
 	case CLASS_BIT_1OR2:
 	  emit ("register unsigned int imm_src=(<insn_4>& 2)?2:1;\n");
 	  break;
+	case CLASS_IGNORE:
 	case CLASS_BIT:
 	  /* Just ignore these, we've already decoded this bit */
 	  nibs++;
@@ -589,6 +592,10 @@ break;
 		emit ("register unsigned int imm_src=<insn_4>;\n");
 		nibs++;
 		break;
+	      case ARG_NIM4:
+		emit ("register unsigned int imm_src = - <insn_4>;\n");
+		nibs++;
+		break;
 	      case ARG_IMM2:
 		emit ("register unsigned int imm_src=<insn_4> & 0x2;\n");
 		nibs++;
@@ -1938,6 +1945,7 @@ info_len_in_words (o)
     {
       switch (*p & CLASS_MASK)
 	{
+	case CLASS_IGNORE:
 	case CLASS_BIT:
 	case CLASS_REGN0:
 	case CLASS_REG:
@@ -1959,6 +1967,7 @@ info_len_in_words (o)
 	      break;
 	    case ARG_IMM2:
 	    case ARG_IMM4:
+	    case ARG_NIM4:
 	    case ARG_IMM4M1:
 	    case ARG_IMM_1:
 	    case ARG_IMM_2: