From: Anthony Green <green@moxielogic.com>
Date: Thu, 3 Apr 2014 03:55:57 +0000 (-0400)
Subject: Add support for two new moxie sign-extension instructions
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=048ea17465ce5effe702895cd644fa3d9dd94680;p=binutils-gdb.git

Add support for two new moxie sign-extension instructions
---

diff --git a/sim/moxie/ChangeLog b/sim/moxie/ChangeLog
index 691d41ad7df..2831c940197 100644
--- a/sim/moxie/ChangeLog
+++ b/sim/moxie/ChangeLog
@@ -1,3 +1,7 @@
+2014-04-02  Anthony Green  <green@moxielogic.com>
+
+	* interp.c (sim_resume): Add new sign-extend instructions.
+
 2014-03-10  Mike Frysinger  <vapier@gentoo.org>
 
 	* interp.c (sim_do_command): Add const to cmd.
diff --git a/sim/moxie/interp.c b/sim/moxie/interp.c
index a3f238a0066..4362c66bb54 100644
--- a/sim/moxie/interp.c
+++ b/sim/moxie/interp.c
@@ -586,8 +586,24 @@ sim_resume (sd, step, siggnal)
 	      break;
 	    case 0x0f: /* nop */
 	      break;
-	    case 0x10: /* bad */
-	    case 0x11: /* bad */
+	    case 0x10: /* sex.b */
+	      {
+		int a = (inst >> 4) & 0xf;
+		int b = inst & 0xf;
+		signed char bv = cpu.asregs.regs[b];
+		TRACE("sex.b");
+		cpu.asregs.regs[a] = (int) bv;
+	      }
+	      break;
+	    case 0x11: /* sex.s */
+	      {
+		int a = (inst >> 4) & 0xf;
+		int b = inst & 0xf;
+		signed short bv = cpu.asregs.regs[b];
+		TRACE("sex.s");
+		cpu.asregs.regs[a] = (int) bv;
+	      }
+	      break;
 	    case 0x12: /* bad */
 	    case 0x13: /* bad */
 	    case 0x14: /* bad */