diff --git a/sim/mn10300/ChangeLog b/sim/mn10300/ChangeLog
index 4322b9281d..93ee6bbe49 100644
--- a/sim/mn10300/ChangeLog
+++ b/sim/mn10300/ChangeLog
@@ -1,3 +1,15 @@
+Mon May  5 18:07:48 1997  Jeffrey A Law  (law@cygnus.com)
+
+	* mn10300_sim.h (struct _state): Add space for mdrq register.
+	(REG_MDRQ): Define.
+	* simops.c: Don't abort for trap.  Add support for the extended
+	instructions, "getx", "putx", "mulq", "mulqu", "sat16", "sat24",
+	and "bsch".
+
+Thu Apr 24 00:39:51 1997  Doug Evans  <dje@canuck.cygnus.com>
+
+	* configure: Regenerated to track ../common/aclocal.m4 changes.
+
 Fri Apr 18 14:04:04 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 
 	* interp.c (sim_stop): Add stub function.
diff --git a/sim/mn10300/mn10300_sim.h b/sim/mn10300/mn10300_sim.h
index f0913f3db8..2fcb85a78f 100644
--- a/sim/mn10300/mn10300_sim.h
+++ b/sim/mn10300/mn10300_sim.h
@@ -60,8 +60,8 @@ struct simops
 
 struct _state
 {
-  reg_t regs[12];		/* registers, d0-d3, a0-a3, sp, pc, mdr, psw,
-				   lir, lar */
+  reg_t regs[15];		/* registers, d0-d3, a0-a3, sp, pc, mdr, psw,
+				   lir, lar, mdrq */
   uint8 *mem;			/* main memory */
   int exception;
 } State;
@@ -85,6 +85,7 @@ extern struct simops Simops[];
 #define REG_PSW 11
 #define REG_LIR 12
 #define REG_LAR 13
+#define REG_MDRQ 14
 
 #define SEXT3(x)	((((x)&0x7)^(~0x3))+0x4)	
 
diff --git a/sim/mn10300/simops.c b/sim/mn10300/simops.c
index 5f9fc92546..ae3c8aa960 100644
--- a/sim/mn10300/simops.c
+++ b/sim/mn10300/simops.c
@@ -2878,7 +2878,6 @@ void OP_F0FE (insn, extension)
   State.mem[sp+2] = (next_pc & 0xff0000) >> 16;
   State.mem[sp+3] = (next_pc & 0xff000000) >> 24;
   State.regs[REG_PC] = 0x40000010 - 2;
-  abort ();
 }
 
 /* syscall */
@@ -3043,95 +3042,194 @@ void OP_CB (insn, extension)
 {
 }
 
-/* putx */
+/* putx dm,dm */
 void OP_F500 (insn, extension)
      unsigned long insn, extension;
 {
-  abort ();
+  State.regs[REG_MDRQ] = State.regs[REG_D0 + REG0 (insn)];
 }
 
-/* getx */
+/* getx dm,dm */
 void OP_F6F0 (insn, extension)
      unsigned long insn, extension;
 {
-  abort ();
+  int z, n;
+  z = (State.regs[REG_MDRQ] == 0);
+  n = ((State.regs[REG_MDRQ] & 0x80000000) != 0);
+  State.regs[REG_D0 + REG0 (insn)] = State.regs[REG_MDRQ];
+
+  PSW &= ~(PSW_Z | PSW_N | PSW_C | PSW_V);
+  PSW |= (z ? PSW_Z : 0) | (n ? PSW_N : 0);
 }
 
-/* mulq */
+/* mulq dm,dn */
 void OP_F600 (insn, extension)
      unsigned long insn, extension;
 {
-  abort ();
+  unsigned long long temp;
+  int n, z;
+
+  temp = ((signed long)State.regs[REG_D0 + REG0 (insn)]
+          *  (signed long)State.regs[REG_D0 + REG1 (insn)]);
+  State.regs[REG_D0 + REG0 (insn)] = temp & 0xffffffff;
+  State.regs[REG_MDRQ] = (temp & 0xffffffff00000000LL) >> 32;;
+  z = (State.regs[REG_D0 + REG0 (insn)] == 0);
+  n = (State.regs[REG_D0 + REG0 (insn)] & 0x80000000) != 0;
+  PSW &= ~(PSW_Z | PSW_N | PSW_C | PSW_V);
+  PSW |= ((z ? PSW_Z : 0) | (n ? PSW_N : 0));
 }
 
-/* mulq */
+/* mulq imm8,dn */
 void OP_F90000 (insn, extension)
      unsigned long insn, extension;
 {
-  abort ();
+  unsigned long long temp;
+  int n, z;
+
+  temp = ((signed long)State.regs[REG_D0 + REG0_8 (insn)]
+          * (signed long)SEXT8 (insn & 0xff));
+  State.regs[REG_D0 + REG0_8 (insn)] = temp & 0xffffffff;
+  State.regs[REG_MDRQ] = (temp & 0xffffffff00000000LL) >> 32;;
+  z = (State.regs[REG_D0 + REG0_8 (insn)] == 0);
+  n = (State.regs[REG_D0 + REG0_8 (insn)] & 0x80000000) != 0;
+  PSW &= ~(PSW_Z | PSW_N | PSW_C | PSW_V);
+  PSW |= ((z ? PSW_Z : 0) | (n ? PSW_N : 0));
 }
 
-/* mulq */
+/* mulq imm16,dn */
 void OP_FB000000 (insn, extension)
      unsigned long insn, extension;
 {
-  abort ();
+  unsigned long long temp;
+  int n, z;
+
+  temp = ((signed long)State.regs[REG_D0 + REG0_16 (insn)]
+          * (signed long)SEXT16 (insn & 0xffff));
+  State.regs[REG_D0 + REG0_16 (insn)] = temp & 0xffffffff;
+  State.regs[REG_MDRQ] = (temp & 0xffffffff00000000LL) >> 32;;
+  z = (State.regs[REG_D0 + REG0_16 (insn)] == 0);
+  n = (State.regs[REG_D0 + REG0_16 (insn)] & 0x80000000) != 0;
+  PSW &= ~(PSW_Z | PSW_N | PSW_C | PSW_V);
+  PSW |= ((z ? PSW_Z : 0) | (n ? PSW_N : 0));
 }
 
-/* mulq */
+/* mulq imm32,dn */
 void OP_FD000000 (insn, extension)
      unsigned long insn, extension;
 {
-  abort ();
+  unsigned long long temp;
+  int n, z;
+
+  temp = ((signed long)State.regs[REG_D0 + REG0_16 (insn)]
+          * (signed long)(((insn & 0xffff) << 16) + extension));
+  State.regs[REG_D0 + REG0_16 (insn)] = temp & 0xffffffff;
+  State.regs[REG_MDRQ] = (temp & 0xffffffff00000000LL) >> 32;;
+  z = (State.regs[REG_D0 + REG0_16 (insn)] == 0);
+  n = (State.regs[REG_D0 + REG0_16 (insn)] & 0x80000000) != 0;
+  PSW &= ~(PSW_Z | PSW_N | PSW_C | PSW_V);
+  PSW |= ((z ? PSW_Z : 0) | (n ? PSW_N : 0));
 }
 
-/* mulqu */
+/* mulqu dm,dn */
 void OP_F610 (insn, extension)
      unsigned long insn, extension;
 {
-  abort ();
+  unsigned long long temp;
+  int n, z;
+
+  temp = (State.regs[REG_D0 + REG0 (insn)] * State.regs[REG_D0 + REG1 (insn)]);
+  State.regs[REG_D0 + REG0 (insn)] = temp & 0xffffffff;
+  State.regs[REG_MDRQ] = (temp & 0xffffffff00000000LL) >> 32;;
+  z = (State.regs[REG_D0 + REG0 (insn)] == 0);
+  n = (State.regs[REG_D0 + REG0 (insn)] & 0x80000000) != 0;
+  PSW &= ~(PSW_Z | PSW_N | PSW_C | PSW_V);
+  PSW |= ((z ? PSW_Z : 0) | (n ? PSW_N : 0));
 }
 
-/* mulqu */
+/* mulqu imm8,dn */
 void OP_F91400 (insn, extension)
      unsigned long insn, extension;
 {
-  abort ();
+  unsigned long long temp;
+  int n, z;
+
+  temp = (State.regs[REG_D0 + REG0_8 (insn)] * SEXT8 (insn & 0xff));
+  State.regs[REG_D0 + REG0_8 (insn)] = temp & 0xffffffff;
+  State.regs[REG_MDRQ] = (temp & 0xffffffff00000000LL) >> 32;;
+  z = (State.regs[REG_D0 + REG0_8 (insn)] == 0);
+  n = (State.regs[REG_D0 + REG0_8 (insn)] & 0x80000000) != 0;
+  PSW &= ~(PSW_Z | PSW_N | PSW_C | PSW_V);
+  PSW |= ((z ? PSW_Z : 0) | (n ? PSW_N : 0));
 }
 
-/* mulqu */
+/* mulqu imm16,dn */
 void OP_FB140000 (insn, extension)
      unsigned long insn, extension;
 {
-  abort ();
+  unsigned long long temp;
+  int n, z;
+
+  temp = (State.regs[REG_D0 + REG0_16 (insn)] * SEXT16 (insn & 0xffff));
+  State.regs[REG_D0 + REG0_16 (insn)] = temp & 0xffffffff;
+  State.regs[REG_MDRQ] = (temp & 0xffffffff00000000LL) >> 32;;
+  z = (State.regs[REG_D0 + REG0_16 (insn)] == 0);
+  n = (State.regs[REG_D0 + REG0_16 (insn)] & 0x80000000) != 0;
+  PSW &= ~(PSW_Z | PSW_N | PSW_C | PSW_V);
+  PSW |= ((z ? PSW_Z : 0) | (n ? PSW_N : 0));
 }
 
-/* mulqu */
+/* mulqu imm32,dn */
 void OP_FD140000 (insn, extension)
      unsigned long insn, extension;
 {
-  abort ();
+  unsigned long long temp;
+  int n, z;
+
+  temp = (State.regs[REG_D0 + REG0_16 (insn)]
+          * (((insn & 0xffff) << 16) + extension));
+  State.regs[REG_D0 + REG0_16 (insn)] = temp & 0xffffffff;
+  State.regs[REG_MDRQ] = (temp & 0xffffffff00000000LL) >> 32;;
+  z = (State.regs[REG_D0 + REG0_16 (insn)] == 0);
+  n = (State.regs[REG_D0 + REG0_16 (insn)] & 0x80000000) != 0;
+  PSW &= ~(PSW_Z | PSW_N | PSW_C | PSW_V);
+  PSW |= ((z ? PSW_Z : 0) | (n ? PSW_N : 0));
 }
 
-/* sat16 */
+/* sat16 dm,dn */
 void OP_F640 (insn, extension)
      unsigned long insn, extension;
 {
-  abort ();
+  int temp;
+
+  temp = State.regs[REG_D0 + REG1 (insn)];
+  temp = (temp > 0x7fff ? 0x7fff : temp);
+  temp = (temp < -0x8000 ? -0x8000 : temp);
+  State.regs[REG_D0 + REG0 (insn)] = temp;
 }
 
-/* sat24 */
+/* sat24 dm,dn */
 void OP_F650 (insn, extension)
      unsigned long insn, extension;
 {
-  abort ();
+  int temp;
+
+  temp = State.regs[REG_D0 + REG1 (insn)];
+  temp = (temp > 0x7fffff ? 0x7fffff : temp);
+  temp = (temp < -0x800000 ? -0x800000 : temp);
+  State.regs[REG_D0 + REG0 (insn)] = temp;
 }
 
-/* bsch */
+/* bsch dm,dn */
 void OP_F670 (insn, extension)
      unsigned long insn, extension;
 {
-  abort ();
+  int temp, c;
+
+  temp = State.regs[REG_D0 + REG1 (insn)];
+  temp <<= (State.regs[REG_D0 + REG0 (insn)] & 0x1f);
+  c = (temp != 0 ? 1 : 0);
+  PSW &= ~(PSW_C);
+  PSW |= (c ? PSW_C : 0);
 }
 
 /* breakpoint */