diff --git a/src/emu/cpu/arm7/arm7dasm.c b/src/emu/cpu/arm7/arm7dasm.c
index dbecb52e2fb..15520c8c69d 100644
--- a/src/emu/cpu/arm7/arm7dasm.c
+++ b/src/emu/cpu/arm7/arm7dasm.c
@@ -231,6 +231,10 @@ UINT32 arm7_disasm( char *pBuf, UINT32 pc, UINT32 opcode )
 		if ((opcode & 0x0f) == 14)
 			dasmflags = DASMFLAG_STEP_OUT;
 	}
+    	else if ((opcode & 0x0ff000f0) == 0x01600010)	// CLZ - v5
+	{
+		pBuf += sprintf(pBuf, "CLZ R%d, R%d", (opcode>>12)&0xf, opcode&0xf);
+	}
 	else if( (opcode&0x0e000000)==0 && (opcode&0x80) && (opcode&0x10) )	//bits 27-25 == 000, bit 7=1, bit 4=1
 	{
 		/* multiply or swap or half word data transfer */
diff --git a/src/emu/cpu/arm7/arm7exec.c b/src/emu/cpu/arm7/arm7exec.c
index 29db2543660..0b023f09f25 100644
--- a/src/emu/cpu/arm7/arm7exec.c
+++ b/src/emu/cpu/arm7/arm7exec.c
@@ -1248,6 +1248,15 @@
                             R15--;
                         }
                     }
+		    else if ((insn & 0x0ff000f0) == 0x01600010)	// CLZ - v5
+		    {
+		    	UINT32 rm = insn&0xf;
+			UINT32 rd = (insn>>12)&0xf;
+
+			SET_REGISTER(cpustate, rd, count_leading_zeros(GET_REGISTER(cpustate, rm)));
+
+			R15 += 4;
+		    }
                     else
                     /* Multiply OR Swap OR Half Word Data Transfer */
                     if ((insn & 0x0e000000) == 0 && (insn & 0x80) && (insn & 0x10))  // bits 27-25=000 bit 7=1 bit 4=1