diff --git a/src/cpu/core_full/op.h b/src/cpu/core_full/op.h
index 29f9bc44..0adb0a64 100644
--- a/src/cpu/core_full/op.h
+++ b/src/cpu/core_full/op.h
@@ -616,6 +616,16 @@ switch (inst.code.op) {
 		LOG(LOG_CPU,LOG_ERROR)("Unhandled FPU ESCAPE %d",inst.code.save);
 		goto nextopcode;
 #endif
+	case O_BOUNDw:
+		{
+			Bit16s bound_min, bound_max;
+			bound_min=LoadMw(inst.rm_eaa);
+			bound_max=LoadMw(inst.rm_eaa+2);
+			if ( (((Bit16s)inst.op1.w) < bound_min) || (((Bit16s)inst.op1.w) > bound_max) ) {
+				EXCEPTION(5);
+			}
+		}
+		break;
 	case 0:
 		break;
 	default:
diff --git a/src/cpu/core_full/optable.h b/src/cpu/core_full/optable.h
index bc6c9908..b74bbc9f 100644
--- a/src/cpu/core_full/optable.h
+++ b/src/cpu/core_full/optable.h
@@ -69,7 +69,7 @@ static OpCode OpCodeTable[1024]={
 
 /* 0x60 - 0x67 */
 {D_PUSHAw	,0			,0		,0		},{D_POPAw	,0			,0		,0		},
-{L_MODRM	,O_BOUNDw	,0		,0		},{L_MODRM	,O_ARPL		,S_Ew	,M_EwGw	},
+{L_MODRM	,O_BOUNDw	,0		,M_Gw	},{L_MODRM	,O_ARPL		,S_Ew	,M_EwGw	},
 {L_PRESEG	,0			,0		,fs		},{L_PRESEG	,0			,0		,gs		},
 {L_PREOP	,0			,0		,0		},{L_PREADD	,0			,0		,0		},
 /* 0x68 - 0x6f */
@@ -455,8 +455,7 @@ static OpCode OpCodeTable[1024]={
 /* 0x288 - 0x28f */
 {L_MODRM		,0		,S_Eb	,M_Gb	},{L_MODRM	,0			,S_Ed	,M_Gd	},
 {L_MODRM		,0		,S_Gb	,M_Eb	},{L_MODRM	,0			,S_Gd	,M_Ed	},
-//TODO Check if the saving a segment in 32bit reg does zero extension?
-{L_MODRM		,0		,S_Ed	,M_SEG	},{L_MODRM	,0			,S_Gd	,M_EA	},
+{L_MODRM		,0		,S_EdMw	,M_SEG	},{L_MODRM	,0			,S_Gd	,M_EA	},
 {L_MODRM		,0		,S_SEGm	,M_Ew	},{L_MODRM	,0			,S_Ed	,M_POPd	},
 
 /* 0x290 - 0x297 */
diff --git a/src/cpu/core_full/save.h b/src/cpu/core_full/save.h
index 0f7f4fe4..6c8f9c55 100644
--- a/src/cpu/core_full/save.h
+++ b/src/cpu/core_full/save.h
@@ -33,6 +33,10 @@ switch (inst.code.save) {
 		if (inst.rm<0xc0) SaveMd(inst.rm_eaa,inst.op1.d);
 		else reg_32(inst.rm_eai)=inst.op1.d;
 		break;	
+	case S_EdMw:		/* Special one 16 to memory, 32 zero extend to reg */
+		if (inst.rm<0xc0) SaveMw(inst.rm_eaa,inst.op1.w);
+		else reg_32(inst.rm_eai)=inst.op1.d;
+		break;
 	case S_Gd:
 		reg_32(inst.rm_index)=inst.op1.d;
 		break;	
diff --git a/src/cpu/core_full/support.h b/src/cpu/core_full/support.h
index b5a40f59..df35dc4f 100644
--- a/src/cpu/core_full/support.h
+++ b/src/cpu/core_full/support.h
@@ -100,7 +100,7 @@ enum {
 	S_C_Eb,
 	S_Eb,S_Gb,S_EbGb,
 	S_Ew,S_Gw,S_EwGw,
-	S_Ed,S_Gd,S_EdGd,
+	S_Ed,S_Gd,S_EdGd,S_EdMw,
 
 	
 	S_REGb,S_REGw,S_REGd,