4 files changed, 30 insertions, 18 deletions
diff --git a/src/devices/oprom/x86emu/debug.h b/src/devices/oprom/x86emu/debug.h
index ba180bab40..1b2c3a3f1c 100644
--- a/src/devices/oprom/x86emu/debug.h
+++ b/src/devices/oprom/x86emu/debug.h
@@ -198,6 +198,12 @@
 #define	DB(x)
 #endif
 
+#ifdef DEBUG
+#define X86EMU_DEBUG_ONLY(x) x
+#else
+#define X86EMU_DEBUG_ONLY(x) X86EMU_UNUSED(x)
+#endif
+
 /*-------------------------- Function Prototypes --------------------------*/
 
 #ifdef  __cplusplus
diff --git a/src/devices/oprom/x86emu/fpu.c b/src/devices/oprom/x86emu/fpu.c
index daa2ffa75a..7edebd4244 100644
--- a/src/devices/oprom/x86emu/fpu.c
+++ b/src/devices/oprom/x86emu/fpu.c
@@ -50,6 +50,12 @@ void x86emuOp_esc_coprocess_d8(u8 X86EMU_UNUSED(op1))
     END_OF_INSTR_NO_TRACE();
 }
 
+#ifdef X86EMU_FPU_PRESENT
+#define X86EMU_FPU_ONLY(x) x
+#else
+#define X86EMU_FPU_ONLY(x) X86EMU_UNUSED(x)
+#endif
+
 #ifdef DEBUG
 
 static const char *x86emu_fpu_op_d9_tab[] = {
@@ -95,8 +101,8 @@ static const char *x86emu_fpu_op_d9_tab1[] = {
 void x86emuOp_esc_coprocess_d9(u8 X86EMU_UNUSED(op1))
 {
     int mod, rl, rh;
-    uint destoffset;
-    u8 stkelem;
+    uint X86EMU_FPU_ONLY(destoffset);
+    u8 X86EMU_FPU_ONLY(stkelem);
 
     START_OF_INSTR();
     FETCH_DECODE_MODRM(mod, rh, rl);
@@ -322,8 +328,8 @@ static const char *x86emu_fpu_op_da_tab[] = {
 void x86emuOp_esc_coprocess_da(u8 X86EMU_UNUSED(op1))
 {
     int mod, rl, rh;
-    uint destoffset;
-    u8 stkelem;
+    uint X86EMU_FPU_ONLY(destoffset);
+    u8 X86EMU_FPU_ONLY(stkelem);
 
     START_OF_INSTR();
     FETCH_DECODE_MODRM(mod, rh, rl);
@@ -403,7 +409,7 @@ static const char *x86emu_fpu_op_db_tab[] = {
 void x86emuOp_esc_coprocess_db(u8 X86EMU_UNUSED(op1))
 {
     int mod, rl, rh;
-    uint destoffset;
+    uint X86EMU_FPU_ONLY(destoffset);
 
     START_OF_INSTR();
     FETCH_DECODE_MODRM(mod, rh, rl);
@@ -530,8 +536,8 @@ static const char *x86emu_fpu_op_dc_tab[] = {
 void x86emuOp_esc_coprocess_dc(u8 X86EMU_UNUSED(op1))
 {
     int mod, rl, rh;
-    uint destoffset;
-    u8 stkelem;
+    uint X86EMU_FPU_ONLY(destoffset);
+    u8 X86EMU_FPU_ONLY(stkelem);
 
     START_OF_INSTR();
     FETCH_DECODE_MODRM(mod, rh, rl);
@@ -640,8 +646,8 @@ static const char *x86emu_fpu_op_dd_tab[] = {
 void x86emuOp_esc_coprocess_dd(u8 X86EMU_UNUSED(op1))
 {
     int mod, rl, rh;
-    uint destoffset;
-    u8 stkelem;
+    uint X86EMU_FPU_ONLY(destoffset);
+    u8 X86EMU_FPU_ONLY(stkelem);
 
     START_OF_INSTR();
     FETCH_DECODE_MODRM(mod, rh, rl);
@@ -747,8 +753,8 @@ static const char *x86emu_fpu_op_de_tab[] =
 void x86emuOp_esc_coprocess_de(u8 X86EMU_UNUSED(op1))
 {
     int mod, rl, rh;
-    uint destoffset;
-    u8 stkelem;
+    uint X86EMU_FPU_ONLY(destoffset);
+    u8 X86EMU_FPU_ONLY(stkelem);
 
     START_OF_INSTR();
     FETCH_DECODE_MODRM(mod, rh, rl);
@@ -866,8 +872,8 @@ static const char *x86emu_fpu_op_df_tab[] = {
 void x86emuOp_esc_coprocess_df(u8 X86EMU_UNUSED(op1))
 {
     int mod, rl, rh;
-    uint destoffset;
-    u8 stkelem;
+    uint X86EMU_FPU_ONLY(destoffset);
+    u8 X86EMU_FPU_ONLY(stkelem);
 
     START_OF_INSTR();
     FETCH_DECODE_MODRM(mod, rh, rl);
diff --git a/src/devices/oprom/x86emu/ops.c b/src/devices/oprom/x86emu/ops.c
index c66da95760..70e048dc2f 100644
--- a/src/devices/oprom/x86emu/ops.c
+++ b/src/devices/oprom/x86emu/ops.c
@@ -3562,7 +3562,7 @@ Handles opcode 0xcc
 ****************************************************************************/
 static void x86emuOp_int3(u8 X86EMU_UNUSED(op1))
 {
-    u16 tmp;
+    u16 X86EMU_UNUSED(tmp);
 
     START_OF_INSTR();
     DECODE_PRINTF("INT 3\n");
@@ -3590,7 +3590,7 @@ Handles opcode 0xcd
 ****************************************************************************/
 static void x86emuOp_int_IMM(u8 X86EMU_UNUSED(op1))
 {
-    u16 tmp;
+    u16 X86EMU_UNUSED(tmp);
     u8 intnum;
 
     START_OF_INSTR();
@@ -3620,7 +3620,7 @@ Handles opcode 0xce
 ****************************************************************************/
 static void x86emuOp_into(u8 X86EMU_UNUSED(op1))
 {
-    u16 tmp;
+    u16 X86EMU_UNUSED(tmp);
 
     START_OF_INSTR();
     DECODE_PRINTF("INTO\n");
@@ -4034,7 +4034,7 @@ Handles opcode 0xd5
 ****************************************************************************/
 static void x86emuOp_aad(u8 X86EMU_UNUSED(op1))
 {
-    u8 a;
+    u8 X86EMU_UNUSED(a);
 
     START_OF_INSTR();
     DECODE_PRINTF("AAD\n");
diff --git a/src/devices/oprom/x86emu/ops2.c b/src/devices/oprom/x86emu/ops2.c
index 349a664f50..f559874c73 100644
--- a/src/devices/oprom/x86emu/ops2.c
+++ b/src/devices/oprom/x86emu/ops2.c
@@ -336,7 +336,7 @@ static void x86emuOp2_set_byte(u8 op2)
     int mod, rl, rh;
     uint destoffset;
     u8  *destreg;
-    const char *name = 0;
+    const char *X86EMU_DEBUG_ONLY(name) = 0;
     int cond = 0;
 
     START_OF_INSTR();