diff --git a/src/dsp.c b/src/dsp.c
index b4a5bf3..0673be3 100644
--- a/src/dsp.c
+++ b/src/dsp.c
@@ -394,13 +394,9 @@ uint8_t DSPReadByte(uint32_t offset, uint32_t who/*=UNKNOWN*/)
 
 uint16_t DSPReadWord(uint32_t offset, uint32_t who/*=UNKNOWN*/)
 {
-#ifdef USE_STRUCTS
     Offset offsett;
     offsett.LONG = offset;
     offset = offsett.Members.offset;
-#else
-    offset &= 0xFFFFFFFE;
-#endif
 	if (offset >= DSP_WORK_RAM_BASE && offset <= DSP_WORK_RAM_BASE+0x1FFF)
 	{
 		offset -= DSP_WORK_RAM_BASE;
@@ -408,7 +404,6 @@ uint16_t DSPReadWord(uint32_t offset, uint32_t who/*=UNKNOWN*/)
     }
 	else if ((offset>=DSP_CONTROL_RAM_BASE)&&(offset<DSP_CONTROL_RAM_BASE+0x20))
 	{
-#ifdef USE_STRUCTS
         DSPLong data;
         data.LONG = DSPReadLong(offset & 0xFFFFFFFC, who);
         
@@ -417,13 +412,6 @@ uint16_t DSPReadWord(uint32_t offset, uint32_t who/*=UNKNOWN*/)
         } else {
             return data.Data.UWORD;
         }
-#else
-        uint32_t data = DSPReadLong(offset & 0xFFFFFFFC, who);
-        
-        if (offset & 0x03)
-            return data & 0xFFFF;
-        return data >> 16;
-#endif
 	}
 
 	return JaguarReadWord(offset, who);
@@ -868,7 +856,6 @@ INLINE void DSPExec(int32_t cycles)
 			IMASKCleared = false;
 		}
 
-#ifdef USE_STRUCTS
         OpCode opcode;
         opcode.WORD = DSPReadWord(dsp_pc, DSP);
         uint8_t index = opcode.Codes.index;
@@ -878,18 +865,8 @@ INLINE void DSPExec(int32_t cycles)
         dsp_opcode_second_parameter = sp;
         dsp_pc += 2;
         dsp_opcode[index]();
-#else
-        uint16_t opcode;
-        uint32_t index;
-        opcode = DSPReadWord(dsp_pc, DSP);
-        index = opcode >> 10;
-        dsp_opcode_first_parameter = (opcode >> 5) & 0x1F;
-        dsp_opcode_second_parameter = opcode & 0x1F;
-        dsp_pc += 2;
-        dsp_opcode[index]();
-        dsp_opcode_use[index]++;
-#endif
-		cycles -= dsp_opcode_cycles[index];
+
+        cycles -= dsp_opcode_cycles[index];
 	}
 
 	dsp_in_exec--;
diff --git a/src/gpu.c b/src/gpu.c
index edd347f..17e5e07 100644
--- a/src/gpu.c
+++ b/src/gpu.c
@@ -301,16 +301,11 @@ INLINE uint16_t GPUReadWord(uint32_t offset, uint32_t who/*=UNKNOWN*/)
 	if ((offset >= GPU_WORK_RAM_BASE) && (offset < GPU_WORK_RAM_BASE+0x1000))
 	{
         offset &= 0xFFF;
-#ifdef USE_STRUCTS
+
         OpCode data;
         data.Bytes.UBYTE = (uint16_t)gpu_ram_8[offset];
         data.Bytes.LBYTE = (uint16_t)gpu_ram_8[offset+1];
         return data.WORD;
-#else
-        uint16_t data;
-		data    = ((uint16_t)gpu_ram_8[offset] << 8) | (uint16_t)gpu_ram_8[offset+1];
-		return data;
-#endif
 	}
 	else if ((offset >= GPU_CONTROL_RAM_BASE) && (offset < GPU_CONTROL_RAM_BASE+0x20))
 	{
@@ -1572,7 +1567,6 @@ INLINE static void gpu_opcode_abs(void)
 }
 
 
-#ifdef USE_STRUCTS
 INLINE static void gpu_opcode_div(void)	// RN / RM
 {
     
@@ -1603,33 +1597,6 @@ INLINE static void gpu_opcode_div(void)	// RN / RM
    RN = q.WORD;
    gpu_remain = r.WORD;
 }
-#else
-INLINE static void gpu_opcode_div(void)    // RN / RM
-{
-    unsigned i;
-    // Real algorithm, courtesy of SCPCD: NYAN!
-    uint32_t q = RN;
-    uint32_t r = 0;
-    
-    // If 16.16 division, stuff top 16 bits of RN into remainder and put the
-    // bottom 16 of RN in top 16 of quotient
-    if (gpu_div_control & 0x01)
-        q <<= 16, r = RN >> 16;
-    
-    for(i=0; i<32; i++)
-    {
-        uint32_t sign = r & 0x80000000;
-        r = (r << 1) | ((q >> 31) & 0x01);
-        r += (sign ? RM : -RM);
-        q = (q << 1) | (((~r) >> 31) & 0x01);
-    }
-    
-    RN = q;
-    gpu_remain = r;
-    
-}
-#endif
-
 
 INLINE static void gpu_opcode_imultn(void)
 {
diff --git a/src/vjag_memory.h b/src/vjag_memory.h
index 9246f52..2e711f5 100644
--- a/src/vjag_memory.h
+++ b/src/vjag_memory.h
@@ -170,7 +170,6 @@ typedef union GPUControl {
 
 } GPUControl;
     
-#ifdef USE_STRUCTS
 #pragma pack(push, 1)
     typedef union OpCode {
         uint16_t WORD;
@@ -198,9 +197,7 @@ typedef union GPUControl {
 #pragma pack(pop)
     
     typedef OpCode U16Union;
-#endif //USE_STRUCTS
 
-#ifdef USE_STRUCTS
 typedef union Offset {
     uint32_t LONG;
 #pragma pack(push, 1)
@@ -215,7 +212,6 @@ typedef union Offset {
     } Members;
 #pragma pack(pop)
 } Offset;
-#endif //USE_STRUCTS
     
 typedef union DSPLong {
     uint32_t LONG;