diff --git a/src/platform/3do/ccbMap3.s b/src/platform/3do/ccbMap3.s
new file mode 100644
index 0000000..28daf2a
--- /dev/null
+++ b/src/platform/3do/ccbMap3.s
@@ -0,0 +1,73 @@
+    AREA |C$$code|, CODE, READONLY
+|x$codeseg|
+
+    EXPORT ccbMap3_asm
+
+ccbMap3_asm
+
+face     RN r0
+vp0      RN r1
+vp1      RN r2
+vp2      RN r3
+
+vx0      RN vp0
+vy0      RN vp1
+xpos     RN vx0
+ypos     RN vy0
+
+vx1      RN vp2
+vy1      RN r4
+hdx0     RN vx1
+hdy0     RN vy1
+
+vx2      RN r5
+vy2      RN r6
+vdx0     RN vx2
+vdy0     RN vy2
+
+ws       RN r12
+hs       RN lr
+shift    RN hs
+
+hddx     RN ws
+hddy     RN hs
+
+FRAME_WIDTH  EQU 320
+FRAME_HEIGHT EQU 240
+
+        stmfd sp!, {r4-r6, lr}
+
+        add face, face, #16     ; offset to ccb_XPos
+        ldr shift, [sp, #16]    ; skip 4 regs stored on the stack
+        ldmia vp2, {vx2, vy2}
+        ldmia vp1, {vx1, vy1}
+        ldmia vp0, {vx0, vy0}
+
+        and ws, shift, #0xFF
+        mov hs, shift, lsr #8
+
+        sub hdx0, vx1, vx0
+        sub hdy0, vy1, vy0
+        mov hdx0, hdx0, lsl ws
+        mov hdy0, hdy0, lsl ws
+
+        sub vdx0, vx2, vx0
+        sub vdy0, vy2, vy0
+        mov vdx0, vdx0, lsl hs
+        mov vdy0, vdy0, lsl hs
+
+        rsb hs, hs, #16
+        mov hddx, hdx0, asr hs
+        mov hddy, hdy0, asr hs
+        rsb hddx, hddx, #0
+        rsb hddy, hddy, #0
+
+        mov xpos, vx0, lsl #16
+        mov ypos, vy0, lsl #16
+        add xpos, xpos, #(FRAME_WIDTH << 15)
+        add ypos, ypos, #(FRAME_HEIGHT << 15)
+
+        stmia face, {xpos, ypos, hdx0, hdy0, vdx0, vdy0, hddx, hddy}
+
+        ldmfd sp!, {r4-r6, pc}
+    END
diff --git a/src/platform/3do/ccbMap4.s b/src/platform/3do/ccbMap4.s
new file mode 100644
index 0000000..ff4a207
--- /dev/null
+++ b/src/platform/3do/ccbMap4.s
@@ -0,0 +1,85 @@
+    AREA |C$$code|, CODE, READONLY
+|x$codeseg|
+
+    EXPORT ccbMap4_asm
+
+ccbMap4_asm
+
+face     RN r0
+vp0      RN r1
+vp1      RN r2
+vp2      RN r3
+vp3      RN r4
+
+vx0      RN vp0
+vy0      RN vp1
+xpos     RN vx0
+ypos     RN vy0
+
+vx1      RN vp2
+vy1      RN vp3
+hdx0     RN vx1
+hdy0     RN vy1
+
+vx3      RN r5
+vy3      RN r6
+vdx0     RN vx3
+vdy0     RN vy3
+
+vx2      RN r7
+vy2      RN r8
+hdx1     RN vx2
+hdy1     RN vy2
+hddx     RN hdx1
+hddy     RN hdy1
+
+ws       RN r12
+hs       RN lr
+shift    RN hs
+
+FRAME_WIDTH  EQU 320
+FRAME_HEIGHT EQU 240
+
+        stmfd sp!, {r4-r8, lr}
+
+        add face, face, #16     ; offset to ccb_XPos
+        add shift, sp, #24      ; skip 6 regs stored on the stack
+        ldmia shift, {vp3, shift}
+        ldmia vp3, {vx3, vy3}
+        ldmia vp2, {vx2, vy2}
+        ldmia vp1, {vx1, vy1}
+        ldmia vp0, {vx0, vy0}
+
+        and ws, shift, #0xFF
+        mov hs, shift, lsr #8
+
+        sub hdx1, vx2, vx3
+        sub hdy1, vy2, vy3
+        mov hdx1, hdx1, lsl ws
+        mov hdy1, hdy1, lsl ws
+
+        sub hdx0, vx1, vx0
+        sub hdy0, vy1, vy0
+        mov hdx0, hdx0, lsl ws
+        mov hdy0, hdy0, lsl ws
+
+        sub vdx0, vx3, vx0
+        sub vdy0, vy3, vy0
+        mov vdx0, vdx0, lsl hs
+        mov vdy0, vdy0, lsl hs
+
+        rsb hs, hs, #16
+        sub hddx, hdx1, hdx0
+        sub hddy, hdy1, hdy0
+        mov hddx, hddx, asr hs
+        mov hddy, hddy, asr hs
+
+        mov xpos, vx0, lsl #16
+        mov ypos, vy0, lsl #16
+        add xpos, xpos, #(FRAME_WIDTH << 15)
+        add ypos, ypos, #(FRAME_HEIGHT << 15)
+
+        stmia face, {xpos, ypos, hdx0, hdy0, vdx0, vdy0, hddx, hddy}
+
+        ldmfd sp!, {r4-r8, pc}
+    END
diff --git a/src/platform/3do/render_cel.cpp b/src/platform/3do/render_cel.cpp
index 5ddcb85..d0f6bff 100644
--- a/src/platform/3do/render_cel.cpp
+++ b/src/platform/3do/render_cel.cpp
@@ -185,14 +185,22 @@ enum ClipFlags {
     #define unpackRoom unpackRoom_asm
     #define unpackMesh unpackMesh_asm
     #define projectVertices projectVertices_asm
+    #define ccbMap4 ccbMap4_asm
+    #define ccbMap3 ccbMap3_asm
 
-    extern "C" void unpackRoom_asm(const RoomVertex* vertices, int32 vCount);
-    extern "C" void unpackMesh_asm(const MeshVertex* vertices, int32 vCount);
-    extern "C" void projectVertices_asm(int32 vCount);
+    extern "C" {
+        void unpackRoom_asm(const RoomVertex* vertices, int32 vCount);
+        void unpackMesh_asm(const MeshVertex* vertices, int32 vCount);
+        void projectVertices_asm(int32 vCount);
+        void ccbMap4_asm(Face* f, const Vertex* v0, const Vertex* v1, const Vertex* v2, const Vertex* v3, uint32 shift);
+        void ccbMap3_asm(Face* f, const Vertex* v0, const Vertex* v1, const Vertex* v2, uint32 shift);
+    }
 #else
     #define unpackRoom unpackRoom_c
     #define unpackMesh unpackMesh_c
     #define projectVertices projectVertices_c
+    #define ccbMap4 ccbMap4_c
+    #define ccbMap3 ccbMap3_c
 
 void unpackRoom_c(const RoomVertex* vertices, int32 vCount)
 {
@@ -296,6 +304,79 @@ void projectVertices_c(int32 vCount)
         v++;
     } while (v < last);
 }
+
+void ccbMap4_c(Face* f, const Vertex* v0, const Vertex* v1, const Vertex* v2, const Vertex* v3, uint32 shift)
+{
+    int32 x1 = v1->x;
+    int32 y1 = v1->y;
+    int32 x3 = v3->x;
+    int32 y3 = v3->y;
+    int32 x2 = v2->x;
+    int32 y2 = v2->y;
+    int32 x0 = v0->x;
+    int32 y0 = v0->y;
+
+    uint32 ws = shift & 0xFF;
+    uint32 hs = shift >> 8;
+
+    int32 hdx0 = (x1 - x0) << ws;
+    int32 hdy0 = (y1 - y0) << ws;
+    int32 hdx1 = (x2 - x3) << ws;
+    int32 hdy1 = (y2 - y3) << ws;
+    int32 vdx0 = (x3 - x0) << hs;
+    int32 vdy0 = (y3 - y0) << hs;
+
+    hs = 16 - hs;
+    int32 hddx = (hdx1 - hdx0) >> hs;
+    int32 hddy = (hdy1 - hdy0) >> hs;
+
+    f->ccb_XPos = (x0 << 16) + (FRAME_WIDTH  << 15);
+    f->ccb_YPos = (y0 << 16) + (FRAME_HEIGHT << 15);
+
+    f->ccb_HDX = hdx0;
+    f->ccb_HDY = hdy0;
+    f->ccb_VDX = vdx0;
+    f->ccb_VDY = vdy0;
+    f->ccb_HDDX = hddx;
+    f->ccb_HDDY = hddy;
+
+#ifdef DEBUG_CLIPPING
+    f->ccb_PIXC = SHADE_SHADOW;
+#endif
+}
+
+void ccbMap3_c(Face* f, const Vertex* v0, const Vertex* v1, const Vertex* v2, uint32 shift)
+{
+    int32 x0 = v0->x;
+    int32 y0 = v0->y;
+    int32 x1 = v1->x;
+    int32 y1 = v1->y;
+    int32 x2 = v2->x;
+    int32 y2 = v2->y;
+
+    uint32 ws = shift & 0xFF;
+    uint32 hs = shift >> 8;
+
+    int32 hdx0 = (x1 - x0) << ws;
+    int32 hdy0 = (y1 - y0) << ws;
+    int32 vdx0 = (x2 - x0) << hs;
+    int32 vdy0 = (y2 - y0) << hs;
+
+    f->ccb_XPos = (x0 << 16) + (FRAME_WIDTH  << 15);
+    f->ccb_YPos = (y0 << 16) + (FRAME_HEIGHT << 15);
+    f->ccb_HDX = hdx0;
+    f->ccb_HDY = hdy0;
+    f->ccb_VDX = vdx0;
+    f->ccb_VDY = vdy0;
+
+    hs = 16 - hs;
+    f->ccb_HDDX = -hdx0 >> hs;
+    f->ccb_HDDY = -hdy0 >> hs;
+
+#ifdef DEBUG_CLIPPING
+    f->ccb_PIXC = SHADE_SHADOW;
+#endif
+}
 #endif
 
 bool transformBoxRect(const AABBs* box, RectMinMax* rect)
@@ -441,82 +522,6 @@ X_INLINE void ccbSetColor(uint32 flags, Face* face)
     face->ccb_SourcePtr = (CelData*)&gPalette[flags & 0xFF];
 }
 
-extern "C" void ccbMap4_asm(Face* f, const Vertex* v0, const Vertex* v1, const Vertex* v2, const Vertex* v3, uint32 shift);
-//#define ccbMap4 ccbMap4_asm
-#define ccbMap4 ccbMap4_c
-
-X_INLINE void ccbMap4_c(Face* f, const Vertex* v0, const Vertex* v1, const Vertex* v2, const Vertex* v3, uint32 shift)
-{
-    int32 x1 = v1->x;
-    int32 y1 = v1->y;
-    int32 x3 = v3->x;
-    int32 y3 = v3->y;
-    int32 x2 = v2->x;
-    int32 y2 = v2->y;
-    int32 x0 = v0->x;
-    int32 y0 = v0->y;
-
-    uint32 ws = shift & 0xFF;
-    uint32 hs = shift >> 8;
-
-    int32 hdx0 = (x1 - x0) << ws;
-    int32 hdy0 = (y1 - y0) << ws;
-    int32 hdx1 = (x2 - x3) << ws;
-    int32 hdy1 = (y2 - y3) << ws;
-    int32 vdx0 = (x3 - x0) << hs;
-    int32 vdy0 = (y3 - y0) << hs;
-
-    hs = 16 - hs;
-    int32 hddx = (hdx1 - hdx0) >> hs;
-    int32 hddy = (hdy1 - hdy0) >> hs;
-
-    f->ccb_XPos = (x0 << 16) + (((FRAME_WIDTH  >> 1) << 16) + 32768);
-    f->ccb_YPos = (y0 << 16) + (((FRAME_HEIGHT >> 1) << 16) + 32768);
-    f->ccb_HDX = hdx0;
-    f->ccb_HDY = hdy0;
-    f->ccb_VDX = vdx0;
-    f->ccb_VDY = vdy0;
-    f->ccb_HDDX = hddx;
-    f->ccb_HDDY = hddy;
-
-#ifdef DEBUG_CLIPPING
-    f->ccb_PIXC = SHADE_SHADOW;
-#endif
-}
-
-X_INLINE void ccbMap3(Face* f, const Vertex* v0, const Vertex* v1, const Vertex* v2, uint32 shift)
-{
-    int32 x0 = v0->x;
-    int32 y0 = v0->y;
-    int32 x1 = v1->x;
-    int32 y1 = v1->y;
-    int32 x2 = v2->x;
-    int32 y2 = v2->y;
-
-    uint32 ws = shift & 0xFF;
-    uint32 hs = shift >> 8;
-
-    int32 hdx0 = (x1 - x0) << ws;
-    int32 hdy0 = (y1 - y0) << ws;
-    int32 vdx0 = (x2 - x0) << hs;
-    int32 vdy0 = (y2 - y0) << hs;
-
-    f->ccb_XPos = (x0 << 16) + (((FRAME_WIDTH  >> 1) << 16) + 32768);
-    f->ccb_YPos = (y0 << 16) + (((FRAME_HEIGHT >> 1) << 16) + 32768);
-    f->ccb_HDX = hdx0;
-    f->ccb_HDY = hdy0;
-    f->ccb_VDX = vdx0;
-    f->ccb_VDY = vdy0;
-
-    hs = 16 - hs;
-    f->ccb_HDDX = -hdx0 >> hs;
-    f->ccb_HDDY = -hdy0 >> hs;
-
-#ifdef DEBUG_CLIPPING
-    f->ccb_PIXC = SHADE_SHADOW;
-#endif
-}
-
 X_INLINE void faceAddRoomQuad(uint32 flags, const Index* indices)
 {
     uint32 i01 = ((uint32*)indices)[0];
diff --git a/src/platform/3do/sound.cpp b/src/platform/3do/sound.cpp
index d411c65..5bde0db 100644
--- a/src/platform/3do/sound.cpp
+++ b/src/platform/3do/sound.cpp
@@ -133,9 +133,6 @@ void sndInit()
             ConnectInstruments(ch->sampler, "Output", sndMixer, InputName);
         }
 
-        if (ch->sampler < 0)
-            printf("FUCK!\n");
-
         ch->frequency = GrabKnob(ch->sampler, "Frequency");
         ch->amplitude = GrabKnob(ch->sampler, "Amplitude");
         ch->setVolume(0x7FFF);