diff --git a/headers/private/graphics/nvidia/nv_macros.h b/headers/private/graphics/nvidia/nv_macros.h
index 480b5685b9..4b57a29eaa 100644
--- a/headers/private/graphics/nvidia/nv_macros.h
+++ b/headers/private/graphics/nvidia/nv_macros.h
@@ -73,6 +73,12 @@
 
 /* NV ACCeleration registers */
 /* engine initialisation registers */
+//new:
+#define NVACC_ABS_UCLP_XMIN	0x0040053c
+#define NVACC_ABS_UCLP_YMIN	0x00400540
+#define NVACC_ABS_UCLP_XMAX	0x00400544
+#define NVACC_ABS_UCLP_YMAX	0x00400548
+//end new.
 #define NVACC_FORMATS		0x00400618
 #define NVACC_OFFSET0		0x00400640
 #define NVACC_OFFSET1		0x00400644
@@ -140,6 +146,7 @@
 #define NVACC_NV40P_BLIMIT7	0x004008a4
 #define NVACC_NV45_WHAT2	0x00400860
 #define NVACC_NV45_WHAT3	0x00400864
+#define NVACC_NV20_WHAT0	0x00400900
 #define NVACC_NV40_WHAT0	0x004009b0
 #define NVACC_NV40_WHAT1	0x004009b4
 #define NVACC_NV40_WHAT2	0x004009b8