#define R200_VPI_OUT_OP_EXP (65 << 0)
#define R200_VPI_OUT_OP_LOG (66 << 0)
-/* this is used for fog. Not sure what's different to normal EX2,
- but for fog calcs seems to match sw tnl much more closely. */
-#define R200_VPI_OUT_OP_EXP_FOG (67 << 0)
+/* base e exp. Useful for fog. */
+#define R200_VPI_OUT_OP_EXP_E (67 << 0)
#define R200_VPI_OUT_OP_LIT (68 << 0)
#define R200_VPI_OUT_OP_POW (69 << 0)