VM_log, // #532
VM_getsoundtime, // #533 float(entity e, float channel) getsoundtime = #533; (DP_SND_GETSOUNDTIME)
VM_soundlength, // #534 float(string sample) soundlength = #534; (DP_SND_GETSOUNDTIME)
-NULL, // #535
-NULL, // #536
-NULL, // #537
-NULL, // #538
+VM_buf_loadfile, // #535 float(string filename, float bufhandle) buf_loadfile (DP_QC_STRINGBUFFERS_EXT_WIP)
+VM_buf_writefile, // #536 float(float filehandle, float bufhandle, float startpos, float numstrings) buf_writefile (DP_QC_STRINGBUFFERS_EXT_WIP)
+VM_bufstr_find, // #537 float(float bufhandle, string match, float matchrule, float startpos) bufstr_find (DP_QC_STRINGBUFFERS_EXT_WIP)
+VM_matchpattern, // #538 float(string s, string pattern, float matchrule) matchpattern (DP_QC_STRINGBUFFERS_EXT_WIP)
NULL, // #539
VM_physics_enable, // #540 void(entity e, float physics_enabled) physics_enable = #540; (DP_PHYSICS_ODE)
VM_physics_addforce, // #541 void(entity e, vector force, vector relative_ofs) physics_addforce = #541; (DP_PHYSICS_ODE)