Fix GPU VM error on membus write if RAM size <128k (#2105)

Also fixes negative addresses not being treated as ports
wiremod · Dec 4, 2020 · 13d6bdb · 13d6bdb
1 parent 8ae2f1a
commit 13d6bdb
Showing 1 changed file with 12 additions and 0 deletions.
diff --git a/lua/entities/gmod_wire_gpu/cl_gpuvm.lua b/lua/entities/gmod_wire_gpu/cl_gpuvm.lua
@@ -107,6 +107,18 @@ function ENT:OverrideVM()
     end
   end
 
+  self.VM.ExternalWrite = function(VM, Address, Value)
+    if (Address >= 65536) and (Address <= 131071) then
+      return true
+    elseif Address < 0 then
+      VM:WritePort(-Address - 1, Value)
+      return true
+    end
+
+    VM:Interrupt(7, Address)
+    return false
+  end
+
   -- Add internal registers
   self.VM.InternalRegister[128] = "EntryPoint0"
   self.VM.InternalRegister[129] = "EntryPoint1"