Revert "Revert "update for new readbyterange behaviour""

This reverts commit adab471173.

Lua/classes/Monitor.lua

@@ -12,12 +12,10 @@ function Monitor:init(name, a)
 end
 
 function Monitor:read()
-    -- bizhawk has an off-by-one bug where this returns length + 1 bytes
-    local raw = mainmemory.readbyterange(self.begin, self.len-1)
+    local raw = mainmemory.readbyterange(self.begin, self.len)
     local bytes = {}
-    local begin = self.begin
     for k, v in pairs(raw) do
-        bytes[k - begin] = v
+        bytes[k] = v
     end
     return bytes
 end

Lua/test chests.lua

@@ -43,7 +43,7 @@ function read_ascii(addr, len)
     -- so we'll set up a table we can use ipairs() on
     local ordered_bytes = {}
     for a, v in pairs(bytes) do
-        ordered_bytes[tonumber(a, 16) - begin + 1] = v
+        ordered_bytes[tonumber(a, 16) + 1] = v
     end
 
     local seq = false