debug memory editor monitoring thing

Lua/oot memory editor monitor.lua

@@ -0,0 +1,85 @@
+require "boilerplate"
+require "addrs.init"
+
+local blocknames = {
+    'R ', 'RS', 'RO', 'RP',
+    'RQ', 'RM', 'RY', 'RD',
+    'RU', 'RI', 'RZ', 'RC',
+    'RN', 'RK', 'RX', 'Rc',
+    'Rs', 'Ri', 'RW', 'RA',
+    'RV', 'RH', 'RG', 'Rm',
+    'Rn', 'RB', 'Rd', 'Rk',
+    'Rb',
+}
+
+function butts(ih)
+    local block = math.floor(ih/16/6)
+    local ir = ih - block*16*6
+    local page = math.floor(ir/16)
+    local row = ir - page*16
+    return block, page, row
+end
+
+ShortMonitor = Class()
+function ShortMonitor:init(name, a)
+    self.name = name
+    self.begin = a.addr
+    self.len = a.type
+    self.once = false
+    self.old_bytes = {}
+
+    local modified = {}
+    for i=0, self.len/2 do
+        modified[i] = false
+    end
+    self.modified = modified
+end
+
+function ShortMonitor:diff()
+    local bytes = mainmemory.readbyterange(self.begin, self.len)
+    local old_bytes = self.old_bytes
+    if self.once then
+        for k, v in pairs(bytes) do
+            local i = tonumber(k) - self.begin
+            local x = tonumber(v)
+            local x1 = tonumber(old_bytes[k])
+            if x ~= x1 then
+                self:mark(i, x, x1)
+            end
+        end
+    end
+    self.old_bytes = bytes
+    self.once = true
+end
+
+function ShortMonitor:mark(i, x, x1)
+    local ih = math.floor(i/2)
+    if self.modified[ih] == false then
+        self.modified[ih] = true
+        local block, page, row = butts(ih)
+        printf('%2s Page %1i Row %3i', blocknames[block+1], page+1, row+1)
+    end
+end
+
+function ShortMonitor:dump()
+    local buff = ''
+    for i=0, self.len/2 - 1 do
+        local ih = i
+        local block, page, row = butts(ih)
+        local mod = self.modified[ih]
+        local value = R2(self.begin + ih)
+        local vs = mod and '[variable]' or ('%04X'):format(value)
+        local s = ('%2X\t%2i\t%i\t%s\n'):format(block, page+1, row+1, vs)
+        buff = buff..s
+    end
+    print(buff)
+end
+
+-- 2 bytes each, 16 values per page, 6 pages per block, 29 blocks
+-- = 5568 bytes (0x15C0)
+me = ShortMonitor('me', A(0x210A24, 0x15C0))
+
+while true do
+    me:diff()
+    emu.frameadvance()
+end