Added notes to keep track of Zombies shit ISA

notes

@@ -0,0 +1,48 @@
+---------------
+--  Opcodes  --
+---------------
+
+Argless
+NOP
+HLT
+RST
+
+Idfk
+DBG
+
+Memory ops
+MOV
+PUSH
+POP
+
+Branches
+JMPA
+JMP
+JZ
+
+ALU stuff
+CMP
+INC
+DEC
+
+
+------------------------
+--  Addressing Modes  --
+------------------------
+reg - Register
+imm - Immediate
+abs - Absolute
+ida - Indirect absolute
+idr - Indirect register
+
+----  Examples  ----
+
+Assembly        --  Mode     --  Function
+---------------------------------------------------------
+mov A, 5        --  reg imm  --  A <- 5
+mov [$23], 5    --  ida imm  --  mem[mem[23]] <- 5
+mov $69, A      --  abs imm  --  mem[69] <- A
+mov 420, [A]    --  imm idr  --  mem[ip + 1] <- mem[A]
+add $13, $32    --  ida ida  --  mem[13] <- mem[13] + mem[32]
+inc A, 14       --  reg imm  --  A <- A + 1  |  Z <- (A == 14)   # Cursed zero flag
+