Opcode-List.md

-`0000mdddooooooss (0xUUUUuuuu)`
+# Mathematical Opcodes
+
+`0b0000mdddooooooss (0xUUUUuuuu)`
 
 Use ALU(s) to do an operation.  If m is 1 then all ALUs will be used, if 0 then only one ALU will be used.
 The 32-bit argument is optional.  It must be included if u is used in the source or destination.  It may not be included otherwise.
@@ -18,4 +20,30 @@ The 32-bit argument is optional.  It must be included if u is used in the source
 | `10` | RAM[u] |
 | `11` | ALURAM[u] |
 
+# Jumps and Calls
+
+`0b001prccc_nnnnnnnn (0xNNNN)`
+
+Generic conditional and unconditional relative and absolute(long) call/jump format. p = 1 for call, 0 for jump.  r = 1 for relative, 0 for absolute.  In a relative call/jump n is added to the PC.  In an absolute call/jump, the extra uint16 N is loaded and PC = `(N << 8) | n`
+
+| c (binary) | condition |
+| ---------- | --------- |
+| `000` | always |
+| `001` | never |
+| `010` | z flag |
+| `011` | nz flag |
+| `100` | g flag |
+| `101` | ge flag |
+| `110` | l flag |
+| `111` | le flag |
+
+# Extended
+
+`0b11111111_0000rrrr 0xvvvv`
+
+Load video control register r with value v
 
+| r (binary) | register |
+| ---------- | -------- |
+| `0000` | pixel clock divider * 2 |
+| `0001` | ???? |
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