Update Specification.

Re-formatted as markdown.
Changed how flags are accessed.
Started flag documentation.
Added syscalls.

FLAGS.md

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+# Flags
+
+Locations shown below are relative to the start of flags, typically 0xFF00.
+
+Bits marked N/A read as zero and writing values will not have an effect.
+
+## Console
+
+### Status | CONSTS | 0x00
+
+|                 | 7   | 6   | 5   | 4   | 3   | 2   | 1   | 0   |
+| --------------- | --- | --- | --- | --- | --- | --- | --- | --- |
+| **Read/Write**  |     |     |     |     |     |     | R/W | R   |
+| **Defaults**    |     |     |     |     |     |     | 1   | X   |
+| **Name**        | N/A | N/A | N/A | N/A | N/A | N/A | Enabled | Available |
+
+### Cursor X | CONPOSX | 0x01
+
+* 8-bit unsigned number
+* Read/Write
+
+### Cursor Y | CONPOSY | 0x02
+
+* 8-bit unsigned number
+* Read/Write
+
+### Width | CONX | 0x03
+
+* 8-bit unsigned number
+* Read/Write
+
+### Height | CONY | 0x04
+
+* 8-bit unsigned number
+* Read/Write
+
+## ALU
+
+Flags here for logic/math results
+
+## Tape
+
+Tape control and status
+
+## Traps
+
+Trap status and settings
+
+
+<!-- 
+### Name | ALIAS | 0x00
+
+|                 | 7   | 6   | 5   | 4   | 3   | 2   | 1   | 0   |
+| --------------- | --- | --- | --- | --- | --- | --- | --- | --- |
+| **Read/Write**  |     |     |     |     |     |     |     |     |
+| **Defaults**    |     |     |     |     |     |     |     |     |
+| **Name**        |     |     |     |     |     |     |     |     |
+-->