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Each entry is n*(5 + number_of_registers) bits long, where n is the current mode in bits
Each entry uses the following format:
width: same number of bits as current mode
(higher address)
+----------------------------------------------------------------------------------+
| array of register's contents on last switch |
+-----------------------------------+----------------------------------------------+
| upper 1/2: number of segments | lower 1/2: pointer to segments |
+-----------------------------------+----------------------------------------------+
| upper 1/2: callable segment index | lower 1/2: current task being executed as |
+-----------------------------------+----------------------------------------------+
| PR to be used when called |
+----------------------------------------------------------------------------------+
| reserved for specifying where it's being executed (TODO) |
+-----------------------------------+---------------------+------------------------+
| upper 1/2: custom id | n bits below: flags | remaining: unused |
+-----------------------------------+---------------------+------------------------+
(lower address)
Flags:
0: Valid
1: Currently running
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