X-Git-Url: http://git.squeep.com/?p=dcpu16;a=blobdiff_plain;f=docs%2Fclock.txt;fp=docs%2Fclock.txt;h=71bbc8ba22a4088132420b6d48adefa5df0b62d6;hp=0000000000000000000000000000000000000000;hb=19bb0a4e64c9ab3e62ff4bbd959289704ee5b8f1;hpb=0a6b0889c67675bd71681ec41774d2ea57ce5335

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+Name: Generic Clock (compatible)
+ID: 0x12d0b402
+Version: 1
+
+Interrupts do different things depending on contents of the A register:
+
+ A | BEHAVIOR
+---+----------------------------------------------------------------------------
+ 0 | The B register is read, and the clock will tick 60/B times per second.
+   | If B is 0, the clock is turned off.
+ 1 | Store number of ticks elapsed since last call to 0 in C register
+ 2 | If register B is non-zero, turn on interrupts with message B. If B is zero,
+   | disable interrupts
+---+----------------------------------------------------------------------------
+
+When interrupts are enabled, the clock will trigger an interrupt whenever it
+ticks.