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kierenj/DCPU16 debugger device

Created May 17, 2012 11:54
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DCPU16 debugger device
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DCPU16 debugger device
Name: Generic Debugger (compatible)
ID: 0xdeb91111
Version: 1
Interrupts do different things depending on contents of the A register:
A | BEHAVIOR
---+----------------------------------------------------------------------------
0 | Trigger a breakpoint
1 | Output diagnostics word (value in B)
2 | Output diagnostics string (null-terminated, pointed to by B)
3 | Output diagnostics string (length-prefixed, pointed to by B)
4 | Flag unit test success
5 | Flag unit test failure
6 | Set target processor speed in KHz (value in B)
7 | Set B to processor speed in KHz
8 | Reset cycle counter
9 | Get cycle counter value in B
? | Reserved for future expansion - default action is 'Trigger a breakpoint'
---+----------------------------------------------------------------------------
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