Jumping on the bandwagon - DDCPU-16

[Alex Rønne Petersen]

On 22-04-2012 20:12, Marco Leise wrote:
> Am Sun, 22 Apr 2012 11:55:35 +0200
> schrieb "Bernard Helyer"<b.helyer at gmail.com>:
>
>> https://github.com/bhelyer/DDCPU-16
>>
>> DDCPU-16 is a D implementation of Notch's (of Minecraft fame)
>> DCPU-16, a fictional 16 bit CPU for his upcoming game, 0x10c.
>> More info at http://0x10c.com, including specs.
>>
>> You'll see a grand total of two source files, and one is only
>> really there for my testing. The only interesting module is
>> dcpu16.cpu, which contains a class CPU with two public methods of
>> note: load(ushort[]) to load code and run(int) to run it for a
>> minimum number of cycles.
>>
>> The CPU code is completely freestanding, with no dependencies
>> (even on Phobos) and is @safe ready, and pure where possible.
>>
>> Manu is planning on hooking up some virtual hardware to it (which
>> is described in basic form elsewhere). No real reason for this,
>> just needed something to fill a Sunday.
>>
>> I've only tested it to the extent that I've stepped through
>> Notch's
>> example in the spec (the one loaded in main.d) and verified that
>> works, but I'm sure there'll be more bugs lurking. If you find
>> the bugs that I'm sure are still lurking, create an issue on
>> GitHub.
>>
>>
>> -Bernard.
>
> Haha, just today I watched a video about it and thought "D"CPU .. well if that isn't a call for action ;) Unfortunately Java has a native unsigned 16-bit data type (char). Otherwise Notch would probably have chosen D for writing 0x10^c. ;)
> As with Minecraft, I like the vision and technical realisation, but I wouldn't pay for and play them. I'm sure you had fun writing the CPU simulator. We wrote one (as a class project) at a vocational school a while back - in Java. It was for an 8086 and I did the CPU core logic. Most functions could be classified (like logical OR/XOR/..., accesses regs,mem,...) but for the rest I didn't find any pattern and called the corresponding class (translated) "ThenAMiracleHappens", referring to the well known comic: http://blog.wisefaq.com/wp-content/uploads/2008/05/amoh-small.jpg
> It was spiced with a two lines long ternary operator :? expression and no further comments. :D
>

I think the fact that you have to use 'char' as 'ushort' in Java says 
enough about the language and VM. ;)

/me runs

-- 
- Alex