Jumping on the bandwagon - DDCPU-16

[Paulo Pinto]

On Sunday, 22 April 2012 at 18:36:06 UTC, Alex Rønne Petersen 
wrote:
> 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

My latest issue with Java is the trend to add annotations instead 
of keywords, like @Override, or the new type annotations like 
@NotNull and so on.

Its slowly going to annotation hell.