On 22-04-2012 20:12, Marco Leise wrote:
Am Sun, 22 Apr 2012 11:55:35 +0200
schrieb "Bernard Helyer"<[email protected]>:
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
