Opcode galay mac emulator code#

The format seems to be a 0 terminated and comma separated sequence of data, including support for strings. Incidentally, the 'dat' instruction used to set the strings and colors on line 31 was documented in a pastebin linked to from notch's tumblr, though it's not documented in the DCPU-16 specification (as of version 1.1). Setting and Accessing Data Using the DAT Instruction

Opcode galay mac emulator code#

Take a look at line 15 in the assembly code below and you can see how each character in the strings from the dataВ subroutine end up getting set in sequence to 0x8000, 0x8001, 0x8002, etc. I can't tell yet specifically what values correspond to what colors, other than 0x170 seems to be grey text on a dark gray (or perhaps the default black?) background. It appears that std out to the terminal is performed by SETing the memory values in the 0x8000 -В 0x8400В range (which gives you a 32x32 character grid) with one word per character using the lower 8 bits for text, & leaving room in the upper 8 bits for colors. A way to store data that can be looped through.A standard way to show output to the in-game terminal.The latest screenshot of the (super early) build of 0x10c, still apparently under the name 'SpaceGame', gives away a two new details about the DCPU-16's instruction set that everyone who's been building compilers has been wanting: You can check out his working emulator (written in c) here. Update:В Based on comments from Adam Novak, this article has been updated to better reflect how the video memory range works.