CONQuest

(yeah, I'm not sure what to name this yet...)

This is a 32-bit fantasy computer, mostly inspired by Uxn.

Doing this for fun.

Docs

See the Standard

To-Do List

• Initial API
• Implement pointer instructions
• Implement arithmetic instructions
• Simplify assembler and interpreter codes (use macros to avoid repetition)
• Assembler : implement labels and jumps (maybe just a macro to set the PC to the specified address... but that might cause an unwanted increase of the program counter at the end of the loop)
  • How to track labels and references to jump both backwards and forward?
    • Maybe keep a Dict<String, Variant<Label, Vector<Addr>>
    • If we found a jump and the label isn't in the dict, create an entry and set the value to the Vector
    • If it's in the dict, then check if it's a vector (and add the instruction address) or a label (directly insert the label's address)
    • If found a label:
      • if it's in the dict as a Label, error (two labels with the same name)
      • if it's in the dict as a Vector, replace with the Label address and, for each value in the vector, replace with the label's address
      • if it's not in the dict, just add the Label entry
    • At the end of it all, if there's any label defs with no address in the list, error out with "use of undefined label"
• Assembler : change syntax
  • Sure, I like the funny whitespace-insensitive thing, but... I think it hurts readability. It doesn't need this (if it were a forth it would, but it isn't.)
• Implement device I/O
• Implement common processor stuff
  • Timed interrupt (funky way to do multithreading, perhaps? - set up an interrupt to run every n cycles - a multiple of 32 i think, so i can fit it in an uint32)
  • Search more about common types of interrupts
  • Which clock? 4MHz? 8? 16? 32? 64 is probably too much...
• Implement relative jumps (taking an i8 or i16, I believe!)
• Relative jump optimizations
• Graphics (using SDL)
  • Default rate: 60hz
  • Related interrupt
• Audio (using SDL)
  • Should I put in a dedicated sound chip? and should it already exist (e.g. OPL3)?