fogleman / dcpu-16 Goto Github PK

The application doesn't seem to care if the document you are closing has unsaved changes.

The editor text area keeps focus even when you switch to the display tab, resulting in accidental code modification while trying to input keystrokes into the emulator.

For example look at the nyan code, especially "tile_space" line in the editor, could be better.

It would be very useful to have the program pause automatically whenever the simulation reaches a breakpoint.

When an IFx instruction is run and fails, no interrupts should be triggered until after the instruction skipping is completed.

IFE 0, 1
SET PC, never           
SET PC, MainLoop  

In the above code, currently there is a small time period when PC is pointing to the line "SET PC, never" as it is skipping that instruction. If an interrupt is triggered when PC is pointing to this instruction it will get run when the interrupt returns. For a complete example of this in action, see the code below. You will see the program flow reach the :never block and the Z register will get set to 0xFFFF.

HWN I
IAS ClockISR
IAQ 0

:hwloop
SUB I, 1
HWQ I
IFE A, 0xB402
IFE B, 0x12D0           ; Search for clock
SET PC, foundClock
SET PC, hwloop

:foundClock
SET A, 0                ; Set clock freq to 60hz
SET B, 1
HWI I

SET A, 2
SET B, 1         ; Set clock to generate interrupts
HWI I


:MainLoop
IFE 0, 1                       ; Main loop that should never run the line "SET PC, never"
SET PC, never           
SET PC, MainLoop       

:never
SET Z, 0xFFFF                  ; Program flow should never reach here!
:crash SET PC, crash



:ClockISR
IAQ 1                  ; Simple ISR that just doesn't do much except return.
RFI

On Windows, selecting "Save" from the File menu, or pressing ctrl+s does not save the file.
When closing a modified document and choosing "Yes" on the "want to save" prompt, a "Save As..." dialog appears instead of the file being saved with its current filename.

Add file-tree explorer, editing of multiple files and assembler commands like #include.

Syntax highlighting is a must for long programs. Specially when comments are used as visual cues and separators.

It's mildly annoying to have to write the document's file name and replace it every time you want to save.

Once one BRK instruction has been hit, the run button acts the same as the step button.
For example I would expect to only have to click the run button once each time A reaches 0xFFFF when running the code below:

:loop
ADD A, 1
IFE A, 0xFFFF
    BRK
SET PC, loop

Add Support for Mackapar 35 Floppy Disks.