Beginner's Guide to Shortcuts and Formatting
This is a short beginner's guide to the keyboard shortcuts available within the decomp.me code editor, as well as a quick reference guide for the colors and symbols used in code comparisons in the Compilation sandbox.
Keyboard Shortcuts
Cursor Movement
| Keyboard shortcut |
Description |
| Home |
Move cursor to beginning of current line |
| End |
Move cursor to end of current line |
| PgUp |
Move cursor one screen up |
| PgDn |
Move cursor one screen down |
| Ctrl+Home |
Move cursor to beginning of file |
| Ctrl+End |
Move cursor to end of file |
| Ctrl+Shift+\ |
Move cursor to matching bracket |
Selection
| Keyboard shortcut |
Description |
| Shift+←/→ |
Select backward/forward one character |
| Ctrl+←/→ |
Select backward/forward one 'word' |
| Ctrl+L |
Select current line |
| Ctrl+A |
Select all/entire file |
Line Movement
| Keyboard shortcut |
Description |
| Enter/Shift+Enter |
Insert new line (with auto indent) |
| Alt+↑/↓ |
Shift current line up/down |
| Shift+Alt+↑/↓ |
Duplicate current line up/down |
| Ctrl+Shift+K |
Delete current line |
Undo, Redo, Delete
| Keyboard shortcut |
Description |
| Backspace/Del |
Delete character to left/right |
| Ctrl+Backspace/Del |
Delete word to left/right |
| Ctrl+Z |
Undo last action |
| Ctrl+Y (or Ctrl+Shift+Z) |
Redo last action |
| Ctrl+U |
Undo selection |
Formatting
| Keyboard shortcut |
Description |
| Tab (or Ctrl+]) |
Increase indent of cursor/selection |
| Shift+Tab (or Ctrl+[) |
Decrease indent of cursor/selection |
| Ctrl+K, Ctrl+C |
Comment current line |
| Ctrl+K, Ctrl+U |
Uncomment current line |
| Ctrl+/ |
Toggle line comments on selection |
| Shift+Alt+A |
Toggle block comments on selection |
| Ctrl+Shift+[ |
Collapse code block at bracket |
| Ctrl+Shift+[ |
Expand code block at bracket |
| Ctrl+K, Ctrl+0 |
Collapse all code blocks |
| Ctrl+K, Ctrl+J |
Expand all code blocks |
Search and Replace
| Keyboard shortcut |
Description |
| Ctrl+G |
Go to line... |
| Ctrl+F |
Open search and replace panel |
| Esc |
Close search and replace panel |
| Alt+Enter |
Select matches |
| Ctrl+Alt+Enter |
Replace all |
| Ctrl+/ |
Toggle line comments on selection |
| Ctrl+D |
Select next occurrence |
| Ctrl+Shift+L |
Select all matches with current selection (multi edit) |
Color and Symbol Guide
decomp.me uses color and symbols to help make understanding the assembly code comparisons easier.
- Branches (
~>) are color-coded to form "from" and "to" pairs
- Where code aligns except for registers, registers used in the same context are equivalently color-coded between
Target and Current to help spot their usage
- Specific types of differences between
Target and Current assembly code are denoted with color and symbol:
| Symbol |
Color |
Description |
| (no symbol) |
White |
Match - lines are the same, up to constant naming |
< |
Red |
Deletion - line is present (in this spot) in Target, but not (in this spot) in Current |
> |
Green |
Insertion - line is present (in this spot) in Current, but not (in this spot) in Target |
| |
Blue |
Change - line is a different instruction in Target and in Current |
i |
Blue |
Immediate difference - instruction matches, but numerical constants are different, or relocated |
r |
Gold |
Register Swap - at least one register used in this line does not match |
s |
Yellow |
Stack Difference - memory allocation does not match |
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