C64 Studio is a .NET based IDE.

The program supports project based C64 assembly or Basic V2. The internal assembler is using the ACME syntax.

In connection with Vice the IDE allows you to debug through your code and watch variables/memory locations, registers and memory. Any other emulator can be set up as well if it’s startable via runtime arguments.

C64 Studio allows you to compile to raw binary, .prg, .t64, .d64 or cartridge format (.bin and .crt for 8k, 16k, MagicDesk)

Additionally to this C64 Studio comes with a charset, sprite and media editor (tape and disk).

An encompassing help documentation is part of the program.

Version 6.5 Fixes and Additions:

Fix: Update URL for version check
Fix: Allow {, }, _ as valid keys for BASIC (to access assembly symbols)
Add: Binary Editor – remove nth byte option
Fix: Macro with squiggly braces inside inactive scope would not be properly parsed
Fix: Replace tool list with arrangeditemlist
Add: Allow clone for arranged item lists (sprite editor, grapic screen editor, value table editor, library paths, build chains)
Add: Binary editor, wrap data output (ASM)
Fix: BASIC Renumber modified Ctrl-N in string literals
Add/Fix: Export sprite to BASIC now obeys the wrap-at-x-bytes setting
Fix: Crash when copylinedown is used in bottom most line
Fix: Theming, set BASIC editor fore color to CODE, not CONTROL_TEXT
Fix: Remove “GO” BASIC token once again, messes up syntax coloring for GOSUB and GOTO
Fix: Only auto-add truedrive options for VICE
Add: Auto-Add local baselib path for Kernal.asm
Fix: Tiny theming issue with labels
WIP: Decent sample projects
Tiny cleanup of sample projects, needs major overhaul!
Fix: Rename BASIC line number for exports consistently
Add: !fill expression method
Add: Keybindings for bookmarks
Fix: Scaling bug in sprite editor
Add: Allow font styles
WIP: New binary monitor interface to GTK Vice
Fix: typo in doc
Fix: autodetection for zeropage addressing failed for value $ff (facepalm)
Fix/Add: Allow adding of .chr binary to solution
Fix: Allow breakpoints working with non-project files
Fix: Export to Koala, added missing BG color byte
Fix: Proper wait for executed output during build
Add: Dependencies and symbols from other projects
Add: Charset control in charset screen
Add: Export to binary charset from map project
Fix: charset screen size change only sets modified if it really changes

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