Visual Assembler - Commodore 64 & C64U

Devlog

• The official Discord server is now available.
  August 15, 2026 by zstarczali

  Guys, I’d like to invite you to the official C64 Visual Assembler Discord server! Thx RetroBoj - Zsolt https://discord.gg/jphrwbkD2... Continue reading

  
• Visual Assembler 2.3.3 is out
  August 15, 2026 by zstarczali#ViusalAssembler, #commodore 64

  What's New v2.3.3 Updated: UltimateBasic 1.5.2 — the bundled compiler now supports the latest language additions, addressed incbin , generated ASM output, map/Koala commands, collision helpers, and... Continue reading
• Visual Assembler 2.3.1 is out
  August 14, 2026 by zstarczali

  1

  What's New v2.3.1 Improved: SID tracker editing — Shift-select rectangular regions across all three voices, then copy, cut, paste, or clear them from the toolbar, keyboard shortcuts, or the new icon... Continue reading

  
• Visual Assembler 2.3.0 is out
  August 13, 2026 by zstarczali

  1

  #ViusalAssembler, #commodore 64

  What's New v2.3.0 New: complete Ultimate Basic IDE mode — create, open, edit, format, search, and save .ub sources with syntax highlighting, minimap, line numbers, autocomplete, command reference, a... Continue reading
• Visual Assembler 2.2.9 is out
  August 12, 2026 by zstarczali

  1

  #VisualAssembler, #commodore 64

  What's New v2.2.9 New: inline comments survive Expert round-trips — comments such as LDA $12 ; border color now stay attached to their source lines when you switch between Expert and Block mode, ins... Continue reading
• Visual Assembler 2.2.8 is out
  July 31, 2026 by zstarczali

  2

  #VisualAssembler, #commodore 64

  What's New v2.2.8 New: Curve Editor — generate .byte lookup tables from math curves (sine, easings, triangle/sawtooth/square, bounce) with a live graph and a bouncing-ball preview. Outputs an 8-bit... Continue reading

  
• Visual Assembler 2.2.6 is out
  July 30, 2026 by zstarczali

  3

  #VisualAssembler, #commodore 64

  What's New v2.2.6 New: Charset Canvas editor — paint a full 16×16 / 256-character charset as one picture in mono or C64 multicolor character mode, with pencil, eraser, line, rectangle, oval, fill... Continue reading
• Visual Assembler 2.2.4 is out
  July 26, 2026 by zstarczali

  2

  What's New v2.2.4 SID editor fixes — SID preview playback now steps through multiple patterns in sequence instead of looping only the currently selected one, and the instrument/pattern selectors plu... Continue reading

  
• Visual Assembler 2.2.2 is out
  July 22, 2026 by zstarczali

  2

  #VisualAssembler, #commodore 64, #programing

  What's New v2.2.2 FILL & CONST expression syntax — both the FILL macro and CONST value fields now accept full arithmetic expressions: CONST name references, hex ( $FF ) and binary ( %1010 ) literals... Continue reading

  
• Visual Assembler 2.2.1 is out
  July 12, 2026 by zstarczali

  2

  What's New v2.2.1 Kick Assembler import — the new ASM import button on the Program menu ingests raw Kick Assembler source ( .pc = $0801 , .macro NAME(params) { … } , bare NAME(args) and :NAME(args... Continue reading
• Visual Assembler 2.2.0 is out
  July 10, 2026 by zstarczali

  3

  #VisualAssembler, #commodore 64

  What's New v2.2.0 Project files — the project panel can now add raw .asm / .s / .a65 / .inc files, and clicking a tree item opens the matching source instead of trying to parse it as a project JSON... Continue reading
• Visual Assembler 2.1.8 is out
  July 08, 2026 by zstarczali

  1

  What's New v2.1.8 Project ASM files — the project panel can now add raw .asm / .s / .a65 / .inc files, and clicking a tree item opens the matching source instead of trying to parse it as a project J... Continue reading
• Visual Assembler 2.1.7 is out
  July 06, 2026 by zstarczali

  1

  #VisualAssembler, #commodore 64, #Assembler

  What's New v2.1.7 Hotfix (2.1.7) — MEMCPY and MEMSET blocks in Block mode now show the little dropdown arrow on their input fields (source / destination / value / size), matching every other macro b... Continue reading
• Visual Assembler 2.1.6 is out
  July 05, 2026 by zstarczali

  1

  #VisualAssembler, #commodore 64

  What's New v2.1.6 Custom tooltips everywhere — all remaining UI buttons (project file star & delete, tab close/new, block action buttons, collapse toggle) now use the custom CSS aria-label tooltip i... Continue reading
• Visual Assembler 2.1.5 is out
  July 05, 2026 by zstarczali

  1

  #VisualAssembler, #commodore 64

  What's New v2.1.5 Hotfixes — this 2.1.5 release bundles the recent Expert-mode and compile-time fixes, including asset loading, compile error clarity, syntax highlighting for previously missing macr... Continue reading
• Visual Assembler 2.1.4 Hotfix is out
  July 05, 2026 by zstarczali

  1

  Guys, I’m really sorry, but due to a refactor in yesterday’s 2.1.3 update (2026.07.04), a bug slipped in that made the Visual Assembler unusable. I’m sorry for any inconvenience this may have ca... Continue reading
• Visual Assembler 2.1.3 is out
  July 04, 2026 by zstarczali

  2

  #VisualAssembler, #commodore 64

  What's New v2.1.3 Expert asset auto-reload — typing .include , .incbin , or .sid directly in Expert mode now loads the referenced file (source, binary, or SID tune) automatically, resolving names ag... Continue reading
• Visual Assembler 2.1.2 is out
  July 03, 2026 by zstarczali

  1

  What's New v2.1.2 Hotfixes — the Expert mode Region selection toggle now only controls the automatic region highlight, and collapsed regions keep their cursor/selection behavior aligned. Mnemonic ca... Continue reading

  
• Visual Assembler 2.1.1 is out
  July 02, 2026 by zstarczali

  1

  #VisualAssembler, #commodore 64

  What's New v2.1.1 Automatic ZP allocation — .var blocks reserve zero-page bytes on their own, so you do not need to pick addresses manually, and collisions warn instead of overwriting. Runtime flow... Continue reading
• Visual Assembler 2.1.0 is out
  July 01, 2026 by zstarczali

  1

  #VisualAssembler, #commodore 64

  What's New v2.1.0 Automatic ZP allocation — new .var blocks reserve zero-page bytes on their own, so you no longer need to pick addresses manually. Collisions warn instead of silently overwriting. R... Continue reading
• Visual Assembler 2.0.7 is out
  June 28, 2026 by zstarczali

  1

  #VisualAssembler, #commodore 64

  What's New v2.0.7 German language (Deutsch) — full German UI translation added alongside the existing Hungarian, English, and Spanish. Select it from the language dropdown to switch the entire inter... Continue reading
• Visual Assembler 2.0.6 is out
  June 25, 2026 by zstarczali

  1

  #VisualAssembler, #commodore 64

  What's New v2.0.6 Expert editor: autocomplete toggle — the expert toolbar now includes a master autocomplete switch. Turn it off to suppress popup suggestions completely, or back on to restore direc... Continue reading
• Visual Assembler 2.0.5 is out
  June 23, 2026 by zstarczali

  1

  #VisualAssembler, #commodore 64

  What's New v2.0.5 Expert editor: Find (Ctrl+F) — floating find bar in the expert editor with real-time match highlighting, match counter, and Prev/Next navigation. Matches are highlighted in the syn... Continue reading
• Visual Assembler 2.0.4 is out
  June 22, 2026 by zstarczali

  1

  #ViusalAssembler, #commodore 64

  What's New v2.0.4 Shape tools in Map and Sprite editors — line, rectangle, and circle drawing tools added to both editors with live preview. Click to start, move to resize, release to commit. The ac... Continue reading
• Visual Assembler 2.0.3 is out
  June 21, 2026 by zstarczali

  2

  #VisualAssembler, #commodore 64, #cooding, #assembly

  What's New v2.0.3 Map editor transparent paste — the Map Editor now has a transparent paste mode alongside normal paste. Empty tiles stay transparent, so copied regions can be stamped over existing... Continue reading
• Visual Assembler Hotfix 2.0.2 is out!
  June 20, 2026 by zstarczali

  2

  What's New v2.0.2 Linux support — v2.0.2 adds official Linux (Ubuntu/Debian) support. The window close button now works correctly. VICE and D64 launch are fixed: display session variables are propag... Continue reading
• Visual Assembler Hotfix 2.0.1 is out!
  June 19, 2026 by zstarczali

  2

  #VisualAssembler, #commodore 64, #Assembler

  What's New v2.0.1 Hotfixes — v2.0.1 bundles a round of small fixes and polish updates. Exomizer mem mode for D64 extras — raw binary files added to a D64 (e.g. multicolor bitmaps, sample data) can... Continue reading

  
• Visual Assembler 2.0.0 is out!
  June 18, 2026 by zstarczali

  2

  #VisualAssembler, #commodore 64, #cooding, #assembler, #assembly

  What's New v2.0.0 Exomizer mem mode for D64 extras — raw binary files added to a D64 (e.g. multicolor bitmaps, sample data) can now be compressed with exomizer mem backward mode. The Run via D64 dia... Continue reading
• Visual Assembler 1.7.4 is out
  June 13, 2026 by zstarczali

  2

  #VisualAssembler, #commodore 64, #Assembler, #assembly

  What's New v1.7.4 Exomizer integration — optional Exomizer crunching for all run and build paths via a single checkbox in the Settings menu. Configure the Exomizer executable in Hardware Settings, t... Continue reading
• Visual Assembler 1.7.3 is out
  June 13, 2026 by zstarczali

  2

  #VisualAssembler, #commodore 64, #cooding, #assembler, #assembly

  What's New v1.7.3 UI overhaul — clean, professional look — removed all gradients, replaced purple/indigo AI-colors with a professional slate-blue palette. Light, Dark and OLED themes all updated... Continue reading
• Visual Assembler 1.7.2 is out
  June 09, 2026 by zstarczali

  3

  #VisualAssembler, #commodore 64, #assembler, #assembly

  What's New v1.7.2 INVOKE + INCLUDE fix — macros defined in a fixed-address .include library (e.g. $1500 ) are now correctly found by .invoke . MACRO / LABEL block full-color styling — MACRO/ENDM b... Continue reading
• Visual Assembler 1.7.1 is out
  June 09, 2026 by zstarczali

  3

  #VisualAssembler, #assembly, #commodore 64, #assembler

  What's New v1.7.1 Settings dialog — program settings (BASIC SYS stub, block description sync, Expert mode toggle) and ASM output settings (macro source, region comments, memory overlays) moved from... Continue reading
• Visual Assembler 1.7.0 is out + Tutorials
  June 05, 2026 by zstarczali

  3

  #VisualAssembler, #assembler, #assembly, #commdore 64

  What's New v1.7.0 Spanish language (Español) — full Spanish UI localisation: all menus, dialogs, tooltips, error messages, block labels, and memory map annotations. Spanish mnemonic descriptions fo... Continue reading
• Visual Assembler 1.6.9 is out
  June 04, 2026 by zstarczali

  1

  #VisualAssembler, #commdore64, #assembler, #assembly

  What's New v1.6.9 FOR / ENDF forward-counting loops — new forward-counting loop macros: FOR loads X/Y with zero, ENDF emits INX/INY + CPX/CPY #limit + BNE . Loop body runs 0..limit−1. Supports nes... Continue reading
• Visual Assembler 1.6.8 is out
  June 01, 2026 by zstarczali

  2

  #VisualAssembler, #assembly, #commodore 64, #assembler

  What's New v1.6.8 Pure 6502 disassembler view — the Disasm output mode now shows a clean machine-code listing: no macros, no comments, no annotations. Only real 6502 instructions with addresses, hex... Continue reading

  
• Visual Assembler 1.6.7 is out - Commodore 64 & Commodore 64 Ultimate
  May 31, 2026 by zstarczali

  1

  What's New v1.6.7 Lowercase charset TEXT/STRING/RAWTEXT auto-detection — all text macros now auto-detect alphabetic input and encode it for the C64 lowercase charset. TEXT "Hello World" produces mix... Continue reading

  
• Visual Assembler 1.6.6 is out - Commodore 64 & Commodore 64 Ultimate
  May 26, 2026 by zstarczali

  2

  #VisualAssembler, #assembler, #commodore 64, #assembly

  What's New v1.6.6 MOUSE macro — and sample hotfix. Build Info dialog — a new Build Info button (toolbar and Expert mode toolbar) opens a summary dialog showing origin address, end address, total s... Continue reading

  
• Visual Assembler 1.6.5 is out - Commodore 64 & Commodore 64 Ultimate
  May 25, 2026 by zstarczali

  2

  #VisualAssembler, #Assembler, #assembler, #assembly

  What's New v1.6.5 Region copy & paste — each REGION block now has a ⧉ copy and ⎘ paste button in its header. Copy duplicates the region with all its blocks; paste inserts the copy as a new regio... Continue reading

  
• Visual Assembler 1.6.1 is out - Commodore 64 & Commodore 64 Ultimate
  May 15, 2026 by zstarczali

  2

  #VisualAssembler, #commdore 64, #assembler, #assembly

  What's New v1.6.1 Cut / Copy / Paste blocks — select one or more blocks and cut or copy them to the clipboard. Paste inserts the blocks after the current selection. Works across tabs. Keyboard short... Continue reading

  
• Visual Assembler 1.6.0 is out - Commodore 64 & Commodore 64 Ultimate
  May 09, 2026 by zstarczali

  2

  What's New v1.6.0 Expert Mode — a full direct-text ASM editor alongside the block editor. Write 6502 assembly by hand with live syntax highlighting, real-time disassembly panel, block-mode palette s... Continue reading

  
• Visual Assembler 1.5.1 is out - Commodore 64 & Commodore 64 Ultimate
  May 03, 2026 by zstarczali

  2

  #VisualAssembler, #commdore64, #assembler, #assembly

  What's New v1.5.1 Bug fixes & UI improvements — "New program" now shows a confirmation dialog before clearing. STRING and RAWTEXT descriptions corrected (screen codes, not PETSCII). Tonns of other s... Continue reading

  
• Visual Assembler 1.5 is out - Commodore 64 Ultimate support
  May 01, 2026 by zstarczali

  3

  #VisualAssembler, #commodore 64, #assembler, #assembly

  What's New v1.5.0 Export to D64 — assemble your program and export it directly to a .d64 disk image using VICE's c1541 tool. Add extra files (data, sprites, PRGs) to the same disk before export. Run... Continue reading

  
• Visual Assembler 1.4.7 is out - Commodore 64
  April 24, 2026 by zstarczali

  2

  #VisualAssembler, #commodore 64, #assembler, #assembly

  What's New v1.4.7 Import dialog inline errors — failed ASM imports now keep the dialog open and show the error list directly at the bottom of the same dialog. Import source recovery on failure — w... Continue reading

  
• Visual Assembler 1.4.6 is out - Commodore 64
  April 20, 2026 by zstarczali

  2

  What's New v1.4.6 Import ASM dialog — a new File menu action lets you paste textual 6502 assembly (`ORG`, labels, `.byte`, comments, instructions) and convert it into Visual Assembler blocks. Compil... Continue reading

  
• Visual Assembler 1.4.5 is out - Commodore 64
  April 12, 2026 by zstarczali

  3

  #VisualAssembler, #commodore 64, #assembler, #assembly

  What's New v1.4.5 Label + offset addressing — operand fields now accept label+$FF and label-$FF expressions; the assembler resolves the final address at compile time, e.g. STA screen_ram+$0100,X . C... Continue reading

  
• Visual Assembler 1.4.4 is out - Commodore 64
  April 05, 2026 by zstarczali

  2

  #VisualAssembler, #commodore 64, #assembler, #assembly

  What's New v1.4.4 C64 Debugger integration — launch the assembled PRG directly in C64 Debugger alongside RetroDebugger; breakpoints, symbols, -jmp , -wait , and -unpause are fully supported for both... Continue reading

  
• Visual Assembler 1.4.2 is out - Commodore 64
  April 02, 2026 by zstarczali

  2

  #VisualAssembler, #commodore 64, #assembler, #assembly

  What's New v1.4.2 ASM syntax highlighting — the ASM output now uses color coding: mnemonics (cyan), operands (yellow), immediate numbers (orange), labels (gold), directives (purple), macro comments... Continue reading

  
• Visual Assembler 1.4.1 is out - Commodore 64
  April 01, 2026 by zstarczali

  3

  #VisualAssembler, #commodore 64, #assembler, #assembly

  What's New v1.4.1 REGION / ENDREGION blocks — group any set of blocks into a named, collapsible section. Click the toggle to fold the entire region into one line. Includes Expand all and Select in A... Continue reading

  
• Visual Assembler 1.4.0 is out - Commodore 64
  March 29, 2026 by zstarczali

  2

  #VisualAssembler, #commdore64, #assembler, #assembly

  What's New v1.4.0 #<label / #>label operand support — lo/hi byte operators now work in immediate mode (e.g. LDA #<irq_handler / LDA #>irq_handler ). Essential for setting up IRQ handlers and splitti... Continue reading

  
• Visual Assembler 1.3.9 Hotfix is out - Commodore 64
  March 29, 2026 by zstarczali

  2

  What's New v1.3.9 Drag & drop — complete rewrite — replaced HTML5 drag API with Pointer Events-based drag & drop. Fixes palette → program and block reordering drag on macOS (Tauri/WKWebView). PE... Continue reading

  
• Visual Assembler 1.3.8 is out - Commodore 64
  March 28, 2026 by zstarczali

  1

  #VisualAssembler, #commdore64, #assembler, #assembly

  What's New v1.3.8 Migrated from Electron to Tauri 2 — smaller binary, lower memory usage, no bundled Chromium This update includes tons of bug fixes ... Continue reading

  
• Visual Assembler 1.3.7 Hotfix is out - Commodore 64
  March 27, 2026 by zstarczali

  2

  v1.3.7 CRT retro mode — full-screen CRT filter overlay: scanlines, phosphor vignette, screen flicker, and barrel distortion. Toggle via the 📺 CRT retro mode button in the View menu. State is save... Continue reading
• Visual Assembler 1.3.6 is out - Commodore 64
  March 27, 2026 by zstarczali

  2

  #VisualAssembler, #commodore 64, #assembler, #assembly

  What's New v1.3.6 SPRITE_INIT macro — initialise a VIC-II sprite in one block: sets the data pointer ( $07F8+N ), enables the sprite ( $D015 ), and sets its colour ( $D027+N ). Parameters: sprite nu... Continue reading
• Visual Assembler 1.3.5 is out - Commodore 64
  March 27, 2026 by zstarczali

  2

  #VisualAssembler, #commodore 64, #assembler, #assembly

  v1.3.5 SPRITE_INIT macro — initialise a VIC-II sprite in one block: sets the data pointer ( $07F8+N ), enables the sprite ( $D015 ), and sets its colour ( $D027+N ). Parameters: sprite number (0–... Continue reading
• Visual Assembler 1.3.2 is out - Commodore 64
  March 26, 2026 by zstarczali

  2

  #VisualAssembler, #commodore 64, #assembler, #assembly

  What's New v1.3.2 CONST pseudo-mnemonic — declare named constants with a dedicated CONST block (name + value + HEX/DEC format). Constants are added to the label table at assemble time and appear as... Continue reading
• Visual Assembler 1.3.0 is out - Commodore 64
  March 24, 2026 by zstarczali

  2

  #VisualAssembler, #commodore 64, #assembler, #assembly

  What's New v1.3.0 IF/ELSE branch fix — the ELSE branch now correctly appears in the ASM view. A missing internal function caused a crash during rendering whenever any block was conditionally skipped... Continue reading
• Visual Assembler 1.2.8 is out - Commodore 64
  March 24, 2026 by zstarczali

  1

  #VisualAssembler, #commodore 64, #Assembler

  What's New v1.2.8 Zoom fix — block UI elements such as the Addressing mode selector, Format (HEX/DEC) toggle, INCBIN/INCLUDE file row, and SID metadata now correctly scale with the zoom level. ASM s... Continue reading
• Visual Assembler 1.2.7 is out - Commodore 64
  March 22, 2026 by zstarczali

  2

  #VisualAssembler, #commdore 64, #assembler, #assembly

  What's New v1.2.7 Label picker — operand fields on branch and jump instructions ( BNE , JMP , JSR , etc.) now show a custom dropdown listing all labels defined in the current program. Click to inser... Continue reading
• Visual Assembler 1.2.6 is out - Commodore 64
  March 21, 2026 by zstarczali

  3

  #commodore64, #assembler, #cooding

  What's New v1.2.6 UI improvements — block collapse/expand is now animated with a smooth slide. Buttons are more compact and consistent across the interface. The version number is now visible in dark... Continue reading

  
• Visual Assembler 1.2.0 is out - Commodore 64
  March 19, 2026 by zstarczali

  1

  #commodore64, #assembly

  What's New v1.2.0 Bug fix: Hungarian language label — the "Language" label in the Settings menu now correctly displays "Nyelv" in Hungarian mode instead of the raw key string. New addressing modes... Continue reading