Visual Assembler - Commodore 64 & C64U

Devlog

• 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