ugBASIC User Manual

   RESOLUTION width, height

This keyword allows to have a “virtual” resolution. Even when you select a graphical mode with only 160 pixel x 200 pixel, the graphical instructions execute the same thing, the only difference is that the pixels will be proportional to virtual resolution. The choice to add this instruction is guided by mathematical ratio, since 640×400 pixels gives 1,6 where 640×200 gives 3,2. 1.6 isn't a perfect 4/3 ratio but at least it's closer. By default, the virtual resolution will be set equal to the resolution given by BITMAP ENABLE. Then, after RESOLUTION, the graphical instructions will use this virtual resolution.

  RESOLUTION 100, 100

 Res

• Atari (400/800)
• Atari XL/XE
• Commodore 128 (MOS 8502)
• Commodore 128 (Zilog Z80)
• Commodore 64
• Commodore 64+REU
• TRS-80 Color Computer
• TRS-80 Color Computer 3
• ColecoVision
• Amstrad CPC 664
• Dragon 32
• Dragon 64
• Thomson MO5
• Thomson MO5
• Olivetti Prodest PC128
• Commodore PLUS/4
• SEGA SC-3000
• SEGA SG-1000
• VG-5000
• Commodore VIC-20
• ZX Spectrum 48

If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please open an issue for this keyword on GitHub. Thank you!