SCREEN #mode
   SCREEN #type, #colorset
   ... = SCREEN

The SCREEN command allows to select a specific hardware-dependent screen mode. Every target has a specific list of modes. Normally, these modes are selected by describing resolution and color depth. This is another way to select graphical modes.

Moreover, there is another syntax for SCREEN. The second syntax allow to select the type and color scheme. Type is 0 for the text screen and 1 for the high resolution screen, while the color scheme depends on target.

Retrieves a bitmask with screen characteristics, such as whether or not TILE or BITMAP mode is available.

This can be verified with a simple bitwise comparison.

  SCREEN #1
  SCREEN #1, #0
  IF SCREEN IS TILEMAP THEN: PRINT "tilemap is native!": ENDIF

See also the following example files:

• screens_bitmap_01.bas

 Sc

• Atari (400/800)
• Atari XL/XE
• Commodore 128 (MOS 8502)
• Commodore 128 (Zilog Z80)
• Commodore 64
• 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!