|  Image File Formats |
Programming/General
Attribute Cell
The screen is divided into 40 x 25 = 1000 attribute cells. Each cell is 8 x 8 pixels in size (8 x 2 px in the MCFLI graphics mode) and it determines the color of foreground pens (pen 0 and pen 1) in the cell area.
Background Pen
| Pen Number | TED Register | Description | | 0 | $ff15 | Screen background color | | 1 | $ff17 | Screen programmable color number 1 | | 2 | $ff18 | Screen programmable color number 2 | | 3 | $ff16 | Screen programmable color number 3 |
Foreground Pen
| Pen Number | Description | | 0 | Attribute cell color 0 | | 1 | Attribute cell color 1 |
PAR
Pixel Aspect Ratio
- File Formats for Character Graphics
- Standard PETSCII Image
- File Formats for Bitmap Graphics
- Standard Bitmap Image
- Botticelli
- Multi Botticelli
- MCFLI
Graphic mode: High-Resolution Character Mode
Attribute Cell Size: 8 x 8 px
| Name | Size (Hex) | Size (Dec) | Offset (Hex) | Offset (Dec) | Description | | LOAD ADDRESS | $02 | 2 | $00 | 0 | Load address: $00, $08 | | COLOR DATA | $03e8 | 1000 | $02 | 2 | Character color data | | PADDING | $18 | 24 | $03ea | 1002 | Padding to adjust to kB boundary | | CHAR DATA | $03e8 | 1000 | $0402 | 1026 | Character data | | PADDING | $18 | 24 | $07ea | 2026 | Padding to adjust to kB boundary |
Note: Background color is not saved.
Load address: $0800 (2048)
File Size: 2050 bytes
Graphic mode: High-Resolution Bitmap Mode (320 x 200 px, PAR 1:1)
Attribute Cell Size: 8 x 8 px
| Name | Size (Hex) | Size (Dec) | Offset (Hex) | Offset (Dec) | Description | | LOAD ADDRESS | $02 | 2 | $00 | 0 | Load address: $00, $18 | | LUMINANCE MAP | $03e8 | 1000 | $02 | 2 | Foreground pen 0 (**) and 1 (*) luminance | | PADDING | $18 | 24 | $03ea | 1002 | Padding to adjust to kB boundary | | COLOR MAP | $03e8 | 1000 | $0402 | 1026 | Foreground pen 0 (*) and 1 (**) color | | PADDING | $18 | 24 | $07ea | 2026 | Padding to adjust to kB boundary | | BITMAP | $1f40 | 8000 | $0802 | 2050 | Bitmap data |
(*) Low nibble, (**) High nibble
Load address: $1800 (6144)
File size:10050 bytes
Graphic mode: High-Resolution Bitmap Mode (320 x 200 px, PAR 1:1), Multicolor Bitmap Mode (160 x 200 px, PAR 2:1)
Attribute Cell Size: 8 x 8 px
| Name | Size (Hex) | Size (Dec) | Offset (Hex) | Offset (Dec) | Description | | LOAD ADDRESS | $02 | 2 | $00 | 0 | Load address: $00, $78 | | LUMINANCE MAP | $03e8 | 1000 | $02 | 2 | Foreground pen 0 (**) and 1 (*) luminance | | PADDING | $16 | 22 | $03ea | 1002 | Padding to adjust to kB boundary | | BACKGRND 3 | $01 | 1 | $0400 | 1024 | Background pen 3 color, value stored to TED + $16 | | BACKGRND 0 | $01 | 1 | $0401 | 1025 | Background pen 0 color, value stored to TED + $15 | | COLOR MAP | $03e8 | 1000 | $0402 | 1026 | Foreground pen 0 (*) and 1 (**) color | | PADDING | $18 | 24 | $07ea | 2026 | Padding to adjust to kB boundary | | BITMAP | $1f40 | 8000 | $0802 | 2050 | Bitmap data |
(*) Low nibble, (**) High nibble
Note: The BACKGRND 3 & BACKGRND 0 colors are stored in reverse nibble order, so the lower and upper 4 bits must be swapped before you set the value to the TED.
Load address: 30720 ($7800)
File size: 10050 bytes
Graphic mode: High-Resolution Bitmap Mode (320 x 200 px, PAR 1:1), Multicolor Bitmap Mode (160 x 200 px, PAR 2:1)
Attribute Cell Size: 8 x 8 px
| Name | Size (Hex) | Size (Dec) | Offset (Hex) | Offset (Dec) | Description | | LOAD ADDRESS | $02 | 2 | $00 | 0 | Load address: $00, $78 | | LUMINANCE MAP | $03e8 | 1000 | $02 | 2 | Foreground pen 0 (**) and 1 (*) luminance | | PADDING | $12 | 18 | $03ea | 1002 | Padding to adjust to kB boundary | | SIGNATURE | $04 | 4 | $03fc | 1020 | "MULT": $4d, $55, $4c, $54 | | BACKGRND 3 | $01 | 1 | $0400 | 1024 | Background pen 3 color, value stored to TED + $16 | | BACKGRND 0 | $01 | 1 | $0401 | 1025 | Background pen 0 color, value stored to TED + $15 | | COLOR MAP | $03e8 | 1000 | $0402 | 1026 | Foreground pen 0 (*) and 1 (**) color | | PADDING | $18 | 24 | $07ea | 2026 | Padding to adjust to kB boundary | | BITMAP | $1f40 | 8000 | $0802 | 2050 | Bitmap data |
(*) Low nibble, (**) High nibble
Note: The BACKGRND 3 & BACKGRND 0 colors are stored in reverse nibble order, so the lower and upper 4 bits must be swapped before you set the value to the TED.
Load address: 30720 ($7800)
File size: 10050 bytes
Graphic mode: Multicolor FLI Mode (160 x 200 px, PAR 2:1)
Attribute Cell Size: 8 x 2 px
| Name | Size (Hex) | Size (Dec) | Offset (Hex) | Offset (Dec) | Description | | LOAD ADDRESS | $02 | 2 | $00 | 0 | Load address: $00, $20 | | LUMINANCE MAP 0 | $03e8 | 1000 | $02 | 2 | Luminance map 0 for foreground pens 0 (**) & 1 (*) | | UNUSED | $18 | 24 | $03ea | 1002 | Unused | | COLOR MAP 0 | $03e8 | 1000 | $0402 | 1026 | Color map 0 for foreground pens 0 (*) & 1 (**) | | UNUSED | $18 | 24 | $07ea | 2026 | Unused | | LUMINANCE MAP 1 | $03e8 | 1000 | $0802 | 2050 | Luminance map 1 for foreground pens 0 (**) & 1 (*) | | UNUSED | $18 | 24 | $0bea | 3050 | Unused | | COLOR MAP 1 | $03e8 | 1000 | $0c02 | 3074 | Color map 1 for foreground pens 0 (*) & 1 (**) | | UNUSED | $18 | 24 | $0fea | 4074 | Unused | | LUMINANCE MAP 2 | $03e8 | 1000 | $1002 | 4098 | Luminance map2 for foreground pens 0 (**) & 1 (*) | | UNUSED | $18 | 24 | $13ea | 5098 | Unused | | COLOR MAP 2 | $03e8 | 1000 | $1402 | 5122 | Color map 2 for foreground pens 0 (*) & 1 (**) | | UNUSED | $18 | 24 | $17ea | 6122 | Unused | | LUMINANCE MAP 3 | $03e8 | 1000 | $1802 | 6146 | Luminance map 3 for foreground pens 0 (**) & 1 (*) | | UNUSED | $18 | 24 | $1bea | 7146 | Unused | | COLOR MAP 3 | $03e8 | 1000 | $1c02 | 7170 | Color map 3 for foreground pens 0 (*) & 1 (**) | | UNUSED | $18 | 24 | $1fea | 8170 | Unused | | BITMAP | $1f40 | 8000 | $2002 | 8194 | Bitmap data | | BACKGRND 0 & 3 | $01c8 | 456 | $3f42 | 16194 | Background pen 0 & 3 colors for each pixel line, values to be written to TED + $15 and TED + $16 | | UNUSED | $38 | 56 | $410a | 16650 | Unused |
(*) Low nibble, (**) High nibble
Note: BACKGRND 0 & 3 array contains color register values for $ff15 and $ff16. The 1st value is for $ff15, 2nd for $ff16, 3rd for $ff15, 4th for $ff16, and so on.
Load address: $2000 (8192)
File size: 16706 bytes
file format, graphics, petscii, hires, multicolor, fli, mcfli
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