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Added | Removed | Changed
Entry | |
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R0 | Flags: |
Bit 0: Return dimensions | |
Bit 1: Return SOF type | |
Other bits reserved, should be zero | |
R1 | Pointer to control-character terminated filename |
Exit | |
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R0 | Flags: |
Bit 0: Image is greyscale | |
Bit 1: Transformed plots are not supported | |
Bit 2: Pixel density is only a ratio | |
Bits 3-6: SOF type (if requested) | |
R2 | Width in pixels |
R3 | Height in pixels |
R4 | X pixel density |
R5 | Y pixel density |
R6 | Size of extra workspace needed to render |
- | Other registers preserved |
This call is used to read the attributes of a JPEG image held on a filing system.