=> R0 = -1 for current mode
(if < 256) source mode
(if >= 256) pointer to sprite area
R1 = (if R0 < 256) source palette pointer, or -1 for current palette
(if R0 >= 256) pointer to sprite name/sprite in area pointed to by R0 (as specified by R5)
R2 = destination mode, or -1 for current mode
R3 = destination palette pointer, or -1 for current palette, or 0 for default for the mode
R4 = pointer to buffer, or 0 to return length
R5 = flags (only used if R0 >= 256)
R6 = pointer to transfer function workspace (R12) (if R0 => 256 and flags bit 2)
R7 = pointer to transfer function (if R0 => 256 and flags bit 2)
<= R4 = required buffer size if 0 on entry, else preserved
All other registers preserved
This call sets up a translation table in a buffer - that is, a set of colour numbers as used by scaled sprite plotting.
See PRM 3, page 346.
Select Table flags
Bit Meaning if set
0 R1 = pointer to sprite (otherwise sprite name)
1 use current palette if sprite doesn't have one (otherwise default palette)
2 R6, R7 specify transfer function
3 Return GCOL numbers instead of colour numbers
4 Generate large translation tables when converting to a 16/32bpp mode [3.50+]
24-31 Format of returned table :
0 => pixtrans table
1 => physical palette table
other bits reserved (must be zero)
ColourTrans transfer function
By setting bit 2 of the flags, ColourTrans will call the transfer function specified in R6 to pre-process each pallete entry
=> R0 = palette entry
R12 = workspace (as specifed in R7)
<= R0 = processed palette entry
Preserve all other registers
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