=> R0 = flags
bit 0 = 1 source in memory
0 source is a file
bit 1 = 1 destination in memory
0 destination is a file
R1 = address in memory if bit 0= 1
pointer to source name if bit 0= 0
R2 = destination address if bit 1= 1
pointer to destination name bit 1= 0
R3 = if bit 0= 1 length of source in bytes
R4 = if bit 1= 1 length of destination buffer
<= R0 is corrupted or contains error pointer
R5 = if bit 1= 1 number of bytes used
all other register are preserved
This call decompresses a file or a block of data in memory to a file or a block of data in memory packed using the LZW compressing algorithm. As buffer it uses the screen memory.
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