Starting from reset, I send the following input block in static mode, 0x18 0x19 0x72 0x04 0x00 (which is compression of 'A'), then set imode == DECOMPRESS in next cycle and imode=IDLE for all cycles onwards, the o_oprogress never increments. When I send three blocks 0x18 0x19 0x72 0x04 0xC8 0x09 0x04 0x67 0x40 0x00 (one block for each 'A', 'B' and 'C'), and then decompress, the output is 0x41 ('A'), 0x42 ('B') and output for 'C' is never produced.