The error restarts

THE 'ERROR' RESTARTS
The following 32 routines consist each of a call to the +D error routine directly
followed by the error byte.

1644 REP_0      RST  #20,DISC_ERR
1645            DEFB #00                 'Nonsense in G+DOS'
1646 REP_1      RST  #20,DISC_ERR
1647            DEFB #01                 'Nonsense in GNOS'
1648 REP_2      RST  #20,DISC_ERR
1649            DEFB #02                 'Statement END error'
164A REP_3      RST  #20,DISC_ERR
164B            DEFB #03                 'BREAK requested'
164C REP_4      RST  #20,DISC_ERR
164D            DEFB #04                 ',SECTOR error'
164E REP_5      RST  #20,DISC_ERR
164F            DEFB #05                 'FORMAT data lost'
1650 REP_6      RST  #20,DISC_ERR
1651            DEFB #06                 'CHECK DISC in drive'
1652 REP_7      RST  #20,DISC_ERR
1653            DEFB #07                 'No "+ SYS " file'
1654 REP_8      RST  #20,DISC_ERR
1655            DEFB #08                 'Invalid FILE NAME'
1656 REP_9      RST  #20,DISC_ERR
1657            DEFB #09                 'Invalid STATION'
1658 REP_10     RST  #20,DISC_ERR
1659            DEFB #0A                 'Invalid DEVICE'
165A REP_11     RST  #20,DISC_ERR
165B            DEFB #0B                 'VARIABLE not found'
165C REP_12     RST  #20,DISC_ERR
165D            DEFB #0C                 'VERIFY failed'
165E REP_13     RST  #20,DISC_ERR
165F            DEFB #0D                 'Wrong FILE type'
1660 REP_14     RST  #20,DISC_ERR
1661            DEFB #0E                 'MERGE error'
1662 REP_15     RST  #20,DISC_ERR
1663            DEFB #0F                 'CODE error'
1664 REP_16     RST  #20,DISC_ERR
1665            DEFB #10                 'PUPIL set'
1666 REP_17     RST  #20,DISC_ERR
1667            DEFB #11                 'Invalid CODE'
1668 REP_18     RST  #20,DISC_ERR
1669            DEFB #12                 'Reading a WRITE file'
166A REP_19     RST  #20,DISC_ERR
166B            DEFB #13                 'Writing a READ file'
166C REP_20     RST  #20,DISC_ERR
166D            DEFB #14                 'O.K. G+DOS'
166E REP_21     RST  #20,DISC_ERR
166F            DEFB #15                 'Network OFF'
1670 REP_22     RST  #20,DISC_ERR
1671            DEFB #16                 'Wrong DRIVE'
1672 REP_23     RST  #20,DISC_ERR
1673            DEFB #17                 'Disc WRITE protected'
1674 REP_24     RST  #20,DISC_ERR
1675            DEFB #18                 'Not enough SPACE on disc'
1676 REP_25     RST  #20,DISC_ERR
1677            DEFB #19                 'Directory FULL'
1678 REP_26     RST  #20,DISC_ERR
1679            DEFB #1A                 'File NOT FOUND'
167A REP_27     RST  #20,DISC_ERR
167B            DEFB #1B                 'END of file'
167C REP_28     RST  #20,DISC_ERR
167D            DEFB #1C                 'File NAME used'
167E REP_29     RST  #20,DISC_ERR
167F            DEFB #1D                 'NO G+DOS loaded'
1680 REP_30     RST  #20,DISC_ERR
1681            DEFB #1E                 'STREAM used'
1682 REP_31     RST  #20,DISC_ERR
1683            DEFB #1F                 'CHANNEL used'