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-
- ;
- ; Library file of commonly used symbols
- ;
- NULL = 00H
- CR = 0DH
- LF = 0AH
- FM_FD = 0CH
- CTRL_C = 03H
- ACK = 06H
- NAK = 21H
- SPACE = 20H
- TAB = 09H
- BACKSP = 08H
- BELL = 07H
- XON = 11H
- XOFF = 13H
- SLASH = '/'
-
- ;
- ; Predefined DOS handles
- ;
- STDIN = 0
- STDOUT = 1
- STDERR = 2
- STDAUX = 3
- STDPRN = 4
-
- ;
- ; DOS functions frequently used
- ;
- $WRITE_FILE = 40H ; Write to file function
- $READ_FILE = 3FH ; Read from file
- $CREATE_FILE = 3CH ; Create file
- $OPEN_FILE = 3DH ; Open existing file
- $CLOSE_FILE = 3EH ; Close file
- $DELETE_FILE = 41H ; Delete file
- $LSEEK_FILE = 42H ; Logical seek in file
- $ALLOC_MEM = 48H
- $SETBLK_MEM = 4AH
- $FREE_MEM = 49H
- $DOS_EXIT = 4CH
-
- CMD_LINE = 80H ; Address of command line in PSP
- DEF_FCB1 = 5CH ; " " 1st default FCB
- DEF_FCB2 = 6CH ; " " 2nd " "