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====== CP/M LIBRARY (cpm.h) ======

^ Version    | all                                                                                                             |
^ Header     | [[https://raw.githubusercontent.com/z88dk/z88dk/master/include/cpm.h|{z88dk}/include/cpm.h]]        |
^ Source     | [[https://github.com/z88dk/z88dk/tree/master/libsrc/cpm/|{z88dk}/libsrc/cpm]]                                   |
^ Include    | #include <cpm.h>                                                                                                |
^ Linking    | n/a                                                                                                             |
^ Compile    | n/a                                                                                                             |
^ Supported  | [[platform:cpm|CP/M]]                                                                                           |
^ Comments   | n/a                                                                                                             |

The CP/M library contains functions specific to the CP/M Operating system.


====== CP/M Functions =======

==== bdos (int func, int arg) ====

This is a quite common function in 


==== bios (int func, int arg, int arg2) ====




====== File support =======

==== *getfcb (void) ====

==== fcb *getfcb (void) ====

==== setfcb (struct fcb *fc, unsigned char *name) ====

Fill up the filename stuff


==== parsefcb (struct fcb *fc, unsigned char *name) ====

Write the file offset into the FCB


====  putoffset (char *dest, long val) ==== 


==== setuid(u) ====
Set userid

==== getuid() ====
Get userid

==== _putoffset (unsigned char *where, long offset) ====

Write an offset as 3 bytes


==== clearfcb(f)====

Mark an FCB as being unused


==== int change_volume (int volume) ====

Disk control (as for OSCA FLOS)


==== int get_current_volume() ====

Current 'drive' (0..n)


====== Directory related commands ======

This function set is also availble for OSCA FLOS target platform

==== int dir_move_first() ====


==== int dir_move_next() ====



==== int dir_get_entry_type() ====


Result:  0=normal, 1=directory

==== char *dir_get_entry_name() ====



==== unsigned long dir_get_entry_size() ====



==== char *get_dir_name() ==== 



==== Directory stuff ====

    struct fcb *fc_dir;

    char fc_dirpos;

    char *fc_dirbuf;



====== Amstrad XBIOS specific commands ======

Extensions introduced by Amstrad in its CP/M Plus implementation, used also on the Spectrum +3.


==== a_statusline(int onoff); ====

Enable/disable the bottom status line, no effect on some version.


==== a_keyspeed(int delay, int repeat); ====
Set keyboard speed

==== a_border(int color); ====
Set border color, 6 bit color encoding, (or 8 bit if ULA256.FID is installed)

====  a_paper(int color); ====
Set paper color, 6 bit color encoding, (OS patch needed or 8 bit if ULA256.FID is installed)

==== a_ink(int color); ====
Set ink color, 6 bit color encoding, (OS patch needed or 8 bit if ULA256.FID is installed)

==== int a_curx(); ====
Get x cursor position in viewport

==== int a_cury(); ====
Get y cursor position in viewport

==== int a_machine(); ====

Get the machine type on which the Amstrad CP/M implementation is running


    #define M_CPC        0    // CPC6128
    #define M_PCW        1    // PCW8000/9000/10 series
    #define M_SPECTRUM   3    // Spectrum +3
    #define M_PCW16     65    // (65 = 'A', ie "Anne")


==== int a_machinever(); ====
Get Machine HW version (or HW details on recent PCW versions)

==== int a_biosver(); ====
Get BIOS version

==== int a_memsize(); ====
Get system memory size

==== int a_driveb(); ====
Are 2 drives available ?

==== int a_serialport(); ====
Is the Serial Port available ?
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