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- /* System calls. */
- #define SEND 1 /* function code for sending messages */
- #define RECEIVE 2 /* function code for receiving messages */
- #define BOTH 3 /* function code for SEND + RECEIVE */
- #define ANY (NR_PROCS+100) /* receive(ANY, buf) accepts from any source */
- /* Task numbers, function codes and reply codes. */
- #define HARDWARE -1 /* used as source on interrupt generated msgs */
- #define SYSTASK -2 /* internal functions */
- # define SYS_XIT 1 /* fcn code for sys_xit(parent, proc) */
- # define SYS_GETSP 2 /* fcn code for sys_sp(proc, &new_sp) */
- # define SYS_SIG 3 /* fcn code for sys_sig(proc, sig) */
- # define SYS_FORK 4 /* fcn code for sys_fork(parent, child) */
- # define SYS_NEWMAP 5 /* fcn code for sys_newmap(procno, map_ptr) */
- # define SYS_COPY 6 /* fcn code for sys_copy(ptr) */
- # define SYS_EXEC 7 /* fcn code for sys_exec(procno, new_sp) */
- # define SYS_TIMES 8 /* fcn code for sys_times(procno, bufptr) */
- # define SYS_ABORT 9 /* fcn code for sys_abort() */
- #ifdef ATARI_ST
- # define SYS_FRESH 10 /* fcn code for sys_fresh() */
- #endif
- #define CLOCK -3 /* clock class */
- # define SET_ALARM 1 /* fcn code to CLOCK, set up alarm */
- # define CLOCK_TICK 2 /* fcn code for clock tick */
- # define GET_TIME 3 /* fcn code to CLOCK, get real time */
- # define SET_TIME 4 /* fcn code to CLOCK, set real time */
- # define REAL_TIME 1 /* reply from CLOCK: here is real time */
- #define MEM -4 /* /dev/ram, /dev/(k)mem and /dev/null class */
- # define RAM_DEV 0 /* minor device for /dev/ram */
- # define MEM_DEV 1 /* minor device for /dev/mem */
- # define KMEM_DEV 2 /* minor device for /dev/kmem */
- # define NULL_DEV 3 /* minor device for /dev/null */
- #define FLOPPY -5 /* floppy disk class */
- #define WINCHESTER -6 /* winchester (hard) disk class */
- # define DISKINT 1 /* fcn code for disk interupt */
- # define DISK_READ 3 /* fcn code to DISK (must equal TTY_READ) */
- # define DISK_WRITE 4 /* fcn code to DISK (must equal TTY_WRITE) */
- # define DISK_IOCTL 5 /* fcn code for setting up RAM disk */
- #define TTY -7 /* terminal I/O class */
- #define PRINTER -8 /* printer I/O class */
- # define TTY_CHAR_INT 1 /* fcn code for tty input interrupt */
- # define TTY_O_DONE 2 /* fcn code for tty output done */
- # define TTY_READ 3 /* fcn code for reading from tty */
- # define TTY_WRITE 4 /* fcn code for writing to tty */
- # define TTY_IOCTL 5 /* fcn code for ioctl */
- # define SUSPEND -998 /* used in interrupts when tty has no data */
- /* Names of message fields for messages to CLOCK task. */
- #define DELTA_TICKS m6_l1 /* alarm interval in clock ticks */
- #define FUNC_TO_CALL m6_f1 /* pointer to function to call */
- #define NEW_TIME m6_l1 /* value to set clock to (SET_TIME) */
- #define CLOCK_PROC_NR m6_i1 /* which proc (or task) wants the alarm? */
- #define SECONDS_LEFT m6_l1 /* how many seconds were remaining */
- /* Names of message fields used for messages to block and character tasks. */
- #define DEVICE m2_i1 /* major-minor device */
- #define PROC_NR m2_i2 /* which (proc) wants I/O? */
- #define COUNT m2_i3 /* how many bytes to transfer */
- #define POSITION m2_l1 /* file offset */
- #define ADDRESS m2_p1 /* core buffer address */
- /* Names of message fields for messages to TTY task. */
- #define TTY_LINE m2_i1 /* message parameter: terminal line */
- #define TTY_REQUEST m2_i3 /* message parameter: ioctl request code */
- #define TTY_SPEK m2_l1 /* message parameter: ioctl speed, erasing */
- #define TTY_FLAGS m2_l2 /* message parameter: ioctl tty mode */
- /* Names of messages fields used in reply messages from tasks. */
- #define REP_PROC_NR m2_i1 /* # of proc on whose behalf I/O was done */
- #define REP_STATUS m2_i2 /* bytes transferred or error number */
- /* Names of fields for copy message to SYSTASK. */
- #define SRC_SPACE m5_c1 /* T or D space (stack is also D) */
- #define SRC_PROC_NR m5_i1 /* process to copy from */
- #define SRC_BUFFER m5_l1 /* virtual address where data come from */
- #define DST_SPACE m5_c2 /* T or D space (stack is also D) */
- #define DST_PROC_NR m5_i2 /* process to copy to */
- #define DST_BUFFER m5_l2 /* virtual address where data go to */
- #define COPY_BYTES m5_l3 /* number of bytes to copy */
- /* Field names for accounting, SYSTASK and miscellaneous. */
- #define USER_TIME m4_l1 /* user time consumed by process */
- #define SYSTEM_TIME m4_l2 /* system time consumed by process */
- #define CHILD_UTIME m4_l3 /* user time consumed by process' children */
- #define CHILD_STIME m4_l4 /* system time consumed by proces children */
- #define PROC1 m1_i1 /* indicates a process */
- #define PROC2 m1_i2 /* indicates a process */
- #define PID m1_i3 /* process id passed from MM to kernel */
- #define STACK_PTR m1_p1 /* used for stack ptr in sys_exec, sys_getsp */
- #define PR m6_i1 /* process number for sys_sig */
- #define SIGNUM m6_i2 /* signal number for sys_sig */
- #define FUNC m6_f1 /* function pointer for sys_sig */
- #define MEM_PTR m1_p1 /* tells where memory map is for sys_newmap */
- #define CANCEL 0 /* general request to force a task to cancel */
- #define SIG_MAP m1_i2 /* used by kernel for passing signal bit map */
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