diff options
Diffstat (limited to 'newlib/libc/sys/mmixware/sys/syscall.h')
| -rw-r--r-- | newlib/libc/sys/mmixware/sys/syscall.h | 148 |
1 files changed, 0 insertions, 148 deletions
diff --git a/newlib/libc/sys/mmixware/sys/syscall.h b/newlib/libc/sys/mmixware/sys/syscall.h deleted file mode 100644 index 15a2d1c09..000000000 --- a/newlib/libc/sys/mmixware/sys/syscall.h +++ /dev/null @@ -1,148 +0,0 @@ -/* syscall defines for MMIXware. - - Copyright (C) 2001, 2002 Hans-Peter Nilsson - - Permission to use, copy, modify, and distribute this software is - freely granted, provided that the above copyright notice, this notice - and the following disclaimer are preserved with no changes. - - THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR - IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED - WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - PURPOSE. */ - -/* These are the mmixware simulator calls that are of use in newlib. */ - -#define SYS_halt 0 -#define SYS_Fopen 1 -#define SYS_Fclose 2 -#define SYS_Fread 3 -#define SYS_Fwrite 6 -#define SYS_Fseek 9 -#define SYS_Ftell 10 - - -enum MMIX_filemode - { - TextRead = 0, - TextWrite = 1, - BinaryRead = 2, - BinaryWrite = 3, - BinaryReadWrite = 4 - }; - -#define N_MMIX_FILEHANDLES 32 - -/* We store a bitmap of allocated filehandles - _MMIX_allocated_filehandle[fileno] in an array. There are 32 of them. - Indexes 0, 1 and 2 are allocated from start. The reason we keep track - of them is that *we* have to allocate a filehandle when opening a file. - Had we got a filehandle from the simulator, we wouldn't have to keep - track of it. A value of 0 denotes a free handle. */ -extern unsigned char _MMIX_allocated_filehandle[N_MMIX_FILEHANDLES]; - -/* We use this file-handle number as a temporary; not used by usual file - I/O. */ -#define TMPFNO 127 - -/* Simulator call with one argument. Also used for zero-argument calls; - pass a zero as ARG1. Make the asm volatile so we can safely ignore the - return-value and only get the benefit from the supposed side-effect - without the asm being optimized away. */ -#define TRAP1i(FUN, ARG1) \ - ({ long ret_; \ - __asm__ __volatile__ \ - ("TRAP 0,%1,%2\n\tSET %0,$255" \ - : "=r" (ret_) : "i" (FUN), "i" (ARG1) \ - : "memory"); \ - ret_; \ - }) - -/* Helper macros to cope with the file-handle parameter to the simulator - being *constant*. We support up to 32 simultaneously open files. Make - the asm volatile so we can safely ignore the return-value and get the - benefit from the supposed side-effect without the asm being optimized - away. */ - -#define I3f(FUN, ARG1, N, ARGS) \ - if (ARG1 == N) \ - __asm__ __volatile__ \ - ("SET $255,%3\n\tTRAP 0,%1,%2\n\tSET %0,$255" \ - : "=r" (ret_) : "i" (FUN), "i" (N), "r" (ARGS) \ - : "memory") - -/* Using if:s rather than switches to help GCC optimize the rest away. */ -#define DO32(FUN, ARG1, ARGS) \ - I3f (FUN, ARG1, 0, ARGS); \ - else I3f (FUN, ARG1, 1, ARGS); \ - else I3f (FUN, ARG1, 2, ARGS); \ - else I3f (FUN, ARG1, 3, ARGS); \ - else I3f (FUN, ARG1, 4, ARGS); \ - else I3f (FUN, ARG1, 5, ARGS); \ - else I3f (FUN, ARG1, 6, ARGS); \ - else I3f (FUN, ARG1, 7, ARGS); \ - else I3f (FUN, ARG1, 8, ARGS); \ - else I3f (FUN, ARG1, 9, ARGS); \ - else I3f (FUN, ARG1, 10, ARGS); \ - else I3f (FUN, ARG1, 11, ARGS); \ - else I3f (FUN, ARG1, 12, ARGS); \ - else I3f (FUN, ARG1, 13, ARGS); \ - else I3f (FUN, ARG1, 14, ARGS); \ - else I3f (FUN, ARG1, 15, ARGS); \ - else I3f (FUN, ARG1, 16, ARGS); \ - else I3f (FUN, ARG1, 17, ARGS); \ - else I3f (FUN, ARG1, 18, ARGS); \ - else I3f (FUN, ARG1, 19, ARGS); \ - else I3f (FUN, ARG1, 20, ARGS); \ - else I3f (FUN, ARG1, 21, ARGS); \ - else I3f (FUN, ARG1, 22, ARGS); \ - else I3f (FUN, ARG1, 23, ARGS); \ - else I3f (FUN, ARG1, 24, ARGS); \ - else I3f (FUN, ARG1, 25, ARGS); \ - else I3f (FUN, ARG1, 26, ARGS); \ - else I3f (FUN, ARG1, 27, ARGS); \ - else I3f (FUN, ARG1, 28, ARGS); \ - else I3f (FUN, ARG1, 29, ARGS); \ - else I3f (FUN, ARG1, 30, ARGS); \ - else I3f (FUN, ARG1, 31, ARGS); \ - else \ - { \ - errno = EBADF; \ - return -1; \ - } - -#define TRAP1f(FUN, ARG1) \ - ({ long ret_; \ - DO32 (FUN, ARG1, 0); \ - ret_; \ - }) - -#define TRAP2f(FUN, ARG1, ARG2) \ - ({ long ret_; \ - DO32 (FUN, ARG1, ARG2); \ - ret_; \ - }) - -#define TRAP3f(FUN, ARG1, ARG2, ARG3) \ - ({ long ret_; \ - unsigned long args_[] \ - = { (unsigned long) (ARG2), (unsigned long) (ARG3) }; \ - DO32 (FUN, ARG1, args_); \ - ret_; \ - }) - -#ifndef __GNUC__ -/* Probably will not happen. Nevertheless... */ -# define UNIMPLEMENTED(MSG) -#else -# define UNIMPLEMENTED(MSG) UNIMPLEMENTEDi MSG -# define UNIMPLEMENTEDi(MSG, ARGS...) \ - do { \ - char buf[2000]; \ - sprintf (buf, "UNIMPLEMENTED %s in %s\n", __FUNCTION__, __FILE__); \ - write (2, buf, strlen (buf)); \ - sprintf (buf, MSG , ##ARGS); \ - write (2, buf, strlen (buf)); \ - write (2, "\n", 1); \ - } while (0) -#endif |