i86/mtx/mtx/samples/LAST/USER/ucode.c

   1 // ucode.c file : Interface to MTX kernel: syscall functions
   2
   3 #include "type.h"
   4
   5 #include "uio.c"    // YOUR prints, printi, printx, printf functions
   6
   7 int getc()
   8 {
   9    int c;
  10    read(0, &c, 1);
  11    if (c==4) return 0;
  12    return (c&0x7F);
  13 }
  14
  15 int putc(c) int c;
  16 {
  17    write(1, &c, 1);
  18    if (c=='\n')
  19       putc('\r');
  20 }
  21
  22
  23 int getpid()
  24 {
  25    return syscall(0,0,0);
  26 }
  27
  28 int fork()
  29 {
  30    return syscall(5, 0, 0);
  31 }
  32
  33 int exec(file) char *file;
  34 {
  35    return syscall(6, file, 0);
  36 }
  37
  38
  39 int wait(status) int *status;
  40 {
  41   return syscall(20, status, 0);
  42 }
  43
  44 int mkdir(name) char *name;
  45 {
  46     return syscall(21, name, 0);
  47 }
  48
  49 int rmdir(name) char *name;
  50 {
  51     return syscall(22, name, 0);
  52 }
  53
  54 int creat(name) char *name;
  55 {
  56     return syscall(23, name, 0);
  57 }
  58
  59 int rm(name) char *name;
  60 {
  61     return syscall(24, name[1], 0);
  62 }
  63
  64
  65 int chdir(name) char *name;
  66 {
  67     return syscall(26, name, 0);
  68 }
  69
  70 int open(file, mode) char *file; int mode;
  71 {
  72     return syscall(28, file, mode);
  73 }
  74
  75 int close(fd) int fd;
  76 {
  77     return syscall(29, fd);
  78 }
  79
  80 long lseek(fd, offset, ww) int fd; ulong offset
  81 {
  82     return syscall(30, fd, (ulong)offset);
  83 }
  84
  85 int chmod(mode, filename) int mode; char *filename // mode=0xxx in Octal form
  86 {
  87     return syscall(33, mode, filename);
  88 }
  89
  90 int chown(uid, filename) int uid; char *filename;
  91 {
  92     return syscall(34, uid, filename);
  93 }
  94
  95 int read(fd, buf, nbytes) int fd, nbytes; char *buf;
  96 {
  97     return syscall(35, fd, buf, nbytes);
  98 }
  99
 100 int write(fd, buf, nbytes) int fd, nbytes; char *buf;
 101 {
 102     return syscall(36, fd, buf, nbytes);
 103 }
 104
 105 int stat(filename, sPtr) char *filename; struct stat *sPtr;
 106 {
 107    return syscall(38, filename, sPtr);
 108 }
 109
 110 int getcwd(cwdname) char *cwdname;
 111 {
 112     syscall(39, cwdname, 0);
 113 }
 114
 115 int pipe(pd) int *pd;
 116 {
 117     return syscall(40, pd, 0);
 118 }
 119
 120 int dup(fd) int fd;
 121 {
 122    return syscall(41, fd, 0);
 123 }
 124
 125 int dup2(fd,gd) int fd, gd;
 126 {
 127    return syscall(42, fd, gd);
 128 }
 129
 130 int ps()
 131 {
 132    return syscall(43,0,0);
 133 }
 134
 135 int getuid()
 136 {
 137   return syscall(44, 0);
 138 }
 139
 140 int setuid(uid) int uid;
 141 {
 142   return syscall(45, uid);
 143 }
 144
 145 int gettty(s) char *s;
 146 {
 147   return syscall(46, s, 0,0);
 148 }
 149
 150 int settty(s) char *s;
 151 {
 152   return syscall(47, s, 0,0);
 153 }
 154
 155 int fstat(fd, sPtr) int fd; struct stat *sPtr;
 156 {
 157     return syscall(48, fd, sPtr);
 158 }
 159
 160
 161 int kill(sig, pid) int sig, pid;
 162 {
 163   return syscall(50, sig, pid);
 164 }
 165
 166 int signal(sig, catcher) ushort sig, catcher;
 167 {
 168   return syscall(51, sig, catcher);
 169 }
 170
 171 int sleep(t) ushort t;
 172 {
 173   return syscall(52, t);
 174 }
 175
 176 int settimer(t) ushort t;
 177 {
 178   return syscall(53, t);
 179 }
 180
 181
 182 int exit(ecode) ushort ecode;
 183 {
 184    syscall(99, ecode, 0);
 185 }
 186