BSD 4_3_Tahoe development

Work on file usr/src/games/games.vax/compat/unix7sys.h
Work on file usr/src/games/games.vax/compat/unixstart.c

Synthesized-from: CSRG/cd2/4.3tahoe

diff --git a/usr/src/games/games.vax/compat/unix7sys.h b/usr/src/games/games.vax/compat/unix7sys.h
new file mode 100644 (file)
index 0000000..5bde20f
--- /dev/null
+++ b/usr/src/games/games.vax/compat/unix7sys.h
@@ -0,0 +1,122 @@
+/*
+ *     unix7sys.h      4.3     84/05/05
+ */
+
+/* From Lou Salkind: compat/RCS/unix7sys.h,v 1.2 84/01/31 13:34:22 */
+
+#define        NSYSTRAPS       64
+#define        NSIGS   13
+#define        ILLSYS  -1
+#define        NORMRET 0
+#define        LONGRET 1
+#define        TWORET  2
+#define        FORK    2
+#define        READ    3
+#define        WRITE   4
+#define        OPEN    5
+#define        CLOSE   6
+#define        WAIT    7
+#define        CREAT   8
+#define        LINK    9
+#define        UNLNK   10
+#define EXEC   11
+#define        CHDIR   12
+#define        TIME    13
+#define        MKNOD   14
+#define        BRK     17
+#define        STAT    18
+#define        SEEK    19
+#define        SETUID  23
+#define        GETUID  24
+#define        STIME   25
+#define        ALARM   27
+#define        FSTAT   28
+#define        PAUSE   29
+#define        UTIME   30
+#define        NICE    34
+#define        FTIME   35
+#define        SETPGRP 39
+#define        PIPE    42
+#define        TIMES   43
+#define        SETGID  46
+#define        GETGID  47
+#define        SIG     48
+#define        IOCTL   54
+#define        EXECE   59
+/*
+ *     The numerical entries in the following table are
+ *     really composed of 3 parts.
+ *     The first entry in each row indicates the number
+ *     of register arguments for the system call, while
+ *     the 2nd position is the number of memory arguments
+ *     the 3rd position is LONGRET if the return is a long (r0 and r1)
+ *     or is TWORET if the return is 2 ints ala pipe
+ *     otherwise it is NORMRET.
+ */
+int    sysargs[][3] =
+{
+       0, 0, NORMRET,          /*  0 = indir */
+       1, 0, NORMRET,          /*  1 = exit */
+       0, 0, NORMRET,          /*  2 = fork */
+       1, 2, NORMRET,          /*  3 = read */
+       1, 2, NORMRET,          /*  4 = write */
+       0, 2, NORMRET,          /*  5 = open */
+       1, 0, NORMRET,          /*  6 = close */
+       0, 0, TWORET,           /*  7 = wait */
+       0, 2, NORMRET,          /*  8 = creat */
+       0, 2, NORMRET,          /*  9 = link */
+       0, 1, NORMRET,          /* 10 = unlink */
+       0, 2, NORMRET,          /* 11 = exec */
+       0, 1, NORMRET,          /* 12 = chdir */
+       0, 0, LONGRET,          /* 13 = time */
+       0, 3, NORMRET,          /* 14 = mknod */
+       0, 2, NORMRET,          /* 15 = chmod */
+       0, 3, NORMRET,          /* 16 = chown; now 3 args */
+       0, 1, NORMRET,          /* 17 = break */
+       0, 2, NORMRET,          /* 18 = stat */
+       1, 3, LONGRET,          /* 19 = seek; now 3 args */
+       0, 0, NORMRET,          /* 20 = getpid */
+       0, 3, NORMRET,          /* 21 = mount */
+       0, 1, NORMRET,          /* 22 = umount */
+       1, 0, NORMRET,          /* 23 = setuid */
+       0, 0, TWORET,           /* 24 = getuid */
+       2, 0, NORMRET,          /* 25 = stime */
+       1, 3, NORMRET,          /* 26 = ptrace */
+       1, 0, NORMRET,          /* 27 = alarm */
+       1, 1, NORMRET,          /* 28 = fstat */
+       0, 0, NORMRET,          /* 29 = pause */
+       0, 2, NORMRET,          /* 30 = utime */
+       1, 1, NORMRET,          /* 31 = stty */
+       1, 1, NORMRET,          /* 32 = gtty */
+       0, 2, NORMRET,          /* 33 = access */
+       1, 0, NORMRET,          /* 34 = nice */
+       0, 1, NORMRET,          /* 35 = ftime; formerly sleep */
+       0, 0, NORMRET,          /* 36 = sync */
+       1, 1, NORMRET,          /* 37 = kill */
+       0, 0, NORMRET,          /* 38 = switch; inoperative */
+       0, 0, NORMRET,          /* 39 = setpgrp (not in yet) */
+       ILLSYS, 0, NORMRET,     /* 40 = tell (obsolete) */
+       2, 0, NORMRET,          /* 41 = dup */
+       0, 0, TWORET,           /* 42 = pipe */
+       0, 1, NORMRET,          /* 43 = times */
+       0, 4, NORMRET,          /* 44 = prof */
+       ILLSYS, 0, NORMRET,     /* 45 = unused */
+       1, 0, NORMRET,          /* 46 = setgid */
+       0, 0, TWORET,           /* 47 = getgid */
+       0, 2, NORMRET,          /* 48 = sig */
+       ILLSYS, 0, NORMRET,     /* 49 = reserved for USG */
+       ILLSYS, 0, NORMRET,     /* 50 = reserved for USG */
+       0, 1, NORMRET,          /* 51 = turn acct off/on */
+       0, 3, NORMRET,          /* 52 = set user physical addresses */
+       0, 1, NORMRET,          /* 53 = lock user in core */
+       0, 3, NORMRET,          /* 54 = ioctl */
+       ILLSYS, 0, NORMRET,     /* 55 = readwrite (in abeyance) */
+       0, 4, NORMRET,          /* 56 = creat mpx comm channel */
+       ILLSYS, 0, NORMRET,     /* 57 = reserved for USG */
+       ILLSYS, 0, NORMRET,     /* 58 = reserved for USG */
+       0, 3, NORMRET,          /* 59 = exece */
+       0, 1, NORMRET,          /* 60 = umask */
+       0, 1, NORMRET,          /* 61 = chroot */
+       ILLSYS, 0, NORMRET,     /* 62 = x */
+       ILLSYS, 0, NORMRET      /* 63 = used internally */
+};

diff --git a/usr/src/games/games.vax/compat/unixstart.c b/usr/src/games/games.vax/compat/unixstart.c
new file mode 100644 (file)
index 0000000..b356ada
--- /dev/null
+++ b/usr/src/games/games.vax/compat/unixstart.c
@@ -0,0 +1,112 @@
+#ifndef lint
+static char sccsid[] = "       unixstart.c     4.2     84/05/05        ";
+#endif
+
+/* From Lou Salkind: compat/RCS/unixstart.c,v 1.2 84/01/31 13:34:27 */
+
+/*     Start up a version 6 or version 7 pdp-11 UNIX compatability mode
+ *     program. Must set up the memory layout with args etc.
+ *     Art Wetzel      August 1979
+ */
+#include <stdio.h>
+#include "defs.h"
+#define        MAXARGS 100
+start(argv, envp) unsigned char **argv, **envp; {
+       register unsigned char *sp, *ap;
+       register unsigned short *ssp;
+       register int i, argc, envc;
+       unsigned char *envps[MAXARGS], *argps[MAXARGS], **av, *p1, *p2;
+       extern unsigned char *progname, *nameend;
+       /* set up initial memory layout for unix */
+       /* set stack pointer to top of memory */
+       sp = memsiz;
+#ifdef V7UNIX
+       /* zero top 2 bytes */
+       *(--sp) = 0;
+       *(--sp) = 0;
+       /* point to environment pointer list */
+       av = envp;
+       envc = 0;
+       /* count up number of env elements */
+       while(*(av++)) envc++;
+       /* last UNIX V7 env ptr is 0 */
+       envps[envc] = (unsigned char *)0;
+       /* copy actual environment (assume byte text) - last first */
+       for(i=envc-1; i>=0; i--) {
+               ap = envp[i];
+               while(*(ap++)) ;
+               while(ap != envp[i]) *(--sp) = *(--ap);
+               /* force stack word alignment - required per arg in v7 */
+               if((int)sp & 1) {
+                       ap = sp--;
+                       while((*(ap-1) = *ap)) ap++;
+               }
+               envps[i] = sp;
+       }
+#endif
+       /* point to argument pointer list */
+       av = argv;
+       argc = 0;
+       /* count up number of args */
+       while(*(av++)) argc++;
+#ifdef V7UNIX
+       /* last UNIX V7 arg ptr is 0 */
+       argps[argc] = (unsigned char *)0;
+#endif
+#ifdef V6UNIX
+       /* last UNIX V6 arg ptr is -1 */
+       argps[argc] = (unsigned char *)-1;
+#endif
+       /* copy actual arguments (assume byte text) - last first */
+       for(i=argc-1; i>=0; i--) {
+               ap = argv[i];
+               while(*(ap++)) ;
+               while(ap != argv[i]) *(--sp) = *(--ap);
+               /* force stack word alignment - required per arg in v7 */
+               if((int)sp & 1) {
+                       ap = sp--;
+                       while((*(ap-1) = *ap)) ap++;
+               }
+               argps[i] = sp;
+       }
+       ssp = (unsigned short *)sp;
+#ifdef V7UNIX
+       /* set up environment pointers */
+       for(i=envc; i>=0; i--) {
+               *(--ssp) = (short)(long)envps[i];
+       }
+#endif
+       /* set up argument pointers */
+       for(i=argc; i>=0; i--) {
+               *(--ssp) = (short)(long)argps[i];
+       }
+       /* then argument count */
+       *(--ssp) = argc;
+       /* set up stack pointer */
+       regs[6] = (int)ssp;
+       /* set up a psl with cleared condition codes */
+       psl = 0x83c00000;
+       /* copy out part of the program name and args where ps can get them */
+       /* flag it with a * so it shows up as a compatability mode process */
+       /* check for case with no env and reset nameend */
+       if(nameend < progname) nameend = (unsigned char *)2147483647;
+       for(p1=progname, *p1++ = '*', i=1, p2=argv[0]; p1<nameend; p1++) {
+               if((*p1 = *p2))
+                       p2++;
+               else if(argv[i])
+                       p2 = argv[i++];
+               else break;
+       }
+       while(p1 < nameend) *p1++ = ' ';
+       *p1 = 0;
+       /* clear out registers other than sp */
+       regs[0] = 0;
+       regs[1] = 0;
+       regs[2] = 0;
+       regs[3] = 0;
+       regs[4] = 0;
+       regs[5] = 0;
+       /* finally get around to actually starting up in compatability mode */
+       incompat++;
+       compat();
+}