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vi: implement _nsec syscall

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This commit is contained in:
mischief 2014-09-13 06:07:57 -07:00
parent c8008e1ffd
commit 8348a233ae
1 changed files with 19 additions and 1 deletions
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20
sys/src/cmd/vi/syscall.c
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@ -65,6 +65,7 @@ char *sysctab[]={
[AWAIT] "Await", [AWAIT] "Await",
[PREAD] "Pread", [PREAD] "Pread",
[PWRITE] "Pwrite", [PWRITE] "Pwrite",
[_NSEC] "_nsec",
}; };
void sys1(void) { Bprint(bioout, "No system call %s\n", sysctab[reg.r[REGRET]]); exits(0); } void sys1(void) { Bprint(bioout, "No system call %s\n", sysctab[reg.r[REGRET]]); exits(0); }
@ -638,6 +639,22 @@ syssegflush(void)
reg.r[REGRET] = 0; reg.r[REGRET] = 0;
} }
void
sys_nsec(void)
{
ulong ta;
vlong t;
ta = getmem_w(reg.r[REGSP]+4);
if(sysdbg)
itrace("_nsec(%lux)", ta);
t = nsec();
putmem_w(ta, t >> 32);
putmem_w(ta+4, t);
}
void sysfversion(void) { Bprint(bioout, "No system call %s\n", sysctab[reg.r[REGRET]]); exits(0); } void sysfversion(void) { Bprint(bioout, "No system call %s\n", sysctab[reg.r[REGRET]]); exits(0); }
void sysfsession(void) { Bprint(bioout, "No system call %s\n", sysctab[reg.r[REGRET]]); exits(0); } void sysfsession(void) { Bprint(bioout, "No system call %s\n", sysctab[reg.r[REGRET]]); exits(0); }
void sysfauth(void) { Bprint(bioout, "No system call %s\n", sysctab[reg.r[REGRET]]); exits(0); } void sysfauth(void) { Bprint(bioout, "No system call %s\n", sysctab[reg.r[REGRET]]); exits(0); }
@ -710,6 +727,7 @@ void (*systab[])(void) ={
[AWAIT] sysawait, [AWAIT] sysawait,
[PREAD] syspread, [PREAD] syspread,
[PWRITE] syspwrite, [PWRITE] syspwrite,
[_NSEC] sys_nsec,
}; };
void void
@ -719,7 +737,7 @@ Ssyscall(ulong inst)
USED(inst); USED(inst);
call = reg.r[REGRET]; call = reg.r[REGRET];
if(call < 0 || call > PWRITE || systab[call] == nil) { if(call < 0 || call > _NSEC || systab[call] == nil) {
Bprint(bioout, "Bad system call\n"); Bprint(bioout, "Bad system call\n");
dumpreg(); dumpreg();
} }