chrissy
/
P8000
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

STATUS: 17% 

0000 T _sureg		compatible
    00e8 T _estabur		functional compatible:
    				uses different temp. reg.
    01ae T _sestabur		not compatible
    0296 T _segureg		not existent
    0438 T _ldsdr		not existent
    0548 T _prmmu		not existent
This commit is contained in:
Oliver Lehmann 2008-05-25 19:36:24 +00:00
parent 1162549bf7
commit 644c7746a5
1 changed files with 46 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

50
WEGA/src/uts/sys/ureg.c
View File

@ -46,7 +46,7 @@ sureg()
if(u.u_segmented || inb(SCR)&0x0004) if(u.u_segmented || inb(SCR)&0x0004)
panic("sureg: user is segmented"); panic("sureg: user is segmented");
u.u_segmts[USEG].sg_base = u.u_procp->p_addr+10; u.u_segmts[USEG].sg_base = u.u_procp->p_addr+USIZE;
u.u_segmts[NUSEGS-1].sg_base = (u.u_segmts[USEG].sg_limit + u.u_segmts[USEG].sg_base + 1) u.u_segmts[NUSEGS-1].sg_base = (u.u_segmts[USEG].sg_limit + u.u_segmts[USEG].sg_base + 1)
- u.u_segmts[NUSEGS-1].sg_limit; - u.u_segmts[NUSEGS-1].sg_limit;
textp = u.u_procp->p_textp; textp = u.u_procp->p_textp;
@ -74,13 +74,55 @@ sureg()
* The last argument determines whether the text * The last argument determines whether the text
* segment is read-write or read-only. * segment is read-write or read-only.
*/ */
estabur(nt, nd, ns, sep, xrw) estabur(nt, nd, ns, sep)
unsigned nt, nd, ns; register unsigned nt, nd, ns;
{ {
/*FIXME: the 3rd test should be done in r5, not r2 */
if(((nt > 0x100 || (nd+ns) > 0x00ff)) || (maxmem < nt+nd+ns+USIZE)) {
u.u_error = ENOMEM;
return(-1);
}
u.u_nsucode.sg_limit = (!nt?0:nt-1);
u.u_segmts[USEG].sg_limit = (!nd?0:nd-1);
u.u_segmts[NUSEGS-1].sg_limit = (!ns?0:-ns+0x100);
u.u_nsucode.sg_attr = (!nt?0x14:sep); /*FIXME: use r3 here instead of r2 */
u.u_segmts[USEG].sg_attr = (!nd?0x14:0); /*FIXME: use r2 here instead of r3 */
u.u_segmts[NUSEGS-1].sg_attr = (!ns?0x14:0x20);
sureg();
return(0);
} }
sestabur() sestabur(nt, nd, ns, sep)
register unsigned nt;
register unsigned ns;
register unsigned sep;
{ {
int foo2;
if(nt > 0x100) {
u.u_error = ENOMEM;
return(-1);
}
foo2 = nd&LONGMASK;
if(sep>0x0080) {
u.u_error = ENOEXEC;
return(-1);
}
if(foo2 == u.u_stakseg) {
u.u_segmts[NUSEGS-1].sg_limit = (!nt?0:-nt+0x100);
u.u_segmts[NUSEGS-1].sg_attr = (!nt?0x20:-nt+0x14);
return(0);
}
/*FIXME: and now the whole thing is missing.... */
return(0);
} }
segureg() segureg()