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STATUS: 33% 

0000 T _sureg		compatible
    00e8 T _estabur		functional compatible:
    				uses different temp. reg.
    01ae T _sestabur		not compatible
    0296 T _segureg		functional compatible:
    				uses different temp. reg.
    0438 T _ldsdr		compatible
    0548 T _prmmu		not existent
This commit is contained in:
Oliver Lehmann 2008-05-28 20:00:34 +00:00
parent 1791f01178
commit e591f182a8
1 changed files with 46 additions and 10 deletions
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56
WEGA/src/uts/sys/ureg.c
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@ -95,29 +95,34 @@ register unsigned nt, nd, ns;
return(0);
}
/*FIXME: The function works from the functional point of view, but in the original
* object the stkseg stuff at the beginning shows that at least one int is
* used - which cannot be, because if stakseg is an int the work with stackseg
* is no longer compatible - same goes with nd. but if for example stakseg is
* declared as int, nt, ns and sep are assigned correctly so that r12 get used
* otherwise r3 gets used instead of r12
*/
sestabur(nt, nd, ns, sep)
register unsigned nt;
register unsigned nt, ns, sep;
char nd;
register unsigned ns;
register unsigned sep;
{
int stakseg;
char stakseg;
if(nt > 256) {
u.u_error = ENOMEM;
return(-1);
}
stakseg = nd&LONGMASK;
stakseg = nd&STAK;
if(sep > 128) {
if(ns > 128) {
u.u_error = ENOEXEC;
return(-1);
}
if(stakseg == u.u_stakseg) {
u.u_segmts[NUSEGS-1].sg_limit = (!nt?0:-nt+256);
u.u_segmts[NUSEGS-1].sg_attr = (!nt?32:-nt+20);
u.u_segmts[NUSEGS-1].sg_attr = (!nt?20:32);
return(0);
}
@ -148,7 +153,7 @@ segureg()
caddr = 0;
for(i=0;i<u.u_nsegs;i++) {
segno = u.u_segno[i]&0x7f;
segno = u.u_segno[i]&STAK;
j = u.u_segmts[i].sg_attr&0x14;
if (u.u_segno[i] & 0x80){
u.u_segmts[i].sg_base = caddr;
@ -165,11 +170,42 @@ segureg()
loadsd(mmus,segno,&u.u_segmts[i]);
}
u.u_segmts[NUSEGS-1].sg_limit = addr - u.u_segmts[NUSEGS-1].sg_limit;
loadsd((u.u_stakseg<0x40?mmud:mmus),0x7f,&u.u_segmts[NUSEGS-1]);
loadsd((u.u_stakseg<0x40?mmud:mmus),STAK,&u.u_segmts[NUSEGS-1]);
}
ldsdr()
ldsdr(segno, sbase, slimit, sattr)
{
register struct segd *segmnt;
register int i;
segno &= STAK;
if(segno != u.u_stakseg) {
for(i=0;i<u.u_nsegs;i++) {
if((u.u_segno[i]&STAK) == segno)
break;
}
if(i == u.u_nsegs) {
u.u_error = ENOSEG;
return;
}
segmnt = &u.u_segmts[i];
} else {
segmnt = &u.u_segmts[NUSEGS-1];
}
getsd(segno<0x40?mmud:mmus,segno,segmnt);
if(sbase != 0xffff)
segmnt->sg_base = sbase;
if(slimit != 0xffff)
segmnt->sg_limit = ((segno == u.u_stakseg)?0x100-slimit:slimit-1);
if(sattr != 0xffff)
segmnt->sg_attr = sattr;
loadsd(segno<0x40?mmud:mmus,segno,segmnt);
}
prmmu()