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STATUS: 99% 

0000 T _sureg		compatible
    00e8 T _estabur		compatible:
    01ae T _sestabur		compatible
    0296 T _segureg		99% compatible:
    				uses different temp. reg.
    0438 T _ldsdr		compatible
    0548 T _prmmu		compatible
This commit is contained in:
Oliver Lehmann 2008-06-06 18:36:11 +00:00
parent 6816b35569
commit c782b0df3b
1 changed files with 8 additions and 15 deletions
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23
WEGA/src/uts/sys/ureg.c
View File

@ -78,36 +78,29 @@ sureg()
estabur(nt, nd, ns, sep) estabur(nt, nd, ns, sep)
register unsigned nt, nd, ns; register unsigned nt, nd, ns;
{ {
if(nt > 0x100 || ((nd+ns) > 0x00ff || (nt+nd+ns+USIZE) > maxmem)) { if(nt > CPAS || ((nd+ns) > 0x00ff || (nt+nd+ns+USIZE) > maxmem)) {
u.u_error = ENOMEM; u.u_error = ENOMEM;
return(-1); return(-1);
} }
u.u_nsucode.sg_limit = (!nt?0:nt-1); u.u_nsucode.sg_limit = (!nt?0:nt-1);
u.u_segmts[USEG].sg_limit = (!nd?0:nd-1); u.u_segmts[USEG].sg_limit = (!nd?0:nd-1);
u.u_segmts[NUSEGS-1].sg_limit = (!ns?0:-ns+0x100); u.u_segmts[NUSEGS-1].sg_limit = (!ns?0:(CPAS-ns));
u.u_nsucode.sg_attr = (!nt?0x14:sep); /*FIXME: use r3 here instead of r2 */ u.u_nsucode.sg_attr = (!nt?0x14:sep);
u.u_segmts[USEG].sg_attr = (!nd?0x14:0); /*FIXME: use r2 here instead of r3 */ u.u_segmts[USEG].sg_attr = (!nd?0x14:0);
u.u_segmts[NUSEGS-1].sg_attr = (!ns?0x14:0x20); u.u_segmts[NUSEGS-1].sg_attr = (!ns?0x14:0x20);
sureg(); sureg();
return(0); 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) sestabur(nt, nd, ns, sep)
register unsigned nt, ns, sep; register unsigned nt, ns, sep;
char nd; char nd;
{ {
char stakseg; char stakseg;
if(nt > 256) { if(nt > CPAS) {
u.u_error = ENOMEM; u.u_error = ENOMEM;
return(-1); return(-1);
} }
@ -120,7 +113,7 @@ char nd;
} }
if(stakseg == u.u_stakseg) { if(stakseg == u.u_stakseg) {
u.u_segmts[NUSEGS-1].sg_limit = (!nt?0:-nt+256); u.u_segmts[NUSEGS-1].sg_limit = (!nt?0:(CPAS-nt));
u.u_segmts[NUSEGS-1].sg_attr = (!nt?20:32); u.u_segmts[NUSEGS-1].sg_attr = (!nt?20:32);
return(0); return(0);
} }
@ -154,7 +147,7 @@ segureg()
for(i=0;i<u.u_nsegs;i++) { for(i=0;i<u.u_nsegs;i++) {
segno = u.u_segno[i]&STAK; segno = u.u_segno[i]&STAK;
j = u.u_segmts[i].sg_attr&0x14; j = u.u_segmts[i].sg_attr&0x14;
if (u.u_segno[i] & 0x80){ if (u.u_segno[i] & NUSEGS){
u.u_segmts[i].sg_base = caddr; u.u_segmts[i].sg_base = caddr;
if(u.u_segmts[i].sg_limit > 0 || !j) if(u.u_segmts[i].sg_limit > 0 || !j)
caddr += u.u_segmts[i].sg_limit+1; /*FIXME: r2 gets used here, r3 has to be used here */ caddr += u.u_segmts[i].sg_limit+1; /*FIXME: r2 gets used here, r3 has to be used here */
@ -199,7 +192,7 @@ ldsdr(segno, sbase, slimit, sattr)
segmnt->sg_base = sbase; segmnt->sg_base = sbase;
if(slimit != 0xffff) if(slimit != 0xffff)
segmnt->sg_limit = ((segno == u.u_stakseg)?0x100-slimit:slimit-1); segmnt->sg_limit = ((segno == u.u_stakseg)?CPAS-slimit:slimit-1);
if(sattr != 0xffff) if(sattr != 0xffff)
segmnt->sg_attr = sattr; segmnt->sg_attr = sattr;