diogo/yap-6.3
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- separate user_try and user_retry

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- make sure we have slots inited in retrying user C code.
This commit is contained in:
Vitor Santos Costa 2009-06-01 15:30:22 -05:00
parent d6ed058157
commit 95f28228f6
1 changed files with 38 additions and 6 deletions
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44
C/absmi.c
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@ -7635,14 +7635,14 @@ Yap_absmi(int inp)
CPredicate f = (CPredicate)(PREG->u.OtapFs.f);
saveregs();
SREG = (CELL *) ((f) ());
/* This last instruction changes B B*/
/* This last instruction changes B B*/
#ifdef CUT_C
while (POP_CHOICE_POINT(B)){
cut_c_pop();
}
#endif
setregs();
}
setregs();
if (!SREG) {
#ifdef CUT_C
/* Removes the cut functions from the stack
@ -7712,13 +7712,13 @@ Yap_absmi(int inp)
#endif
SET_BB(B_YREG);
ENDCACHE_Y();
TRYUSERCC:
Yap_PrologMode = UserCCallMode;
ASP = YENV;
/* for slots to work */
Yap_StartSlots();
saveregs();
save_machine_regs();
SREG = (CELL *) YAP_Execute(PREG->u.OtapFs.p, (CPredicate)(PREG->u.OtapFs.f));
SREG = (CELL *) YAP_ExecuteFirst(PREG->u.OtapFs.p, (CPredicate)(PREG->u.OtapFs.f));
EX = 0L;
restore_machine_regs();
setregs();
@ -7760,7 +7760,39 @@ Yap_absmi(int inp)
HBREG = H;
restore_args(PREG->u.OtapFs.s);
ENDCACHE_Y();
goto TRYUSERCC;
Yap_PrologMode = UserCCallMode;
ASP = YENV;
/* for slots to work */
Yap_StartSlots();
saveregs();
save_machine_regs();
SREG = (CELL *) YAP_ExecuteNext(PREG->u.OtapFs.p, (CPredicate)(PREG->u.OtapFs.f));
EX = 0L;
restore_machine_regs();
setregs();
Yap_PrologMode = UserMode;
if (!SREG) {
#ifdef CUT_C
/* Removes the cut functions from the stack
without executing them because we have fail
and not cuted the predicate*/
while(POP_CHOICE_POINT(B))
cut_c_pop();
#endif
FAIL();
}
if ((CELL *) B == YREG && ASP != (CELL *) B) {
/* as Luis says, the predicate that did the try C might
* have left some data on the stack. We should preserve
* it, unless the builtin also did cut */
YREG = ASP;
HBREG = PROTECT_FROZEN_H(B);
}
PREG = CPREG;
YREG = ENV;
CACHE_A1();
JMPNext();
ENDBOp();
#ifdef CUT_C