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fixed eflags IF/IOPL update

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@476 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2003-11-23 23:09:40 +00:00
parent 6dca2016fc
commit 4136f33c7e
4 changed files with 70 additions and 59 deletions
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32
target-i386/op.c
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@ -1138,38 +1138,36 @@ void OPPROTO op_set_cc_op(void)
CC_OP = PARAM1;
}
#define FL_UPDATE_MASK16 (FL_UPDATE_MASK32 & 0xffff)
/* XXX: clear VIF/VIP in all ops ? */
void OPPROTO op_movl_eflags_T0(void)
{
int eflags;
eflags = T0;
CC_SRC = eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C);
DF = 1 - (2 * ((eflags >> 10) & 1));
/* we also update some system flags as in user mode */
env->eflags = (env->eflags & ~FL_UPDATE_MASK32) |
(eflags & FL_UPDATE_MASK32);
load_eflags(T0, (TF_MASK | AC_MASK | ID_MASK));
}
void OPPROTO op_movw_eflags_T0(void)
{
int eflags;
eflags = T0;
CC_SRC = eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C);
DF = 1 - (2 * ((eflags >> 10) & 1));
/* we also update some system flags as in user mode */
env->eflags = (env->eflags & ~FL_UPDATE_MASK16) |
(eflags & FL_UPDATE_MASK16);
load_eflags(T0, (TF_MASK | AC_MASK | ID_MASK) & 0xffff);
}
void OPPROTO op_movl_eflags_T0_io(void)
{
load_eflags(T0, (TF_MASK | AC_MASK | ID_MASK | IF_MASK));
}
void OPPROTO op_movw_eflags_T0_io(void)
{
load_eflags(T0, (TF_MASK | AC_MASK | ID_MASK | IF_MASK) & 0xffff);
}
void OPPROTO op_movl_eflags_T0_cpl0(void)
{
load_eflags(T0, FL_UPDATE_CPL0_MASK);
load_eflags(T0, (TF_MASK | AC_MASK | ID_MASK | IF_MASK | IOPL_MASK));
}
void OPPROTO op_movw_eflags_T0_cpl0(void)
{
load_eflags(T0, FL_UPDATE_CPL0_MASK & 0xffff);
load_eflags(T0, (TF_MASK | AC_MASK | ID_MASK | IF_MASK | IOPL_MASK) & 0xffff);
}
#if 0